Mercurial > gemma
annotate pkg/imports/wa.go @ 1921:0059aa870a39 v2
Hotfixed stretch import.
author | Sascha Wilde <wilde@intevation.de> |
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date | Fri, 18 Jan 2019 20:26:21 +0100 |
parents | 272133cd65da |
children | 2b72f5e005aa |
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 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 "encoding/json" |
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20 "errors" |
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21 "fmt" |
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22 "io" |
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23 "strconv" |
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24 "time" |
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25 |
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26 "gemma.intevation.de/gemma/pkg/common" |
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27 "gemma.intevation.de/gemma/pkg/wfs" |
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28 ) |
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29 |
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30 // WaterwayArea is an import job to import |
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31 // the waterway area in form of polygon geometries |
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32 // and attribute data from a WFS service. |
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33 type WaterwayArea struct { |
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34 // URL the GetCapabilities URL of the WFS service. |
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35 URL string `json:"url"` |
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36 // FeatureType selects the feature type of the WFS service. |
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37 FeatureType string `json:"feature-type"` |
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38 // SortBy works around misconfigured services to |
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39 // establish a sort order to get the features. |
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40 SortBy string `json:"sort-by"` |
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41 } |
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42 |
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43 // WAJobKind is the import queue type identifier. |
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44 const WAJobKind JobKind = "wa" |
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45 |
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46 type waJobCreator struct{} |
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47 |
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48 func init() { |
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49 RegisterJobCreator(WAJobKind, waJobCreator{}) |
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50 } |
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51 |
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52 func (waJobCreator) Description() string { return "waterway area" } |
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53 |
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54 func (waJobCreator) AutoAccept() bool { return true } |
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55 |
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56 func (waJobCreator) Create(_ JobKind, data string) (Job, error) { |
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57 wa := new(WaterwayArea) |
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58 if err := common.FromJSONString(data, wa); err != nil { |
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59 return nil, err |
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60 } |
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61 return wa, nil |
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62 } |
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63 |
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64 func (waJobCreator) Depends() []string { |
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65 return []string{ |
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66 "waterway_area", |
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67 } |
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68 } |
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69 |
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70 // StageDone is a NOP for waterway area imports. |
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71 func (waJobCreator) StageDone(context.Context, *sql.Tx, int64) error { |
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72 return nil |
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73 } |
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74 |
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75 // CleanUp for waterway area imports is a NOP. |
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76 func (*WaterwayArea) CleanUp() error { return nil } |
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77 |
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78 type waterwayAreaProperties struct { |
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79 Catccl *string `json:"ienc_catccl"` |
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80 Dirimp *string `json:"ienc_dirimp"` |
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81 } |
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82 |
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83 const ( |
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84 deleteWaterwayAreaSQL = ` |
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85 WITH resp AS ( |
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86 SELECT best_utm(area::geometry) AS t, |
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87 ST_Transform(area::geometry, best_utm(area::geometry)) AS a |
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88 FROM users.responsibility_areas |
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89 WHERE country = users.current_user_country() |
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90 ) |
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91 DELETE FROM waterway.waterway_area |
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92 WHERE ST_Covers( |
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93 (SELECT a FROM resp), |
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94 ST_Transform(area::geometry, (SELECT t FROM resp))) |
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95 ` |
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96 insertWaterwayAreaSQL = ` |
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97 WITH resp AS ( |
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98 SELECT best_utm(area::geometry) AS t, |
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99 ST_Transform(area::geometry, best_utm(area::geometry)) AS a |
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100 FROM users.responsibility_areas |
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101 WHERE country = users.current_user_country() |
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102 ) |
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103 INSERT INTO waterway.waterway_area (area, catccl, dirimp) |
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104 SELECT ST_Transform(clipped.geom, 4326)::geography, $3, $4 FROM ( |
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105 SELECT (ST_Dump( |
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106 ST_Intersection( |
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107 (SELECT ST_Buffer(a, 0.0001) FROM resp), |
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108 ST_CollectionExtract(ST_MakeValid(ST_Transform( |
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109 ST_GeomFromWKB($1, $2::integer), |
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110 (SELECT t FROM resp) |
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111 )),3) |
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112 ) |
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113 )).geom AS geom |
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114 ) AS clipped |
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115 WHERE clipped.geom IS NOT NULL |
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116 ` |
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117 ) |
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118 |
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119 // Do executes the actual waterway axis import. |
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120 func (wx *WaterwayArea) Do( |
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121 ctx context.Context, |
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122 importID int64, |
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123 conn *sql.Conn, |
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124 feedback Feedback, |
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125 ) (interface{}, error) { |
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126 |
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127 start := time.Now() |
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128 |
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129 feedback.Info("Import waterway area") |
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130 |
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131 feedback.Info("Loading capabilities from %s", wx.URL) |
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132 caps, err := wfs.GetCapabilities(wx.URL) |
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133 if err != nil { |
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134 feedback.Error("Loading capabilities failed: %v", err) |
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135 return nil, err |
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136 } |
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137 |
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138 ft := caps.FindFeatureType(wx.FeatureType) |
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139 if ft == nil { |
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140 return nil, fmt.Errorf("Unknown feature type '%s'", wx.FeatureType) |
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141 } |
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142 |
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143 feedback.Info("Found feature type '%s", wx.FeatureType) |
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144 |
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145 epsg, err := wfs.CRSToEPSG(ft.DefaultCRS) |
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146 if err != nil { |
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147 feedback.Error("Unsupported CRS name '%s'", ft.DefaultCRS) |
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148 return nil, err |
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149 } |
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150 |
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151 if wx.SortBy != "" { |
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152 feedback.Info("Features will be sorted by '%s'", wx.SortBy) |
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153 } |
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154 |
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155 urls, err := wfs.GetFeaturesGET( |
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156 caps, wx.FeatureType, "application/json", wx.SortBy) |
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157 if err != nil { |
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158 feedback.Error("Cannot create GetFeature URLs. %v", err) |
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159 return nil, err |
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160 } |
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|
161 |
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162 tx, err := conn.BeginTx(ctx, nil) |
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163 if err != nil { |
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164 return nil, err |
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|
165 } |
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166 defer tx.Rollback() |
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167 |
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168 insertStmt, err := tx.PrepareContext(ctx, insertWaterwayAreaSQL) |
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169 if err != nil { |
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170 return nil, err |
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|
171 } |
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172 defer insertStmt.Close() |
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|
173 |
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174 // Delete the old features. |
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175 if _, err := tx.ExecContext(ctx, deleteWaterwayAreaSQL); err != nil { |
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|
176 return nil, err |
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|
177 } |
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|
178 |
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|
179 var ( |
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180 unsupported = stringCounter{} |
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|
181 missingProperties int |
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diff
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|
182 badProperties int |
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diff
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|
183 features int |
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diff
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|
184 ) |
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|
185 |
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186 if err := wfs.DownloadURLs(urls, func(r io.Reader) error { |
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187 rfc, err := wfs.ParseRawFeatureCollection(r) |
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Waterway area import: Implemented.
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diff
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|
188 if err != nil { |
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parents:
diff
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189 return fmt.Errorf("parsing GetFeature document failed: %v", err) |
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Waterway area import: Implemented.
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parents:
diff
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|
190 } |
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parents:
diff
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|
191 if rfc.CRS != nil { |
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|
192 crsName := rfc.CRS.Properties.Name |
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diff
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193 if epsg, err = wfs.CRSToEPSG(crsName); err != nil { |
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194 feedback.Error("Unsupported CRS: %d", crsName) |
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Waterway area import: Implemented.
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diff
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|
195 return err |
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diff
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|
196 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
197 } |
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parents:
diff
changeset
|
198 |
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parents:
diff
changeset
|
199 // No features -> ignore. |
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diff
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|
200 if rfc.Features == nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
201 return nil |
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Waterway area import: Implemented.
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parents:
diff
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|
202 } |
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Waterway area import: Implemented.
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diff
changeset
|
203 |
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diff
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|
204 feedback.Info("Using EPSG: %d", epsg) |
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Waterway area import: Implemented.
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parents:
diff
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|
205 |
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diff
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|
206 for _, feature := range rfc.Features { |
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|
207 if feature.Properties == nil || feature.Geometry.Coordinates == nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
208 missingProperties++ |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
209 continue |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
210 } |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
211 |
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Waterway area import: Implemented.
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parents:
diff
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|
212 var props waterwayAreaProperties |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
213 |
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diff
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|
214 if err := json.Unmarshal(*feature.Properties, &props); err != nil { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
215 badProperties++ |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
216 continue |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
217 } |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
218 |
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parents:
diff
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|
219 var catccl sql.NullInt64 |
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Waterway area import: Implemented.
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parents:
diff
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|
220 if props.Catccl != nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
221 if value, err := strconv.ParseInt(*props.Catccl, 10, 64); err == nil { |
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Waterway area import: Implemented.
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diff
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|
222 catccl = sql.NullInt64{Int64: value, Valid: true} |
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Waterway area import: Implemented.
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parents:
diff
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|
223 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
224 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
225 var dirimp sql.NullInt64 |
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Waterway area import: Implemented.
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parents:
diff
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|
226 if props.Dirimp != nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
227 if value, err := strconv.ParseInt(*props.Dirimp, 10, 64); err == nil { |
614c6c766691
Waterway area import: Implemented.
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diff
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|
228 dirimp = sql.NullInt64{Int64: value, Valid: true} |
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Waterway area import: Implemented.
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parents:
diff
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|
229 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
230 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
231 |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
232 switch feature.Geometry.Type { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
233 case "Polygon": |
1786
09349ca27dd7
Imports: Removed duplicated code path to store WKB polygons into database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1785
diff
changeset
|
234 var p polygonSlice |
1785
614c6c766691
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parents:
diff
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|
235 if err := json.Unmarshal(*feature.Geometry.Coordinates, &p); err != nil { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
236 return err |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
237 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
238 if _, err := insertStmt.ExecContext( |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
239 ctx, |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
240 p.asWKB(), |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
241 epsg, |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
242 catccl, |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
243 dirimp, |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
244 ); err != nil { |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
245 return err |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
246 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
247 features++ |
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248 default: |
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249 unsupported[feature.Geometry.Type]++ |
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250 } |
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251 } |
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252 return nil |
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253 }); err != nil { |
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254 feedback.Error("Downloading features failed: %v", err) |
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255 return nil, err |
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256 } |
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257 |
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258 if badProperties > 0 { |
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259 feedback.Warn("Bad properties: %d", badProperties) |
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Waterway area import: Implemented.
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260 } |
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Waterway area import: Implemented.
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261 |
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262 if missingProperties > 0 { |
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263 feedback.Warn("Missing properties: %d", missingProperties) |
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264 } |
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Waterway area import: Implemented.
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265 |
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266 if len(unsupported) != 0 { |
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267 feedback.Warn("Unsupported types found: %s", unsupported) |
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Waterway area import: Implemented.
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268 } |
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269 |
1828
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Waterway area/axis: Be more informative if features are bad.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1796
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270 if features == 0 { |
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271 err := errors.New("No features found") |
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272 feedback.Error("%v", err) |
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273 return nil, err |
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274 } |
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Waterway area/axis: Be more informative if features are bad.
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275 |
1785
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276 if err = tx.Commit(); err == nil { |
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277 feedback.Info("Storing %d features took %s", |
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278 features, time.Since(start)) |
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Waterway area import: Implemented.
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279 } |
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Waterway area import: Implemented.
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280 |
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281 return nil, err |
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282 } |