Mercurial > gemma
annotate pkg/imports/wa.go @ 3681:c9e1848a516a
Handle violation of responsibility areas graceful for BN import.
As many others this is an error, which should only affect the specific
bottleneck failing and not the whole import.
author | Sascha Wilde <wilde@intevation.de> |
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date | Tue, 18 Jun 2019 12:43:01 +0200 |
parents | 4acbee65275d |
children | 6c5c15b2fb64 |
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() [2][]string { |
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63 return [2][]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 |
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69 // StageDone is a NOP for waterway area imports. |
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70 func (waJobCreator) StageDone(context.Context, *sql.Tx, int64) error { |
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71 return nil |
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72 } |
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73 |
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74 // CleanUp for waterway area imports is a NOP. |
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75 func (*WaterwayArea) CleanUp() error { return nil } |
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76 |
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77 type waterwayAreaProperties struct { |
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78 Catccl *string `json:"ienc_catccl"` |
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79 Dirimp *string `json:"ienc_dirimp"` |
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80 } |
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81 |
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82 const ( |
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83 deleteWaterwayAreaSQL = ` |
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84 WITH resp AS ( |
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85 SELECT users.current_user_area_utm() AS a |
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86 ) |
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87 DELETE FROM waterway.waterway_area |
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88 WHERE pg_has_role('sys_admin', 'MEMBER') |
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89 OR ST_Covers((SELECT a FROM resp), |
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90 ST_Transform(area::geometry, (SELECT ST_SRID(a) FROM resp))) |
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91 ` |
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92 insertWaterwayAreaSQL = ` |
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93 WITH resp AS ( |
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94 SELECT users.current_user_area_utm() AS a |
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95 ) |
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96 INSERT INTO waterway.waterway_area (area, catccl, dirimp) |
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97 SELECT dmp.geom, $3, $4 |
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98 FROM ST_GeomFromWKB($1, $2::integer) AS new_area (new_area), |
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99 ST_Dump(ST_Transform(ST_CollectionExtract( |
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100 CASE WHEN pg_has_role('sys_admin', 'MEMBER') |
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101 THEN ST_MakeValid(ST_Transform(new_area, |
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102 best_utm(ST_Transform(new_area, 4326)))) |
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103 ELSE ST_Intersection((SELECT a FROM resp), |
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104 ST_MakeValid(ST_Transform(new_area, (SELECT ST_SRID(a) FROM resp)))) |
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105 END, |
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106 3), 4326)) AS dmp |
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107 RETURNING id |
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108 ` |
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109 ) |
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110 |
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111 // Do executes the actual waterway axis import. |
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112 func (wx *WaterwayArea) Do( |
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113 ctx context.Context, |
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114 importID int64, |
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115 conn *sql.Conn, |
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116 feedback Feedback, |
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117 ) (interface{}, error) { |
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118 |
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119 start := time.Now() |
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120 |
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121 feedback.Info("Import waterway area") |
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122 |
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123 feedback.Info("Loading capabilities from %s", wx.URL) |
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124 caps, err := wfs.GetCapabilities(wx.URL) |
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125 if err != nil { |
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126 feedback.Error("Loading capabilities failed: %v", err) |
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127 return nil, err |
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128 } |
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129 |
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130 ft := caps.FindFeatureType(wx.FeatureType) |
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131 if ft == nil { |
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132 return nil, fmt.Errorf("Unknown feature type '%s'", wx.FeatureType) |
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133 } |
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134 |
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135 feedback.Info("Found feature type '%s", wx.FeatureType) |
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136 |
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137 epsg, err := wfs.CRSToEPSG(ft.DefaultCRS) |
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138 if err != nil { |
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139 feedback.Error("Unsupported CRS name '%s'", ft.DefaultCRS) |
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140 return nil, err |
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141 } |
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142 |
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143 if wx.SortBy != "" { |
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144 feedback.Info("Features will be sorted by '%s'", wx.SortBy) |
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145 } |
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146 |
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147 dl, err := wfs.GetFeatures(caps, wx.FeatureType, wx.SortBy) |
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148 if err != nil { |
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149 feedback.Error("Cannot create GetFeature URLs. %v", err) |
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150 return nil, err |
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151 } |
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152 |
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153 tx, err := conn.BeginTx(ctx, nil) |
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154 if err != nil { |
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155 return nil, err |
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156 } |
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157 defer tx.Rollback() |
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158 |
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159 insertStmt, err := tx.PrepareContext(ctx, insertWaterwayAreaSQL) |
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160 if err != nil { |
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161 return nil, err |
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162 } |
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163 defer insertStmt.Close() |
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164 |
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165 // Delete the old features. |
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166 if _, err := tx.ExecContext(ctx, deleteWaterwayAreaSQL); err != nil { |
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167 return nil, err |
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|
168 } |
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169 |
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170 var ( |
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171 unsupported = stringCounter{} |
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172 missingProperties int |
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173 badProperties int |
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174 outside int |
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175 features int |
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176 ) |
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177 |
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178 if err := dl.Download(wx.User, wx.Password, func(url string, r io.Reader) error { |
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WFS imports: Write get GetFeature URLs into import log.
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179 feedback.Info("Get features from: '%s'", url) |
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180 rfc, err := wfs.ParseRawFeatureCollection(r) |
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181 if err != nil { |
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182 return fmt.Errorf("parsing GetFeature document failed: %v", err) |
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183 } |
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184 if rfc.CRS != nil { |
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185 crsName := rfc.CRS.Properties.Name |
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186 if epsg, err = wfs.CRSToEPSG(crsName); err != nil { |
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187 feedback.Error("Unsupported CRS: %d", crsName) |
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188 return err |
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|
189 } |
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|
190 } |
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|
191 |
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192 // No features -> ignore. |
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|
193 if rfc.Features == nil { |
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194 return nil |
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|
195 } |
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196 |
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197 feedback.Info("Using EPSG: %d", epsg) |
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198 |
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199 savepoint := Savepoint(ctx, tx, "feature") |
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200 |
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201 for _, feature := range rfc.Features { |
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202 if feature.Properties == nil || feature.Geometry.Coordinates == nil { |
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203 missingProperties++ |
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|
204 continue |
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|
205 } |
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|
206 |
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|
207 var props waterwayAreaProperties |
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|
208 |
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209 if err := json.Unmarshal(*feature.Properties, &props); err != nil { |
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|
210 badProperties++ |
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|
211 continue |
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|
212 } |
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|
213 |
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|
214 var catccl sql.NullInt64 |
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215 if props.Catccl != nil { |
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216 if value, err := strconv.ParseInt(*props.Catccl, 10, 64); err == nil { |
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217 catccl = sql.NullInt64{Int64: value, Valid: true} |
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|
218 } |
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diff
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|
219 } |
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|
220 var dirimp sql.NullInt64 |
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221 if props.Dirimp != nil { |
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222 if value, err := strconv.ParseInt(*props.Dirimp, 10, 64); err == nil { |
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223 dirimp = sql.NullInt64{Int64: value, Valid: true} |
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|
224 } |
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diff
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|
225 } |
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|
226 |
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|
227 switch feature.Geometry.Type { |
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diff
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|
228 case "Polygon": |
1786
09349ca27dd7
Imports: Removed duplicated code path to store WKB polygons into database.
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1785
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|
229 var p polygonSlice |
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230 if err := json.Unmarshal(*feature.Geometry.Coordinates, &p); err != nil { |
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|
231 return err |
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|
232 } |
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|
233 var waid int64 |
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Fix logging in area import
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|
234 err := savepoint(func() error { |
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|
235 err := insertStmt.QueryRowContext( |
2758
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Simplified savepoint handling.
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|
236 ctx, |
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|
237 p.asWKB(), |
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|
238 epsg, |
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|
239 catccl, |
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|
240 dirimp, |
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Fix logging in area import
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parents:
2912
diff
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|
241 ).Scan(&waid) |
2659
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2649
diff
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|
242 return err |
2938
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Fix logging in area import
Tom Gottfried <tom@intevation.de>
parents:
2912
diff
changeset
|
243 }) |
ecb1e34157a3
Fix logging in area import
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parents:
2912
diff
changeset
|
244 switch { |
ecb1e34157a3
Fix logging in area import
Tom Gottfried <tom@intevation.de>
parents:
2912
diff
changeset
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245 case err == sql.ErrNoRows: |
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246 outside++ |
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247 // ignore -> filtered by responsibility_areas |
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248 case err != nil: |
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249 feedback.Warn(handleError(err).Error()) |
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250 default: |
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251 features++ |
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252 } |
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253 default: |
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254 unsupported[feature.Geometry.Type]++ |
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255 } |
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256 } |
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257 return nil |
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258 }); err != nil { |
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259 return nil, err |
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260 } |
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261 |
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262 if badProperties > 0 { |
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263 feedback.Warn("Bad properties: %d", badProperties) |
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264 } |
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265 |
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266 if missingProperties > 0 { |
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267 feedback.Warn("Missing properties: %d", missingProperties) |
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268 } |
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269 |
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270 if len(unsupported) != 0 { |
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271 feedback.Warn("Unsupported types found: %s", unsupported) |
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272 } |
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273 |
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274 if outside > 0 { |
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275 feedback.Info("Features outside responsibility area: %d", outside) |
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276 } |
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277 |
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278 if features == 0 { |
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279 err := errors.New("No features found") |
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280 feedback.Error("%v", err) |
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281 return nil, err |
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282 } |
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283 |
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284 if err = tx.Commit(); err == nil { |
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285 feedback.Info("Storing %d features took %s", |
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286 features, time.Since(start)) |
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287 } |
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288 |
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289 return nil, err |
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290 } |