Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVProductArtifactFactory.java @ 800:db5b04ecb426
ISSUE215: Improved ODV-Export. now all Columns which have identical values but different Parameters will be merged to one row.
gnv-artifacts/trunk@882 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Tim Englich <tim.englich@intevation.de> |
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date | Tue, 06 Apr 2010 13:07:11 +0000 |
parents | 0dc115cbef0d |
children | 22c18083225e |
rev | line source |
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1 package de.intevation.gnv.artifacts; |
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2 |
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3 import de.intevation.artifactdatabase.DefaultArtifactFactory; |
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4 import de.intevation.artifactdatabase.ProxyArtifact; |
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5 import de.intevation.artifactdatabase.XMLUtils; |
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6 |
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7 import de.intevation.artifacts.Artifact; |
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8 import de.intevation.artifacts.ArtifactFactory; |
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9 |
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10 import de.intevation.gnv.artifacts.fis.SelectProductArtifact; |
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11 |
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12 import de.intevation.gnv.artifacts.fis.product.DefaultProduct; |
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13 |
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14 import de.intevation.gnv.state.DefaultInputData; |
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15 |
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16 import java.util.ArrayList; |
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17 import java.util.Collection; |
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18 import java.util.HashMap; |
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19 import java.util.Map; |
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20 |
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21 import javax.xml.xpath.XPathConstants; |
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22 |
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23 import org.apache.log4j.Logger; |
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24 |
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25 import org.w3c.dom.Document; |
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26 import org.w3c.dom.Node; |
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27 import org.w3c.dom.NodeList; |
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28 |
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29 /** |
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30 * This factory is called to create a {@link |
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31 * de.intevation.gnv.artifacts.fis.SelectProductArtifact} which lets the user |
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32 * select a product supported by the selected fis. |
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33 * |
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34 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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35 */ |
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36 public class GNVProductArtifactFactory extends DefaultArtifactFactory { |
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37 |
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38 /** |
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39 * |
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40 */ |
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41 public static final String XPATH_REPLACE_NAME = "IDENTIFIER"; |
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42 |
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43 /** |
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44 * |
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45 */ |
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46 public static final String XPATH_PRODUCT_ARTIFACT = |
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47 "artifact-database/artifacts/artifact[@name='"+XPATH_REPLACE_NAME+"']"; |
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48 |
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49 /** |
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50 * |
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51 */ |
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52 public static final String XPATH_PRODUCT = "products/product"; |
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53 |
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54 /** |
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55 * |
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56 */ |
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57 public static final String XPATH_PRODUCT_NAME = "@name"; |
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58 |
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59 /** |
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60 * |
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61 */ |
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62 public static final String XPATH_PRODUCT_FACTORY = "artifact-factory"; |
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63 |
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64 /** |
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65 * |
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66 */ |
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67 public static final String XPATH_PRODUCT_PARAMETER = "parameters/parameter"; |
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68 |
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69 private Logger logger = Logger.getLogger(GNVProductArtifactFactory.class); |
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70 |
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71 private Map productFactories; |
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72 private Map products; |
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73 |
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74 |
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75 /** |
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76 * Constructor. |
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77 */ |
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78 public GNVProductArtifactFactory() { |
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79 } |
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80 |
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81 /** |
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82 * Method to create an artifact. If the created artifact is from type |
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83 * <code>ProxyArtifact</code>, a further ProductSelectArtifact is created |
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84 * which becomes embedded into the <code>ProxyArtifact</code>. |
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85 * @param identifier UUID. |
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86 * @param context CallContext. |
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87 * @param data Some data. |
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88 * @return The created artifact. |
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89 */ |
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90 @Override |
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91 public Artifact createArtifact(String identifier, Object context, Document data) { |
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92 |
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93 // create a SelectProductArtifact for initial product selection |
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94 Artifact artifact = super.createArtifact(identifier, context, data); |
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95 |
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96 if (artifact instanceof ProxyArtifact) { |
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97 |
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98 SelectProductArtifact select = new SelectProductArtifact(); |
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99 select.setProducts(products); |
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100 select.setup(identifier, this, context, data); |
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101 |
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102 ((ProxyArtifact) artifact).setProxied(select); |
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103 } |
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104 |
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105 return artifact; |
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106 } |
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107 |
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108 /** |
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109 * |
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110 * @param document |
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111 * @param factoryNode |
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112 */ |
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113 @Override |
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114 public void setup(Document document, Node factoryNode) { |
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115 super.setup(document, factoryNode); |
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116 |
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117 String xpath = XPATH_PRODUCT_ARTIFACT.replace(XPATH_REPLACE_NAME, name); |
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118 Node artifact = (Node) XMLUtils.xpath( |
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119 document, xpath, XPathConstants.NODE); |
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120 |
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121 NodeList productNodes = (NodeList) XMLUtils.xpath( |
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122 artifact, XPATH_PRODUCT, XPathConstants.NODESET); |
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123 |
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124 if (productNodes == null) { |
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125 logger.warn("No products found for fis: " + name); |
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126 return; |
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127 } |
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128 |
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129 int productLength = productNodes.getLength(); |
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130 |
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131 if (productLength != 0) { |
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132 productFactories = new HashMap(productLength); |
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133 products = new HashMap(productLength); |
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134 |
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135 parseProductFactories(document, productNodes); |
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136 } |
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137 } |
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138 |
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139 |
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140 /** |
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141 * |
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142 * @param name |
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143 * @return |
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144 */ |
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145 public ArtifactFactory getArtifactFactoryByName(String name) { |
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146 return (ArtifactFactory) productFactories.get(name); |
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147 } |
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148 |
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149 |
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150 /** |
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151 * |
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152 * @param document |
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153 * @param products |
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154 */ |
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155 protected void parseProductFactories(Document document, NodeList products) { |
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156 int items = products.getLength(); |
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157 |
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158 for(int i = 0; i < items; i++) { |
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159 |
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160 try { |
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161 Node product = products.item(i); |
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162 |
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163 String name = (String) XMLUtils.xpath( |
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164 product, XPATH_PRODUCT_NAME, XPathConstants.STRING); |
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165 |
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166 Node factoryNode = (Node) XMLUtils.xpath( |
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167 product, XPATH_PRODUCT_FACTORY, XPathConstants.NODE); |
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168 |
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169 String factoryClass = factoryNode.getTextContent(); |
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170 |
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171 if (factoryClass == null || factoryClass.equals("")) { |
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172 logger.warn("No artifact factory class found for " + name); |
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173 continue; |
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174 } |
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175 |
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176 Class cls = Class.forName(factoryClass); |
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177 ArtifactFactory factory = (ArtifactFactory) cls.newInstance(); |
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178 factory.setup(document, factoryNode); |
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179 |
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180 productFactories.put(name, factory); |
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181 initializeProducts(product); |
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182 } |
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183 catch (ClassNotFoundException cnfe) { |
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184 logger.warn(cnfe, cnfe); |
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185 } |
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186 catch (InstantiationException ie) { |
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187 logger.warn(ie, ie); |
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188 } |
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189 catch (IllegalAccessException iae) { |
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190 logger.warn(iae, iae); |
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191 } |
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192 } |
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193 } |
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194 |
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195 |
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196 /** |
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197 * Initialize all products supported by the current fis. |
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198 * @param productNode |
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199 */ |
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200 protected void initializeProducts(Node productNode) { |
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201 String productName = (String) XMLUtils.xpath( |
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202 productNode, "@name", XPathConstants.STRING); |
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203 |
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204 NodeList parameterNodes = (NodeList) XMLUtils.xpath( |
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205 productNode, XPATH_PRODUCT_PARAMETER, XPathConstants.NODESET |
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206 ); |
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207 |
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208 if (parameterNodes != null) { |
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209 int items = parameterNodes.getLength(); |
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210 Collection inputParameter = new ArrayList(items); |
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211 |
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212 for (int j = 0; j < items; j++) { |
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213 Node parameterNode = (Node) parameterNodes.item(j); |
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214 String name = (String) XMLUtils.xpath( |
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215 parameterNode, "@name", XPathConstants.STRING); |
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216 String value = (String) XMLUtils.xpath( |
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217 parameterNode, "@value", XPathConstants.STRING); |
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218 |
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219 inputParameter.add(new DefaultInputData(name, value)); |
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220 } |
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221 |
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222 products.put( |
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223 productName, |
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224 new DefaultProduct(productName, inputParameter, this.name) |
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225 ); |
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226 } |
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Added support to step back to the point for choosing a product.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
changeset
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227 } |
0e0c64c821dc
Added support to step back to the point for choosing a product.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
changeset
|
228 } |
789
0dc115cbef0d
Added javadoc for artifact package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
780
diff
changeset
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229 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |