gvsig-projects-pool / org.gvsig.topology / trunk / org.gvsig.topology / org.gvsig.topology.lib / org.gvsig.topology.lib.api / src / main / java / org / gvsig / topology / lib / spi / RuleResourceLoaderUtils.java @ 2067
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1 | 688 | jjdelcerro | /*
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2 | * To change this license header, choose License Headers in Project Properties.
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3 | * To change this template file, choose Tools | Templates
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4 | * and open the template in the editor.
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5 | */
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6 | package org.gvsig.topology.lib.spi; |
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7 | |||
8 | 712 | jjdelcerro | import java.io.File; |
9 | 688 | jjdelcerro | import java.io.InputStream; |
10 | 712 | jjdelcerro | import java.net.MalformedURLException; |
11 | 688 | jjdelcerro | import java.net.URL; |
12 | import java.util.List; |
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13 | import java.util.Locale; |
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14 | 886 | jjdelcerro | import org.apache.commons.io.FilenameUtils; |
15 | 688 | jjdelcerro | import org.apache.commons.io.IOUtils; |
16 | import org.apache.commons.lang3.StringUtils; |
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17 | import org.json.JSONArray; |
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18 | import org.json.JSONObject; |
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19 | import org.slf4j.Logger; |
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20 | import org.slf4j.LoggerFactory; |
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21 | |||
22 | /**
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23 | *
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24 | * @author jjdelcerro
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25 | */
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26 | @SuppressWarnings("UseSpecificCatch") |
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27 | public class RuleResourceLoaderUtils { |
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28 | |||
29 | private static Logger LOGGER = LoggerFactory.getLogger(RuleResourceLoaderUtils.class); |
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30 | |||
31 | public static URL getRuleURL(String idRule) { |
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32 | String lang = Locale.getDefault().getLanguage(); |
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33 | URL url = RuleResourceLoaderUtils.class.getResource("/org/gvsig/topology/rules/"+lang+"/"+idRule+".json"); |
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34 | if( url == null ) { |
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35 | url = RuleResourceLoaderUtils.class.getResource("/org/gvsig/topology/rules/en/"+idRule+".json"); |
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36 | if( url == null ) { |
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37 | return null; |
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38 | } |
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39 | } |
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40 | return url;
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41 | } |
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42 | |||
43 | 712 | jjdelcerro | public static JSONObject getRule(URL url) { |
44 | 688 | jjdelcerro | if( url == null ) { |
45 | return null; |
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46 | } |
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47 | InputStream is = null; |
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48 | JSONObject json; |
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49 | try {
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50 | is = url.openStream(); |
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51 | List<String> lines = IOUtils.readLines(is); |
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52 | json = new JSONObject(StringUtils.join(lines, "\n")); |
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53 | } catch (Exception ex) { |
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54 | LOGGER.warn("Can't load resource from json file '"+url.toString()+"'.", ex); |
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55 | return null; |
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56 | } finally {
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57 | IOUtils.closeQuietly(is); |
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58 | } |
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59 | return json;
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60 | } |
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61 | |||
62 | 712 | jjdelcerro | public static JSONObject getRule(String idRuleOrPathname) { |
63 | if( idRuleOrPathname==null ) { |
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64 | return null; |
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65 | } |
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66 | if( idRuleOrPathname.endsWith(".json") ) { |
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67 | // Asumimos que es una ruta al fichero json.
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68 | return getRule(new File(idRuleOrPathname)); |
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69 | } |
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70 | // Asumimos que es un ID de regla
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71 | URL url = getRuleURL(idRuleOrPathname);
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72 | if( url == null ) { |
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73 | return null; |
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74 | } |
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75 | return getRule(url);
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76 | } |
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77 | |||
78 | public static JSONObject getRule(File jsonfile) { |
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79 | if( jsonfile == null || !jsonfile.exists() ) { |
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80 | return null; |
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81 | } |
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82 | try {
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83 | return getRule(jsonfile.toURI().toURL());
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84 | } catch (MalformedURLException ex) { |
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85 | LOGGER.warn("Can't load resource from json file '"+jsonfile.toString()+"'.", ex); |
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86 | return null; |
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87 | } |
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88 | } |
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89 | |||
90 | 886 | jjdelcerro | public static String getDescription(URL jsonUrl, JSONObject json) { |
91 | 688 | jjdelcerro | String description = null; |
92 | |||
93 | if( json.has("description") ) { |
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94 | Object x = json.get("description"); |
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95 | if( x instanceof String ) { |
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96 | description = (String) x;
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97 | } else if( x instanceof JSONArray ) { |
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98 | StringBuilder builder = new StringBuilder(); |
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99 | for (int i = 0; i < ((JSONArray)x).length(); i++) { |
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100 | if( i>0 ) { |
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101 | builder.append(" ");
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102 | } |
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103 | builder.append(((JSONArray)x).getString(i)); |
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104 | } |
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105 | description = builder.toString(); |
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106 | } else {
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107 | description = x.toString(); |
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108 | } |
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109 | if( description.contains("@@@") ) { |
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110 | description = StringUtils.replace( |
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111 | description, |
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112 | "@@@",
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113 | 886 | jjdelcerro | FilenameUtils.removeExtension(jsonUrl.toString()) |
114 | 688 | jjdelcerro | ); |
115 | } |
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116 | } |
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117 | return description;
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118 | } |
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119 | |||
120 | public static JSONObject getAction(JSONObject rule, String idAction) { |
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121 | if( !rule.has("actions") ) { |
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122 | return null; |
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123 | } |
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124 | if( !rule.getJSONObject("actions").has(idAction) ) { |
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125 | return null; |
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126 | } |
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127 | JSONObject action = rule.getJSONObject("actions").getJSONObject(idAction);
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128 | return action;
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129 | } |
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130 | |||
131 | } |