Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/meta/Builder.java @ 957:e91996b46e3c

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Meta data template: Added new choose/when/otherwise construct similiar to XSLT flys-artifacts/trunk@2376 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 20 Jul 2011 14:59:25 +0000
parents c09c9e05ecfa
children a2b20ed3d3b4
rev   line source
372
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1 package de.intevation.flys.artifacts.services.meta;
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2
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3 import java.util.regex.Matcher;
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4
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5 import java.util.ArrayList;
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6 import java.util.List;
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7 import java.util.HashMap;
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8 import java.util.Map;
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9
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.NodeList;
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12 import org.w3c.dom.Node;
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13 import org.w3c.dom.Element;
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14
957
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15 import javax.xml.xpath.XPath;
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16 import javax.xml.xpath.XPathFactory;
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17 import javax.xml.xpath.XPathExpressionException;
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18 import javax.xml.xpath.XPathConstants;
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19
372
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20 import java.sql.SQLException;
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21 import java.sql.Connection;
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22
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23 import de.intevation.artifacts.common.utils.XMLUtils;
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24
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25 import org.apache.log4j.Logger;
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26
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27 public class Builder
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28 {
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29 private static Logger log = Logger.getLogger(Builder.class);
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30
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31 public static final String DC_NAMESPACE_URI =
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32 "http://www.intevation.org/2011/Datacage";
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33
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34 private static final Document EVAL_DOCUMENT =
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35 XMLUtils.newDocument();
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36
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37 private static final XPathFactory XPATH_FACTORY =
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38 XPathFactory.newInstance();
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39
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40
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41
415
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42 protected Document template;
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43
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44 public class BuildHelper
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45 {
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46 protected Document output;
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47 protected StackFrames frames;
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48 protected Connection connection;
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49 protected Map<String, CompiledStatement> statements;
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50
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51 public BuildHelper(
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52 Document output,
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53 Connection connection,
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54 Map<String, Object> parameters
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55 ) {
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56 this.output = output;
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57 this.connection = connection;
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58 frames = new StackFrames(parameters);
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59 statements = new HashMap<String, CompiledStatement>();
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60 }
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61
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62 public void build(List<Node> elements) throws SQLException {
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63 try {
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64 for (Node current: elements) {
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65 build(output, current);
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66 }
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67 }
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68 finally {
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69 for (CompiledStatement cs: statements.values()) {
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70 cs.close();
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71 }
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72 statements.clear();
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73 }
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74 }
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75
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76 protected void context(Node parent, Element current)
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77 throws SQLException
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78 {
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79 NodeList elements = current.getElementsByTagNameNS(
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80 DC_NAMESPACE_URI, "elements");
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81
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82 if (elements.getLength() < 1) {
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83 log.warn("no elements found -> ignore");
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84 return;
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85 }
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86
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87 NodeList subs = elements.item(0).getChildNodes();
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88 int S = subs.getLength();
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89
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90 if (S < 1) {
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91 log.warn("elements is empty -> ignore");
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92 return;
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93 }
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94
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95 NodeList stmntNode = current.getElementsByTagNameNS(
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96 DC_NAMESPACE_URI, "statement");
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97
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98 if (stmntNode.getLength() < 1) {
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99 log.warn("dc:context: too less statements");
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100 return;
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101 }
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102
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103 String stmntText = stmntNode.item(0).getTextContent();
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104
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105 if (stmntText == null
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106 || (stmntText = stmntText.trim()).length() == 0) {
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107 log.warn("dc:context: no sql statement found -> ignored");
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108 return;
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109 }
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110
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111 CompiledStatement cs = statements.get(stmntText);
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112
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113 if (cs == null) {
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114 cs = new CompiledStatement(stmntText);
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115 statements.put(stmntText, cs);
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116 }
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117
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118 ResultData rd = cs.execute(connection, frames);
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119
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120 String [] columns = rd.getColumnLabels();
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121
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122
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123 for (Object [] row: rd.getRows()) {
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124 frames.enter();
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125 try {
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126 frames.put(columns, row);
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127 for (int i = 0; i < S; ++i) {
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128 build(parent, subs.item(i));
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129 }
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130 }
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131 finally {
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132 frames.leave();
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133 }
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134 }
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135 }
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136
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parents:
diff changeset
137 protected void element(Node parent, Element current)
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parents:
diff changeset
138 throws SQLException
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
139 {
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parents:
diff changeset
140 String attr = expand(current.getAttribute("name"));
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
141
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142 if (log.isDebugEnabled()) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
143 log.debug("dc:element -> '" + attr + "'");
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
144 }
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
145
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
146 if (attr.length() == 0) {
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
147 log.warn("no name attribute found");
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parents:
diff changeset
148 return;
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parents:
diff changeset
149 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
150
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
151 Element element = output.createElement(attr);
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parents:
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152
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parents:
diff changeset
153 NodeList children = current.getChildNodes();
fc3cf0ef777e Added meta data service.
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parents:
diff changeset
154 for (int i = 0, N = children.getLength(); i < N; ++i) {
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
155 build(element, children.item(i));
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
156 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
157
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
158 parent.appendChild(element);
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parents:
diff changeset
159 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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160
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
161 protected void text(Node parent, Element current)
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
162 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
163 {
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parents:
diff changeset
164 log.debug("dc:text");
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parents:
diff changeset
165 String value = expand(current.getTextContent());
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
166 parent.appendChild(output.createTextNode(value));
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
167 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
168
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
169
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
170 protected void attribute(Node parent, Element current) {
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parents:
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171
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parents:
diff changeset
172 if (parent.getNodeType() != Node.ELEMENT_NODE) {
fc3cf0ef777e Added meta data service.
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parents:
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173 log.warn("need element here");
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parents:
diff changeset
174 return;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
175 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
176
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
177 String name = expand(current.getAttribute("name"));
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
178 String value = expand(current.getAttribute("value"));
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
179
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
180 Element element = (Element)parent;
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parents:
diff changeset
181
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
182 element.setAttribute(name, value);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
183 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
184
957
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
185 protected void choose(Node parent, Element current)
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
186 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
187 {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
188 Node branch = null;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
189
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
190 NodeList children = current.getChildNodes();
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
191 for (int i = 0, N = children.getLength(); i < N; ++i) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
192 Node child = children.item(i);
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
193 String ns = child.getNamespaceURI();
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
194 if (ns == null
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
195 || !ns.equals(DC_NAMESPACE_URI)
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
196 || child.getNodeType() != Node.ELEMENT_NODE
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
197 ) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
198 continue;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
199 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
200 String name = child.getLocalName();
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
201 if ("when".equals(name)) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
202 Element when = (Element)child;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
203 String test = when.getAttribute("test");
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
204 if (test.length() == 0) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
205 log.warn("no 'test' attribute found for when");
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
206 continue;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
207 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
208
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
209 try {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
210 XPath xpath = XPATH_FACTORY.newXPath();
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
211 xpath.setXPathVariableResolver(frames);
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
212 Object result = xpath.evaluate(
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
213 test, EVAL_DOCUMENT, XPathConstants.BOOLEAN);
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
214
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
215 if (result instanceof Boolean
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
216 && ((Boolean)result).booleanValue()) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
217 branch = child;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
218 break;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
219 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
220 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
221 catch (XPathExpressionException xfce) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
222 log.error(xfce);
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
223 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
224 continue;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
225 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
226 else if ("otherwise".equals(name)) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
227 branch = child;
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
228 // No break here.
