Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVProductArtifactFactory.java @ 594:5b9b74c08bbb

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Changed Method signatures because of Interfacemodifications in the Artifact-Module gnv-artifacts/trunk@650 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Mon, 01 Feb 2010 14:03:01 +0000
parents d47b478e662b
children b1f5f2a8840f
rev   line source
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1 package de.intevation.gnv.artifacts;
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2
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3 import java.util.ArrayList;
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4 import java.util.Collection;
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5 import java.util.HashMap;
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6 import java.util.Map;
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7
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8 import javax.xml.xpath.XPathConstants;
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9
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10 import org.apache.log4j.Logger;
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Node;
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13 import org.w3c.dom.NodeList;
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14
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15 import de.intevation.artifactdatabase.DefaultArtifactFactory;
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16 import de.intevation.artifactdatabase.ProxyArtifact;
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17 import de.intevation.artifactdatabase.XMLUtils;
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18 import de.intevation.artifacts.Artifact;
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19 import de.intevation.artifacts.ArtifactFactory;
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20 import de.intevation.gnv.artifacts.fis.SelectProductArtifact;
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21 import de.intevation.gnv.artifacts.fis.product.DefaultProduct;
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22 import de.intevation.gnv.state.DefaultInputData;
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23
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24 /**
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25 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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26 */
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27 public class GNVProductArtifactFactory extends DefaultArtifactFactory {
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28
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29 public static final String XPATH_REPLACE_NAME = "IDENTIFIER";
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30
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31 public static final String XPATH_PRODUCT_ARTIFACT =
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32 "artifact-database/artifacts/artifact[@name='"+XPATH_REPLACE_NAME+"']";
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33
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34 public static final String XPATH_PRODUCT = "products/product";
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35
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36 public static final String XPATH_PRODUCT_NAME = "@name";
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37
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38 public static final String XPATH_PRODUCT_FACTORY = "artifact-factory";
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39
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40 public static final String XPATH_PRODUCT_PARAMETER = "parameters/parameter";
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41
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42 private Logger logger = Logger.getLogger(GNVProductArtifactFactory.class);
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43
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44 private Map productFactories;
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45 private Map products;
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46
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47
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48 public GNVProductArtifactFactory() {
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49 }
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50
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51 @Override
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52 public Artifact createArtifact(String identifier, Object context, Document data) {
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53
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54 // create a SelectProductArtifact for initial product selection
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55 Artifact artifact = super.createArtifact(identifier, context, data);
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56
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57 if (artifact instanceof ProxyArtifact) {
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58
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59 SelectProductArtifact select = new SelectProductArtifact();
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60 select.setProducts(products);
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61 select.setup(identifier, this, context, data);
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62
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63 ((ProxyArtifact) artifact).setProxied(select);
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64 }
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65
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66 return artifact;
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67 }
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68
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69 @Override
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70 public void setup(Document document, Node factoryNode) {
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71 super.setup(document, factoryNode);
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72
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73 String xpath = XPATH_PRODUCT_ARTIFACT.replace(XPATH_REPLACE_NAME, name);
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74 Node artifact = (Node) XMLUtils.xpath(
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75 document, xpath, XPathConstants.NODE);
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76
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77 NodeList productNodes = (NodeList) XMLUtils.xpath(
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78 artifact, XPATH_PRODUCT, XPathConstants.NODESET);
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79
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80 if (productNodes == null) {
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81 logger.warn("No products found for fis: " + name);
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82 return;
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83 }
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84
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85 int productLength = productNodes.getLength();
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86
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87 if (productLength != 0) {
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88 productFactories = new HashMap(productLength);
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89 products = new HashMap(productLength);
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90
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91 parseProductFactories(document, productNodes);
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92 }
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93 }
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94
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95
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96 public ArtifactFactory getArtifactFactoryByName(String name) {
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97 return (ArtifactFactory) productFactories.get(name);
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98 }
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99
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100
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101 protected void parseProductFactories(Document document, NodeList products) {
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102 int items = products.getLength();
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103
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104 for(int i = 0; i < items; i++) {
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105
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106 try {
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107 Node product = products.item(i);
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108
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109 String name = (String) XMLUtils.xpath(
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110 product, XPATH_PRODUCT_NAME, XPathConstants.STRING);
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111
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112 Node factoryNode = (Node) XMLUtils.xpath(
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113 product, XPATH_PRODUCT_FACTORY, XPathConstants.NODE);
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114
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115 String factoryClass = factoryNode.getTextContent();
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116
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117 if (factoryClass == null || factoryClass.equals("")) {
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118 logger.warn("No artifact factory class found for " + name);
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119 continue;
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120 }
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121
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122 Class cls = Class.forName(factoryClass);
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123 ArtifactFactory factory = (ArtifactFactory) cls.newInstance();
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124 factory.setup(document, factoryNode);
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125
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126 productFactories.put(name, factory);
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127 initializeProducts(product);
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128 }
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129 catch (ClassNotFoundException cnfe) {
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130 logger.warn(cnfe, cnfe);
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131 }
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132 catch (InstantiationException ie) {
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133 logger.warn(ie, ie);
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134 }
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135 catch (IllegalAccessException iae) {
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136 logger.warn(iae, iae);
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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 protected void initializeProducts(Node productNode) {
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143 String productName = (String) XMLUtils.xpath(
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144 productNode, "@name", XPathConstants.STRING);
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145
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146 NodeList parameterNodes = (NodeList) XMLUtils.xpath(
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147 productNode, XPATH_PRODUCT_PARAMETER, XPathConstants.NODESET
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148 );
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149
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150 if (parameterNodes != null) {
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151 int items = parameterNodes.getLength();
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152 Collection inputParameter = new ArrayList(items);
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153
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154 for (int j = 0; j < items; j++) {
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155 Node parameterNode = (Node) parameterNodes.item(j);
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156 String name = (String) XMLUtils.xpath(
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157 parameterNode, "@name", XPathConstants.STRING);
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158 String value = (String) XMLUtils.xpath(
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159 parameterNode, "@value", XPathConstants.STRING);
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160
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161 inputParameter.add(new DefaultInputData(name, value));
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162 }
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163
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164 products.put(
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165 productName,
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166 new DefaultProduct(productName, inputParameter, this.name)
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167 );
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168 }
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169 }
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170 }
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