Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/Builder.java @ 4891:089bc08f720e
Builder: Doc.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 28 Jan 2013 10:50:58 +0100 |
parents | bf38ea4cb0f7 |
children | 54762b8ef016 |
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1 package de.intevation.flys.artifacts.datacage.templating; |
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2 |
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3 import de.intevation.artifacts.common.utils.XMLUtils; |
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5 import de.intevation.flys.utils.Pair; |
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6 |
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7 import java.sql.Connection; |
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8 import java.sql.SQLException; |
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9 |
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10 import java.util.ArrayDeque; |
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11 import java.util.ArrayList; |
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12 import java.util.Deque; |
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13 import java.util.HashMap; |
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14 import java.util.List; |
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15 import java.util.Map; |
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16 |
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17 import java.util.regex.Matcher; |
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18 import java.util.regex.Pattern; |
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19 |
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20 import javax.xml.namespace.QName; |
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21 |
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22 import javax.xml.xpath.XPath; |
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23 import javax.xml.xpath.XPathConstants; |
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24 import javax.xml.xpath.XPathExpressionException; |
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25 import javax.xml.xpath.XPathFactory; |
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26 |
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27 import org.apache.log4j.Logger; |
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29 import org.w3c.dom.Document; |
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30 import org.w3c.dom.Element; |
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31 import org.w3c.dom.Node; |
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32 import org.w3c.dom.NodeList; |
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33 |
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34 |
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35 public class Builder |
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36 { |
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37 private static Logger log = Logger.getLogger(Builder.class); |
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38 |
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39 public static final String CONNECTION_USER = "user"; |
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40 public static final String CONNECTION_SYSTEM = "system"; |
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41 public static final String DEFAULT_CONNECTION_NAME = CONNECTION_SYSTEM; |
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42 |
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43 public static final Pattern STRIP_LINE_INDENT = |
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44 Pattern.compile("\\s*\\r?\\n\\s*"); |
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45 |
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46 public static final String DC_NAMESPACE_URI = |
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47 "http://www.intevation.org/2011/Datacage"; |
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48 |
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49 private static final Document EVAL_DOCUMENT = |
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50 XMLUtils.newDocument(); |
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51 |
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52 private static final XPathFactory XPATH_FACTORY = |
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53 XPathFactory.newInstance(); |
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54 |
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55 protected Document template; |
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56 |
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57 protected Map<String, CompiledStatement> compiledStatements; |
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58 |
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59 /** Connection to either of the databases. */ |
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60 public static class NamedConnection { |
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61 |
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62 protected String name; |
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63 protected Connection connection; |
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64 protected boolean cached; |
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65 |
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66 public NamedConnection() { |
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67 } |
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68 |
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69 public NamedConnection( |
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70 String name, |
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71 Connection connection |
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72 ) { |
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73 this(name, connection, true); |
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74 } |
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75 |
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76 public NamedConnection( |
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77 String name, |
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78 Connection connection, |
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79 boolean cached |
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80 ) { |
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81 this.name = name; |
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82 this.connection = connection; |
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83 this.cached = cached; |
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84 } |
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85 } // class NamedConnection |
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86 |
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87 public class BuildHelper |
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88 { |
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89 protected Node output; |
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90 protected Document owner; |
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91 protected StackFrames frames; |
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92 protected List<NamedConnection> connections; |
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93 protected Map<String, CompiledStatement.Instance> statements; |
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94 protected Deque<Pair<NamedConnection, ResultData>> connectionsStack; |
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95 protected Deque<NodeList> macroBodies; |
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96 |
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97 public BuildHelper( |
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98 Node output, |
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99 List<NamedConnection> connections, |
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100 Map<String, Object> parameters |
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101 ) { |
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102 if (connections.isEmpty()) { |
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103 throw new IllegalArgumentException("no connections given."); |
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104 } |
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105 |
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106 this.connections = connections; |
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107 connectionsStack = |
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108 new ArrayDeque<Pair<NamedConnection, ResultData>>(); |
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109 this.output = output; |
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110 frames = new StackFrames(parameters); |
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111 owner = getOwnerDocument(output); |
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112 statements = |
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113 new HashMap<String, CompiledStatement.Instance>(); |
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114 macroBodies = new ArrayDeque<NodeList>(); |
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115 } |
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116 |
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117 public void build() throws SQLException { |
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118 try { |
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119 synchronized (template) { |
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120 for (Node current: rootsToList()) { |
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121 build(output, current); |
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122 } |
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123 } |
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124 } |
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125 finally { |
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126 closeStatements(); |
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127 } |
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128 } |
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129 |
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130 protected void closeStatements() { |
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131 for (CompiledStatement.Instance csi: statements.values()) { |
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132 csi.close(); |
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133 } |
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134 statements.clear(); |
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135 } |
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136 |
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137 /** |
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138 * Handle a \<context\> node. |
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139 */ |
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140 protected void context(Node parent, Element current) |
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141 throws SQLException |
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142 { |
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143 log.debug("dc:context"); |
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144 |
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145 NodeList subs = current.getChildNodes(); |
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146 int S = subs.getLength(); |
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147 |
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148 // Check only direct children. |
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149 Node stmntNode = null; |
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150 for (int i = 0; i < S; ++i) { |
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151 Node node = subs.item(i); |
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152 String ns; |
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153 if (node.getNodeType() == Node.ELEMENT_NODE |
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154 && node.getLocalName().equals("statement") |
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155 && (ns = node.getNamespaceURI()) != null |
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156 && ns.equals(DC_NAMESPACE_URI)) { |
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157 stmntNode = node; |
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158 break; |
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159 } |
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160 } |
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161 |
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162 if (stmntNode == null) { |
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163 log.warn("dc:context: cannot find statement"); |
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164 return; |
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165 } |
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166 |
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167 String stmntText = stmntNode.getTextContent(); |
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168 |
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169 String con = current.getAttribute("connection"); |
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170 |
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171 String key = con + "-" + stmntText; |
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172 |
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173 CompiledStatement.Instance csi = statements.get(key); |
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174 |
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175 if (csi == null) { |
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176 CompiledStatement cs = compiledStatements.get(stmntText); |
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177 csi = cs.new Instance(); |
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178 statements.put(key, csi); |
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179 } |
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180 |
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181 NamedConnection connection = connectionsStack.isEmpty() |
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182 ? connections.get(0) |
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183 : connectionsStack.peek().getA(); |
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184 |
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185 if (con.length() > 0) { |
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186 for (NamedConnection nc: connections) { |
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187 if (con.equals(nc.name)) { |
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188 connection = nc; |
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189 break; |
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190 } |
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191 } |
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192 } |
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193 |
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194 ResultData rd = csi.execute( |
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195 connection.connection, |
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196 frames, |
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197 connection.cached); |
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198 |
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199 // only descent if there are results |
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200 if (!rd.isEmpty()) { |
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201 connectionsStack.push( |
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202 new Pair<NamedConnection, ResultData>(connection, rd)); |
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203 try { |
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204 for (int i = 0; i < S; ++i) { |
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205 build(parent, subs.item(i)); |
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206 } |
998
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207 } |
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208 finally { |
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209 connectionsStack.pop(); |
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210 } |
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211 } |
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212 } |
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213 |
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214 /** |
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215 * Kind of foreach over results of a statement within a context. |
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216 */ |
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217 protected void elements(Node parent, Element current) |
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218 throws SQLException |
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219 { |
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220 log.debug("dc:elements"); |
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221 |
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222 if (connectionsStack.isEmpty()) { |
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223 log.warn("dc:elements without having results"); |
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224 return; |
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225 } |
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226 |
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227 NodeList subs = current.getChildNodes(); |
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228 int S = subs.getLength(); |
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229 |
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230 if (S == 0) { |
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231 log.debug("dc:elements has no children"); |
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232 return; |
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233 } |
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234 |
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235 ResultData rd = connectionsStack.peek().getB(); |
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236 |
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237 String [] columns = rd.getColumnLabels(); |
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238 |
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239 //if (log.isDebugEnabled()) { |
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240 // log.debug("pushing vars: " |
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241 // + java.util.Arrays.toString(columns)); |
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242 //} |
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243 |
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244 for (Object [] row: rd.getRows()) { |
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245 frames.enter(); |
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246 try { |
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247 frames.put(columns, row); |
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248 //if (log.isDebugEnabled()) { |
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249 // log.debug("current vars: " + frames.dump()); |
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250 //} |
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251 for (int i = 0; i < S; ++i) { |
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252 build(parent, subs.item(i)); |
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253 } |
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254 } |
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255 finally { |
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256 frames.leave(); |
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257 } |
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258 } |
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259 } |
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260 |
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261 /** |
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262 * Create element. |
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263 */ |
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264 protected void element(Node parent, Element current) |
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265 throws SQLException |
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266 { |
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267 String attr = expand(current.getAttribute("name")); |
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268 |
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269 if (log.isDebugEnabled()) { |
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270 log.debug("dc:element -> '" + attr + "'"); |
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271 } |
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272 |
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273 if (attr.length() == 0) { |
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274 log.warn("no name attribute found"); |