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
229 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
230 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
231
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
232 if (branch != null) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
233 NodeList subs = branch.getChildNodes();
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
234 for (int i = 0, N = subs.getLength(); i < N; ++i) {
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
235 build(parent, subs.item(i));
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
236 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
237 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
238 }
e91996b46e3c Meta data template: Added new choose/when/otherwise construct similiar to XSLT
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 742
diff changeset
239
415
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
240 protected void convert(Node parent, Element current) {
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
241
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
242 String variable = expand(current.getAttribute("var"));
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
243 String type = expand(current.getAttribute("type"));
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
244
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
245 if (frames.containsKey(variable)) {
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
246 Object object = TypeConverter.convert(
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
247 frames.get(variable),
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
248 type);
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
249 frames.put(variable, object);
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
250 }
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
251 }
7c018f466d6d Datacage: Added river parameter to meta data services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 410
diff changeset
252
372
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
253 protected String expand(String s) {
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
254 Matcher m = CompiledStatement.VAR.matcher(s);
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
255
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
256 StringBuffer sb = new StringBuffer();
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
257 while (m.find()) {
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
258 String key = m.group(1);
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
259 Object value = frames.get(key);
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
260 m.appendReplacement(sb, value != null ? value.toString() : "");
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
261 }
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
262 m.appendTail(sb);
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
263 return sb.toString();
fc3cf0ef777e Added meta data service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
264 }
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265
742
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266 protected void build(Node parent, Node current)
372
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267 throws SQLException
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268 {
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269 String ns = current.getNamespaceURI();
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270 if (ns != null && ns.equals(DC_NAMESPACE_URI)) {
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271 if (current.getNodeType() != Node.ELEMENT_NODE) {
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272 log.warn("need elements here");
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273 }
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274 else {
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275 String localName = current.getLocalName();
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276 if ("context".equals(localName)) {
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277 context(parent, (Element)current);
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278 }
957
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279 else if ("choose".equals(localName)) {
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280 choose(parent, (Element)current);
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281 }
372
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282 else if ("attribute".equals(localName)) {
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283 attribute(parent, (Element)current);
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284 }
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285 else if ("element".equals(localName)) {
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286 element(parent, (Element)current);
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287 }
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288 else if ("text".equals(localName)) {
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289 text(parent, (Element)current);
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290 }
415
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291 else if ("convert".equals(localName)) {
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292 convert(parent, (Element)current);
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293 }
372
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294 else {
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295 log.warn("unknown '" + localName + "' -> ignore");
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296 }
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297 }
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298 return;
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299 }
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300
410
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301 if (current.getNodeType() == Node.TEXT_NODE) {
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302 String txt = current.getNodeValue();
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303 if (txt != null && txt.trim().length() == 0) {
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304 return;
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305 }
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306 }
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307
372
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308 Node copy = output.importNode(current, false);
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309
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310 NodeList children = current.getChildNodes();
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311 for (int i = 0, N = children.getLength(); i < N; ++i) {
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312 build(copy, children.item(i));
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313 }
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314 parent.appendChild(copy);
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315 }
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316 } // class BuildHelper
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317
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318
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319 public Builder() {
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320 }
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321
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322 public Builder(Document template) {
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323 this.template = template;
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324 }
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325
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326 public Document build(Connection connection)
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327 throws SQLException
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328 {
415
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329 return build(connection, XMLUtils.newDocument(), null);
372
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330 }
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331
415
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332 public Document build(
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333 Connection connection,
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334 Document output,
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335 Map<String, Object> parameters
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336 )
372
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337 throws SQLException
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338 {
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339 NodeList roots = template.getElementsByTagNameNS(
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340 DC_NAMESPACE_URI, "template");
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341
415
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342 BuildHelper helper = new BuildHelper(output, connection, parameters);
372
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343
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344 List<Node> elements = new ArrayList<Node>();
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345
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346 for (int i = 0, N = roots.getLength(); i < N; ++i) {
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347 NodeList rootChildren = roots.item(i).getChildNodes();
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348 for (int j = 0, M = rootChildren.getLength(); j < M; ++j) {
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349 Node child = rootChildren.item(j);
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350 if (child.getNodeType() == Node.ELEMENT_NODE) {
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351 elements.add(child);
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352 }
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353 }
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354 }
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355 helper.build(elements);
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356
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357 return output;
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358 }
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359 }
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360 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org