Mercurial > gemma

annotate pkg/imports/isr.go @ 4768:a2f16bbcc846 direct-diff

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author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 21 Oct 2019 02:01:56 +0200
parents f66e5b2fa894
children f4abfd0ee8ad
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 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 imports
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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 "time"
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20
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21 "gemma.intevation.de/gemma/pkg/common"
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22 "gemma.intevation.de/gemma/pkg/octree"
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23 )
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24
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25 type IsoRefresh struct {
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26 ClassBreaks string `json:"class-breaks"`
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27 }
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28
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29 // ISRJobKind is the unique name of this import job type.
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30 const ISRJobKind JobKind = "isr"
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31
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32 func init() { RegisterJobCreator(ISRJobKind, isrJobCreator{}) }
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33
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34 type isrJobCreator struct{}
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35
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36 func (isrJobCreator) Description() string { return "refresh iso lines" }
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37
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38 func (isrJobCreator) AutoAccept() bool { return true }
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39
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40 func (isrJobCreator) Create() Job { return new(IsoRefresh) }
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41
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42 func (isrJobCreator) StageDone(context.Context, *sql.Tx, int64) error {
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43 return nil
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44 }
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45
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46 func (isrJobCreator) Depends() [2][]string {
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47 return srJobCreator{}.Depends()
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48 }
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49
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50 const (
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51 fetchSoundingResultsIDsSQL = `
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52 SELECT bottleneck_id, id
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53 FROM waterway.sounding_results
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54 ORDER BY bottleneck_id
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55 `
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56 deleteIsoAreasSQL = `
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57 DELETE FROM waterway.sounding_results_iso_areas
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58 WHERE sounding_result_id = $1
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59 `
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60 )
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61
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62 func (isr *IsoRefresh) CleanUp() error { return nil }
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63
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64 type bottleneckSoundingResults struct {
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65 bn string
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66 srs []int64
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67 }
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68
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69 func fetchBottleneckResults(
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70 ctx context.Context,
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71 conn *sql.Conn,
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72 ) ([]bottleneckSoundingResults, error) {
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73
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74 rows, err := conn.QueryContext(ctx, fetchSoundingResultsIDsSQL)
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75 if err != nil {
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76 return nil, err
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77 }
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78 defer rows.Close()
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79
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80 var ids []bottleneckSoundingResults
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81
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82 for rows.Next() {
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83 var bn string
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84 var sr int64
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85 if err := rows.Scan(&bn, &sr); err != nil {
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86 return nil, err
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87 }
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88 if len(ids) > 0 {
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89 if ids[len(ids)-1].bn != bn {
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90 ids = append(ids, bottleneckSoundingResults{
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91 bn: bn,
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92 srs: []int64{sr},
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93 })
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94 } else {
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95 ids[len(ids)-1].srs = append(ids[len(ids)-1].srs, sr)
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96 }
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97 } else {
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98 ids = []bottleneckSoundingResults{
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99 {bn: bn, srs: []int64{sr}},
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100 }
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101 }
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102 }
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103 if err := rows.Err(); err != nil {
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104 return nil, err
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105 }
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106 return ids, nil
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107 }
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108
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109 // Do executes the actual refreshing of the iso areas.
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110 func (isr *IsoRefresh) Do(
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111 ctx context.Context,
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112 importID int64,
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113 conn *sql.Conn,
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114 feedback Feedback,
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115 ) (interface{}, error) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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116
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
117 start := time.Now()
4767
f66e5b2fa894 Wording: Speak of iso areas instead of iso lines when refreshing the sounding results after a configuration change.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4669
diff changeset
118 feedback.Info("Regenerating iso areas for sounding results " +
4255
d69a3b19a1ae Indicate to the user what triggered the import
Tom Gottfried <tom@intevation.de>
parents: 4220
diff changeset
119 "after configuration change")
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents:
diff changeset
120 defer func() {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents:
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121 feedback.Info(
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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122 "Processing all sounding results took %v.",
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
123 time.Since(start))
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
124 }()
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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125
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
126 heights, err := octree.ParseClassBreaks(isr.ClassBreaks)
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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127 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
128 return nil, err
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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129 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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130
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
131 bns, err := fetchBottleneckResults(ctx, conn)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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132 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
133 return nil, err
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
134 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
135
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
136 for i := range bns {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
137 start := time.Now()
4216
cbc75527916f Refresh iso contour lines import: Improved logging a bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4215
diff changeset
138 feedback.Info("Processing bottleneck '%s' ...", bns[i].bn)
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 err := isr.processBottleneck(
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
140 ctx, conn,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 heights,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142 &bns[i],
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
143 )
4216
cbc75527916f Refresh iso contour lines import: Improved logging a bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4215
diff changeset
144 feedback.Info("Processing took %v.", time.Since(start))
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
145 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
146 return nil, err
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
147 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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148 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
149
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
150 return nil, nil
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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151 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
152
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
153 func (isr *IsoRefresh) processBottleneck(
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
154 ctx context.Context,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
155 conn *sql.Conn,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
156 heights []float64,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
157 bn *bottleneckSoundingResults,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
158 ) error {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
159 // Do one transaction per bottleneck.
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
160 tx, err := conn.BeginTx(ctx, nil)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
161 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
162 return nil
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
163 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
164 defer tx.Rollback()
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
165
4571
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
166 insertAreasStmt, err := tx.Prepare(insertIsoAreasSQL)
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
167 if err != nil {
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
168 return err
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
169 }
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
170 defer insertAreasStmt.Close()
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
171
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
172 // For all sounding results in bottleneck.
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
173 for _, sr := range bn.srs {
4658
4bbfe3dd2ab5 Completed usage of STRTrees.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4640
diff changeset
174 tree, err := octree.FetchMeshDirectly(ctx, tx, sr)
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
175 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
176 return err
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
177 }
4658
4bbfe3dd2ab5 Completed usage of STRTrees.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4640
diff changeset
178 hs := octree.ExtrapolateClassBreaks(heights, tree.Min().Z, tree.Max().Z)
4256
4ca884dfc470 Prevent heights duplicates in iso line calculations.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4220
diff changeset
179 hs = common.DedupFloat64s(hs)
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
180
4571
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
181 // Delete the old iso areas.
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
182 if _, err := tx.ExecContext(ctx, deleteIsoAreasSQL, sr); err != nil {
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
183 return err
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
184 }
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
185
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
186 // Calculate and store the iso areas.
4768
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
187 box := octree.Box2D{
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
188 X1: tree.Min().X,
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
189 Y1: tree.Min().Y,
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
190 X2: tree.Max().X,
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
191 Y2: tree.Max().Y,
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
192 }
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
193
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
194 raster := octree.NewRaster(box, isoCellSize)
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
195 raster.Rasterize(tree.Value)
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
196 areas := raster.Trace(hs)
a2f16bbcc846 Morph differences: Directly raster A and subtract B as a raster.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4767
diff changeset
197
4571
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
198 for i, a := range areas {
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
199 if len(a) == 0 {
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
200 continue
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
201 }
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
202 if _, err := insertAreasStmt.ExecContext(
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
203 ctx,
4669
65845c6522fb Fixed EPSG call in iso regeneration import.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4658
diff changeset
204 sr, hs[i], tree.EPSG(),
4571
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
205 a.AsWKB(),
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
206 contourTolerance,
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
207 ); err != nil {
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
208 return err
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
209 }
a413b4a89bcc Update areas if config has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4257
diff changeset
210 }
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
211 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
212
4220
d8b736ba3f32 Refresh iso contour lines import: Commit the changes!
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4216
diff changeset
213 return tx.Commit()
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
214 }