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275 return; |
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276 } |
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277 |
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278 Element element = owner.createElement(attr); |
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279 |
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280 NodeList children = current.getChildNodes(); |
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281 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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282 build(element, children.item(i)); |
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283 } |
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284 |
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285 parent.appendChild(element); |
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286 } |
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287 |
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288 protected void text(Node parent, Element current) |
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289 throws SQLException |
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290 { |
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291 log.debug("dc:text"); |
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292 String value = expand(current.getTextContent()); |
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293 parent.appendChild(owner.createTextNode(value)); |
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294 } |
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295 |
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296 /** |
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297 * Add attribute to an element |
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298 * @see Element |
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299 */ |
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300 protected void attribute(Node parent, Element current) { |
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301 |
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302 if (parent.getNodeType() != Node.ELEMENT_NODE) { |
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303 log.warn("need element here"); |
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304 return; |
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305 } |
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306 |
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307 String name = expand(current.getAttribute("name")); |
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308 String value = expand(current.getAttribute("value")); |
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309 |
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310 Element element = (Element)parent; |
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311 |
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312 element.setAttribute(name, value); |
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313 } |
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314 |
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315 protected void callMacro(Node parent, Element current) |
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316 throws SQLException |
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317 { |
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318 String name = current.getAttribute("name"); |
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319 |
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320 if (name.length() == 0) { |
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321 log.warn("missing 'name' attribute in 'call-macro'"); |
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322 return; |
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323 } |
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324 |
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325 NodeList macros = template.getElementsByTagNameNS( |
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326 DC_NAMESPACE_URI, "macro"); |
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327 |
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328 Element macro = null; |
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329 |
998
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330 for (int i = 0, N = macros.getLength(); i < N; ++i) { |
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331 Element m = (Element) macros.item(i); |
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332 if (name.equals(m.getAttribute("name"))) { |
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333 macro = m; |
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334 break; |
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335 } |
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336 } |
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337 |
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338 if (macro != null) { |
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339 macroBodies.push(current.getChildNodes()); |
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340 try { |
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341 NodeList subs = macro.getChildNodes(); |
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342 for (int j = 0, M = subs.getLength(); j < M; ++j) { |
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343 build(parent, subs.item(j)); |
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344 } |
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345 } |
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346 finally { |
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347 macroBodies.pop(); |
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348 } |
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349 } |
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350 else { |
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351 log.warn("no macro '" + name + "' found."); |
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352 } |
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353 } |
998
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354 |
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355 protected void macroBody(Node parent, Element current) |
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356 throws SQLException |
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357 { |
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358 if (!macroBodies.isEmpty()) { |
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359 NodeList children = macroBodies.peek(); |
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360 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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361 build(parent, children.item(i)); |
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362 } |
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363 } |
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364 else { |
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365 log.warn("no current macro"); |
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366 } |
998
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367 } |
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368 |
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369 protected void ifClause(Node parent, Element current) |
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370 throws SQLException |
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371 { |
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372 String test = current.getAttribute("test"); |
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373 |
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374 if (test.length() == 0) { |
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375 log.warn("missing 'test' attribute in 'if'"); |
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376 return; |
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377 } |
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378 |
4737
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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379 Boolean result = evaluateXPathToBoolean(test); |
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380 |
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381 if (result != null && result.booleanValue()) { |
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382 NodeList subs = current.getChildNodes(); |
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383 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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384 build(parent, subs.item(i)); |
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385 } |
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386 } |
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387 } |
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388 |
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389 protected void choose(Node parent, Element current) |
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390 throws SQLException |
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391 { |
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392 Node branch = null; |
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393 |
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394 NodeList children = current.getChildNodes(); |
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395 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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396 Node child = children.item(i); |
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397 String ns = child.getNamespaceURI(); |
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398 if (ns == null |
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399 || !ns.equals(DC_NAMESPACE_URI) |
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400 || child.getNodeType() != Node.ELEMENT_NODE |
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401 ) { |
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402 continue; |
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403 } |
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404 String name = child.getLocalName(); |
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405 if ("when".equals(name)) { |
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406 Element when = (Element)child; |
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407 String test = when.getAttribute("test"); |
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|
408 if (test.length() == 0) { |
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409 log.warn("no 'test' attribute found for when"); |
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Datacage: Moved templating in a better suited package.
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410 continue; |
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411 } |
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Datacage: Moved templating in a better suited package.
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412 |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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413 Boolean result = evaluateXPathToBoolean(test); |
998
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Datacage: Moved templating in a better suited package.
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414 if (result != null && result.booleanValue()) { |
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Datacage: Moved templating in a better suited package.
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parents:
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415 branch = child; |
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Datacage: Moved templating in a better suited package.
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416 break; |
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Datacage: Moved templating in a better suited package.
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417 } |
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Datacage: Moved templating in a better suited package.
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418 |
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419 continue; |
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420 } |
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Datacage: Moved templating in a better suited package.
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421 else if ("otherwise".equals(name)) { |
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Datacage: Moved templating in a better suited package.
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422 branch = child; |
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Datacage: Moved templating in a better suited package.
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423 // No break here. |
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Datacage: Moved templating in a better suited package.
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424 } |
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Datacage: Moved templating in a better suited package.
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425 } |
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Datacage: Moved templating in a better suited package.
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426 |
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|
427 if (branch != null) { |
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Datacage: Moved templating in a better suited package.
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parents:
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428 NodeList subs = branch.getChildNodes(); |
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Datacage: Moved templating in a better suited package.
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429 for (int i = 0, N = subs.getLength(); i < N; ++i) { |
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Datacage: Moved templating in a better suited package.
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430 build(parent, subs.item(i)); |
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Datacage: Moved templating in a better suited package.
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431 } |
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Datacage: Moved templating in a better suited package.
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432 } |
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Datacage: Moved templating in a better suited package.
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433 } |
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Datacage: Moved templating in a better suited package.
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434 |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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435 protected Object evaluateXPath(String expr, QName returnType) { |
998
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436 |
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437 if (log.isDebugEnabled()) { |
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Datacage: Moved templating in a better suited package.
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438 log.debug("evaluate: '" + expr + "'"); |
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439 } |
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Datacage: Moved templating in a better suited package.
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440 |
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441 try { |
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442 XPath xpath = XPATH_FACTORY.newXPath(); |
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443 xpath.setXPathVariableResolver(frames); |
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|
444 xpath.setXPathFunctionResolver(FunctionResolver.FUNCTIONS); |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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445 return xpath.evaluate(expr, EVAL_DOCUMENT, returnType); |
998
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446 } |
4740
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Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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447 catch (XPathExpressionException xpee) { |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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448 log.error("expression: " + expr, xpee); |
998
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|
449 } |
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Datacage: Moved templating in a better suited package.
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450 return null; |
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451 } |
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Datacage: Moved templating in a better suited package.
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452 |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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453 protected Boolean evaluateXPathToBoolean(String expr) { |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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454 |
4740
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Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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455 Object result = evaluateXPath(expr, XPathConstants.BOOLEAN); |
4737
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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456 |
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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457 return result instanceof Boolean |
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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458 ? (Boolean)result |
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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|
459 : null; |
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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|
460 } |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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|
461 |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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462 protected void convert(Element current) { |
998
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diff
changeset
|
463 |
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parents:
diff
changeset
|
464 String variable = expand(current.getAttribute("var")); |
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changeset
|
465 String type = expand(current.getAttribute("type")); |
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diff
changeset
|
466 |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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|
467 Object [] result = new Object[1]; |
3ca999f507b7
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|
468 |
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|
469 if (frames.getStore(variable, result)) { |
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|
470 Object object = TypeConverter.convert(result[0], type); |
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|
471 frames.put(variable.toUpperCase(), object); |
998
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parents:
diff
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|
472 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
473 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
474 |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
475 |
4891
089bc08f720e
Builder: Doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
4890
diff
changeset
|
476 /** Put <dc:variable> content as variable on stackframes. */ |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
477 protected void variable(Element current) { |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
478 |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
479 String varName = expand(current.getAttribute("name")); |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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changeset
|
480 String expr = current.getAttribute("expr"); |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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changeset
|
481 String type = current.getAttribute("type"); |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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changeset
|
482 |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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diff
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|
483 if (varName.length() == 0 || expr.length() == 0) { |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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|
484 log.error("dc:variable 'name' or 'expr' empty."); |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
485 } |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
486 else { |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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|
487 frames.put( |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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diff
changeset
|
488 varName.toUpperCase(), |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
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changeset
|
489 evaluateXPath(expr, typeToQName(type))); |
4737
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Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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diff
changeset
|
490 } |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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diff
changeset
|
491 } |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
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parents:
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|
492 |
998
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
493 protected String expand(String s) { |
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Datacage: Moved templating in a better suited package.
