Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/Builder.java @ 4010:efb067ab2ca4
Added TODOs for issue880.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 01 Oct 2012 10:57:21 +0200 |
parents | 64a59cca1887 |
children | 58bdf95df5e4 |
rev | line source |
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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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28 |
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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 /** |
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134 * Handle a \<context\> node. |
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135 */ |
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136 protected void context(Node parent, Element current) |
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137 throws SQLException |
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138 { |
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139 log.debug("dc:context"); |
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140 |
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141 NodeList subs = current.getChildNodes(); |
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142 int S = subs.getLength(); |
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143 |
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144 // Check only direct children. |
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145 Node stmntNode = null; |
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146 for (int i = 0; i < S; ++i) { |
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147 Node node = subs.item(i); |
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148 String ns; |
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149 if (node.getNodeType() == Node.ELEMENT_NODE |
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150 && node.getLocalName().equals("statement") |
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151 && (ns = node.getNamespaceURI()) != null |
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152 && ns.equals(DC_NAMESPACE_URI)) { |
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153 stmntNode = node; |
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154 break; |
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155 } |
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156 } |
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157 |
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158 if (stmntNode == null) { |
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159 log.warn("dc:context: cannot find statement"); |
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160 return; |
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161 } |
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162 |
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163 String stmntText = stmntNode.getTextContent(); |
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164 |
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165 String con = current.getAttribute("connection"); |
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166 |
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167 String key = con + "-" + stmntText; |
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168 |
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169 CompiledStatement.Instance csi = statements.get(key); |
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170 |
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171 if (csi == null) { |
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172 CompiledStatement cs = compiledStatements.get(stmntText); |
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173 csi = cs.new Instance(); |
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174 statements.put(key, csi); |
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175 } |
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176 |
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177 NamedConnection connection = connectionsStack.isEmpty() |
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178 ? connections.get(0) |
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179 : connectionsStack.peek().getA(); |
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180 |
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181 if (con.length() > 0) { |
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182 for (NamedConnection nc: connections) { |
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183 if (con.equals(nc.name)) { |
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184 connection = nc; |
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185 break; |
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186 } |
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187 } |
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188 } |
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189 |
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190 ResultData rd = csi.execute( |
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191 connection.connection, |
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192 frames, |
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193 connection.cached); |
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194 |
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195 // only descent if there are results |
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196 if (!rd.isEmpty()) { |
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197 connectionsStack.push(new Pair(connection, rd)); |
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198 try { |
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199 for (int i = 0; i < S; ++i) { |
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200 build(parent, subs.item(i)); |
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201 } |
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202 } |
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203 finally { |
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204 connectionsStack.pop(); |
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205 } |
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206 } |
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207 } |
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208 |
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209 /** |
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210 * Kind of foreach over results of a statement within a context. |
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211 */ |
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212 protected void elements(Node parent, Element current) |
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213 throws SQLException |
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214 { |
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215 log.debug("dc:elements"); |
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216 |
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217 if (connectionsStack.isEmpty()) { |
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218 log.warn("dc:elements without having results"); |
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219 return; |
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220 } |
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221 |
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222 NodeList subs = current.getChildNodes(); |
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223 int S = subs.getLength(); |
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224 |
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225 if (S == 0) { |
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226 log.debug("dc:elements has no children"); |
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227 return; |
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228 } |
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229 |
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230 ResultData rd = connectionsStack.peek().getB(); |
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231 |
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232 String [] columns = rd.getColumnLabels(); |
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233 |
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234 //if (log.isDebugEnabled()) { |
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235 // log.debug("pushing vars: " |
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236 // + java.util.Arrays.toString(columns)); |
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237 //} |
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238 |
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239 for (Object [] row: rd.getRows()) { |
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240 frames.enter(); |
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241 try { |
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242 frames.put(columns, row); |
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243 //if (log.isDebugEnabled()) { |
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244 // log.debug("current vars: " + frames.dump()); |
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245 //} |
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246 for (int i = 0; i < S; ++i) { |
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247 build(parent, subs.item(i)); |
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248 } |
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249 } |
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250 finally { |
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251 frames.leave(); |
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252 } |
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253 } |
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254 } |
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255 |
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256 /** |
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257 * Create element. |
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258 */ |
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259 protected void element(Node parent, Element current) |
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260 throws SQLException |
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261 { |
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262 String attr = expand(current.getAttribute("name")); |
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263 |
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264 if (log.isDebugEnabled()) { |
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265 log.debug("dc:element -> '" + attr + "'"); |
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266 } |
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267 |
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268 if (attr.length() == 0) { |
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269 log.warn("no name attribute found"); |
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270 return; |
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271 } |
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272 |
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273 Element element = owner.createElement(attr); |
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274 |
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275 NodeList children = current.getChildNodes(); |
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276 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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277 build(element, children.item(i)); |
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278 } |
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279 |
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280 parent.appendChild(element); |
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281 } |
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282 |
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283 protected void text(Node parent, Element current) |
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284 throws SQLException |
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285 { |
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286 log.debug("dc:text"); |
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287 String value = expand(current.getTextContent()); |
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288 parent.appendChild(owner.createTextNode(value)); |
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289 } |
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290 |
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291 /** |
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292 * Add attribute to an element |
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293 * @see Element |
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294 */ |
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295 protected void attribute(Node parent, Element current) { |
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296 |
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297 if (parent.getNodeType() != Node.ELEMENT_NODE) { |
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298 log.warn("need element here"); |
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299 return; |
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300 } |
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301 |
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302 String name = expand(current.getAttribute("name")); |
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303 String value = expand(current.getAttribute("value")); |
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304 |
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305 Element element = (Element)parent; |
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306 |
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307 element.setAttribute(name, value); |
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308 } |
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309 |
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310 protected void callMacro(Node parent, Element current) |
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311 throws SQLException |
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312 { |
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313 String name = current.getAttribute("name"); |
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314 |
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315 if (name.length() == 0) { |
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316 log.warn("missing 'name' attribute in 'call-macro'"); |
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317 return; |
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318 } |
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319 |
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320 NodeList macros = template.getElementsByTagNameNS( |
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321 DC_NAMESPACE_URI, "macro"); |
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322 |
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323 for (int i = 0, N = macros.getLength(); i < N; ++i) { |
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324 Element macro = (Element) macros.item(i); |
998
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325 if (name.equals(macro.getAttribute("name"))) { |
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326 NodeList subs = macro.getChildNodes(); |
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327 for (int j = 0, M = subs.getLength(); j < M; ++j) { |
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328 build(parent, subs.item(j)); |
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329 } |
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330 return; |
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331 } |
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332 } |
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333 |
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334 log.warn("no macro '" + name + "' found."); |
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335 } |
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336 |
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337 protected void ifClause(Node parent, Element current) |
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338 throws SQLException |
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339 { |
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340 String test = current.getAttribute("test"); |
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341 |
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342 if (test.length() == 0) { |
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343 log.warn("missing 'test' attribute in 'if'"); |
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344 return; |
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345 } |
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346 |
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347 Boolean result = evaluateXPath(test); |
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348 |
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349 if (result != null && result.booleanValue()) { |
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350 NodeList subs = current.getChildNodes(); |
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351 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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352 build(parent, subs.item(i)); |
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353 } |
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354 } |
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355 } |
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356 |
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357 protected void choose(Node parent, Element current) |
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358 throws SQLException |
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359 { |
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360 Node branch = null; |
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361 |
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362 NodeList children = current.getChildNodes(); |
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363 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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364 Node child = children.item(i); |
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365 String ns = child.getNamespaceURI(); |
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366 if (ns == null |
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367 || !ns.equals(DC_NAMESPACE_URI) |
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368 || child.getNodeType() != Node.ELEMENT_NODE |
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369 ) { |
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370 continue; |
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371 } |
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372 String name = child.getLocalName(); |
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373 if ("when".equals(name)) { |
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374 Element when = (Element)child; |
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375 String test = when.getAttribute("test"); |
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376 if (test.length() == 0) { |
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377 log.warn("no 'test' attribute found for when"); |
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378 continue; |
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379 } |
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380 |
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381 Boolean result = evaluateXPath(test); |
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382 if (result != null && result.booleanValue()) { |
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383 branch = child; |
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384 break; |
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385 } |
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386 |
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387 continue; |
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388 } |
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389 else if ("otherwise".equals(name)) { |
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390 branch = child; |
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391 // No break here. |
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392 } |
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393 } |
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394 |
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395 if (branch != null) { |
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396 NodeList subs = branch.getChildNodes(); |
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397 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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398 build(parent, subs.item(i)); |
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399 } |
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400 } |
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401 } |
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402 |
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403 protected Boolean evaluateXPath(String expr) { |
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404 |
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405 if (log.isDebugEnabled()) { |
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406 log.debug("evaluate: '" + expr + "'"); |
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407 } |
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408 |
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409 try { |
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410 XPath xpath = XPATH_FACTORY.newXPath(); |
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|
411 xpath.setXPathVariableResolver(frames); |
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412 xpath.setXPathFunctionResolver(FunctionResolver.FUNCTIONS); |
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413 Object result = xpath.evaluate( |
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414 expr, EVAL_DOCUMENT, XPathConstants.BOOLEAN); |
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415 |
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416 return result instanceof Boolean |
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417 ? (Boolean)result |
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418 : null; |
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419 } |
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|
420 catch (XPathExpressionException xfce) { |
1859
755d9763928f
Improved loggin in error case for dc XPath expression resolution.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1818
diff
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|
421 log.error("expression: " + expr, xfce); |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
422 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
423 return null; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
424 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
425 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
426 protected void convert(Node parent, Element current) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
427 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
428 String variable = expand(current.getAttribute("var")); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
429 String type = expand(current.getAttribute("type")); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
430 |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
431 Object [] result = new Object[1]; |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
432 |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
433 if (frames.getStore(variable, result)) { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
434 Object object = TypeConverter.convert(result[0], type); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
435 frames.put(variable.toUpperCase(), object); |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
436 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
437 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
438 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
439 protected String expand(String s) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
440 Matcher m = CompiledStatement.VAR.matcher(s); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
441 |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
442 Object [] result = new Object[1]; |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
443 |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
444 StringBuffer sb = new StringBuffer(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
445 while (m.find()) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
446 String key = m.group(1); |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
447 result[0] = null; |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
448 if (frames.getStore(key, result)) { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
449 m.appendReplacement( |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
450 sb, result[0] != null ? result[0].toString() : ""); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
451 } |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
452 else { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
453 m.appendReplacement(sb, "\\${" + key + "}"); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1029
diff
changeset
|
454 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
455 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
456 m.appendTail(sb); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
457 return sb.toString(); |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
458 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
459 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
460 protected void build(Node parent, Node current) |
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Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
461 throws SQLException |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
462 { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
463 String ns = current.getNamespaceURI(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
464 if (ns != null && ns.equals(DC_NAMESPACE_URI)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
465 if (current.getNodeType() != Node.ELEMENT_NODE) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
466 log.warn("need elements here"); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
467 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
468 else { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
469 String localName = current.getLocalName(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
470 if ("attribute".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
471 attribute(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
472 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
473 else if ("context".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
474 context(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
475 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
476 else if ("if".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
477 ifClause(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
478 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
479 else if ("choose".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
480 choose(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
481 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
482 else if ("call-macro".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
483 callMacro(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
484 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
485 else if ("macro".equals(localName)) { |
1029
3f3988bb6284
Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1023
diff
changeset
|
486 // Simply ignore the definition. |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
487 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
488 else if ("element".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
489 element(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
490 } |
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
|
491 else if ("elements".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
|
492 elements(parent, (Element)current); |
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
|
493 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
494 else if ("text".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
495 text(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
496 } |
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
|
497 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
|
498 || "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
|
499 // 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
|
500 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
501 else if ("convert".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
502 convert(parent, (Element)current); |
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 else { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
505 log.warn("unknown '" + localName + "' -> ignore"); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
506 } |
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 return; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
509 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
510 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
511 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
|
