Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java @ 443:da21c256a0ba
"horizontale Schnittprofile" are now configured via conf.xml
gnv-artifacts/trunk@491 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Tue, 29 Dec 2009 14:54:17 +0000 |
parents | 52e031261eaa |
children | 85f48e287fb3 |
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 |
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22 import de.intevation.gnv.geobackend.base.connectionpool.ConnectionPoolFactory; |
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23 |
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24 import de.intevation.gnv.geobackend.base.query.container.QueryContainerFactory; |
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25 import de.intevation.gnv.geobackend.base.query.container.exception.QueryContainerException; |
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26 |
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27 import de.intevation.gnv.chart.XMLChartTheme; |
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28 |
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29 import de.intevation.gnv.artifacts.cache.CacheFactory; |
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30 |
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31 import de.intevation.gnv.raster.Palette; |
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32 import de.intevation.gnv.raster.PaletteManager; |
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33 |
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34 import de.intevation.artifacts.ArtifactContextFactory; |
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35 |
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36 import de.intevation.artifactdatabase.Config; |
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37 import de.intevation.artifactdatabase.XMLUtils; |
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38 |
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39 /** |
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40 * @author Tim Englich (tim.englich@intevation.de) |
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41 * @author Ingo Weinzierl (iweinzierl@intevation.de) |
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42 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) |
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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/gnv/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/gnv/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 HORIZONTAL_CROSS_SECTION_PROFILE_SAMPLES = |
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69 "/artifact-database/gnv/horizontal-cross-section-profile/samples/@number"; |
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70 |
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71 /** |
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72 * Constructor |
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73 */ |
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74 public GNVArtifactContextFactory() { |
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75 super(); |
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76 log.debug("GNVArtifactContextFactory.Constructor"); |
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77 } |
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78 |
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79 /** |
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80 * @see de.intevation.artifacts.ArtifactContextFactory#createArtifactContext(org.w3c.dom.Document) |
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81 */ |
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82 public Object createArtifactContext(Document config) { |
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83 GNVArtifactContext returnValue = null; |
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84 try { |
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85 log.debug("GNVArtifactContextFactory.createArtifactContext"); |
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86 log.info("Initialisation of the Geo-BackendConnectionPool"); |
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87 String backendConfigurationFile = Config.getStringXPath(config, |
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88 XPATH_GEOBACKEND_CONFIGURATION); |
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89 backendConfigurationFile = Config.replaceConfigDir( |
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90 backendConfigurationFile); |
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91 |
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92 Properties properties = getProperties(backendConfigurationFile); |
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93 ConnectionPoolFactory cpf = ConnectionPoolFactory.getInstance(); |
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94 cpf.initializeConnectionPool(properties); |
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95 |
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96 log.info("Initialisation of the QueryContainer"); |
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97 String queryConfigurationFile = Config.getStringXPath(config, |
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98 XPATH_GEOBACKEND_QUERYCONFIGURATION); |
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99 queryConfigurationFile = Config.replaceConfigDir( |
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100 queryConfigurationFile); |
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101 |
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102 Properties queryProperties = getProperties(queryConfigurationFile); |
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103 QueryContainerFactory qcf = QueryContainerFactory.getInstance(); |
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104 qcf.initializeQueryContainer(queryProperties); |
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105 |
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106 log.info("Initialisation of the Cache"); |
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107 String cacheConfigurationFile = Config.getStringXPath(config, |
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108 CACHECONFIGNODEPATH); |
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109 cacheConfigurationFile = Config.replaceConfigDir( |
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110 cacheConfigurationFile); |
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111 |
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112 CacheFactory cf = CacheFactory.getInstance(); |
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113 cf.initializeCache(cacheConfigurationFile); |
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114 |
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115 returnValue = new GNVArtifactContext(config); |
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116 |
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117 configurePalettes(config, returnValue); |
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118 |
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119 configureChartTemplate(config, returnValue); |
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120 |
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121 configureHorizontalCrossSectionProfile(config, returnValue); |
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122 |
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123 } catch (FileNotFoundException e) { |
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124 log.error(e, e); |
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125 } catch (IOException e) { |
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126 log.error(e, e); |
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127 } catch (QueryContainerException e) { |
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128 log.error(e, e); |
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129 } |
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130 return returnValue; |
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131 } |
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132 |
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133 protected void configureHorizontalCrossSectionProfile( |
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134 Document config, |
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135 GNVArtifactContext context |
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136 ) |
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137 { |
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138 log.info("configuration of horizontal cross section profile"); |
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139 |
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140 String numSamples = Config.getStringXPath( |
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141 config, |
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142 HORIZONTAL_CROSS_SECTION_PROFILE_SAMPLES); |
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143 |
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144 Integer samples = |
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145 GNVArtifactContext.DEFAULT_HORIZONTAL_CROSS_SECTION_PROFILE_SAMPLES; |
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146 |
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147 if (numSamples == null) { |
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148 log.warn("No number of samples found."); |
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149 } |
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150 else { |
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151 try { |
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152 samples = Integer.valueOf(numSamples); |
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153 } |
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154 catch (NumberFormatException nfe) { |
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155 log.warn("Invalid integer for number of samples"); |
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156 } |
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157 } |
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158 |
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159 log.info("# horizontal cross section profile samples: " + samples); |
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160 |
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161 context.put( |
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162 GNVArtifactContext.HORIZONTAL_CROSS_SECTION_PROFILE_SAMPLES_KEY, |
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163 samples); |
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164 } |
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165 |
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166 protected void configureChartTemplate( |
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167 Document config, |
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168 GNVArtifactContext context |
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169 ) { |
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170 log.info("Initialisation of chart template"); |
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171 String chartConfigFile = Config.getStringXPath( |
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172 config, CHARTCONFIGNODEPATH |
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173 ); |
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174 |
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175 XMLChartTheme theme = new XMLChartTheme("XMLChartTheme"); |
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176 |
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177 if (chartConfigFile == null) { |
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178 log.warn("no configuration file for chart template found"); |
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179 } |
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180 else { |
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181 chartConfigFile = Config.replaceConfigDir(chartConfigFile); |
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182 log.debug("Parse xml configuration of " + chartConfigFile); |
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183 |
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184 Document tmpl = XMLUtils.parseDocument(new File(chartConfigFile)); |
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185 if (tmpl != null) { |
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186 theme.applyXMLConfiguration(tmpl); |
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187 } |
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188 else { |
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189 log.error( |
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190 "Cannot load chart template from '" + |
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191 chartConfigFile + "'"); |
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192 } |
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193 } |
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194 |
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195 context.put(GNVArtifactContext.CHART_TEMPLATE_KEY, theme); |
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196 } |
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197 |
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198 protected void configurePalettes( |
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199 Document config, |
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200 GNVArtifactContext context |
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201 ) { |
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202 log.info("configure palettes"); |
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203 |
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204 HashMap<Integer, PaletteManager> palettes = new HashMap(); |
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205 |
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206 Element node = (Element)Config.getNodeXPath(config, PALETTES_PATH); |
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207 |
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208 if (node == null) { |
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209 log.error("No palettes found"); |
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210 } |
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211 else { |
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212 NodeList pals = node.getElementsByTagName(PALETTE_ITEMS); |
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213 for (int i = 0, N = pals==null?0:pals.getLength(); i < N; ++i) { |
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214 Element pal = (Element)pals.item(i); |
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215 String name = pal.getAttribute("name"); |
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216 String description = pal.getAttribute("description"); |
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217 String filename = pal.getAttribute("file"); |
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218 String parameterIds = pal.getAttribute("parameter-ids"); |
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219 |
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220 if (name == null || (name = name.trim()).length() == 0) { |
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221 log.error("Palette has no 'name' attribute."); |
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222 } |
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223 else if (filename == null |
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224 || (filename = filename.trim()).length() == 0) { |
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225 log.error("Palette '" + name + "' has no 'file' attribute."); |
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226 } |
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227 else if (parameterIds == null |
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228 || (parameterIds = parameterIds.trim()).length() == 0) { |
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229 log.error("no parameter ids given for '" + name + "'"); |
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230 } |
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231 else { |
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232 ArrayList<Integer> ids = new ArrayList<Integer>(); |
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233 for (String idString: parameterIds.split("[\t ,]+")) { |
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234 try { |
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235 ids.add(Integer.valueOf(idString)); |
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236 } |
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237 catch (NumberFormatException nfe) { |
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238 log.error( |
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239 "parameter id '" + idString + "' is integer"); |
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240 } |
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241 } |
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242 filename = Config.replaceConfigDir(filename); |
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243 Document document = XMLUtils.parseDocument( |
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244 new File(filename)); |
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245 if (document == null) { |
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246 log.error("Cannot load palette file '" + |
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247 filename + "'"); |
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248 } |
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249 else { |
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250 PaletteManager manager = new PaletteManager( |
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251 name, |
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252 description, |
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253 new Palette(document)); |
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254 for (Integer id: ids) { |
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255 palettes.put(id, manager); |
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256 } |
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257 } |
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258 } |
438
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259 } // for all palettes |
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260 } |
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261 |
443
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262 context.put(GNVArtifactContext.PALETTES_KEY, palettes); |
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263 } |
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264 |
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265 /** |
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266 * @param filePath |
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267 * @return |
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268 * @throws FileNotFoundException |
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269 * @throws IOException |
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270 */ |
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271 private Properties getProperties(String filePath) |
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272 throws FileNotFoundException, IOException |
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273 { |
172
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274 InputStream inputStream = null; |
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275 try { |
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276 inputStream = new FileInputStream(filePath); |
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277 Properties properties = new Properties(); |
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278 properties.load(inputStream); |
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279 return properties; |
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280 } |
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281 finally { |
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282 if (inputStream != null) { |
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283 try { inputStream.close(); } |
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284 catch (IOException ioe) {} |
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285 } |
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286 } |
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287 } |
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288 } |