Mercurial > gemma
annotate pkg/controllers/geostyling.go @ 4550:aa2d0006e742 iso-areas
Write iso lines between classes to SVG for debugging.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 30 Sep 2019 16:34:55 +0200 |
parents | 22148eb0f986 |
children | 4a9a1e323e11 |
rev | line source |
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1017
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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 controllers |
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15 |
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16 import ( |
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17 "bytes" |
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18 "fmt" |
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19 "io" |
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20 "log" |
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21 "net/http" |
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22 |
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23 "github.com/gorilla/mux" |
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24 |
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25 "gemma.intevation.de/gemma/pkg/geoserver" |
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26 "gemma.intevation.de/gemma/pkg/models" |
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27 ) |
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28 |
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29 const ( |
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30 maxStyleSize = 5 * 1024 * 1024 |
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31 styleName = "style" |
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32 ) |
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33 |
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34 func extractStyle(req *http.Request) (string, error) { |
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35 |
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36 f, _, err := req.FormFile(styleName) |
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37 if err != nil { |
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38 return "", err |
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39 } |
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40 defer f.Close() |
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41 |
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42 var buf bytes.Buffer |
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43 |
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44 if _, err := io.Copy(&buf, io.LimitReader(f, maxStyleSize)); err != nil { |
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45 return "", err |
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46 } |
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47 return buf.String(), nil |
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48 } |
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49 |
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50 func supportedWMSFeature(name string) bool { |
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51 return len(models.InternalServices.Filter( |
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52 models.IntAnd( |
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53 models.IntWMS, |
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54 models.IntByName(name)))) > 0 |
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55 } |
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56 |
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57 func uploadStyle(rw http.ResponseWriter, req *http.Request) { |
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58 |
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59 feature := mux.Vars(req)["feature"] |
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60 |
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61 // only allow internal WMS features |
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62 if !supportedWMSFeature(feature) { |
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63 http.Error(rw, |
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64 fmt.Sprintf("WMS feature %s is not found.", feature), |
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65 http.StatusNotFound) |
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66 return |
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67 } |
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68 |
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69 style, err := extractStyle(req) |
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70 if err != nil { |
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71 log.Printf("error: %v\n", err) |
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72 http.Error(rw, "error: "+err.Error(), http.StatusBadRequest) |
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73 return |
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74 } |
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75 |
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76 log.Printf("info: uploaded file length: %d\n", len(style)) |
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77 |
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78 if err := models.UpdateInternalStyle(req, feature, style); err != nil { |
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79 log.Printf("error: %v\n", err) |
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80 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError) |
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81 return |
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82 } |
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83 |
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84 geoserver.ReconfigureStyle(feature) |
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85 |
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86 // Nothing to return |
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87 rw.WriteHeader(http.StatusNoContent) |
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88 } |