Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java @ 438:7399bb8f83ea

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Added manager to handle several levels of palette subdivsions. Added parameter ids to identify the palette associated with a parameter gnv-artifacts/trunk@486 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 28 Dec 2009 11:50:27 +0000
parents 3a0c0ad113d9
children 52e031261eaa
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 *
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43 */
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44 public class GNVArtifactContextFactory implements ArtifactContextFactory {
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45 /**
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46 * the logger, used to log exceptions and additonaly information
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47 */
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48 private static Logger log = Logger.getLogger(GNVArtifactContext.class);
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49
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50 public static final String XPATH_GEOBACKEND_CONFIGURATION =
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51 "artifact-database/geo-backend/backend-configuration";
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52
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53 public static final String XPATH_GEOBACKEND_QUERYCONFIGURATION =
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54 "artifact-database/geo-backend/query-configuration";
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55
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56 private final static String CACHECONFIGNODEPATH =
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57 "/artifact-database/ehcache/configuration";
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58
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59 private final static String CHARTCONFIGNODEPATH =
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60 "/artifact-database/charttemplate/configuration";
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61
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62 public final static String PALETTES_PATH =
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63 "/artifact-database/palettes";
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64
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65 public final static String PALETTE_ITEMS =
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66 "palette";
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67
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68 public final static String PALETTES =
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69 "color.palettes";
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70
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71 public final static String CHARTTEMPLATE = "template";
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72
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73 /**
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74 * Constructor
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75 */
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76 public GNVArtifactContextFactory() {
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77 super();
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78 log.debug("GNVArtifactContextFactory.Constructor");
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79 }
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80
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81 /**
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82 * @see de.intevation.artifacts.ArtifactContextFactory#createArtifactContext(org.w3c.dom.Document)
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83 */
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84 public Object createArtifactContext(Document config) {
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85 GNVArtifactContext returnValue = null;
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86 try {
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87 log.debug("GNVArtifactContextFactory.createArtifactContext");
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88 log.info("Initialisation of the Geo-BackendConnectionPool");
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89 String backendConfigurationFile = Config.getStringXPath(config,
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90 XPATH_GEOBACKEND_CONFIGURATION);
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91 backendConfigurationFile = Config.replaceConfigDir(
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92 backendConfigurationFile);
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93
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94 Properties properties = getProperties(backendConfigurationFile);
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95 ConnectionPoolFactory cpf = ConnectionPoolFactory.getInstance();
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96 cpf.initializeConnectionPool(properties);
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97
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98 log.info("Initialisation of the QueryContainer");
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99 String queryConfigurationFile = Config.getStringXPath(config,
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100 XPATH_GEOBACKEND_QUERYCONFIGURATION);
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101 queryConfigurationFile = Config.replaceConfigDir(
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102 queryConfigurationFile);
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103
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104 Properties queryProperties = getProperties(queryConfigurationFile);
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105 QueryContainerFactory qcf = QueryContainerFactory.getInstance();
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106 qcf.initializeQueryContainer(queryProperties);
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107
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108 log.info("Initialisation of the Cache");
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109 String cacheConfigurationFile = Config.getStringXPath(config,
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110 CACHECONFIGNODEPATH);
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111 cacheConfigurationFile = Config.replaceConfigDir(
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112 cacheConfigurationFile);
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113
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114 CacheFactory cf = CacheFactory.getInstance();
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115 cf.initializeCache(cacheConfigurationFile);
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116
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117 returnValue = new GNVArtifactContext(config);
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118
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119 configurePalettes(config, returnValue);
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120
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121 configureChartTemplate(config, returnValue);
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122
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123
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124 } catch (FileNotFoundException e) {
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125 log.error(e, e);
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126 } catch (IOException e) {
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127 log.error(e, e);
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128 } catch (QueryContainerException e) {
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129 log.error(e, e);
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130 }
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131 return returnValue;
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132 }
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133
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134 protected void configureChartTemplate(
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135 Document config,
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136 GNVArtifactContext context
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137 ) {
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138 log.info("Initialisation of chart template");
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139 String chartConfigFile = Config.getStringXPath(
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140 config, CHARTCONFIGNODEPATH
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141 );
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142 chartConfigFile = Config.replaceConfigDir(chartConfigFile);
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143 log.debug("Parse xml configuration of " + chartConfigFile);
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144
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145 Document tmpl = XMLUtils.parseDocument(new File(chartConfigFile));
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146 XMLChartTheme theme = new XMLChartTheme("XMLChartTheme");
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147 if (tmpl != null) {
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148 theme.applyXMLConfiguration(tmpl);
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149 }
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150 else {
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151 log.error(
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152 "Cannot load chart template from '" +
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153 chartConfigFile + "'");
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154 }
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155
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156 context.put(CHARTTEMPLATE, theme);
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157 }
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158
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159 protected void configurePalettes(
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160 Document config,
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161 GNVArtifactContext context
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162 ) {
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163 log.info("configure palettes");
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164
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165 HashMap<Integer, PaletteManager> palettes = new HashMap();
426
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166
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167 Node node = Config.getNodeXPath(config, PALETTES_PATH);
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168
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169 if (node == null) {
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170 log.error("No palettes found");
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171 }
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172 else {
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173 NodeList pals = Config.getNodeSetXPath(PALETTE_ITEMS);
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174 for (int i = 0, N = pals == null ? 0 : pals.getLength(); i < N; ++i) {
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175 Element pal = (Element)pals.item(i);
438
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176 String name = pal.getAttribute("name");
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177 String description = pal.getAttribute("description");
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178 String filename = pal.getAttribute("file");
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179 String parameterIds = pal.getAttribute("parameter-ids");
426
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180
438
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181 if (name == null || (name = name.trim()).length() == 0) {
426
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182 log.error("Palette has no 'name' attribute.");
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183 }
438
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184 else if (filename == null
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185 || (filename = filename.trim()).length() == 0) {
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diff changeset
186 log.error("Palette '" + name + "' has no 'file' attribute.");
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187 }
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diff changeset
188 else if (parameterIds == null
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diff changeset
189 || (parameterIds = parameterIds.trim()).length() == 0) {
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diff changeset
190 log.error("no parameter ids given for '" + name + "'");
426
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diff changeset
191 }
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diff changeset
192 else {
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
193 ArrayList<Integer> ids = new ArrayList<Integer>();
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194 for (String idString: parameterIds.split("[\t ,]+")) {
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diff changeset
195 try {
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
196 ids.add(Integer.valueOf(idString));
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diff changeset
197 }
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
198 catch (NumberFormatException nfe) {
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diff changeset
199 log.error(
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
200 "parameter id '" + idString + "' is integer");
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diff changeset
201 }
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
202 }
426
3a0c0ad113d9 Load palettes from configuration.
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203 filename = Config.replaceConfigDir(filename);
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diff changeset
204 Document document = XMLUtils.parseDocument(
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205 new File(filename));
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diff changeset
206 if (document == null) {
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diff changeset
207 log.error("Cannot load palette file '" +
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diff changeset
208 filename + "'");
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diff changeset
209 }
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diff changeset
210 else {
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
211 PaletteManager manager = new PaletteManager(
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parents: 426
diff changeset
212 name,
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
213 description,
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
214 new Palette(document));
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parents: 426
diff changeset
215 for (Integer id: ids) {
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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parents: 426
diff changeset
216 palettes.put(id, manager);
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diff changeset
217 }
426
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diff changeset
218 }
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diff changeset
219 }
438
7399bb8f83ea Added manager to handle several levels of palette subdivsions.
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diff changeset
220 } // for all palettes
426
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diff changeset
221 }
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diff changeset
222
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diff changeset
223 context.put(PALETTES, palettes);
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diff changeset
224 }
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diff changeset
225
52
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
226 /**
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
227 * @param filePath
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
228 * @return
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
229 * @throws FileNotFoundException
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
230 * @throws IOException
4d6a82b96059 First Implementation of the GNV-Artifacts
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parents:
diff changeset
231 */
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
232 private Properties getProperties(String filePath)
426
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diff changeset
233 throws FileNotFoundException, IOException
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diff changeset
234 {
172
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
235 InputStream inputStream = null;
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
236 try {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
237 inputStream = new FileInputStream(filePath);
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
238 Properties properties = new Properties();
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
239 properties.load(inputStream);
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
240 return properties;
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
241 }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
242 finally {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
243 if (inputStream != null) {
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
244 try { inputStream.close(); }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
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parents: 171
diff changeset
245 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
246 }
b5e55f460f0b Closed small file descriptor leak in loading SQL properties file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 171
diff changeset
247 }
52
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
248 }
4d6a82b96059 First Implementation of the GNV-Artifacts
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
249 }
http://dive4elements.wald.intevation.org