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annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/Builder.java @ 1009:fc5fca0c33b3

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Datacage: Set the name of the collections at initial scan, too. flys-artifacts/trunk@2454 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 02 Aug 2011 14:09:01 +0000
parents b81626b10cb7
children aca3b46160cb
rev   line source
998
b81626b10cb7 Datacage: Moved templating in a better suited package.
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1 package de.intevation.flys.artifacts.datacage.templating;
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2
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3 import java.util.regex.Pattern;
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4 import java.util.regex.Matcher;
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5
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6 import java.util.ArrayList;
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7 import java.util.List;
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8 import java.util.HashMap;
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9 import java.util.Map;
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10
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.NodeList;
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13 import org.w3c.dom.Node;
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14 import org.w3c.dom.Element;
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15
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16 import javax.xml.xpath.XPath;
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17 import javax.xml.xpath.XPathFactory;
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18 import javax.xml.xpath.XPathExpressionException;
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19 import javax.xml.xpath.XPathConstants;
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20
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21 import java.sql.SQLException;
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22 import java.sql.Connection;
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23
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24 import de.intevation.artifacts.common.utils.XMLUtils;
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26 import org.apache.log4j.Logger;
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27
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28 public class Builder
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29 {
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30 private static Logger log = Logger.getLogger(Builder.class);
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31
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32 public static final Pattern STRIP_LINE_INDENT =
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33 Pattern.compile("\\s*\\r?\\n\\s*");
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34
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35 public static final String DC_NAMESPACE_URI =
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36 "http://www.intevation.org/2011/Datacage";
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37
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38 private static final Document EVAL_DOCUMENT =
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39 XMLUtils.newDocument();
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40
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41 private static final XPathFactory XPATH_FACTORY =
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42 XPathFactory.newInstance();
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43
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44 protected Document template;
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45
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46 protected Map<String, CompiledStatement> compiledStatements;
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47
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48
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49 public class BuildHelper
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50 {
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51 protected Node output;
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52 protected Document owner;
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53 protected StackFrames frames;
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54 protected Connection connection;
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55 protected Map<String, CompiledStatement.Instance> statements;
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56
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57 public BuildHelper(
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58 Node output,
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59 Connection connection,
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60 Map<String, Object> parameters
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61 ) {
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62 this.output = output;
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63 this.connection = connection;
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64 frames = new StackFrames(parameters);
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65 statements = new HashMap<String, CompiledStatement.Instance>();
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66 owner = getOwnerDocument(output);
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67 }
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68
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69 public void build() throws SQLException {
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70 try {
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71 synchronized (template) {
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72 for (Node current: rootsToList()) {
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73 build(output, current);
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74 }
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75 }
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76 }
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77 finally {
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78 closeStatements();
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79 }
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80 }
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81
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82 protected void closeStatements() {
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83 for (CompiledStatement.Instance csi: statements.values()) {
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84 csi.close();
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85 }
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86 statements.clear();
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87 }
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88
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89 protected void context(Node parent, Element current)
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90 throws SQLException
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91 {
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92 NodeList elements = current.getElementsByTagNameNS(
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93 DC_NAMESPACE_URI, "elements");
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94
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95 if (elements.getLength() < 1) {
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96 log.warn("no elements found -> ignore");
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97 return;
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98 }
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99
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100 NodeList subs = elements.item(0).getChildNodes();
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101 int S = subs.getLength();
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102
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103 if (S < 1) {
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104 log.warn("elements is empty -> ignore");
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105 return;
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106 }
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107
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108 NodeList stmntNode = current.getElementsByTagNameNS(
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109 DC_NAMESPACE_URI, "statement");
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110
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111 if (stmntNode.getLength() < 1) {
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112 log.warn("dc:context: too less statements");
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113 return;
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114 }
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115
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116 String stmntText = stmntNode.item(0).getTextContent();
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117
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118 CompiledStatement.Instance csi = statements.get(stmntText);
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119
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120 if (csi == null) {
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121 CompiledStatement cs = compiledStatements.get(stmntText);
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122 csi = cs.new Instance();
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123 statements.put(stmntText, csi);
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124 }
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125
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126 ResultData rd = csi.execute(connection, frames);
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127
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128 String [] columns = rd.getColumnLabels();
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129
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130
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131 for (Object [] row: rd.getRows()) {
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132 frames.enter();
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133 try {
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134 frames.put(columns, row);
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135 for (int i = 0; i < S; ++i) {
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136 build(parent, subs.item(i));
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137 }
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138 }
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139 finally {
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140 frames.leave();
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141 }
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142 }
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143 }
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144
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145 protected void element(Node parent, Element current)
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146 throws SQLException
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147 {
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148 String attr = expand(current.getAttribute("name"));
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149
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150 if (log.isDebugEnabled()) {
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151 log.debug("dc:element -> '" + attr + "'");
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152 }
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153
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154 if (attr.length() == 0) {
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155 log.warn("no name attribute found");
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156 return;
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157 }
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158
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159 Element element = owner.createElement(attr);
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160
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161 NodeList children = current.getChildNodes();
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162 for (int i = 0, N = children.getLength(); i < N; ++i) {
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163 build(element, children.item(i));
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diff changeset
164 }
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165
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166 parent.appendChild(element);
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167 }
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168
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169 protected void text(Node parent, Element current)
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170 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
171 {
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diff changeset
172 log.debug("dc:text");
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173 String value = expand(current.getTextContent());
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174 parent.appendChild(owner.createTextNode(value));
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175 }
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parents:
diff changeset
176
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parents:
diff changeset
177
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diff changeset
178 protected void attribute(Node parent, Element current) {
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179
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diff changeset
180 if (parent.getNodeType() != Node.ELEMENT_NODE) {
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diff changeset
181 log.warn("need element here");
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diff changeset
182 return;
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parents:
diff changeset
183 }
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parents:
diff changeset
184
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185 String name = expand(current.getAttribute("name"));
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diff changeset
186 String value = expand(current.getAttribute("value"));
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187
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diff changeset
188 Element element = (Element)parent;
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189
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diff changeset
190 element.setAttribute(name, value);
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diff changeset
191 }
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parents:
diff changeset
192
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diff changeset
193 protected void callMacro(Node parent, Element current)
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diff changeset
194 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
195 {
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diff changeset
196 String name = current.getAttribute("name");
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parents:
diff changeset
197
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parents:
diff changeset
198 if (name.length() == 0) {
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parents:
diff changeset
199 log.warn("missing 'name' attribute in 'call-macro'");
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parents:
diff changeset
200 return;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
201 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
202
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
203 NodeList macros = template.getElementsByTagNameNS(
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parents:
diff changeset
204 DC_NAMESPACE_URI, "macro");
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parents:
diff changeset
205
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
206 for (int i = 0, N = macros.getLength(); i < N; ++i) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
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parents:
diff changeset
207 Element macro = (Element)macros.item(i);
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parents:
diff changeset
208 if (name.equals(macro.getAttribute("name"))) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
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parents:
diff changeset
209 NodeList subs = macro.getChildNodes();
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parents:
diff changeset
210 for (int j = 0, M = subs.getLength(); j < M; ++j) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
211 build(parent, subs.item(j));
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parents:
diff changeset
212 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
213 return;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
214 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
215 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
216
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parents:
diff changeset
217 log.warn("no macro '" + name + "' found.");
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parents:
diff changeset
218 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
219
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220 protected void ifClause(Node parent, Element current)
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parents:
diff changeset
221 throws SQLException
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
222 {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
223 String test = current.getAttribute("test");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
224
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
225 if (test.length() == 0) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
226 log.warn("missing 'test' attribute in 'if'");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
227 return;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
228 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
229
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
230 Boolean result = evaluateXPath(test);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
231
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232 if (result != null && result.booleanValue()) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233 NodeList subs = current.getChildNodes();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 for (int i = 0, N = subs.getLength(); i < N; ++i) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
235 build(parent, subs.item(i));
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
236 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
237 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
238 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
239
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
240 protected void choose(Node parent, Element current)
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
241 throws SQLException