512 String txt = current.getNodeValue(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
513 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
|
514 return; |
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 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
518 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
|
519 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
520 NodeList children = current.getChildNodes(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
521 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
|
522 build(copy, children.item(i)); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
523 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
524 parent.appendChild(copy); |
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 } // class BuildHelper |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
527 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
528 |
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529 public Builder() { |
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530 compiledStatements = new HashMap<String, CompiledStatement>(); |
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531 } |
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532 |
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533 public Builder(Document template) { |
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534 this(); |
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535 this.template = template; |
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536 compileStatements(); |
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537 } |
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538 |
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539 protected void compileStatements() { |
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540 |
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541 NodeList nodes = template.getElementsByTagNameNS( |
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542 DC_NAMESPACE_URI, "statement"); |
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543 |
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544 for (int i = 0, N = nodes.getLength(); i < N; ++i) { |
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545 Element stmntElement = (Element)nodes.item(i); |
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546 String stmnt = trimStatement(stmntElement.getTextContent()); |
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547 if (stmnt == null || stmnt.length() == 0) { |
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548 throw new IllegalArgumentException("found empty statement"); |
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549 } |
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550 CompiledStatement cs = new CompiledStatement(stmnt); |
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3f3988bb6284
Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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551 // For faster lookup store a shortend string into the template. |
998
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552 stmnt = "s" + i; |
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553 stmntElement.setTextContent(stmnt); |
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554 compiledStatements.put(stmnt, cs); |
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555 } |
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556 } |
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557 |
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558 protected List<Node> rootsToList() { |
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559 |
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560 NodeList roots = template.getElementsByTagNameNS( |
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561 DC_NAMESPACE_URI, "template"); |
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562 |
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563 List<Node> elements = new ArrayList<Node>(); |
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564 |
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565 for (int i = 0, N = roots.getLength(); i < N; ++i) { |
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566 NodeList rootChildren = roots.item(i).getChildNodes(); |
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567 for (int j = 0, M = rootChildren.getLength(); j < M; ++j) { |
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568 Node child = rootChildren.item(j); |
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569 if (child.getNodeType() == Node.ELEMENT_NODE) { |
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570 elements.add(child); |
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571 } |
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572 } |
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573 } |
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574 |
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575 return elements; |
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576 } |
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577 |
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578 protected static final String trimStatement(String stmnt) { |
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579 if (stmnt == null) return null; |
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580 //XXX: Maybe a bit to radical for multiline strings? |
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581 return STRIP_LINE_INDENT.matcher(stmnt.trim()).replaceAll(" "); |
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582 } |
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583 |
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584 protected static Document getOwnerDocument(Node node) { |
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585 Document document = node.getOwnerDocument(); |
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586 return document != null ? document : (Document)node; |
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587 } |
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Datacage: Moved templating in a better suited package.
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588 |
1011
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589 private static final List<NamedConnection> wrap(Connection connection) { |
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590 List<NamedConnection> list = new ArrayList<NamedConnection>(1); |
1015
9a1a3080ad98
Bring user specific meta data service to life.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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591 list.add(new NamedConnection(DEFAULT_CONNECTION_NAME, connection)); |
1011
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592 return list; |
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593 } |
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parents:
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diff
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594 |
998
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595 public void build( |
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596 Connection connection, |
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597 Node output, |
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Datacage: Moved templating in a better suited package.
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598 Map<String, Object> parameters |
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599 ) |
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Datacage: Moved templating in a better suited package.
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600 throws SQLException |
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601 { |
1011
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|
602 build(wrap(connection), output, parameters); |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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diff
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603 } |
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Added support for more than one db connection in datacage templating.
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diff
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|
604 |
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Added support for more than one db connection in datacage templating.
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parents:
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diff
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|
605 public void build( |
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parents:
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diff
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606 List<NamedConnection> connections, |
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607 Node output, |
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608 Map<String, Object> parameters |
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diff
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|
609 ) |
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610 throws SQLException |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
611 { |
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612 BuildHelper helper = new BuildHelper(output, connections, parameters); |
998
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Datacage: Moved templating in a better suited package.
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diff
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|
613 |
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614 helper.build(); |
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|
615 } |
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Datacage: Moved templating in a better suited package.
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|
616 } |
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617 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |