annotate pkg/imports/bn.go @ 3528:b9e331c1e616

Ignore zero length and whitespace-only values
author Tom Gottfried <tom@intevation.de>
date Wed, 29 May 2019 16:00:28 +0200
parents 6592396f5061
children e98ea184538e
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) 2018, 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 // * Tom Gottfried <tom.gottfried@intevation.de>
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14
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15 package imports
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16
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17 import (
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18 "context"
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19 "database/sql"
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20 "errors"
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21 "regexp"
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22 "strconv"
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23 "strings"
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24 "time"
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25
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26 "gemma.intevation.de/gemma/pkg/soap/ifbn"
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27 )
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28
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29 // Bottleneck is an import job to import
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30 // bottlenecks from an IFBN SOAP service.
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31 type Bottleneck struct {
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32 // URL is the URL of the SOAP service.
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33 URL string `json:"url"`
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34 // Tolerance used for axis snapping
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35 Tolerance float64 `json:"tolerance"`
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36 // Insecure indicates if HTTPS traffic
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37 // should validate certificates or not.
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38 Insecure bool `json:"insecure"`
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39 }
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40
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41 // BNJobKind is the import queue type identifier.
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42 const BNJobKind JobKind = "bn"
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43
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44 const (
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45 hasBottleneckSQL = `
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46 SELECT true FROM waterway.bottlenecks WHERE bottleneck_id = $1`
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47
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48 insertBottleneckSQL = `
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49 INSERT INTO waterway.bottlenecks (
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50 bottleneck_id,
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51 gauge_location,
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52 gauge_validity,
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53 objnam,
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54 nobjnm,
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55 stretch,
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56 area,
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57 rb,
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58 lb,
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59 responsible_country,
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60 revisiting_time,
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61 limiting,
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62 date_info,
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63 source_organization
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64 ) VALUES (
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65 $1,
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66 isrs_fromText($2),
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67 (SELECT validity FROM waterway.gauges
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68 WHERE location = isrs_fromText($2) AND NOT erased),
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69 $3,
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70 $4,
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71 isrsrange(least(isrs_fromText($5), isrs_fromText($6)),
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72 greatest(isrs_fromText($5), isrs_fromText($6))),
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73 ISRSrange_area(
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74 ISRSrange_axis(isrsrange(least(isrs_fromText($5), isrs_fromText($6)),
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75 greatest(isrs_fromText($5), isrs_fromText($6))),
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76 $14),
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77 (SELECT ST_Collect(CAST(area AS geometry))
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78 FROM waterway.waterway_area)),
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79 $7,
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80 $8,
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81 $9,
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82 $10,
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83 $11,
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84 $12,
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85 $13
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86 )
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87 RETURNING id`
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88
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89 insertBottleneckMaterialSQL = `
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90 INSERT INTO waterway.bottlenecks_riverbed_materials (
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91 bottleneck_id,
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92 riverbed
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93 ) VALUES (
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94 $1,
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95 $2
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96 )`
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97 )
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98
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99 type bnJobCreator struct{}
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100
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101 func init() {
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102 RegisterJobCreator(BNJobKind, bnJobCreator{})
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103 }
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104
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105 func (bnJobCreator) Description() string { return "bottlenecks" }
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106
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107 func (bnJobCreator) AutoAccept() bool { return false }
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108
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109 func (bnJobCreator) Create() Job { return new(Bottleneck) }
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110
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111 func (bnJobCreator) Depends() [2][]string {
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112 return [2][]string{
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113 {"bottlenecks", "bottlenecks_riverbed_materials"},
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114 {"gauges", "distance_marks_virtual", "waterway_axis", "waterway_area"},
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115 }
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116 }
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117
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118 const (
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119 bnStageDoneSQL = `
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120 UPDATE waterway.bottlenecks SET staging_done = true
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121 WHERE id IN (
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122 SELECT key from import.track_imports
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123 WHERE import_id = $1 AND
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124 relation = 'waterway.bottlenecks'::regclass)`
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125 )
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126
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127 // StageDone moves the imported bottleneck out of the staging area.
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128 func (bnJobCreator) StageDone(
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129 ctx context.Context,
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130 tx *sql.Tx,
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131 id int64,
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132 ) error {
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133 _, err := tx.ExecContext(ctx, bnStageDoneSQL, id)
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134 return err
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135 }
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136
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137 // CleanUp of a bottleneck import is a NOP.
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138 func (*Bottleneck) CleanUp() error { return nil }
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139
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140 var rblbRe = regexp.MustCompile(`(..)_(..)`)
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141
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142 func splitRBLB(s string) (*string, *string) {
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143 m := rblbRe.FindStringSubmatch(s)
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144 if len(m) == 0 {
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145 return nil, nil
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146 }
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147 return &m[1], &m[2]
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148 }
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149
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150 // Do executes the actual bottleneck import.
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151 func (bn *Bottleneck) Do(
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152 ctx context.Context,
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153 importID int64,
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154 conn *sql.Conn,
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155 feedback Feedback,
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156 ) (interface{}, error) {
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157
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158 fetch := func() ([]*ifbn.BottleNeckType, error) {
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159 client := ifbn.NewIBottleneckService(bn.URL, bn.Insecure, nil)
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160
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161 req := &ifbn.Export_bn_by_isrs{}
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162
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163 resp, err := client.Export_bn_by_isrs(req)
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164 if err != nil {
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165 return nil, err
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166 }
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167
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168 if resp.Export_bn_by_isrsResult == nil {
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169 return nil, errors.New("no Bottlenecks found")
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170 }
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171
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172 return resp.Export_bn_by_isrsResult.BottleNeckType, nil
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173 }
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174
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175 return storeBottlenecks(ctx, fetch, importID, conn, feedback, bn.Tolerance)
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176 }
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177
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178 func storeBottlenecks(
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179 ctx context.Context,
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180 fetch func() ([]*ifbn.BottleNeckType, error),
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181 importID int64,
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182 conn *sql.Conn,
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183 feedback Feedback,
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184 tolerance float64,
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185 ) (interface{}, error) {
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186 start := time.Now()
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187
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188 bns, err := fetch()
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189 if err != nil {
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190 return nil, err
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191 }
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192
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193 feedback.Info("Found %d bottlenecks for import", len(bns))
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194
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195 var hasStmt, insertStmt, insertMaterialStmt, trackStmt *sql.Stmt
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196
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197 for _, x := range []struct {
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198 sql string
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199 stmt **sql.Stmt
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200 }{
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201 {hasBottleneckSQL, &hasStmt},
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07f996b0e14a Bottleneck import: Cleaned up source a bit (removed outdated TODOs).
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202 {insertBottleneckSQL, &insertStmt},
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203 {insertBottleneckMaterialSQL, &insertMaterialStmt},
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204 {trackImportSQL, &trackStmt},
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205 } {
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206 var err error
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207 if *x.stmt, err = conn.PrepareContext(ctx, x.sql); err != nil {
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208 return nil, err
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209 }
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210 defer (*x.stmt).Close()
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211 }
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212
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213 var nids []string
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214
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215 feedback.Info("Tolerance used to snap waterway axis: %g", tolerance)
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216
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217 for _, bn := range bns {
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218 if err := storeBottleneck(
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219 ctx, importID, conn, feedback, bn, &nids, tolerance,
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220 hasStmt, insertStmt, insertMaterialStmt, trackStmt); err != nil {
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221 return nil, err
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222 }
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223 }
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diff changeset
224 if len(nids) == 0 {
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225 return nil, UnchangedError("No new bottlenecks inserted")
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226 }
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227
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228 feedback.Info("Storing %d bottlenecks took %s", len(nids), time.Since(start))
1906
32c56e6c089a Stretch import: Added forgotten source file.
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diff changeset
229 feedback.Info("Import of bottlenecks was successful")
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diff changeset
230 summary := struct {
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1835d1c9eb9b Store bottleneck_id's instead of id's in bottleneck import summary.
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diff changeset
231 Bottlenecks []string `json:"bottlenecks"`
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diff changeset
232 }{
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233 Bottlenecks: nids,
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234 }
1906
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diff changeset
235 return &summary, nil
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diff changeset
236 }
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237
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238 func storeBottleneck(
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239 ctx context.Context,
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240 importID int64,
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241 conn *sql.Conn,
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242 feedback Feedback,
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diff changeset
243 bn *ifbn.BottleNeckType,
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diff changeset
244 nids *[]string,
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diff changeset
245 tolerance float64,
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diff changeset
246 hasStmt, insertStmt, insertMaterialStmt, trackStmt *sql.Stmt,
2532
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parents: 2253
diff changeset
247 ) error {
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248
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249 tx, err := conn.BeginTx(ctx, nil)
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250 if err != nil {
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251 return err
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252 }
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253 defer tx.Rollback()
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254
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255 var found bool
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256 err = tx.StmtContext(ctx, hasStmt).QueryRowContext(ctx,
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257 bn.Bottleneck_id).Scan(&found)
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258 switch {
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259 case err == sql.ErrNoRows:
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260 // This is good.
