annotate pkg/imports/bn.go @ 2532:452bc714bfd9

Continue importing bottlenecks if one item fails
author Tom Gottfried <tom@intevation.de>
date Thu, 07 Mar 2019 10:46:34 +0100
parents cfc523c70e90
children 6b34d0fb4498
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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 "time"
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24
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25 "gemma.intevation.de/gemma/pkg/soap/ifbn"
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26 )
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27
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28 // Bottleneck is an import job to import
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29 // bottlenecks from an IFBN SOAP service.
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30 type Bottleneck struct {
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31 // URL is the URL of the SOAP service.
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32 URL string `json:"url"`
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33 // Insecure indicates if HTTPS traffic
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34 // should validate certificates or not.
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35 Insecure bool `json:"insecure"`
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36 }
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37
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38 // BNJobKind is the import queue type identifier.
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39 const BNJobKind JobKind = "bn"
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40
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41 const (
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42 hasBottleneckSQL = `
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43 SELECT true FROM waterway.bottlenecks WHERE bottleneck_id = $1`
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44
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45 insertBottleneckSQL = `
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46 INSERT INTO waterway.bottlenecks (
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47 bottleneck_id,
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48 fk_g_fid,
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49 objnam,
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50 nobjnm,
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51 stretch,
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52 area,
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53 rb,
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54 lb,
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55 responsible_country,
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56 revisiting_time,
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57 limiting,
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58 date_info,
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59 source_organization
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60 ) VALUES(
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61 $1,
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62 isrs_fromText($2),
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63 $3,
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64 $4,
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65 isrsrange(isrs_fromText($5), isrs_fromText($6)),
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66 ISRSrange_area(
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67 isrsrange(isrs_fromText($5), isrs_fromText($6)),
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68 (SELECT ST_Collect(CAST(area AS geometry))
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69 FROM waterway.waterway_area)),
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70 $7,
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71 $8,
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72 $9,
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73 $10,
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74 $11,
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75 $12,
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76 $13
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77 )
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78 RETURNING id`
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79 )
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80
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81 type bnJobCreator struct{}
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82
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83 func init() {
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84 RegisterJobCreator(BNJobKind, bnJobCreator{})
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85 }
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86
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87 func (bnJobCreator) Description() string { return "bottlenecks" }
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88
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89 func (bnJobCreator) AutoAccept() bool { return false }
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90
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91 func (bnJobCreator) Create() Job { return new(Bottleneck) }
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92
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93 func (bnJobCreator) Depends() []string {
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94 return []string{
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95 "gauges",
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96 "bottlenecks",
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97 }
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98 }
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99
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100 const (
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101 bnStageDoneSQL = `
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102 UPDATE waterway.bottlenecks SET staging_done = true
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103 WHERE id IN (
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104 SELECT key from import.track_imports
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105 WHERE import_id = $1 AND
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106 relation = 'waterway.bottlenecks'::regclass)`
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107 )
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108
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109 // StageDone moves the imported bottleneck out of the staging area.
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110 func (bnJobCreator) StageDone(
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111 ctx context.Context,
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112 tx *sql.Tx,
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113 id int64,
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114 ) error {
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115 _, err := tx.ExecContext(ctx, bnStageDoneSQL, id)
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116 return err
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117 }
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118
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119 // CleanUp of a bottleneck import is a NOP.
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120 func (*Bottleneck) CleanUp() error { return nil }
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121
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122 var rblbRe = regexp.MustCompile(`(..)_(..)`)
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123
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124 func splitRBLB(s string) (string, string) {
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125 m := rblbRe.FindStringSubmatch(s)
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diff changeset
126 if len(m) == 0 {
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diff changeset
127 return "", ""
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diff changeset
128 }
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diff changeset
129 return m[1], m[2]
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130 }
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diff changeset
131
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diff changeset
132 func revisitingTime(s string) int {
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diff changeset
133 v, err := strconv.Atoi(s)
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diff changeset
134 if err != nil {
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135 v = 0
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diff changeset
136 }
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diff changeset
137 return v
cf0ca4a9812a Bottleneck import: Implemented backend to store bottlenecks in database.
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diff changeset
138 }
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139
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140 // Do executes the actual bottleneck import.
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141 func (bn *Bottleneck) Do(
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parents:
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142 ctx context.Context,
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parents:
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143 importID int64,
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parents:
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144 conn *sql.Conn,
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parents:
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145 feedback Feedback,
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diff changeset
146 ) (interface{}, error) {
2195
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147
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148 fetch := func() ([]*ifbn.BottleNeckType, error) {
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149 client := ifbn.NewIBottleneckService(bn.URL, bn.Insecure, nil)
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150
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151 req := &ifbn.Export_bn_by_isrs{}
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152
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153 resp, err := client.Export_bn_by_isrs(req)
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154 if err != nil {
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155 return nil, err
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156 }
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157
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158 if resp.Export_bn_by_isrsResult == nil {
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159 return nil, errors.New("no Bottlenecks found")
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160 }
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161
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162 return resp.Export_bn_by_isrsResult.BottleNeckType, nil
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163 }
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diff changeset
164
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165 return storeBottlenecks(ctx, fetch, importID, conn, feedback)
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166 }
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167
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diff changeset
168 func storeBottlenecks(
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diff changeset
169 ctx context.Context,
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diff changeset
170 fetch func() ([]*ifbn.BottleNeckType, error),
2195
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diff changeset
171 importID int64,
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172 conn *sql.Conn,
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173 feedback Feedback,
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parents: 2187
diff changeset
174 ) (interface{}, error) {
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diff changeset
175 start := time.Now()
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176
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177 bns, err := fetch()
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178 if err != nil {
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179 return nil, err
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parents:
diff changeset
180 }
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181
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182 feedback.Info("Found %d bottlenecks for import", len(bns))
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183
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184 var hasStmt, insertStmt, trackStmt *sql.Stmt
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185
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diff changeset
186 for _, x := range []struct {
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187 sql string
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diff changeset
188 stmt **sql.Stmt
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189 }{
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diff changeset
190 {hasBottleneckSQL, &hasStmt},
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07f996b0e14a Bottleneck import: Cleaned up source a bit (removed outdated TODOs).
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parents: 1646
diff changeset
191 {insertBottleneckSQL, &insertStmt},
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diff changeset
192 {trackImportSQL, &trackStmt},
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diff changeset
193 } {
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diff changeset
194 var err error
2532
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diff changeset
195 if *x.stmt, err = conn.PrepareContext(ctx, x.sql); err != nil {
1580
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diff changeset
196 return nil, err
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diff changeset
197 }
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diff changeset
198 defer (*x.stmt).Close()
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056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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diff changeset
199 }
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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diff changeset
200
1611
1835d1c9eb9b Store bottleneck_id's instead of id's in bottleneck import summary.
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parents: 1595
diff changeset
201 var nids []string
1572
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diff changeset
202
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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parents: 1569
diff changeset
203 for _, bn := range bns {
2532
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diff changeset
204 if err := storeBottleneck(
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diff changeset
205 ctx, importID, conn, feedback, bn, &nids,
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diff changeset
206 hasStmt, insertStmt, trackStmt); err != nil {
1572
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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diff changeset
207 return nil, err
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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parents: 1569
diff changeset
208 }
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1569
diff changeset
209 }
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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parents: 1569
diff changeset
210 if len(nids) == 0 {
2532
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parents: 2253
diff changeset
211 return nil, UnchangedError("No new bottlenecks inserted")
1569
cf0ca4a9812a Bottleneck import: Implemented backend to store bottlenecks in database.
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diff changeset
212 }
1531
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parents:
diff changeset
213
1572
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parents: 1569
diff changeset
214 feedback.Info("Storing %d bottlenecks took %s", len(nids), time.Since(start))
1906
32c56e6c089a Stretch import: Added forgotten source file.
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parents: 1902
diff changeset
215 feedback.Info("Import of bottlenecks was successful")
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cf0ca4a9812a Bottleneck import: Implemented backend to store bottlenecks in database.
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diff changeset
216 summary := struct {
1611
1835d1c9eb9b Store bottleneck_id's instead of id's in bottleneck import summary.
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parents: 1595
diff changeset
217 Bottlenecks []string `json:"bottlenecks"`
1569
cf0ca4a9812a Bottleneck import: Implemented backend to store bottlenecks in database.
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diff changeset
218 }{
1572
056a86b24be2 Made bottleneck primary key an int. Attention: This may break something!
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diff changeset
219 Bottlenecks: nids,
1569
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diff changeset
220 }
1906
32c56e6c089a Stretch import: Added forgotten source file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1902
diff changeset
221 return &summary, nil
1531
24445a618513 Added stub for bottleneck importer.
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parents:
diff changeset
222 }
2532
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parents: 2253
diff changeset
223
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parents: 2253
diff changeset
224 func storeBottleneck(
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parents: 2253
diff changeset
225 ctx context.Context,
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parents: 2253
diff changeset
226 importID int64,
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parents: 2253
diff changeset
227 conn *sql.Conn,
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parents: 2253
diff changeset
228 feedback Feedback,
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parents: 2253
diff changeset
229 bn *ifbn.BottleNeckType,
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parents: 2253
diff changeset
230 nids *[]string,
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parents: 2253
diff changeset
231 hasStmt, insertStmt, trackStmt *sql.Stmt,
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Tom Gottfried <tom@intevation.de>
parents: 2253
diff changeset
232 ) error {
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parents: 2253
diff changeset
233
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parents: 2253
diff changeset
234 tx, err := conn.BeginTx(ctx, nil)
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parents: 2253
diff changeset
235 if err != nil {
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parents: 2253
diff changeset
236 return err
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
237 }
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
238 defer tx.Rollback()
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parents: 2253
diff changeset
239
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parents: 2253
diff changeset
240 var found bool
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parents: 2253
diff changeset
241 err = tx.Stmt(hasStmt).QueryRowContext(ctx, bn.Bottleneck_id).Scan(&found)
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parents: 2253
diff changeset
242 switch {
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
243 case err == sql.ErrNoRows:
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parents: 2253
diff changeset
244 // This is good.
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
245 case err != nil:
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parents: 2253
diff changeset
246 return err
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parents: 2253
diff changeset
247 case found:
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parents: 2253
diff changeset
248 feedback.Info("'%s' already in database. Skip", bn.OBJNAM)
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parents: 2253
diff changeset
249 // TODO: Deep comparison database vs. SOAP.
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parents: 2253
diff changeset
250 return nil
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
251 }
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
diff changeset
252
452bc714bfd9 Continue importing bottlenecks if one item fails
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parents: 2253
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253 rb, lb := splitRBLB(bn.Rb_lb)
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254
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255 var limiting, country string
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256
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257 if bn.Limiting_factor != nil {
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258 limiting = string(*bn.Limiting_factor)
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259 }
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260
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261 if bn.Responsible_country != nil {
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262 country = string(*bn.Responsible_country)
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263 }
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264
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265 var nid int64
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266
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267 err = tx.Stmt(insertStmt).QueryRowContext(
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268 ctx,
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269 bn.Bottleneck_id,
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270 bn.Fk_g_fid,
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271 bn.OBJNAM,
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272 bn.NOBJNM,
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273 bn.From_ISRS, bn.To_ISRS,
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274 rb,
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275 lb,
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276 country,
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277 revisitingTime(bn.Revisiting_time),
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278 limiting,
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279 bn.Date_Info,
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280 bn.Source,
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281 ).Scan(&nid)
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282 if err != nil {
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283 feedback.Warn("Failed to insert '%s' into database", bn.OBJNAM)
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284 feedback.Warn("%v", err)
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285 return nil
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286 }
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287
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288 if _, err := tx.Stmt(trackStmt).ExecContext(
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289 ctx, importID, "waterway.bottlenecks", nid,
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290 ); err != nil {
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291 return err
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292 }
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293 if err = tx.Commit(); err != nil {
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294 return err
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295 }
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296 feedback.Info("Inserted '%s' into database", bn.OBJNAM)
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297 *nids = append(*nids, bn.Bottleneck_id)
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298 return nil
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299 }