Mercurial > gemma
annotate pkg/imports/wa.go @ 2533:de4dc3d16647
AGM import: Check if gauge exists for a meassurement.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 07 Mar 2019 11:57:05 +0100 |
parents | 7c83b5277c1c |
children | 02505fcff63c |
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/wfs" |
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27 ) |
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28 |
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29 // WaterwayArea is an import job to import |
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30 // the waterway area in form of polygon geometries |
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31 // and attribute data from a WFS service. |
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32 type WaterwayArea struct { |
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33 // URL the GetCapabilities URL of the WFS service. |
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34 URL string `json:"url"` |
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35 // FeatureType selects the feature type of the WFS service. |
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36 FeatureType string `json:"feature-type"` |
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37 // SortBy works around misconfigured services to |
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38 // establish a sort order to get the features. |
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39 SortBy string `json:"sort-by"` |
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40 } |
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41 |
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42 // WAJobKind is the import queue type identifier. |
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43 const WAJobKind JobKind = "wa" |
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44 |
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45 type waJobCreator struct{} |
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46 |
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47 func init() { |
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48 RegisterJobCreator(WAJobKind, waJobCreator{}) |
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49 } |
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50 |
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51 func (waJobCreator) Description() string { return "waterway area" } |
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52 |
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53 func (waJobCreator) AutoAccept() bool { return true } |
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54 |
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55 func (waJobCreator) Create() Job { return new(WaterwayArea) } |
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56 |
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57 func (waJobCreator) Depends() []string { |
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58 return []string{ |
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59 "waterway_area", |
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60 } |
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61 } |
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62 |
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63 // StageDone is a NOP for waterway area imports. |
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64 func (waJobCreator) StageDone(context.Context, *sql.Tx, int64) error { |
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65 return nil |
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66 } |
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67 |
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68 // CleanUp for waterway area imports is a NOP. |
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69 func (*WaterwayArea) CleanUp() error { return nil } |
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70 |
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71 type waterwayAreaProperties struct { |
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72 Catccl *string `json:"ienc_catccl"` |
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73 Dirimp *string `json:"ienc_dirimp"` |
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74 } |
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75 |
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76 const ( |
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77 deleteWaterwayAreaSQL = ` |
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78 WITH resp AS ( |
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79 SELECT best_utm(area::geometry) AS t, |
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80 ST_Transform(area::geometry, best_utm(area::geometry)) AS a |
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81 FROM users.responsibility_areas |
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82 WHERE country = users.current_user_country() |
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83 ) |
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84 DELETE FROM waterway.waterway_area |
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85 WHERE ST_Covers( |
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86 (SELECT a FROM resp), |
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87 ST_Transform(area::geometry, (SELECT t FROM resp))) |
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88 ` |
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89 insertWaterwayAreaSQL = ` |
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90 WITH resp AS ( |
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91 SELECT best_utm(area::geometry) AS t, |
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92 ST_Transform(area::geometry, best_utm(area::geometry)) AS a |
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93 FROM users.responsibility_areas |
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94 WHERE country = users.current_user_country() |
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95 ) |
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96 INSERT INTO waterway.waterway_area (area, catccl, dirimp) |
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97 SELECT ST_Transform(clipped.geom, 4326)::geography, $3, $4 FROM ( |
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98 SELECT (ST_Dump( |
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99 ST_Intersection( |
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100 (SELECT ST_Buffer(a, 0.0001) FROM resp), |
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101 ST_CollectionExtract(ST_MakeValid(ST_Transform( |
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102 ST_GeomFromWKB($1, $2::integer), |
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103 (SELECT t FROM resp) |
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104 )),3) |
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105 ) |
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106 )).geom AS geom |
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107 ) AS clipped |
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108 WHERE clipped.geom IS NOT NULL |
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109 ` |
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110 ) |
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111 |
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112 // Do executes the actual waterway axis import. |
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113 func (wx *WaterwayArea) Do( |
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114 ctx context.Context, |
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115 importID int64, |
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116 conn *sql.Conn, |
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117 feedback Feedback, |
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118 ) (interface{}, error) { |
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119 |
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120 start := time.Now() |
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121 |
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122 feedback.Info("Import waterway area") |
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123 |
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124 feedback.Info("Loading capabilities from %s", wx.URL) |
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125 caps, err := wfs.GetCapabilities(wx.URL) |
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126 if err != nil { |
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127 feedback.Error("Loading capabilities failed: %v", err) |
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128 return nil, err |
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129 } |
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130 |
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131 ft := caps.FindFeatureType(wx.FeatureType) |
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132 if ft == nil { |
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133 return nil, fmt.Errorf("Unknown feature type '%s'", wx.FeatureType) |
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134 } |
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135 |
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136 feedback.Info("Found feature type '%s", wx.FeatureType) |
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137 |
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138 epsg, err := wfs.CRSToEPSG(ft.DefaultCRS) |
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Waterway area import: Implemented.
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139 if err != nil { |
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140 feedback.Error("Unsupported CRS name '%s'", ft.DefaultCRS) |
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141 return nil, err |
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142 } |
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143 |
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144 if wx.SortBy != "" { |
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145 feedback.Info("Features will be sorted by '%s'", wx.SortBy) |
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146 } |
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147 |
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148 urls, err := wfs.GetFeaturesGET( |
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149 caps, wx.FeatureType, "application/json", wx.SortBy) |
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150 if err != nil { |
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151 feedback.Error("Cannot create GetFeature URLs. %v", err) |
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152 return nil, err |
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153 } |
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154 |
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155 tx, err := conn.BeginTx(ctx, nil) |
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156 if err != nil { |
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157 return nil, err |
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|
158 } |
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159 defer tx.Rollback() |
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160 |
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161 insertStmt, err := tx.PrepareContext(ctx, insertWaterwayAreaSQL) |
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162 if err != nil { |
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163 return nil, err |
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|
164 } |
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165 defer insertStmt.Close() |
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166 |
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167 // Delete the old features. |
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168 if _, err := tx.ExecContext(ctx, deleteWaterwayAreaSQL); err != nil { |
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169 return nil, err |
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|
170 } |
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|
171 |
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|
172 var ( |
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173 unsupported = stringCounter{} |
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diff
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|
174 missingProperties int |
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|
175 badProperties int |
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diff
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|
176 features int |
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diff
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|
177 ) |
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|
178 |
2106
2b72f5e005aa
WFS imports: Write get GetFeature URLs into import log.
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parents:
1899
diff
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|
179 if err := wfs.DownloadURLs(urls, func(url string, r io.Reader) error { |
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WFS imports: Write get GetFeature URLs into import log.
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parents:
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180 feedback.Info("Get features from: '%s'", url) |
1785
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181 rfc, err := wfs.ParseRawFeatureCollection(r) |
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Waterway area import: Implemented.
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diff
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|
182 if err != nil { |
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diff
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183 return fmt.Errorf("parsing GetFeature document failed: %v", err) |
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Waterway area import: Implemented.
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diff
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|
184 } |
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diff
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|
185 if rfc.CRS != nil { |
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|
186 crsName := rfc.CRS.Properties.Name |
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diff
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187 if epsg, err = wfs.CRSToEPSG(crsName); err != nil { |
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diff
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188 feedback.Error("Unsupported CRS: %d", crsName) |
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diff
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|
189 return err |
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parents:
diff
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|
190 } |
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Waterway area import: Implemented.
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parents:
diff
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|
191 } |
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parents:
diff
changeset
|
192 |
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parents:
diff
changeset
|
193 // No features -> ignore. |
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parents:
diff
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|
194 if rfc.Features == nil { |
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diff
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|
195 return nil |
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parents:
diff
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|
196 } |
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diff
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|
197 |
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|
198 feedback.Info("Using EPSG: %d", epsg) |
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parents:
diff
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|
199 |
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diff
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|
200 for _, feature := range rfc.Features { |
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|
201 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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|
202 missingProperties++ |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
203 continue |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
204 } |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
205 |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
206 var props waterwayAreaProperties |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
207 |
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parents:
diff
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|
208 if err := json.Unmarshal(*feature.Properties, &props); err != nil { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
209 badProperties++ |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
210 continue |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
211 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
212 |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
213 var catccl sql.NullInt64 |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
214 if props.Catccl != nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
215 if value, err := strconv.ParseInt(*props.Catccl, 10, 64); err == nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
216 catccl = sql.NullInt64{Int64: value, Valid: true} |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
217 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
218 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
219 var dirimp sql.NullInt64 |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
220 if props.Dirimp != nil { |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
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|
221 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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|
222 dirimp = sql.NullInt64{Int64: value, Valid: true} |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
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
changeset
|
225 |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
226 switch feature.Geometry.Type { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
227 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
|
228 var p polygonSlice |
1785
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parents:
diff
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229 if err := json.Unmarshal(*feature.Geometry.Coordinates, &p); err != nil { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
230 return err |
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 if _, err := insertStmt.ExecContext( |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
233 ctx, |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
234 p.asWKB(), |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
235 epsg, |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
236 catccl, |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
237 dirimp, |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
238 ); err != nil { |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
239 return err |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
240 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
241 features++ |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
242 default: |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
243 unsupported[feature.Geometry.Type]++ |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
244 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
changeset
|
245 } |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
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246 return nil |
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247 }); err != nil { |
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248 return nil, err |
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249 } |
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250 |
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251 if badProperties > 0 { |
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252 feedback.Warn("Bad properties: %d", badProperties) |
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253 } |
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254 |
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255 if missingProperties > 0 { |
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256 feedback.Warn("Missing properties: %d", missingProperties) |
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257 } |
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Waterway area import: Implemented.
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258 |
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259 if len(unsupported) != 0 { |
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260 feedback.Warn("Unsupported types found: %s", unsupported) |
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261 } |
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Waterway area import: Implemented.
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262 |
1828
1ecfcf46e4da
Waterway area/axis: Be more informative if features are bad.
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parents:
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263 if features == 0 { |
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264 err := errors.New("No features found") |
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265 feedback.Error("%v", err) |
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266 return nil, err |
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Waterway area/axis: Be more informative if features are bad.
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parents:
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diff
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|
267 } |
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Waterway area/axis: Be more informative if features are bad.
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parents:
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268 |
1785
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269 if err = tx.Commit(); err == nil { |
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270 feedback.Info("Storing %d features took %s", |
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271 features, time.Since(start)) |
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Waterway area import: Implemented.
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272 } |
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Waterway area import: Implemented.
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parents:
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|
273 |
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274 return nil, err |
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275 } |