Mercurial > gemma
annotate pkg/imports/wa.go @ 2912:93fa55bce126
Add utility function to get users area of responsibility
author | Tom Gottfried <tom@intevation.de> |
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date | Tue, 02 Apr 2019 19:25:17 +0200 |
parents | 8a8a929182f9 |
children | ecb1e34157a3 |
rev | line source |
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1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
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2 // without warranty, see README.md and license for details. |
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3 // |
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4 // SPDX-License-Identifier: AGPL-3.0-or-later |
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5 // License-Filename: LICENSES/AGPL-3.0.txt |
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6 // |
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7 // Copyright (C) 2018, 2019 by via donau |
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
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9 // Software engineering by Intevation GmbH |
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10 // |
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11 // Author(s): |
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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13 // * Tom Gottfried <tom.gottfried@intevation.de> |
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14 |
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15 package imports |
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16 |
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17 import ( |
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18 "context" |
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19 "database/sql" |
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20 "encoding/json" |
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21 "errors" |
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22 "fmt" |
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23 "io" |
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24 "strconv" |
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25 "time" |
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26 |
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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 // User is an optional username for Basic Auth. |
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42 User string `json:"user,omitempty"` |
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43 // Password is an optional password for Basic Auth. |
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44 Password string `json:"password,omitempty"` |
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45 } |
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46 |
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47 // WAJobKind is the import queue type identifier. |
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48 const WAJobKind JobKind = "wa" |
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49 |
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50 type waJobCreator struct{} |
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51 |
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52 func init() { |
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53 RegisterJobCreator(WAJobKind, waJobCreator{}) |
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54 } |
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55 |
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56 func (waJobCreator) Description() string { return "waterway area" } |
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57 |
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58 func (waJobCreator) AutoAccept() bool { return true } |
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59 |
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60 func (waJobCreator) Create() Job { return new(WaterwayArea) } |
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61 |
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62 func (waJobCreator) Depends() []string { |
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63 return []string{ |
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64 "waterway_area", |
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65 } |
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66 } |
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67 |
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68 // StageDone is a NOP for waterway area imports. |
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69 func (waJobCreator) StageDone(context.Context, *sql.Tx, int64) error { |
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70 return nil |
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71 } |
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72 |
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73 // CleanUp for waterway area imports is a NOP. |
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74 func (*WaterwayArea) CleanUp() error { return nil } |
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75 |
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76 type waterwayAreaProperties struct { |
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77 Catccl *string `json:"ienc_catccl"` |
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78 Dirimp *string `json:"ienc_dirimp"` |
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79 } |
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80 |
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81 const ( |
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82 deleteWaterwayAreaSQL = ` |
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83 WITH resp AS ( |
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84 SELECT users.current_user_area_utm() AS a |
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85 ) |
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86 DELETE FROM waterway.waterway_area |
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87 WHERE pg_has_role('sys_admin', 'MEMBER') |
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88 OR ST_Covers((SELECT a FROM resp), |
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89 ST_Transform(area::geometry, (SELECT ST_SRID(a) FROM resp))) |
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90 ` |
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91 insertWaterwayAreaSQL = ` |
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92 WITH resp AS ( |
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93 SELECT users.current_user_area_utm() AS a |
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94 ) |
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95 INSERT INTO waterway.waterway_area (area, catccl, dirimp) |
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96 SELECT dmp.geom, $3, $4 |
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97 FROM ST_GeomFromWKB($1, $2::integer) AS new_area (new_area), |
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98 ST_Dump(ST_Transform(ST_CollectionExtract( |
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99 CASE WHEN pg_has_role('sys_admin', 'MEMBER') |
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100 THEN ST_MakeValid(ST_Transform(new_area, |
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101 best_utm(ST_Transform(new_area, 4326)))) |
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102 ELSE ST_Intersection((SELECT a FROM resp), |
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103 ST_MakeValid(ST_Transform(new_area, (SELECT ST_SRID(a) FROM resp)))) |
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104 END, |
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105 3), 4326)) AS dmp |
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106 ` |
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107 ) |
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108 |
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109 // Do executes the actual waterway axis import. |
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110 func (wx *WaterwayArea) 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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116 |
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117 start := time.Now() |
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118 |
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119 feedback.Info("Import waterway area") |
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120 |
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121 feedback.Info("Loading capabilities from %s", wx.URL) |
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122 caps, err := wfs.GetCapabilities(wx.URL) |
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123 if err != nil { |
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124 feedback.Error("Loading capabilities failed: %v", err) |
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125 return nil, err |
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126 } |
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127 |
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128 ft := caps.FindFeatureType(wx.FeatureType) |
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129 if ft == nil { |
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130 return nil, fmt.Errorf("Unknown feature type '%s'", wx.FeatureType) |
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131 } |
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132 |
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133 feedback.Info("Found feature type '%s", wx.FeatureType) |
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134 |
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135 epsg, err := wfs.CRSToEPSG(ft.DefaultCRS) |
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136 if err != nil { |
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137 feedback.Error("Unsupported CRS name '%s'", ft.DefaultCRS) |
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138 return nil, err |
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139 } |
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140 |
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141 if wx.SortBy != "" { |
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142 feedback.Info("Features will be sorted by '%s'", wx.SortBy) |
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143 } |
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144 |
2721
56c8ef515d93
WFS downloader: Use new GML/GeoJSON factory function in gemma.
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145 dl, err := wfs.GetFeatures(caps, wx.FeatureType, wx.SortBy) |
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146 if err != nil { |
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147 feedback.Error("Cannot create GetFeature URLs. %v", err) |
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148 return nil, err |
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149 } |
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150 |
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151 tx, err := conn.BeginTx(ctx, nil) |
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152 if err != nil { |
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153 return nil, err |
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154 } |
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155 defer tx.Rollback() |
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156 |
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157 insertStmt, err := tx.PrepareContext(ctx, insertWaterwayAreaSQL) |
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158 if err != nil { |
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159 return nil, err |
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160 } |
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161 defer insertStmt.Close() |
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|
162 |
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163 // Delete the old features. |
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164 if _, err := tx.ExecContext(ctx, deleteWaterwayAreaSQL); err != nil { |
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165 return nil, err |
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|
166 } |
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167 |
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168 var ( |
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169 unsupported = stringCounter{} |
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170 missingProperties int |
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|
171 badProperties int |
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|
172 features int |
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|
173 ) |
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174 |
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7cb027be277d
WFS downloader: Really use username and password from parameters.
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175 if err := dl.Download(wx.User, wx.Password, func(url string, r io.Reader) error { |
2106
2b72f5e005aa
WFS imports: Write get GetFeature URLs into import log.
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diff
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|
176 feedback.Info("Get features from: '%s'", url) |
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177 rfc, err := wfs.ParseRawFeatureCollection(r) |
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178 if err != nil { |
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179 return fmt.Errorf("parsing GetFeature document failed: %v", err) |
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|
180 } |
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181 if rfc.CRS != nil { |
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182 crsName := rfc.CRS.Properties.Name |
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183 if epsg, err = wfs.CRSToEPSG(crsName); err != nil { |
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184 feedback.Error("Unsupported CRS: %d", crsName) |
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diff
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|
185 return err |
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diff
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|
186 } |
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diff
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|
187 } |
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|
188 |
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diff
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|
189 // No features -> ignore. |
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diff
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|
190 if rfc.Features == nil { |
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diff
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|
191 return nil |
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diff
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|
192 } |
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|
193 |
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194 feedback.Info("Using EPSG: %d", epsg) |
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|
195 |
2758
a996f2ca9fa5
Simplified savepoint handling.
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2729
diff
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|
196 savepoint := Savepoint(ctx, tx, "feature") |
2659
00b0a7b2225a
Waterway area import: do not fail if INSERT of one item fails
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parents:
2649
diff
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|
197 |
1785
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198 for _, feature := range rfc.Features { |
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|
199 if feature.Properties == nil || feature.Geometry.Coordinates == nil { |
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|
200 missingProperties++ |
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diff
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|
201 continue |
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parents:
diff
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|
202 } |
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parents:
diff
changeset
|
203 |
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diff
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|
204 var props waterwayAreaProperties |
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parents:
diff
changeset
|
205 |
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diff
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|
206 if err := json.Unmarshal(*feature.Properties, &props); err != nil { |
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Waterway area import: Implemented.
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parents:
diff
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|
207 badProperties++ |
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Waterway area import: Implemented.
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parents:
diff
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|
208 continue |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
209 } |
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Waterway area import: Implemented.