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parents:
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changeset
|
494 Matcher m = CompiledStatement.VAR.matcher(s); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
495 |
1716
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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diff
changeset
|
496 Object [] result = new Object[1]; |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
497 |
998
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parents:
diff
changeset
|
498 StringBuffer sb = new StringBuffer(); |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
499 while (m.find()) { |
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Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
500 String key = m.group(1); |
1716
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changeset
|
501 result[0] = null; |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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diff
changeset
|
502 if (frames.getStore(key, result)) { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
503 m.appendReplacement( |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
504 sb, result[0] != null ? result[0].toString() : ""); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
505 } |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
506 else { |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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parents:
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changeset
|
507 m.appendReplacement(sb, "\\${" + key + "}"); |
3ca999f507b7
flys/issue314: Variables in datacage are now case insensitive.
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changeset
|
508 } |
998
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.
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parents:
diff
changeset
|
510 m.appendTail(sb); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
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parents:
diff
changeset
|
511 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
|
512 } |
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 protected void build(Node parent, Node current) |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
515 throws SQLException |
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 String ns = current.getNamespaceURI(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
518 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
|
519 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
|
520 log.warn("need elements here"); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
521 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
522 else { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
523 String localName = current.getLocalName(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
524 if ("attribute".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
525 attribute(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
526 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
527 else if ("context".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
528 context(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
529 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
530 else if ("if".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
531 ifClause(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
532 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
533 else if ("choose".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
534 choose(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
535 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
536 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
|
537 callMacro(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
538 } |
4890
bf38ea4cb0f7
Added bodies to macros. Use the bodies of <dc:call-macro><body></dc:call-macro> as <dc:macro-body/> in tthe macro. Example:
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4740
diff
changeset
|
539 else if ("macro-body".equals(localName)) { |
bf38ea4cb0f7
Added bodies to macros. Use the bodies of <dc:call-macro><body></dc:call-macro> as <dc:macro-body/> in tthe macro. Example:
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4740
diff
changeset
|
540 macroBody(parent, (Element)current); |
bf38ea4cb0f7
Added bodies to macros. Use the bodies of <dc:call-macro><body></dc:call-macro> as <dc:macro-body/> in tthe macro. Example:
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4740
diff
changeset
|
541 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
542 else if ("macro".equals(localName)) { |
1029
3f3988bb6284
Picky Cosmetics.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1023
diff
changeset
|
543 // Simply ignore the definition. |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
544 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
545 else if ("element".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
546 element(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
547 } |
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
|
548 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
|
549 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
|
550 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
551 else if ("text".equals(localName)) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
552 text(parent, (Element)current); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
553 } |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4614
diff
changeset
|
554 else if ("variable".equals(localName)) { |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4614
diff
changeset
|
555 variable((Element)current); |
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4614
diff
changeset
|
556 } |
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
|
557 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
|
558 || "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
|
559 // 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
|
560 } |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
561 else if ("convert".equals(localName)) { |
4737
718adea968e2
Add <dc:variable name="variable" expr="xpath"/> construct to datacage language.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4614
diff
changeset
|
562 convert((Element)current); |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
563 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
564 else { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
565 log.warn("unknown '" + localName + "' -> ignore"); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
566 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
567 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
568 return; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
569 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
570 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
571 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
|
572 String txt = current.getNodeValue(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
573 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
|
574 return; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
575 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
576 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
577 |
4353
daf0919df76d
Ignore comments in meta data xml template
Björn Ricks <bjoern.ricks@intevation.de>
parents:
4051
diff
changeset
|
578 if (current.getNodeType() == Node.COMMENT_NODE) { |
daf0919df76d
Ignore comments in meta data xml template
Björn Ricks <bjoern.ricks@intevation.de>
parents:
4051
diff
changeset
|
579 // Ignore XML comments |
daf0919df76d
Ignore comments in meta data xml template
Björn Ricks <bjoern.ricks@intevation.de>
parents:
4051
diff
changeset
|
580 return; |
daf0919df76d
Ignore comments in meta data xml template
Björn Ricks <bjoern.ricks@intevation.de>
parents:
4051
diff
changeset
|
581 } |
daf0919df76d
Ignore comments in meta data xml template
Björn Ricks <bjoern.ricks@intevation.de>
parents:
4051
diff
changeset
|
582 |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
583 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
|
584 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
585 NodeList children = current.getChildNodes(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
586 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
|
587 build(copy, children.item(i)); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
588 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
589 parent.appendChild(copy); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
