Mercurial > gemma
annotate pkg/controllers/stretches.go @ 3439:d7ddb21f7017 fairway-avail-csv
Prepared to write the fairway availibilty as CSV, too. WIP.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 24 May 2019 11:20:15 +0200 |
parents | 6994602d2935 |
children | ae6c09fbc590 |
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) 2099 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 |
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14 package controllers |
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15 |
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16 import ( |
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17 "context" |
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18 "database/sql" |
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19 "encoding/csv" |
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20 "fmt" |
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21 "log" |
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22 "net/http" |
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23 "runtime" |
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24 "strings" |
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25 "sync" |
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26 "time" |
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27 |
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28 "gemma.intevation.de/gemma/pkg/middleware" |
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29 "github.com/gorilla/mux" |
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30 ) |
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31 |
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32 const ( |
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33 selectSectionBottlenecks = ` |
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34 SELECT |
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35 distinct(b.objnam), |
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36 b.limiting |
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37 FROM waterway.sections s, waterway.bottlenecks b |
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38 WHERE ST_Intersects(b.area, s.area) AND s.name = $1` |
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39 |
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40 selectStretchBottlenecks = ` |
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41 SELECT |
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42 distinct(b.objnam), |
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43 b.limiting |
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44 FROM waterway.stretches s, waterway.bottlenecks b |
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45 WHERE ST_Intersects(b.area, s.area) AND s.name = $1` |
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46 ) |
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47 |
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48 type ( |
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49 stretchBottleneck struct { |
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50 name string |
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51 limiting string |
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52 } |
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53 |
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54 stretchBottlenecks []stretchBottleneck |
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55 |
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56 fullStretchBottleneck struct { |
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57 *stretchBottleneck |
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58 measurements availMeasurements |
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59 ldc []float64 |
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60 breaks []float64 |
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61 access func(*availMeasurement) float64 |
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62 } |
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63 ) |
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64 |
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65 func (bns stretchBottlenecks) contains(limiting string) bool { |
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66 for i := range bns { |
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67 if bns[i].limiting == limiting { |
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68 return true |
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69 } |
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70 } |
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71 return false |
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72 } |
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73 |
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74 func loadFullStretchBottleneck( |
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75 ctx context.Context, |
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76 conn *sql.Conn, |
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77 bn *stretchBottleneck, |
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78 los int, |
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79 from, to time.Time, |
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80 depthbreaks, widthbreaks []float64, |
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81 ) (*fullStretchBottleneck, error) { |
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82 measurements, err := loadDepthValues(ctx, conn, bn.name, los, from, to) |
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83 if err != nil { |
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84 return nil, err |
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85 } |
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86 ldc, err := loadLDCReferenceValue(ctx, conn, bn.name) |
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87 if err != nil { |
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88 return nil, err |
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89 } |
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90 |
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91 var access func(*availMeasurement) float64 |
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92 var breaks []float64 |
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93 |
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94 switch bn.limiting { |
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95 case "width": |
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96 access = (*availMeasurement).getWidth |
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97 breaks = widthbreaks |
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98 case "depth": |
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99 access = (*availMeasurement).getDepth |
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100 breaks = depthbreaks |
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101 default: |
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102 log.Printf( |
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103 "warn: unknown limitation '%s'. default to 'depth'.\n", |
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104 bn.limiting) |
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105 access = (*availMeasurement).getDepth |
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106 breaks = depthbreaks |
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107 } |
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108 |
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109 return &fullStretchBottleneck{ |
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110 stretchBottleneck: bn, |
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111 measurements: measurements, |
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112 ldc: ldc, |
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113 breaks: breaks, |
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114 access: access, |
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115 }, nil |
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116 } |
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117 |
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118 func loadStretchBottlenecks( |
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119 ctx context.Context, |
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120 conn *sql.Conn, |
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121 stretch bool, |
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122 name string, |
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123 ) (stretchBottlenecks, error) { |
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124 var sql string |
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125 if stretch { |
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126 sql = selectStretchBottlenecks |
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127 } else { |
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128 sql = selectSectionBottlenecks |
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129 } |
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130 |
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131 rows, err := conn.QueryContext(ctx, sql, name) |
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132 if err != nil { |
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133 return nil, err |
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134 } |
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135 defer rows.Close() |
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136 |
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137 var bns stretchBottlenecks |
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138 |
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139 for rows.Next() { |
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140 var bn stretchBottleneck |
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141 if err := rows.Scan( |
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142 &bn.name, |
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143 &bn.limiting, |
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144 ); err != nil { |
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145 return nil, err |
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146 } |
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147 bns = append(bns, bn) |
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148 } |
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149 |
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150 if err := rows.Err(); err != nil { |
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151 return nil, err |
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152 } |
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153 |
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154 return bns, nil |
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155 } |
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156 |
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157 func stretchAvailableFairwayDepth(rw http.ResponseWriter, req *http.Request) { |
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158 |
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159 vars := mux.Vars(req) |
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160 stretch := vars["kind"] == "stretch" |
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161 name := vars["name"] |
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162 |
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163 mode := intervalMode(req.FormValue("mode")) |
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164 |
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165 depthbreaks, widthbreaks := afdRefs, afdRefs |
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166 |
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167 from, ok := parseFormTime(rw, req, "from", time.Now().AddDate(-1, 0, 0)) |
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168 if !ok { |
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169 return |
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170 } |
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171 |
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172 to, ok := parseFormTime(rw, req, "to", from.AddDate(1, 0, 0)) |
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173 if !ok { |
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174 return |
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175 } |
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176 |
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177 if to.Before(from) { |
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178 to, from = from, to |
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179 } |
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180 |
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181 los, ok := parseFormInt(rw, req, "los", 1) |
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182 if !ok { |
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183 return |
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184 } |
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185 |
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186 conn := middleware.GetDBConn(req) |
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187 ctx := req.Context() |
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188 |
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189 bns, err := loadStretchBottlenecks(ctx, conn, stretch, name) |
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190 if err != nil { |
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191 http.Error( |
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192 rw, fmt.Sprintf("DB error: %v.", err), |
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193 http.StatusInternalServerError) |
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194 return |
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195 } |
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196 |
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197 if len(bns) == 0 { |
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198 http.Error(rw, "No bottlenecks found.", http.StatusNotFound) |
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199 return |
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200 } |
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201 |
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202 if b := req.FormValue("depthbreaks"); b != "" { |
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203 depthbreaks = breaksToReferenceValue(b) |
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204 } |
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205 |
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206 if b := req.FormValue("widthbreaks"); b != "" { |
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207 widthbreaks = breaksToReferenceValue(b) |
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208 } |
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209 |
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210 useDepth, useWidth := bns.contains("depth"), bns.contains("width") |
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211 |
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212 if useDepth && useWidth && len(widthbreaks) != len(depthbreaks) { |
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213 http.Error( |
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214 rw, |
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215 fmt.Sprintf("class breaks lengths differ: %d != %d", |
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216 len(widthbreaks), len(depthbreaks)), |
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217 http.StatusBadRequest, |
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218 ) |
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219 return |
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220 } |
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221 |
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222 log.Printf("info: time interval: (%v - %v)\n", from, to) |
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223 |
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224 var loaded []*fullStretchBottleneck |
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225 var errors []error |
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226 |
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227 for i := range bns { |
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228 l, err := loadFullStretchBottleneck( |
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229 ctx, |
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230 conn, |
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231 &bns[i], |
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232 los, |
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233 from, to, |
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234 depthbreaks, widthbreaks, |