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parents:
diff
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|
210 |
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parents:
diff
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|
211 var catccl sql.NullInt64 |
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Waterway area import: Implemented.
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diff
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|
212 if props.Catccl != nil { |
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parents:
diff
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|
213 if value, err := strconv.ParseInt(*props.Catccl, 10, 64); err == nil { |
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diff
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|
214 catccl = sql.NullInt64{Int64: value, Valid: true} |
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parents:
diff
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|
215 } |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
216 } |
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parents:
diff
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|
217 var dirimp sql.NullInt64 |
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parents:
diff
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|
218 if props.Dirimp != nil { |
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parents:
diff
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|
219 if value, err := strconv.ParseInt(*props.Dirimp, 10, 64); err == nil { |
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Waterway area import: Implemented.
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diff
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|
220 dirimp = sql.NullInt64{Int64: value, Valid: true} |
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parents:
diff
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|
221 } |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
changeset
|
222 } |
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Waterway area import: Implemented.
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parents:
diff
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|
223 |
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parents:
diff
changeset
|
224 switch feature.Geometry.Type { |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
225 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
|
226 var p polygonSlice |
1785
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diff
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|
227 if err := json.Unmarshal(*feature.Geometry.Coordinates, &p); err != nil { |
614c6c766691
Waterway area import: Implemented.
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parents:
diff
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|
228 return err |
614c6c766691
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parents:
diff
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|
229 } |
2758
a996f2ca9fa5
Simplified savepoint handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2729
diff
changeset
|
230 if err := savepoint(func() error { |
a996f2ca9fa5
Simplified savepoint handling.
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parents:
2729
diff
changeset
|
231 _, err := insertStmt.ExecContext( |
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Simplified savepoint handling.
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parents:
2729
diff
changeset
|
232 ctx, |
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Simplified savepoint handling.
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parents:
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diff
changeset
|
233 p.asWKB(), |
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Simplified savepoint handling.
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parents:
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diff
changeset
|
234 epsg, |
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Simplified savepoint handling.
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diff
changeset
|
235 catccl, |
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Simplified savepoint handling.
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parents:
2729
diff
changeset
|
236 dirimp, |
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Simplified savepoint handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2729
diff
changeset
|
237 ) |
2659
00b0a7b2225a
Waterway area import: do not fail if INSERT of one item fails
Tom Gottfried <tom@intevation.de>
parents:
2649
diff
changeset
|
238 return err |
2758
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Simplified savepoint handling.
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parents:
2729
diff
changeset
|
239 }); err != nil { |
2659
00b0a7b2225a
Waterway area import: do not fail if INSERT of one item fails
Tom Gottfried <tom@intevation.de>
parents:
2649
diff
changeset
|
240 feedback.Warn(handleError(err).Error()) |
00b0a7b2225a
Waterway area import: do not fail if INSERT of one item fails
Tom Gottfried <tom@intevation.de>
parents:
2649
diff
changeset
|
241 } else { |
00b0a7b2225a
Waterway area import: do not fail if INSERT of one item fails
Tom Gottfried <tom@intevation.de>
parents:
2649
diff
changeset
|
242 features++ |
1785
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Waterway area import: Implemented.
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parents:
diff
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|
243 } |
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Waterway area import: Implemented.
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parents:
diff
changeset
|
244 default: |
614c6c766691
Waterway area import: Implemented.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff
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245 unsupported[feature.Geometry.Type]++ |
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246 } |
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247 } |
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248 return nil |
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249 }); err != nil { |
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250 return nil, err |
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251 } |
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252 |
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253 if badProperties > 0 { |
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254 feedback.Warn("Bad properties: %d", badProperties) |
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255 } |
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256 |
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257 if missingProperties > 0 { |
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258 feedback.Warn("Missing properties: %d", missingProperties) |
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259 } |
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260 |
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261 if len(unsupported) != 0 { |
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262 feedback.Warn("Unsupported types found: %s", unsupported) |
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263 } |
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264 |
1828
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Waterway area/axis: Be more informative if features are bad.
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265 if features == 0 { |
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266 err := errors.New("No features found") |
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267 feedback.Error("%v", err) |
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268 return nil, err |
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269 } |
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270 |
1785
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271 if err = tx.Commit(); err == nil { |
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272 feedback.Info("Storing %d features took %s", |
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273 features, time.Since(start)) |
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274 } |
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275 |
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276 return nil, err |
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277 } |