590 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
591 } // class BuildHelper |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
592 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
593 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
594 public Builder() { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
595 compiledStatements = new HashMap<String, CompiledStatement>(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
596 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
597 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
598 public Builder(Document template) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
599 this(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
600 this.template = template; |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
601 compileStatements(); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
602 } |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
603 |
4740
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
604 protected static QName typeToQName(String type) { |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
605 if ("number" .equals(type)) return XPathConstants.NUMBER; |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
606 if ("bool" .equals(type)) return XPathConstants.BOOLEAN; |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
607 if ("node" .equals(type)) return XPathConstants.NODE; |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
608 if ("nodeset".equals(type)) return XPathConstants.NODESET; |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
609 return XPathConstants.STRING; |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
610 } |
fb135e1dfa35
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given
Sascha L. Teichmann <teichmann@intevation.de>
parents:
4737
diff
changeset
|
611 |
4614 | 612 /** Handle <dc:statement> elements. */ |
998
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
613 protected void compileStatements() { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
614 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
615 NodeList nodes = template.getElementsByTagNameNS( |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
616 DC_NAMESPACE_URI, "statement"); |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
617 |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
618 for (int i = 0, N = nodes.getLength(); i < N; ++i) { |
b81626b10cb7
Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
619 Element stmntElement = (Element)nodes.item(i); |
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620 String stmnt = trimStatement(stmntElement.getTextContent()); |
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621 if (stmnt == null || stmnt.length() == 0) { |
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622 throw new IllegalArgumentException("found empty statement"); |
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623 } |
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624 CompiledStatement cs = new CompiledStatement(stmnt); |
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625 // For faster lookup store a shortend string into the template. |
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626 stmnt = "s" + i; |
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627 stmntElement.setTextContent(stmnt); |
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628 compiledStatements.put(stmnt, cs); |
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629 } |
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630 } |
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631 |
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632 protected List<Node> rootsToList() { |
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633 |
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634 NodeList roots = template.getElementsByTagNameNS( |
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635 DC_NAMESPACE_URI, "template"); |
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636 |
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637 List<Node> elements = new ArrayList<Node>(); |
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638 |
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639 for (int i = 0, N = roots.getLength(); i < N; ++i) { |
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640 NodeList rootChildren = roots.item(i).getChildNodes(); |
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641 for (int j = 0, M = rootChildren.getLength(); j < M; ++j) { |
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642 Node child = rootChildren.item(j); |
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643 if (child.getNodeType() == Node.ELEMENT_NODE) { |
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644 elements.add(child); |
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645 } |
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646 } |
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647 } |
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648 |
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649 return elements; |
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650 } |
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651 |
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652 protected static final String trimStatement(String stmnt) { |
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653 if (stmnt == null) return null; |
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654 //XXX: Maybe a bit to radical for multiline strings? |
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655 return STRIP_LINE_INDENT.matcher(stmnt.trim()).replaceAll(" "); |
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656 } |
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657 |
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658 protected static Document getOwnerDocument(Node node) { |
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659 Document document = node.getOwnerDocument(); |
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660 return document != null ? document : (Document)node; |
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661 } |
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662 |
1011
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663 private static final List<NamedConnection> wrap(Connection connection) { |
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664 List<NamedConnection> list = new ArrayList<NamedConnection>(1); |
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665 list.add(new NamedConnection(DEFAULT_CONNECTION_NAME, connection)); |
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666 return list; |
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667 } |
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668 |
998
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669 public void build( |
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670 Connection connection, |
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671 Node output, |
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672 Map<String, Object> parameters |
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673 ) |
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674 throws SQLException |
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675 { |
1011
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676 build(wrap(connection), output, parameters); |
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677 } |
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678 |
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679 public void build( |
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680 List<NamedConnection> connections, |
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681 Node output, |
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682 Map<String, Object> parameters |
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683 ) |
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684 throws SQLException |
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685 { |
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686 BuildHelper helper = new BuildHelper(output, connections, parameters); |
998
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687 |
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688 helper.build(); |
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689 } |
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690 } |
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691 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |