Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java @ 442:52e031261eaa

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Create a new 'gnv' section in config file. gnv-artifacts/trunk@490 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 29 Dec 2009 10:09:26 +0000
parents 7399bb8f83ea
children da21c256a0ba
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.artifacts.context;
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5
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6 import java.io.FileInputStream;
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7 import java.io.FileNotFoundException;
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8 import java.io.IOException;
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9 import java.io.InputStream;
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10 import java.io.File;
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11
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12 import java.util.Properties;
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13 import java.util.HashMap;
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14 import java.util.ArrayList;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import org.w3c.dom.Document;
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19 import org.w3c.dom.Element;
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20 import org.w3c.dom.NodeList;
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21 import org.w3c.dom.Node;
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22
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23 import de.intevation.gnv.geobackend.base.connectionpool.ConnectionPoolFactory;
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24
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25 import de.intevation.gnv.geobackend.base.query.container.QueryContainerFactory;
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26 import de.intevation.gnv.geobackend.base.query.container.exception.QueryContainerException;
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27
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28 import de.intevation.gnv.chart.XMLChartTheme;
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29
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30 import de.intevation.gnv.artifacts.cache.CacheFactory;
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31
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32 import de.intevation.gnv.raster.Palette;
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33 import de.intevation.gnv.raster.PaletteManager;
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34
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35 import de.intevation.artifacts.ArtifactContextFactory;
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36
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37 import de.intevation.artifactdatabase.Config;
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38 import de.intevation.artifactdatabase.XMLUtils;
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39
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40 /**
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41 * @author Tim Englich (tim.englich@intevation.de)
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42 * @author Ingo Weinzierl (iweinzierl@intevation.de)
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43 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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44 */
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45 public class GNVArtifactContextFactory implements ArtifactContextFactory {
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46 /**
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47 * the logger, used to log exceptions and additonaly information
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48 */
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49 private static Logger log = Logger.getLogger(GNVArtifactContext.class);
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50
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51 public static final String XPATH_GEOBACKEND_CONFIGURATION =
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52 "artifact-database/geo-backend/backend-configuration";
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53
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54 public static final String XPATH_GEOBACKEND_QUERYCONFIGURATION =
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55 "artifact-database/geo-backend/query-configuration";
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56
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57 private final static String CACHECONFIGNODEPATH =
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58 "/artifact-database/ehcache/configuration";
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59
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60 private final static String CHARTCONFIGNODEPATH =
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61 "/artifact-database/gnv/charttemplate/configuration";
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62
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63 public final static String PALETTES_PATH =
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64 "/artifact-database/gnv/palettes";
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65
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66 public final static String PALETTE_ITEMS =
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67 "palette";
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68
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69 public final static String PALETTES =
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70 "gnv.color.palettes";
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71
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72 public final static String CHARTTEMPLATE = "gnv.chart.template";
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73
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74 /**
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75 * Constructor
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76 */
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77 public GNVArtifactContextFactory() {
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78 super();
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79 log.debug("GNVArtifactContextFactory.Constructor");
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80 }
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81
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82 /**
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83 * @see de.intevation.artifacts.ArtifactContextFactory#createArtifactContext(org.w3c.dom.Document)
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84 */
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85 public Object createArtifactContext(Document config) {
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86 GNVArtifactContext returnValue = null;
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87 try {
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88 log.debug("GNVArtifactContextFactory.createArtifactContext");
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89 log.info("Initialisation of the Geo-BackendConnectionPool");
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90 String backendConfigurationFile = Config.getStringXPath(config,
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91 XPATH_GEOBACKEND_CONFIGURATION);
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92 backendConfigurationFile = Config.replaceConfigDir(
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93 backendConfigurationFile);
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94
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95 Properties properties = getProperties(backendConfigurationFile);
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96 ConnectionPoolFactory cpf = ConnectionPoolFactory.getInstance();
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97 cpf.initializeConnectionPool(properties);
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98
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99 log.info("Initialisation of the QueryContainer");
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100 String queryConfigurationFile = Config.getStringXPath(config,
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101 XPATH_GEOBACKEND_QUERYCONFIGURATION);
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102 queryConfigurationFile = Config.replaceConfigDir(
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103 queryConfigurationFile);
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104
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105 Properties queryProperties = getProperties(queryConfigurationFile);
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106 QueryContainerFactory qcf = QueryContainerFactory.getInstance();
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107 qcf.initializeQueryContainer(queryProperties);
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108
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109 log.info("Initialisation of the Cache");
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110 String cacheConfigurationFile = Config.getStringXPath(config,
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111 CACHECONFIGNODEPATH);
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112 cacheConfigurationFile = Config.replaceConfigDir(
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113 cacheConfigurationFile);
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114
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115 CacheFactory cf = CacheFactory.getInstance();
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116 cf.initializeCache(cacheConfigurationFile);
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117
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118 returnValue = new GNVArtifactContext(config);
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119
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120 configurePalettes(config, returnValue);
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121
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122 configureChartTemplate(config, returnValue);
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123
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124
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125 } catch (FileNotFoundException e) {
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126 log.error(e, e);
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127 } catch (IOException e) {
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128 log.error(e, e);
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129 } catch (QueryContainerException e) {
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130 log.error(e, e);
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131 }
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132 return returnValue;
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133 }
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134
426
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135 protected void configureChartTemplate(
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136 Document config,
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137 GNVArtifactContext context
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138 ) {
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139 log.info("Initialisation of chart template");
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140 String chartConfigFile = Config.getStringXPath(
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141 config, CHARTCONFIGNODEPATH
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142 );
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143 chartConfigFile = Config.replaceConfigDir(chartConfigFile);
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144 log.debug("Parse xml configuration of " + chartConfigFile);
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145
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146 Document tmpl = XMLUtils.parseDocument(new File(chartConfigFile));
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147 XMLChartTheme theme = new XMLChartTheme("XMLChartTheme");
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148 if (tmpl != null) {
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149 theme.applyXMLConfiguration(tmpl);
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150 }
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151 else {
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152 log.error(
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153 "Cannot load chart template from '" +
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154 chartConfigFile + "'");
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155 }
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156
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157 context.put(CHARTTEMPLATE, theme);
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158 }
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159
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160 protected void configurePalettes(
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161 Document config,
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162 GNVArtifactContext context
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163 ) {
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164 log.info("configure palettes");
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165
438
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166 HashMap<Integer, PaletteManager> palettes = new HashMap();
426
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167
442
52e031261eaa Create a new 'gnv' section in config file.
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168 Element node = (Element)Config.getNodeXPath(config, PALETTES_PATH);
426
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169
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170 if (node == null) {
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171 log.error("No palettes found");
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172 }
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173 else {
442
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174 NodeList pals = node.getElementsByTagName(PALETTE_ITEMS);
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175 for (int i = 0, N = pals==null?0:pals.getLength(); i < N; ++i) {
426
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176 Element pal = (Element)pals.item(i);
438
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177 String name = pal.getAttribute("name");
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178 String description = pal.getAttribute("description");
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179 String filename = pal.getAttribute("file");
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180 String parameterIds = pal.getAttribute("parameter-ids");
426
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181
438
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182 if (name == null || (name = name.trim()).length() == 0) {
426
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183 log.error("Palette has no 'name' attribute.");
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184 }
438
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185 else if (filename == null
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186 || (filename = filename.trim()).length() == 0) {
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187 log.error("Palette '" + name + "' has no 'file' attribute.");
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188 }
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189 else if (parameterIds == null
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190 || (parameterIds = parameterIds.trim()).length() == 0) {
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diff changeset
191 log.error("no parameter ids given for '" + name + "'");
426
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192 }
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diff changeset
193 else {
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
194 ArrayList<Integer> ids = new ArrayList<Integer>();
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195 for (String idString: parameterIds.split("[\t ,]+")) {
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diff changeset
196 try {
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
197 ids.add(Integer.valueOf(idString));
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198 }
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diff changeset
199 catch (NumberFormatException nfe) {
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diff changeset
200 log.error(
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
201 "parameter id '" + idString + "' is integer");
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202 }
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diff changeset
203 }
426
3a0c0ad113d9 Load palettes from configuration.
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diff changeset
204 filename = Config.replaceConfigDir(filename);
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diff changeset
205 Document document = XMLUtils.parseDocument(
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206 new File(filename));
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diff changeset
207 if (document == null) {
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diff changeset
208 log.error("Cannot load palette file '" +
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diff changeset
209 filename + "'");
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diff changeset
210 }
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diff changeset
211 else {
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
212 PaletteManager manager = new PaletteManager(
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diff changeset
213 name,
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
214 description,
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
215 new Palette(document));
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
216 for (Integer id: ids) {
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
217 palettes.put(id, manager);
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parents: 426
diff changeset
218 }
426
3a0c0ad113d9 Load palettes from configuration.
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diff changeset
219 }
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diff changeset
220 }
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
221 } // for all palettes
426
3a0c0ad113d9 Load palettes from configuration.
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diff changeset
222 }
3a0c0ad113d9 Load palettes from configuration.
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diff changeset
223
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diff changeset
224 context.put(PALETTES, palettes);
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parents: 369
diff changeset
225 }
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parents: 369
diff changeset
226
52
4d6a82b96059 First Implementation of the GNV-Artifacts
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227 /**
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
228 * @param filePath
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parents:
diff changeset
229 * @return
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
230 * @throws FileNotFoundException
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
231 * @throws IOException
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
232 */
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
233 private Properties getProperties(String filePath)
426
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diff changeset
234 throws FileNotFoundException, IOException
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diff changeset
235 {
172
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
236 InputStream inputStream = null;
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
237 try {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
238 inputStream = new FileInputStream(filePath);
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
239 Properties properties = new Properties();
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
240 properties.load(inputStream);
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
241 return properties;
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
242 }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
243 finally {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
244 if (inputStream != null) {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
245 try { inputStream.close(); }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
246 catch (IOException ioe) {}
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
247 }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
248 }
52
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
249 }
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
250 }
http://dive4elements.wald.intevation.org