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235 ) |
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236 if err != nil { |
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237 log.Printf("error: %v\n", err) |
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238 errors = append(errors, err) |
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239 continue |
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240 } |
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241 loaded = append(loaded, l) |
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242 } |
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243 |
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244 if len(loaded) == 0 { |
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245 http.Error( |
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246 rw, |
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247 fmt.Sprintf("No bottleneck loaded: %v", joinErrors(errors)), |
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248 http.StatusInternalServerError, |
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249 ) |
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250 return |
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251 } |
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252 |
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253 type ( |
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254 result struct { |
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255 label string |
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256 from, to time.Time |
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257 ldc, breaks []time.Duration |
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258 } |
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259 |
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260 calculation struct { |
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261 result *result |
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262 ldc, breaks []time.Duration |
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263 } |
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264 |
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265 job struct { |
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266 result *result |
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267 bn *fullStretchBottleneck |
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268 } |
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269 ) |
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270 |
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271 n := runtime.NumCPU() / 2 |
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272 if n == 0 { |
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273 n = 1 |
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274 } |
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275 |
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276 jobCh := make(chan job) |
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277 calcCh := make(chan calculation, n) |
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278 done := make(chan struct{}) |
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279 |
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280 var wg sync.WaitGroup |
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281 |
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282 go func() { |
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283 defer close(done) |
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284 for calc := range calcCh { |
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285 ldc := calc.result.ldc |
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286 for i, v := range calc.ldc { |
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287 ldc[i] += v |
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288 } |
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289 breaks := calc.result.breaks |
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290 for i, v := range calc.breaks { |
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291 breaks[i] += v |
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292 } |
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293 } |
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294 }() |
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295 |
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296 for i := 0; i < n; i++ { |
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297 wg.Add(1) |
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298 go func() { |
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299 defer wg.Done() |
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300 for job := range jobCh { |
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301 bn := job.bn |
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302 res := job.result |
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303 ldc := bn.measurements.classify( |
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304 res.from, res.to, |
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305 bn.ldc, |
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306 bn.access, |
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307 ) |
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308 breaks := bn.measurements.classify( |
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309 res.from, res.to, |
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310 bn.breaks, |
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311 bn.access, |
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312 ) |
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313 calcCh <- calculation{ |
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314 result: res, |
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315 breaks: breaks, |
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316 ldc: ldc, |
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317 } |
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318 } |
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319 }() |
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320 } |
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321 |
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322 var results []*result |
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323 |
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324 interval := intervals[mode](from, to) |
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325 |
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326 var breaks []float64 |
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327 |
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328 if useDepth { |
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329 breaks = depthbreaks |
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330 } else { |
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331 breaks = widthbreaks |
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332 } |
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333 |
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334 for pfrom, pto, label := interval(); label != ""; pfrom, pto, label = interval() { |
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335 |
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336 res := &result{ |
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337 label: label, |
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338 from: pfrom, |
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339 to: pto, |
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340 ldc: make([]time.Duration, 2), |
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341 breaks: make([]time.Duration, len(breaks)+1), |
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342 } |
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343 results = append(results, res) |
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344 |
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345 for _, bn := range loaded { |
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346 jobCh <- job{bn: bn, result: res} |
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347 } |
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348 } |
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349 close(jobCh) |
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350 wg.Wait() |
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351 close(calcCh) |
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352 <-done |
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353 |
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354 rw.Header().Add("Content-Type", "text/csv") |
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355 |
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356 out := csv.NewWriter(rw) |
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357 |
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358 // label, classes, lnwl |
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359 record := make([]string, 1+1+len(breaks)+1) |
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360 record[0] = "#label" |
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361 record[1] = "# >= LDC [h]" |
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362 for i, v := range breaks { |
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363 if useDepth && useWidth { |
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364 if i == 0 { |
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365 record[2] = "# < break_1 [h]" |
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366 } |
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367 record[i+3] = fmt.Sprintf("# >= break_%d", i+1) |
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368 } else { |
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369 if i == 0 { |
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370 record[2] = fmt.Sprintf("# < %.2f [h]", v) |
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371 } |
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372 record[i+3] = fmt.Sprintf("# >= %.2f [h]", v) |
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373 } |
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374 } |
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375 |
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376 if err := out.Write(record); err != nil { |
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377 // Too late for HTTP status message. |
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378 log.Printf("error: %v\n", err) |
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379 return |
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380 } |
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381 |
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382 // Normalize to look like as we have only one bottleneck. |
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383 scale := 1 / float64(len(loaded)) |
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384 |
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385 for _, r := range results { |
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386 record[0] = r.label |
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387 record[1] = fmt.Sprintf("%.3f", r.ldc[1].Hours()*scale) |
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388 |
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389 for i, d := range r.breaks { |
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390 record[2+i] = fmt.Sprintf("%.3f", d.Hours()*scale) |
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391 } |
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392 |
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393 if err := out.Write(record); err != nil { |
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394 // Too late for HTTP status message. |
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395 log.Printf("error: %v\n", err) |
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396 return |
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397 } |
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398 } |
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399 |
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400 out.Flush() |
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401 if err := out.Error(); err != nil { |
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402 // Too late for HTTP status message. |
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403 log.Printf("error: %v\n", err) |
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404 } |
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405 } |
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406 |
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407 func joinErrors(errors []error) string { |
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408 var b strings.Builder |
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409 for _, err := range errors { |
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410 if b.Len() > 0 { |
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411 b.WriteString(", ") |
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changeset
|
412 } |
2b5c22f6bb1f
available fairway depth: Implemented backend for sections and stretches.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3245
diff
changeset
|
413 b.WriteString(err.Error()) |
2b5c22f6bb1f
available fairway depth: Implemented backend for sections and stretches.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3245
diff
changeset
|
414 } |
2b5c22f6bb1f
available fairway depth: Implemented backend for sections and stretches.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3245
diff
changeset
|
415 return b.String() |
2b5c22f6bb1f
available fairway depth: Implemented backend for sections and stretches.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3245
diff
changeset
|
416 } |
2b5c22f6bb1f
available fairway depth: Implemented backend for sections and stretches.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3245
diff
changeset
|
417 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
418 func stretchAvailabilty(rw http.ResponseWriter, req *http.Request) { |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
419 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
420 vars := mux.Vars(req) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
421 stretch := vars["kind"] == "stretch" |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
422 name := vars["name"] |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
423 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
424 if name == "" { |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
425 http.Error( |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
426 rw, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
427 fmt.Sprintf("Missing %s name", vars["kind"]), |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
428 http.StatusBadRequest, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
429 ) |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
430 return |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
431 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
432 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
433 from, ok := parseFormTime(rw, req, "form", time.Now().AddDate(-1, 0, 0)) |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
434 if !ok { |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
435 return |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
436 } |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
437 |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
438 to, ok := parseFormTime(rw, req, "to", from.AddDate(1, 0, 0)) |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
439 if !ok { |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
440 return |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
441 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
442 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
443 if to.Before(from) { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
444 to, from = from, to |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
445 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
446 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
447 los, ok := parseFormInt(rw, req, "los", 1) |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
448 if !ok { |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
449 return |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
450 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
451 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
452 depthbreaks, widthbreaks := afdRefs, afdRefs |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
453 |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
454 if b := req.FormValue("depthbreaks"); b != "" { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
455 depthbreaks = breaksToReferenceValue(b) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
456 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
457 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
458 if b := req.FormValue("widthbreaks"); b != "" { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
459 widthbreaks = breaksToReferenceValue(b) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
460 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
461 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
462 conn := middleware.GetDBConn(req) |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
463 ctx := req.Context() |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
464 |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
465 bns, err := loadStretchBottlenecks(ctx, conn, stretch, name) |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
466 if err != nil { |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
467 http.Error( |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
468 rw, fmt.Sprintf("DB error: %v.", err), |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
469 http.StatusInternalServerError) |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
470 return |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
471 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
472 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
473 if len(bns) == 0 { |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
474 http.Error( |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
475 rw, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
476 "No bottlenecks found.", |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
477 http.StatusNotFound, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
478 ) |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
479 return |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
480 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
481 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
482 useDepth, useWidth := bns.contains("depth"), bns.contains("width") |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
483 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
484 if useDepth && useWidth && len(widthbreaks) != len(depthbreaks) { |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
485 http.Error( |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
486 rw, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
487 fmt.Sprintf("class breaks lengths differ: %d != %d", |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
488 len(widthbreaks), len(depthbreaks)), |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
489 http.StatusBadRequest, |
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
490 ) |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
491 return |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
492 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
493 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
494 log.Printf("info: time interval: (%v - %v)\n", from, to) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
495 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
496 var loaded []*fullStretchBottleneck |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
497 var errors []error |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
498 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
499 for i := range bns { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
500 l, err := loadFullStretchBottleneck( |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
501 ctx, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
502 conn, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
503 &bns[i], |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
504 los, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
505 from, to, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
506 depthbreaks, widthbreaks, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
507 ) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
508 if err != nil { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
509 log.Printf("error: %v\n", err) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
510 errors = append(errors, err) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
511 continue |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
512 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
513 loaded = append(loaded, l) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
514 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
515 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
516 if len(loaded) == 0 { |
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517 http.Error( |
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518 rw, |
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519 fmt.Sprintf("No bottleneck loaded: %v", joinErrors(errors)), |
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Prepared to write the fairway availibilty as CSV, too. WIP.
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parents:
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520 http.StatusInternalServerError, |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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|
521 ) |
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522 return |
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fairway availibilty: Implemented for streches and sections.
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523 } |
6994602d2935
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524 |
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525 type calculation struct { |
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526 ldc, afd []time.Duration |
6994602d2935
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527 } |
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fairway availibilty: Implemented for streches and sections.
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|
528 |
6994602d2935
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529 n := runtime.NumCPU() / 2 |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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530 if n == 0 { |
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fairway availibilty: Implemented for streches and sections.
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|
531 n = 1 |
6994602d2935
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532 } |
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533 |
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534 var breaks []float64 |
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535 if useDepth { |
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536 breaks = depthbreaks |
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537 } else { |
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538 breaks = widthbreaks |
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539 } |
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|
540 |
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|
541 jobCh := make(chan *fullStretchBottleneck) |
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542 calcCh := make(chan calculation, n) |
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543 done := make(chan struct{}) |
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544 |
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545 ldc := make([]time.Duration, 2) |
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546 afd := make([]time.Duration, len(breaks)+1) |
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547 |
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548 var wg sync.WaitGroup |
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|
549 |
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550 go func() { |
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551 defer close(done) |
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552 for calc := range calcCh { |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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553 for i, v := range calc.ldc { |
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554 ldc[i] += v |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
555 } |
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556 for i, v := range calc.afd { |
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|
557 afd[i] += v |
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parents:
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|
558 } |
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|
559 } |
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560 }() |
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fairway availibilty: Implemented for streches and sections.
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|
561 |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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562 for i := 0; i < n; i++ { |
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parents:
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563 wg.Add(1) |
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564 go func() { |
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|
565 defer wg.Done() |
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parents:
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|
566 for bn := range jobCh { |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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567 ldc := bn.measurements.classify( |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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diff
changeset
|
568 from, to, |
6994602d2935
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changeset
|
569 bn.ldc, |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
570 (*availMeasurement).getValue, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
571 ) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
572 |
6994602d2935
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parents:
3424
diff
changeset
|
573 afd := bn.measurements.classify( |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
574 from, to, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
575 bn.breaks, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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|
576 bn.access, |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
577 ) |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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|
578 calcCh <- calculation{ldc: ldc, afd: afd} |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
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changeset
|
579 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
3424
diff
changeset
|
580 }() |
6994602d2935
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parents:
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changeset
|
581 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
582 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff
changeset
|
583 for _, bn := range loaded { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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changeset
|
584 jobCh <- bn |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
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changeset
|
585 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
586 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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|
587 close(jobCh) |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
3424
diff
changeset
|
588 wg.Wait() |
6994602d2935
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|
589 close(calcCh) |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
590 <-done |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
591 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
592 duration := to.Sub(from) * time.Duration(len(loaded)) |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
593 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
594 lnwlPercents := durationsToPercentage(duration, ldc) |
6994602d2935
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parents:
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diff
changeset
|
595 afdPercents := durationsToPercentage(duration, afd) |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
596 |
3439
d7ddb21f7017
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
597 _ = lnwlPercents |
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parents:
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changeset
|
598 _ = afdPercents |
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diff
changeset
|
599 |
d7ddb21f7017
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
600 /* // TODO: Rewrite this |
d7ddb21f7017
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
changeset
|
601 |
3430
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff
changeset
|
602 type ldcOutput struct { |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff
changeset
|
603 Value float64 `json:"value"` |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
604 Below float64 `json:"below"` |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
605 Above float64 `json:"above"` |
6994602d2935
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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3424
diff
changeset
|
606 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3424
diff
changeset
|
607 |
6994602d2935
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parents:
3424
diff
changeset
|
608 type intervalOutput struct { |
6994602d2935
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changeset
|
609 From *float64 `json:"from,omitempty"` |
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fairway availibilty: Implemented for streches and sections.
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changeset
|
610 To *float64 `json:"to,omitempty"` |
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changeset
|
611 Percent float64 `json:"percent"` |
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fairway availibilty: Implemented for streches and sections.
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|
612 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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changeset
|
613 |
6994602d2935
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diff
changeset
|
614 type output struct { |
6994602d2935
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diff
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|
615 LDC []intervalOutput `json:"ldc"` |
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changeset
|
616 AFD []intervalOutput `json:"afd"` |
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diff
changeset
|
617 } |
6994602d2935
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parents:
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changeset
|
618 |
6994602d2935
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diff
changeset
|
619 out := output{ |
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parents:
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changeset
|
620 LDC: []intervalOutput{ |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
changeset
|
621 {To: new(float64), Percent: lnwlPercents[0]}, |
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|
622 {From: new(float64), Percent: lnwlPercents[1]}, |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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|
623 }, |
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parents:
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624 } |
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parents:
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625 |
6994602d2935
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parents:
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626 // XXX: In mixed mode the breaks are not correct! |
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parents:
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627 |
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parents:
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628 for i, percent := range afdPercents { |
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parents:
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629 var from, to *float64 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
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630 switch { |
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parents:
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631 case i == 0: |
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parents:
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632 to = &breaks[i] |
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parents:
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633 case i == len(afdPercents)-1: |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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634 from = &breaks[len(breaks)-1] |
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fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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635 default: |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
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636 from = &breaks[i-1] |
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parents:
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637 to = &breaks[i] |
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parents:
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638 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
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639 out.AFD = append(out.AFD, intervalOutput{ |
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parents:
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640 From: from, |
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parents:
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641 To: to, |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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642 Percent: percent, |
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parents:
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643 }) |
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fairway availibilty: Implemented for streches and sections.
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parents:
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644 } |
6994602d2935
fairway availibilty: Implemented for streches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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|
645 |
6994602d2935
fairway availibilty: Implemented for streches and sections.
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parents:
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646 jr = JSONResult{Result: &out} |
3245
60f25cbe77fb
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parents:
diff
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647 return |
3439
d7ddb21f7017
Prepared to write the fairway availibilty as CSV, too. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
3430
diff
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648 */ |
3245
60f25cbe77fb
Added API stubs from fairway availabilty for stretches and sections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
649 } |