Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/Builder.java @ 1859:755d9763928f
Improved loggin in error case for dc XPath expression resolution.
flys-artifacts/trunk@3208 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 10 Nov 2011 10:12:25 +0000 |
parents | e3eb1ea885a7 |
children | 9144e5a5027b |
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1 package de.intevation.flys.artifacts.datacage.templating; |
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2 |
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3 import java.util.regex.Pattern; |
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4 import java.util.regex.Matcher; |
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5 |
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6 import java.util.Arrays; |
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7 import java.util.ArrayList; |
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8 import java.util.List; |
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9 import java.util.HashMap; |
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10 import java.util.Map; |
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11 import java.util.Deque; |
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12 import java.util.ArrayDeque; |
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13 |
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14 import org.w3c.dom.Document; |
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15 import org.w3c.dom.NodeList; |
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16 import org.w3c.dom.Node; |
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17 import org.w3c.dom.Element; |
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18 |
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19 import javax.xml.xpath.XPath; |
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20 import javax.xml.xpath.XPathFactory; |
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21 import javax.xml.xpath.XPathExpressionException; |
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22 import javax.xml.xpath.XPathConstants; |
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23 |
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24 import java.sql.SQLException; |
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25 import java.sql.Connection; |
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26 |
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27 import de.intevation.artifacts.common.utils.XMLUtils; |
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29 import de.intevation.flys.utils.Pair; |
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30 |
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31 import org.apache.log4j.Logger; |
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32 |
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33 public class Builder |
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34 { |
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35 private static Logger log = Logger.getLogger(Builder.class); |
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36 |
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37 public static final String CONNECTION_USER = "user"; |
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38 public static final String CONNECTION_SYSTEM = "system"; |
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39 public static final String DEFAULT_CONNECTION_NAME = CONNECTION_SYSTEM; |
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40 |
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41 public static final Pattern STRIP_LINE_INDENT = |
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42 Pattern.compile("\\s*\\r?\\n\\s*"); |
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43 |
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44 public static final String DC_NAMESPACE_URI = |
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45 "http://www.intevation.org/2011/Datacage"; |
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46 |
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47 private static final Document EVAL_DOCUMENT = |
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48 XMLUtils.newDocument(); |
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49 |
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50 private static final XPathFactory XPATH_FACTORY = |
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51 XPathFactory.newInstance(); |
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52 |
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53 protected Document template; |
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54 |
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55 protected Map<String, CompiledStatement> compiledStatements; |
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56 |
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57 public static class NamedConnection { |
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58 |
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59 protected String name; |
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60 protected Connection connection; |
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61 protected boolean cached; |
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62 |
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63 public NamedConnection() { |
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64 } |
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65 |
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66 public NamedConnection( |
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67 String name, |
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68 Connection connection |
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69 ) { |
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70 this(name, connection, true); |
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71 } |
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72 |
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73 public NamedConnection( |
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74 String name, |
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75 Connection connection, |
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76 boolean cached |
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77 ) { |
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78 this.name = name; |
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79 this.connection = connection; |
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80 this.cached = cached; |
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81 } |
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82 } // class NamedConnection |
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83 |
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84 |
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85 public class BuildHelper |
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86 { |
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87 protected Node output; |
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88 protected Document owner; |
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89 protected StackFrames frames; |
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90 protected List<NamedConnection> connections; |
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91 protected Map<String, CompiledStatement.Instance> statements; |
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92 protected Deque<Pair<NamedConnection, ResultData>> connectionsStack; |
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93 |
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94 public BuildHelper( |
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95 Node output, |
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96 List<NamedConnection> connections, |
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97 Map<String, Object> parameters |
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98 ) { |
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99 if (connections.isEmpty()) { |
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100 throw new IllegalArgumentException("no connections given."); |
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101 } |
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102 |
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103 this.connections = connections; |
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104 connectionsStack = |
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105 new ArrayDeque<Pair<NamedConnection, ResultData>>(); |
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106 this.output = output; |
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107 frames = new StackFrames(parameters); |
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108 owner = getOwnerDocument(output); |
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109 statements = |
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110 new HashMap<String, CompiledStatement.Instance>(); |
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111 } |
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112 |
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113 public void build() throws SQLException { |
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114 try { |
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115 synchronized (template) { |
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116 for (Node current: rootsToList()) { |
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117 build(output, current); |
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118 } |
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119 } |
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120 } |
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121 finally { |
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122 closeStatements(); |
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123 } |
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124 } |
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125 |
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126 protected void closeStatements() { |
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127 for (CompiledStatement.Instance csi: statements.values()) { |
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128 csi.close(); |
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129 } |
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130 statements.clear(); |
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131 } |
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132 |
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133 protected void context(Node parent, Element current) |
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134 throws SQLException |
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135 { |
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136 log.debug("dc:context"); |
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137 |
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138 NodeList subs = current.getChildNodes(); |
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139 int S = subs.getLength(); |
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140 |
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141 // Check only direct children. |
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142 Node stmntNode = null; |
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143 for (int i = 0; i < S; ++i) { |
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144 Node node = subs.item(i); |
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145 String ns; |
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146 if (node.getNodeType() == Node.ELEMENT_NODE |
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147 && node.getLocalName().equals("statement") |
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148 && (ns = node.getNamespaceURI()) != null |
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149 && ns.equals(DC_NAMESPACE_URI)) { |
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150 stmntNode = node; |
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151 break; |
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152 } |
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153 } |
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154 |
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155 if (stmntNode == null) { |
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156 log.warn("dc:context: cannot find statement"); |
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157 return; |
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158 } |
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159 |
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160 String con = current.getAttribute("connection"); |
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161 |
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162 String stmntText = stmntNode.getTextContent(); |
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163 |
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164 String key = con + "-" + stmntText; |
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165 |
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166 CompiledStatement.Instance csi = statements.get(key); |
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167 |
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168 if (csi == null) { |
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169 CompiledStatement cs = compiledStatements.get(stmntText); |
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170 csi = cs.new Instance(); |
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171 statements.put(key, csi); |
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172 } |
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173 |
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174 NamedConnection connection = connectionsStack.isEmpty() |
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175 ? connections.get(0) |
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176 : connectionsStack.peek().getA(); |
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177 |
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178 if (con.length() > 0) { |
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179 for (NamedConnection nc: connections) { |
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180 if (con.equals(nc.name)) { |
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181 connection = nc; |
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182 break; |
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183 } |
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184 } |
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185 } |
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186 |
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187 ResultData rd = csi.execute( |
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188 connection.connection, |
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189 frames, |
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190 connection.cached); |
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191 |
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192 // only descent if there are results |
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193 if (!rd.isEmpty()) { |
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194 connectionsStack.push(new Pair(connection, rd)); |
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195 try { |
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196 for (int i = 0; i < S; ++i) { |
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197 build(parent, subs.item(i)); |
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198 } |
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199 } |
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200 finally { |
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201 connectionsStack.pop(); |
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202 } |
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203 } |
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204 } |
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205 |
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206 protected void elements(Node parent, Element current) |
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207 throws SQLException |
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208 { |
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209 log.debug("dc:elements"); |
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210 |
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211 if (connectionsStack.isEmpty()) { |
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212 log.warn("dc:elements without having results"); |
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213 return; |
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214 } |
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215 |
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216 NodeList subs = current.getChildNodes(); |
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217 int S = subs.getLength(); |
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218 |
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219 if (S == 0) { |
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220 log.debug("dc:elements has no children"); |
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221 return; |
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222 } |
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223 |
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224 ResultData rd = connectionsStack.peek().getB(); |
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225 |
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226 String [] columns = rd.getColumnLabels(); |
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227 |
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228 //if (log.isDebugEnabled()) { |
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229 // log.debug("pushing vars: " |
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230 // + java.util.Arrays.toString(columns)); |
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231 //} |
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232 |
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233 for (Object [] row: rd.getRows()) { |
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234 frames.enter(); |
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235 try { |
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236 frames.put(columns, row); |
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237 //if (log.isDebugEnabled()) { |
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238 // log.debug("current vars: " + frames.dump()); |
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239 //} |
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240 for (int i = 0; i < S; ++i) { |
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241 build(parent, subs.item(i)); |
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242 } |
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243 } |
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244 finally { |
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245 frames.leave(); |
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246 } |
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247 } |
998
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248 } |
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249 |
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250 protected void element(Node parent, Element current) |
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251 throws SQLException |
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252 { |
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253 String attr = expand(current.getAttribute("name")); |
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254 |
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255 if (log.isDebugEnabled()) { |
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256 log.debug("dc:element -> '" + attr + "'"); |
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257 } |
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258 |
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259 if (attr.length() == 0) { |
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260 log.warn("no name attribute found"); |
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261 return; |
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262 } |
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263 |
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264 Element element = owner.createElement(attr); |
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265 |
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266 NodeList children = current.getChildNodes(); |
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267 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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268 build(element, children.item(i)); |
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269 } |
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270 |
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271 parent.appendChild(element); |
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272 } |
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273 |
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274 protected void text(Node parent, Element current) |
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275 throws SQLException |
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276 { |
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277 log.debug("dc:text"); |
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278 String value = expand(current.getTextContent()); |
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279 parent.appendChild(owner.createTextNode(value)); |
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280 } |
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281 |
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282 |
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283 protected void attribute(Node parent, Element current) { |
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284 |
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285 if (parent.getNodeType() != Node.ELEMENT_NODE) { |
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286 log.warn("need element here"); |
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287 return; |
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288 } |
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289 |
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290 String name = expand(current.getAttribute("name")); |
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291 String value = expand(current.getAttribute("value")); |
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292 |
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293 Element element = (Element)parent; |
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294 |
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295 element.setAttribute(name, value); |
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296 } |
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297 |
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298 protected void callMacro(Node parent, Element current) |
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299 throws SQLException |
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300 { |
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301 String name = current.getAttribute("name"); |
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302 |
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303 if (name.length() == 0) { |
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304 log.warn("missing 'name' attribute in 'call-macro'"); |
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305 return; |
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306 } |
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307 |
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308 NodeList macros = template.getElementsByTagNameNS( |
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309 DC_NAMESPACE_URI, "macro"); |
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310 |
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311 for (int i = 0, N = macros.getLength(); i < N; ++i) { |
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312 Element macro = (Element)macros.item(i); |
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313 if (name.equals(macro.getAttribute("name"))) { |
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314 NodeList subs = macro.getChildNodes(); |
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315 for (int j = 0, M = subs.getLength(); j < M; ++j) { |
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316 build(parent, subs.item(j)); |
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317 } |
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318 return; |
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319 } |
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320 } |
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321 |
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322 log.warn("no macro '" + name + "' found."); |
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323 } |
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324 |
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325 protected void ifClause(Node parent, Element current) |
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326 throws SQLException |
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327 { |
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328 String test = current.getAttribute("test"); |
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329 |
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330 if (test.length() == 0) { |
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331 log.warn("missing 'test' attribute in 'if'"); |
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332 return; |
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333 } |
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334 |
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335 Boolean result = evaluateXPath(test); |
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336 |
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337 if (result != null && result.booleanValue()) { |
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338 NodeList subs = current.getChildNodes(); |
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339 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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340 build(parent, subs.item(i)); |
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341 } |
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342 } |
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343 } |
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344 |
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345 protected void choose(Node parent, Element current) |
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346 throws SQLException |
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347 { |
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348 Node branch = null; |
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349 |
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350 NodeList children = current.getChildNodes(); |
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351 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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352 Node child = children.item(i); |
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353 String ns = child.getNamespaceURI(); |
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354 if (ns == null |
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355 || !ns.equals(DC_NAMESPACE_URI) |
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356 || child.getNodeType() != Node.ELEMENT_NODE |
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357 ) { |
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358 continue; |
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359 } |
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360 String name = child.getLocalName(); |
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361 if ("when".equals(name)) { |
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362 Element when = (Element)child; |
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363 String test = when.getAttribute("test"); |
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364 if (test.length() == 0) { |
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365 log.warn("no 'test' attribute found for when"); |
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366 continue; |
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367 } |
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368 |
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369 Boolean result = evaluateXPath(test); |
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370 if (result != null && result.booleanValue()) { |
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371 branch = child; |
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372 break; |
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373 } |
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374 |
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375 continue; |
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376 } |
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377 else if ("otherwise".equals(name)) { |
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378 branch = child; |
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379 // No break here. |
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380 } |
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381 } |
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382 |
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383 if (branch != null) { |
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384 NodeList subs = branch.getChildNodes(); |
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385 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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386 build(parent, subs.item(i)); |
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387 } |
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388 } |
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389 } |
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390 |
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391 protected Boolean evaluateXPath(String expr) { |
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392 |
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393 if (log.isDebugEnabled()) { |
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394 log.debug("evaluate: '" + expr + "'"); |
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395 } |
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396 |
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397 try { |
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398 XPath xpath = XPATH_FACTORY.newXPath(); |
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399 xpath.setXPathVariableResolver(frames); |
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400 xpath.setXPathFunctionResolver(FunctionResolver.FUNCTIONS); |
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401 Object result = xpath.evaluate( |
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402 expr, EVAL_DOCUMENT, XPathConstants.BOOLEAN); |
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403 |
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404 return result instanceof Boolean |
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405 ? (Boolean)result |
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406 : null; |
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407 } |
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|
408 catch (XPathExpressionException xfce) { |
1859
755d9763928f
Improved loggin in error case for dc XPath expression resolution.
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1818
diff
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|
409 log.error("expression: " + expr, xfce); |
998
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410 } |
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411 return null; |
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412 } |
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413 |
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|
414 protected void convert(Node parent, Element current) { |
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415 |
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|
416 String variable = expand(current.getAttribute("var")); |
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|
417 String type = expand(current.getAttribute("type")); |
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|
418 |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
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|
419 Object [] result = new Object[1]; |
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flys/issue314: Variables in datacage are now case insensitive.
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parents:
1029
diff
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|
420 |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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|
421 if (frames.getStore(variable, result)) { |
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|
422 Object object = TypeConverter.convert(result[0], type); |
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|
423 frames.put(variable.toUpperCase(), object); |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
424 } |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
425 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
426 |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
427 protected String expand(String s) { |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
428 Matcher m = CompiledStatement.VAR.matcher(s); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
429 |
1716
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flys/issue314: Variables in datacage are now case insensitive.
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|
430 Object [] result = new Object[1]; |
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flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
431 |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
432 StringBuffer sb = new StringBuffer(); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
433 while (m.find()) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
434 String key = m.group(1); |
1716
3ca999f507b7
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parents:
1029
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changeset
|
435 result[0] = null; |
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flys/issue314: Variables in datacage are now case insensitive.
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parents:
1029
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changeset
|
436 if (frames.getStore(key, result)) { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
437 m.appendReplacement( |
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flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
438 sb, result[0] != null ? result[0].toString() : ""); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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parents:
1029
diff
changeset
|
439 } |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
440 else { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
441 m.appendReplacement(sb, "\\${" + key + "}"); |
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flys/issue314: Variables in datacage are now case insensitive.
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parents:
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|
442 } |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
443 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
444 m.appendTail(sb); |
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Datacage: Moved templating in a better suited package.
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parents:
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445 return sb.toString(); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
446 } |
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Datacage: Moved templating in a better suited package.
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parents:
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|
447 |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
448 protected void build(Node parent, Node current) |
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Datacage: Moved templating in a better suited package.
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parents:
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449 throws SQLException |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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450 { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
451 String ns = current.getNamespaceURI(); |
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Datacage: Moved templating in a better suited package.
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parents:
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|
452 if (ns != null && ns.equals(DC_NAMESPACE_URI)) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
453 if (current.getNodeType() != Node.ELEMENT_NODE) { |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
454 log.warn("need elements here"); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
455 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
456 else { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
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|
457 String localName = current.getLocalName(); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
458 if ("attribute".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
459 attribute(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
460 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
461 else if ("context".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
462 context(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
463 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
464 else if ("if".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
465 ifClause(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
466 } |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
467 else if ("choose".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
468 choose(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
469 } |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
470 else if ("call-macro".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
471 callMacro(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
472 } |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
473 else if ("macro".equals(localName)) { |
1029
3f3988bb6284
Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1023
diff
changeset
|
474 // Simply ignore the definition. |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
475 } |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
476 else if ("element".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
477 element(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
478 } |
1023
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
479 else if ("elements".equals(localName)) { |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
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|
480 elements(parent, (Element)current); |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
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parents:
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changeset
|
481 } |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
482 else if ("text".equals(localName)) { |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
483 text(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
484 } |
1023
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
485 else if ("comment".equals(localName) |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
486 || "statement".equals(localName)) { |
5cb84ceee2a0
Datacage: Templates now can nest <dc:elements> into other elements in the body of <dc:context>
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
487 // ignore comments and statements in output |
1017
8637756275e5
Added a <dc:comment> tag to place comments in the meta data templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1015
diff
changeset
|
488 } |
998
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
489 else if ("convert".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
490 convert(parent, (Element)current); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
491 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
492 else { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
493 log.warn("unknown '" + localName + "' -> ignore"); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
494 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
495 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
496 return; |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
497 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
498 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
499 if (current.getNodeType() == Node.TEXT_NODE) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
500 String txt = current.getNodeValue(); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
501 if (txt != null && txt.trim().length() == 0) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
502 return; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
503 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
504 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
505 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
506 Node copy = owner.importNode(current, false); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
507 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
508 NodeList children = current.getChildNodes(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
509 for (int i = 0, N = children.getLength(); i < N; ++i) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
510 build(copy, children.item(i)); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
511 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
512 parent.appendChild(copy); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
513 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
514 } // class BuildHelper |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
515 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
516 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
517 public Builder() { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
518 compiledStatements = new HashMap<String, CompiledStatement>(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
519 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
520 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
521 public Builder(Document template) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
522 this(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
523 this.template = template; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
524 compileStatements(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
525 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
526 |
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527 protected void compileStatements() { |
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528 |
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529 NodeList nodes = template.getElementsByTagNameNS( |
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530 DC_NAMESPACE_URI, "statement"); |
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Datacage: Moved templating in a better suited package.
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531 |
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532 for (int i = 0, N = nodes.getLength(); i < N; ++i) { |
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533 Element stmntElement = (Element)nodes.item(i); |
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534 String stmnt = trimStatement(stmntElement.getTextContent()); |
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535 if (stmnt == null || stmnt.length() == 0) { |
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536 throw new IllegalArgumentException("found empty statement"); |
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537 } |
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538 CompiledStatement cs = new CompiledStatement(stmnt); |
1029
3f3988bb6284
Picky Cosmetics.
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539 // For faster lookup store a shortend string into the template. |
998
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540 stmnt = "s" + i; |
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541 stmntElement.setTextContent(stmnt); |
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542 compiledStatements.put(stmnt, cs); |
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543 } |
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544 } |
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545 |
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546 protected List<Node> rootsToList() { |
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547 |
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548 NodeList roots = template.getElementsByTagNameNS( |
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549 DC_NAMESPACE_URI, "template"); |
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550 |
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551 List<Node> elements = new ArrayList<Node>(); |
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552 |
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553 for (int i = 0, N = roots.getLength(); i < N; ++i) { |
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554 NodeList rootChildren = roots.item(i).getChildNodes(); |
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555 for (int j = 0, M = rootChildren.getLength(); j < M; ++j) { |
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556 Node child = rootChildren.item(j); |
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557 if (child.getNodeType() == Node.ELEMENT_NODE) { |
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558 elements.add(child); |
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559 } |
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Datacage: Moved templating in a better suited package.
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560 } |
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561 } |
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562 |
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563 return elements; |
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564 } |
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565 |
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566 protected static final String trimStatement(String stmnt) { |
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567 if (stmnt == null) return null; |
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568 //XXX: Maybe a bit to radical for multiline strings? |
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569 return STRIP_LINE_INDENT.matcher(stmnt.trim()).replaceAll(" "); |
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570 } |
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571 |
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572 protected static Document getOwnerDocument(Node node) { |
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573 Document document = node.getOwnerDocument(); |
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574 return document != null ? document : (Document)node; |
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575 } |
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576 |
1011
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577 private static final List<NamedConnection> wrap(Connection connection) { |
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578 List<NamedConnection> list = new ArrayList<NamedConnection>(1); |
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Bring user specific meta data service to life.
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579 list.add(new NamedConnection(DEFAULT_CONNECTION_NAME, connection)); |
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580 return list; |
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581 } |
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582 |
998
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583 public void build( |
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584 Connection connection, |
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585 Node output, |
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586 Map<String, Object> parameters |
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587 ) |
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588 throws SQLException |
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589 { |
1011
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590 build(wrap(connection), output, parameters); |
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parents:
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|
591 } |
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592 |
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parents:
998
diff
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|
593 public void build( |
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|
594 List<NamedConnection> connections, |
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|
595 Node output, |
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diff
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|
596 Map<String, Object> parameters |
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|
597 ) |
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parents:
998
diff
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|
598 throws SQLException |
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Added support for more than one db connection in datacage templating.
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599 { |
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parents:
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diff
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|
600 BuildHelper helper = new BuildHelper(output, connections, parameters); |
998
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
601 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
602 helper.build(); |
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|
603 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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604 } |
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Datacage: Moved templating in a better suited package.
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605 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |