Mercurial > gemma

annotate pkg/controllers/gauges.go @ 2800:db1052bc162a

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Added GET /data/longterm-waterlevels/{gauge}
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 25 Mar 2019 17:31:56 +0100
parents 2806821cfd63
children 46a9a7c1281f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2019 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
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14 package controllers
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15
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
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16 import (
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17 "database/sql"
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18 "encoding/csv"
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19 "fmt"
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20 "log"
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21 "net/http"
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22 "runtime"
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23 "sort"
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24 "strconv"
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25 "sync"
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26 "time"
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27
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
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28 "github.com/gorilla/mux"
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29 "gonum.org/v1/gonum/stat"
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30
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31 "gemma.intevation.de/gemma/pkg/common"
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32 "gemma.intevation.de/gemma/pkg/middleware"
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33 "gemma.intevation.de/gemma/pkg/models"
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34 )
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35
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
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36 const (
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37 selectPredictedObserveredSQL = `
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38 SELECT
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39 a.measure_date AS measure_date,
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40 a.water_level AS predicted,
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41 b.water_level AS observed
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42 FROM waterway.gauge_measurements a JOIN waterway.gauge_measurements b
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43 ON a.fk_gauge_id = b.fk_gauge_id AND
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44 a.measure_date = b.measure_date AND
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45 a.predicted AND NOT b.predicted
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46 WHERE
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47 a.fk_gauge_id = (
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48 $1::char(2),
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49 $2::char(3),
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50 $3::char(5),
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51 $4::char(5),
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52 $5::int
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53 ) AND
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54 a.measure_date BETWEEN
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55 $6::timestamp AND $6::timestamp - '72hours'::interval
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56 ORDER BY a.measure_date
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57 `
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58
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59 selectWaterlevelsSQL = `
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60 SELECT
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61 measure_date,
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62 water_level,
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63 value_min,
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64 value_max,
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65 predicted
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66 FROM waterway.gauge_measurements
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67 WHERE
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68 `
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69
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70 selectAllWaterlevelsMeasuredSQL = `
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71 SELECT
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72 measure_date,
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73 water_level
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74 FROM waterway.gauge_measurements
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75 WHERE
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76 NOT predicted
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77 AND fk_gauge_id = (
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78 $1::char(2),
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79 $2::char(3),
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80 $3::char(5),
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81 $4::char(5),
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82 $5::int
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83 )
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84 `
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85 selectWaterlevelsMeasuredSQL = `
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86 SELECT
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87 measure_date,
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88 water_level
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89 FROM waterway.gauge_measurements
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90 WHERE
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91 NOT predicted
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92 AND fk_gauge_id = (
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93 $1::char(2),
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94 $2::char(3),
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95 $3::char(5),
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96 $4::char(5),
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97 $5::int
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98 )
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99 AND measure_date BETWEEN
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100 $6::timestamp with time zone AND
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101 $7::timestamp with time zone
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102 ORDER BY measure_date
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103 `
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104 )
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105
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106 func float64format(v float64) string {
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107 return strconv.FormatFloat(v, 'f', -1, 64)
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108 }
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109
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110 func nullFloat64format(v sql.NullFloat64) string {
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111 if v.Valid {
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112 return float64format(v.Float64)
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113 }
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114 return ""
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115 }
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116
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117 func boolFormat(b bool) string {
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118 if b {
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119 return "t"
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120 }
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121 return "f"
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122 }
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123
2800
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124 func longtermWaterlevels(rw http.ResponseWriter, req *http.Request) {
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125
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126 gauge := mux.Vars(req)["gauge"]
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127
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128 isrs, err := models.IsrsFromString(gauge)
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129 if err != nil {
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130 http.Error(
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131 rw, fmt.Sprintf("error: Invalid ISRS code: %v", err),
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132 http.StatusBadRequest)
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133 return
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134 }
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135
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136 conn := middleware.GetDBConn(req)
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137
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138 ctx := req.Context()
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139
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140 rows, err := conn.QueryContext(
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141 ctx,
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142 selectAllWaterlevelsMeasuredSQL,
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143 isrs.CountryCode,
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144 isrs.LoCode,
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145 isrs.FairwaySection,
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146 isrs.Orc,
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147 isrs.Hectometre,
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148 )
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149 if err != nil {
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150 http.Error(
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diff changeset
151 rw, fmt.Sprintf("error: %v", err),
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diff changeset
152 http.StatusInternalServerError)
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153 return
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154 }
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155 defer rows.Close()
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156
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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157 type dayKey struct {
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158 month byte
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159 day byte
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160 }
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161
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162 entries := make(map[dayKey][]float64)
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163
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164 start := time.Now()
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165
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166 for rows.Next() {
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167 var value float64
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168 var date time.Time
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169 if err := rows.Scan(&date, &value); err != nil {
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170 http.Error(
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diff changeset
171 rw, fmt.Sprintf("error: %v", err),
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parents: 2783
diff changeset
172 http.StatusInternalServerError)
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parents: 2783
diff changeset
173 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
174 key := dayKey{
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175 month: byte(date.Month()),
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176 day: byte(date.Day()),
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177 }
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178 entries[key] = append(entries[key], value)
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179 }
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180
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diff changeset
181 if err := rows.Err(); err != nil {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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182 http.Error(
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
183 rw, fmt.Sprintf("error: %v", err),
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parents: 2783
diff changeset
184 http.StatusInternalServerError)
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parents: 2783
diff changeset
185 return
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
186 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
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187
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
188 log.Printf("info: loading entries took %s\n", time.Since(start))
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189
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
190 log.Printf("info: days found: %d\n", len(entries))
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191
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diff changeset
192 stats := time.Now()
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193
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diff changeset
194 type result struct {
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195 key dayKey
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196 values []float64
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diff changeset
197 min float64
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parents: 2783
diff changeset
198 max float64
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parents: 2783
diff changeset
199 mean float64
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parents: 2783
diff changeset
200 median float64
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
201 q25 float64
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
202 q75 float64
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
203 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
204
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
205 results := make([]result, len(entries))
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206
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diff changeset
207 jobs := make(chan int)
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208
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diff changeset
209 var wg sync.WaitGroup
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210
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
211 for i, n := 0, runtime.NumCPU(); i < n; i++ {
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diff changeset
212 wg.Add(1)
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diff changeset
213 go func() {
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diff changeset
214 defer wg.Done()
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diff changeset
215 for job := range jobs {
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diff changeset
216 r := &results[job]
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parents: 2783
diff changeset
217 if len(r.values) == 0 {
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parents: 2783
diff changeset
218 continue
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
219 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
220 sort.Float64s(r.values)
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parents: 2783
diff changeset
221 r.min = r.values[0]
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diff changeset
222 r.max = r.values[len(r.values)-1]
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diff changeset
223 r.median = r.values[len(r.values)/2]
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parents: 2783
diff changeset
224 r.mean = stat.Mean(r.values, nil)
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parents: 2783
diff changeset
225 r.q25 = stat.Quantile(0.25, stat.Empirical, r.values, nil)
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diff changeset
226 r.q75 = stat.Quantile(0.75, stat.Empirical, r.values, nil)
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diff changeset
227 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
228 }()
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
229 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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diff changeset
230
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
231 var i int
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
232 for k, v := range entries {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
233 results[i].key = k
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
234 results[i].values = v
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
235 jobs <- i
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
236 i++
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
237 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
238 close(jobs)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
239 wg.Wait()
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
240
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
241 sort.Slice(results, func(i, j int) bool {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
242 ki, kj := results[i].key, results[j].key
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
243 if d := int(ki.month) - int(kj.month); d != 0 {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
244 return d < 0
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
245 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
246 return ki.day < kj.day
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
247 })
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
248
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
249 log.Printf("info: calculating stats took %s\n", time.Since(stats))
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
250
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
251 rw.Header().Add("Content-Type", "text/csv")
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
252
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
253 out := csv.NewWriter(rw)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
254
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
255 record := []string{
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
256 "#date",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
257 "#min",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
258 "#max",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
259 "#mean",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
260 "#median",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
261 "#q25",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
262 "#q75",
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
263 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
264
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
265 if err := out.Write(record); err != nil {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
266 log.Printf("error: %v\n", err)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
267 // Too late for an HTTP error code.
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
268 return
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
269 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
270
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
271 for i := range results {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
272 r := &results[i]
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
273 record[0] = fmt.Sprintf("%02d-%02d", r.key.day, r.key.month)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
274 record[1] = float64format(r.min)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
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parents: 2783
diff changeset
275 record[2] = float64format(r.max)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
276 record[3] = float64format(r.mean)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
277 record[4] = float64format(r.median)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
278 record[5] = float64format(r.q25)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
279 record[6] = float64format(r.q75)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
280 if err := out.Write(record); err != nil {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
281 log.Printf("error: %v\n", err)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
282 // Too late for an HTTP error code.
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
283 return
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
284 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
285 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
286
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
287 out.Flush()
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
288 if err := out.Error(); err != nil {
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
289 log.Printf("error: %v", err)
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
290 // Too late for an HTTP error code.
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
291 return
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
292 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
293 }
db1052bc162a Added GET /data/longterm-waterlevels/{gauge}
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2783
diff changeset
294
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
295 func averageWaterlevels(rw http.ResponseWriter, req *http.Request) {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
296 gauge := mux.Vars(req)["gauge"]
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
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parents: 2741
diff changeset
297
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
298 isrs, err := models.IsrsFromString(gauge)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
299 if err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
300 http.Error(
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
301 rw, fmt.Sprintf("error: Invalid ISRS code: %v", err),
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
302 http.StatusBadRequest)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
303 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
304 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
305
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
306 var from, to time.Time
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
307
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
308 if t := req.FormValue("to"); t != "" {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
309 var err error
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
310 if to, err = time.ParseInLocation(common.DateFormat, t, time.UTC); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
311 http.Error(
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
312 rw, fmt.Sprintf("error: bad from date: %v", err),
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
313 http.StatusBadRequest)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
314 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
315 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
316 } else {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
317 y, m, d := time.Now().Date()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
318 to = time.Date(y, m, d, 0, 0, 0, 0, time.UTC)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
319 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
320
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
321 if f := req.FormValue("from"); f != "" {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
322 var err error
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
323 if from, err = time.ParseInLocation(common.DateFormat, f, time.UTC); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
324 http.Error(
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
325 rw, fmt.Sprintf("error: bad from date: %v", err),
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
326 http.StatusBadRequest)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
327 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
328 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
329 } else {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
330 from = to.AddDate(-1, 0, 0)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
331 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
332
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
333 to = to.AddDate(0, 0, 1).Add(-time.Nanosecond)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
334
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
335 if to.Before(from) {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
336 from, to = to, from
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
337 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
338
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
339 conn := middleware.GetDBConn(req)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
340
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
341 ctx := req.Context()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
342
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
343 rows, err := conn.QueryContext(
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
344 ctx,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
345 selectWaterlevelsMeasuredSQL,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
346 isrs.CountryCode,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
347 isrs.LoCode,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
348 isrs.FairwaySection,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
349 isrs.Orc,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
350 isrs.Hectometre,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
351 from, to,
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
352 )
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
353 if err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
354 http.Error(
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
355 rw, fmt.Sprintf("error: %v", err),
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
356 http.StatusInternalServerError)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
357 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
358 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
359 defer rows.Close()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
360
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
361 rw.Header().Add("Content-Type", "text/csv")
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
362
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
363 out := csv.NewWriter(rw)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
364
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
365 var last time.Time
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
366 var values []float64
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
367
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
368 record := []string{
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
369 "#date",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
370 "#min",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
371 "#max",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
372 "#mean",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
373 "#median",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
374 "#q25",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
375 "#q75",
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
376 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
377
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
378 if err := out.Write(record); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
379 log.Printf("error: %v\n", err)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
380 // Too late for an HTTP error code.
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
381 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
382 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
383
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
384 write := func() error {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
385 if len(values) > 0 {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
386 sort.Float64s(values)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
387 // date
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
388 record[0] = last.Format(common.DateFormat)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
389 // min
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
390 record[1] = float64format(values[0])
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
391 // max
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
392 record[2] = float64format(values[len(values)-1])
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
393 // mean
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
394 record[3] = float64format(stat.Mean(values, nil))
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
395 // median
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
396 record[4] = float64format(values[len(values)/2])
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
397 // Q25
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
398 record[5] = float64format(
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
399 stat.Quantile(0.25, stat.Empirical, values, nil))
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
400 // Q75
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
401 record[6] = float64format(
2762
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
402 stat.Quantile(0.75, stat.Empirical, values, nil))
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
403
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
404 err := out.Write(record)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
405 values = values[:0]
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
406 return err
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
407 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
408 return nil
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
409 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
410
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
411 for rows.Next() {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
412 var (
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
413 date time.Time
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
414 value float64
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
415 )
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
416 if err := rows.Scan(&date, &value); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
417 log.Printf("error: %v\n", err)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
418 // Too late for an HTTP error code.
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
419 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
420 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
421 oy, om, od := last.Date()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
422 ny, nm, nd := date.Date()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
423 if oy != ny || om != nm || od != nd {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
424 if err := write(); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
425 log.Printf("error: %v\n", err)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
426 // Too late for an HTTP error code.
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
427 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
428 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
429 last = date
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
430 } else {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
431 values = append(values, value)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
432 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
433 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
434 write()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
435
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
436 if err := rows.Err(); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
437 log.Printf("error: %v", err)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
438 // Too late for an HTTP error code.
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
439 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
440 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
441
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
442 out.Flush()
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
443 if err := out.Error(); err != nil {
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
444 log.Printf("error: %v", err)
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
445 // Too late for an HTTP error code.
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
446 return
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
447 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
448
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
449 }
f95ec0bb565c Added endpoint to deliver average waterlevels for a given gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2741
diff changeset
450
2741
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
451 func nashSutcliffe(
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
452 _ interface{},
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
453 req *http.Request,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
454 conn *sql.Conn,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
455 ) (jr JSONResult, err error) {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
456 gauge := mux.Vars(req)["gauge"]
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
457
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
458 var isrs *models.Isrs
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
459 if isrs, err = models.IsrsFromString(gauge); err != nil {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
460 err = JSONError{
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
461 Code: http.StatusBadRequest,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
462 Message: fmt.Sprintf("error: Invalid ISRS code: %v", err),
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
463 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
464 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
465 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
466
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
467 var when time.Time
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
468 if w := req.FormValue("when"); w != "" {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
469 if when, err = time.Parse(models.ImportTimeFormat, w); err != nil {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
470 err = JSONError{
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
471 Code: http.StatusBadRequest,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
472 Message: fmt.Sprintf("error: wrong time format: %v", err),
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
473 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
474 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
475 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
476 } else {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
477 when = time.Now()
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
478 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
479
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
480 ctx := req.Context()
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
481
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
482 var rows *sql.Rows
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
483 if rows, err = conn.QueryContext(
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
484 ctx,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
485 selectPredictedObserveredSQL,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
486 isrs.CountryCode,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
487 isrs.LoCode,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
488 isrs.FairwaySection,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
489 isrs.Orc,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
490 isrs.Hectometre,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
491 when,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
492 ); err != nil {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
493 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
494 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
495 defer rows.Close()
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
496
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
497 var measurements []common.NSMeasurement
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
498
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
499 for rows.Next() {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
500 var m common.NSMeasurement
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
501 if err = rows.Scan(
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
502 &m.When,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
503 &m.Predicted,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
504 &m.Observed,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
505 ); err != nil {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
506 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
507 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
508 measurements = append(measurements, m)
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
509 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
510 if err = rows.Err(); err != nil {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
511 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
512 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
513
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
514 type coeff struct {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
515 Value float64 `json:"value"`
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
516 Samples int `json:"samples"`
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
517 Hours int `json:"hours"`
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
518 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
519
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
520 type coeffs struct {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
521 When models.ImportTime `json:"when"`
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
522 Coeffs []coeff `json:"coeffs"`
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
523 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
524
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
525 cs := make([]coeff, 3)
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
526 for i := range cs {
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
527 cs[i].Hours = (i + 1) * 24
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
528 cs[i].Value, cs[i].Samples = common.NashSutcliffe(
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
529 measurements,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
530 when,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
531 when.Add(time.Duration(-cs[i].Hours)*time.Hour),
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
532 )
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
533 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
534
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
535 jr = JSONResult{
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
536 Result: &coeffs{
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
537 When: models.ImportTime{when},
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
538 Coeffs: cs,
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
539 },
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
540 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
541 return
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
542 }
87aed4f9b1b8 Added calculation of Nash Sutcliffe efficiency coefficents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2694
diff changeset
543
2694
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
544 func waterlevels(rw http.ResponseWriter, req *http.Request) {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
545 gauge := mux.Vars(req)["gauge"]
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
546
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
547 isrs, err := models.IsrsFromString(gauge)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
548 if err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
549 http.Error(
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
550 rw, fmt.Sprintf("error: Invalid ISRS code: %v", err),
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
551 http.StatusBadRequest)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
552 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
553 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
554
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
555 var fb filterBuilder
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
556 fb.stmt.WriteString(selectWaterlevelsSQL)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
557
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
558 fb.cond(
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
559 " fk_gauge_id = ($%d::char(2), $%d::char(3), $%d::char(5), $%d::char(5), $%d::int) ",
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
560 isrs.CountryCode,
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
561 isrs.LoCode,
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
562 isrs.FairwaySection,
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
563 isrs.Orc,
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
564 isrs.Hectometre,
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
565 )
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
566
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
567 if from := req.FormValue("from"); from != "" {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
568 fromTime, err := time.Parse(models.ImportTimeFormat, from)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
569 if err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
570 http.Error(
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
571 rw, fmt.Sprintf("error: Invalid from time: %v", err),
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
572 http.StatusBadRequest)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
573 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
574 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
575 fb.cond("measure_date >= $%d", fromTime)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
576 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
577
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
578 if to := req.FormValue("to"); to != "" {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
579 toTime, err := time.Parse(models.ImportTimeFormat, to)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
580 if err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
581 http.Error(
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
582 rw, fmt.Sprintf("error: Invalid from time: %v", err),
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
583 http.StatusBadRequest)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
584 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
585 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
586 fb.cond("measure_date <= $%d", toTime)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
587 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
588
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
589 conn := middleware.GetDBConn(req)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
590
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
591 ctx := req.Context()
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
592
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
593 rows, err := conn.QueryContext(ctx, fb.stmt.String(), fb.args...)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
594 if err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
595 http.Error(
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
596 rw, fmt.Sprintf("error: %v", err),
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
597 http.StatusInternalServerError)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
598 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
599 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
600 defer rows.Close()
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
601
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
602 rw.Header().Add("Content-Type", "text/csv")
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
603
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
604 out := csv.NewWriter(rw)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
605
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
606 record := []string{
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
607 "#date",
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
608 "#water_level",
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
609 "#value_min",
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
610 "#value_max",
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
611 "#predicted",
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
612 }
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
613
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
614 if err := out.Write(record); err != nil {
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
615 log.Printf("error: %v", err)
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
616 // Too late for an HTTP error code.
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
617 return
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
618 }
2694
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
619
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
620 for rows.Next() {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
621 var (
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
622 measureDate time.Time
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
623 waterlevel float64
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
624 valueMin sql.NullFloat64
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
625 valueMax sql.NullFloat64
2694
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
626 predicted bool
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
627 )
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
628 if err := rows.Scan(
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
629 &measureDate,
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
630 &waterlevel,
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
631 &valueMin,
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
632 &valueMax,
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
633 &predicted,
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
634 ); err != nil {
2694
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
635 log.Printf("error: %v\n", err)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
636 // Too late for an HTTP error code.
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
637 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
638 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
639 record[0] = measureDate.Format(models.ImportTimeFormat)
2783
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
640 record[1] = float64format(waterlevel)
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
641 record[2] = nullFloat64format(valueMin)
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
642 record[3] = nullFloat64format(valueMax)
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
643 record[4] = boolFormat(predicted)
2806821cfd63 Added min and max values to CSV output of /api/data/waterlevels/{gauge} .
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2766
diff changeset
644
2694
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
645 if err := out.Write(record); err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
646 log.Printf("error: %v", err)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
647 // Too late for an HTTP error code.
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
648 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
649 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
650 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
651
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
652 if err := rows.Err(); err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
653 log.Printf("error: %v", err)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
654 // Too late for an HTTP error code.
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
655 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
656 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
657
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
658 out.Flush()
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
659 if err := out.Error(); err != nil {
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
660 log.Printf("error: %v", err)
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
661 // Too late for an HTTP error code.
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
662 return
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
663 }
0d7a4fdb9e12 Added GET /api/data/waterlevels/{gauge isrs}?from={time_a}&to={time_b} to fetch waterlevels of gauge.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
664 }