Mercurial > gemma

annotate cmd/wfs/main.go @ 2622:02505fcff63c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
WFS downloads: Accept 'geojson' as mime type, too.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 13 Mar 2019 15:39:12 +0100
parents 92da44ba610c
children 3956de9b6b32
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1596
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 // This is Free Software under GNU Affero General Public License v >= 3.0
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2 // without warranty, see README.md and license for details.
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 //
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4 // SPDX-License-Identifier: AGPL-3.0-or-later
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 // License-Filename: LICENSES/AGPL-3.0.txt
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 //
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 // Copyright (C) 2018 by via donau
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 // – Österreichische Wasserstraßen-Gesellschaft mbH
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 // Software engineering by Intevation GmbH
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 //
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 // Author(s):
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 package main
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 import (
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 "flag"
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18 "log"
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 "gemma.intevation.de/gemma/pkg/wfs"
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 )
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
23 func check(err error) {
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
24 if err != nil {
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
25 log.Fatalf("error: %v\n", err)
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
26 }
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
27 }
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
28
1596
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 func main() {
1608
427f9010b4a9 WFS download: Started with GET downloader (paged and unpaged).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1602
diff changeset
30 var (
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
31 dumpCaps = flag.Bool("dump-caps", false, "Dump capabilities document")
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
32 dumpFeatures = flag.Bool("dump-features", false, "Dump features")
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
33 featureType = flag.String("features", "", "feature to get")
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
34 sortBy = flag.String("sortby", "", "Sort features by this property")
1608
427f9010b4a9 WFS download: Started with GET downloader (paged and unpaged).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1602
diff changeset
35 )
1596
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 flag.Parse()
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38 for _, arg := range flag.Args() {
1608
427f9010b4a9 WFS download: Started with GET downloader (paged and unpaged).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1602
diff changeset
39 caps, err := wfs.GetCapabilities(arg)
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
40 check(err)
1608
427f9010b4a9 WFS download: Started with GET downloader (paged and unpaged).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1602
diff changeset
41 if *dumpCaps {
427f9010b4a9 WFS download: Started with GET downloader (paged and unpaged).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1602
diff changeset
42 dump(caps)
1602
e80e35b26f17 WFS Capabilities parser: Wrote a custom xml.Unmarshaler to extract the namespaces of FeatureTypes, too. They are needed in GetFeature requests.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1600
diff changeset
43 }
1599
5e16d1fbe91f WFS Capabilities parser: Parse constraints, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1596
diff changeset
44
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
45 if *featureType == "" {
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
46 continue
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
47 }
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
48
1626
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
49 feature := caps.FindFeatureType(*featureType)
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
50 if feature == nil {
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
51 log.Fatalf("Unknown feature type '%s'\n", *featureType)
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
52 }
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
53
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
54 urls, err := wfs.GetFeaturesGET(
2622
02505fcff63c WFS downloads: Accept 'geojson' as mime type, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1626
diff changeset
55 caps, *featureType, wfs.FormatGeoJSON, *sortBy)
1619
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
56 check(err)
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
57
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
58 log.Printf("urls: %v\n", urls)
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
59 if *dumpFeatures {
3093bab05c81 WFS downloader: Dump features to stdout for testing purposes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1616
diff changeset
60 check(dumpURLs(urls))
1600
658c1ebc1707 WFS Capabilities parser: Parse FeatureTypeList, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1599
diff changeset
61 }
1626
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
62
92da44ba610c WFS downloader: Parse into raw feature collections.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1619
diff changeset
63 parseFeatures(urls, feature.DefaultCRS)
1596
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
64 }
74413d52c439 Started with WFS Capabilities parser.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65 }