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261 case err != nil:
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262 return err
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263 case found:
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264 feedback.Info("'%s' already in database. Skip", bn.OBJNAM)
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265 // TODO: Deep comparison database vs. SOAP.
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266 return nil
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267 }
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268
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269 rb, lb := splitRBLB(bn.Rb_lb)
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270
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271 var revisitingTime *int
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272 if bn.Revisiting_time != nil &&
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273 len(strings.TrimSpace(*bn.Revisiting_time)) > 0 {
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274 i, err := strconv.Atoi(*bn.Revisiting_time)
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275 if err != nil {
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276 feedback.Warn("Cannot convert '%s' to number of months",
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277 *bn.Revisiting_time)
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278 } else {
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279 revisitingTime = &i
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280 }
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281 }
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282
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283 var limiting, country string
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284
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285 if bn.Limiting_factor != nil {
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286 limiting = string(*bn.Limiting_factor)
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287 }
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288
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289 if bn.Responsible_country != nil {
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290 country = string(*bn.Responsible_country)
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291 }
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292
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293 var nid int64
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294
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295 err = tx.StmtContext(ctx, insertStmt).QueryRowContext(
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296 ctx,
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297 bn.Bottleneck_id,
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298 bn.Fk_g_fid,
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299 bn.OBJNAM,
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300 bn.NOBJNM,
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301 bn.From_ISRS, bn.To_ISRS,
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302 rb,
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303 lb,
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304 country,
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305 revisitingTime,
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306 limiting,
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307 bn.Date_Info,
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308 bn.Source,
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dc4fae4bdb8f Expose axis snapping tolerance to users
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diff changeset
309 tolerance,
2532
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310 ).Scan(&nid)
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311 if err != nil {
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312 feedback.Warn("Failed to insert '%s' into database", bn.OBJNAM)
2548
6b34d0fb4498 Improve user facing error messages for stretch area generation
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313 feedback.Warn(handleError(err).Error())
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314 return nil
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315 }
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316
2999
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parents: 2765
diff changeset
317 if bn.Riverbed != nil {
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parents: 2765
diff changeset
318 for _, material := range bn.Riverbed.Material {
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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diff changeset
319 if material != nil {
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diff changeset
320 mat := string(*material)
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diff changeset
321 if _, err := tx.StmtContext(ctx,
1de0764f6af4 Use context for preparation of transaction-specific statements
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diff changeset
322 insertMaterialStmt).ExecContext(
2999
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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parents: 2765
diff changeset
323 ctx, nid, material); err != nil {
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2765
diff changeset
324 feedback.Warn(
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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parents: 2765
diff changeset
325 "Failed to insert riverbed material '%s' for bottleneck '%s'.",
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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parents: 2765
diff changeset
326 mat, bn.OBJNAM)
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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parents: 2765
diff changeset
327 feedback.Warn(handleError(err).Error())
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
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parents: 2765
diff changeset
328 }
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2765
diff changeset
329 }
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2765
diff changeset
330 }
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2765
diff changeset
331 }
b3c3c5b5b7c1 Bottleneck import: Import riverbed materials, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2765
diff changeset
332
3164
1de0764f6af4 Use context for preparation of transaction-specific statements
Tom Gottfried <tom@intevation.de>
parents: 2999
diff changeset
333 if _, err := tx.StmtContext(ctx, trackStmt).ExecContext(
2532
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diff changeset
334 ctx, importID, "waterway.bottlenecks", nid,
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
335 ); err != nil {
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parents: 2253
diff changeset
336 return err
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
337 }
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parents: 2253
diff changeset
338 if err = tx.Commit(); err != nil {
452bc714bfd9 Continue importing bottlenecks if one item fails
Tom Gottfried <tom@intevation.de>
parents: 2253
diff changeset
339 return err
452bc714bfd9 Continue importing bottlenecks if one item fails
Tom Gottfried <tom@intevation.de>
parents: 2253
diff changeset
340 }
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Tom Gottfried <tom@intevation.de>
parents: 2253
diff changeset
341 feedback.Info("Inserted '%s' into database", bn.OBJNAM)
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parents: 2253
diff changeset
342 *nids = append(*nids, bn.Bottleneck_id)
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parents: 2253
diff changeset
343 return nil
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
344 }