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242 {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
243 Node branch = null;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
244
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
245 NodeList children = current.getChildNodes();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
246 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
247 Node child = children.item(i);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
248 String ns = child.getNamespaceURI();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
249 if (ns == null
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
250 || !ns.equals(DC_NAMESPACE_URI)
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
251 || child.getNodeType() != Node.ELEMENT_NODE
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
252 ) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
253 continue;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
254 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
255 String name = child.getLocalName();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
256 if ("when".equals(name)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
257 Element when = (Element)child;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
258 String test = when.getAttribute("test");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
259 if (test.length() == 0) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
260 log.warn("no 'test' attribute found for when");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
261 continue;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
262 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
263
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
264 Boolean result = evaluateXPath(test);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
265 if (result != null && result.booleanValue()) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
266 branch = child;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
267 break;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
268 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
269
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
270 continue;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
271 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
272 else if ("otherwise".equals(name)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
273 branch = child;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
274 // No break here.
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
275 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
276 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
277
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
278 if (branch != null) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
279 NodeList subs = branch.getChildNodes();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
280 for (int i = 0, N = subs.getLength(); i < N; ++i) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
281 build(parent, subs.item(i));
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
282 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
283 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
284 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
285
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
286 protected Boolean evaluateXPath(String expr) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
287
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
288 if (log.isDebugEnabled()) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
289 log.debug("evaluate: '" + expr + "'");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
290 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
291
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
292 try {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
293 XPath xpath = XPATH_FACTORY.newXPath();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
294 xpath.setXPathVariableResolver(frames);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
295 xpath.setXPathFunctionResolver(FunctionResolver.FUNCTIONS);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
296 Object result = xpath.evaluate(
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
297 expr, EVAL_DOCUMENT, XPathConstants.BOOLEAN);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
298
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
299 return result instanceof Boolean
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
300 ? (Boolean)result
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
301 : null;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
302 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
303 catch (XPathExpressionException xfce) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
304 log.error(xfce);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
305 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
306 return null;
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
307 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
308
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
309 protected void convert(Node parent, Element current) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
310
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
311 String variable = expand(current.getAttribute("var"));
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
312 String type = expand(current.getAttribute("type"));
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
313
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
314 if (frames.containsKey(variable)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
315 Object object = TypeConverter.convert(
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
316 frames.get(variable),
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
317 type);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
318 frames.put(variable, object);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
319 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
320 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
321
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
322 protected String expand(String s) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
323 Matcher m = CompiledStatement.VAR.matcher(s);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
324
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
325 StringBuffer sb = new StringBuffer();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
326 while (m.find()) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
327 String key = m.group(1);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
328 Object value = frames.get(key);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
329 m.appendReplacement(sb, value != null ? value.toString() : "");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
330 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
331 m.appendTail(sb);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
332 return sb.toString();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
333 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
334
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
335 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
336 throws SQLException
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
337 {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
338 String ns = current.getNamespaceURI();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
339 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
340 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
341 log.warn("need elements here");
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
342 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
343 else {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
344 String localName = current.getLocalName();
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
345 if ("attribute".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
346 attribute(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
347 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
348 else if ("context".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
349 context(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
350 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
351 else if ("if".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
352 ifClause(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
353 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
354 else if ("choose".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
355 choose(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
356 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
357 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
358 callMacro(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
359 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
360 else if ("macro".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
361 // simply ignore the definition.
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
362 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
363 else if ("element".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
364 element(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
365 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
366 else if ("text".equals(localName)) {
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
367 text(parent, (Element)current);
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
368 }
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369 else if ("convert".equals(localName)) {
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370 convert(parent, (Element)current);
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371 }
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372 else {
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373 log.warn("unknown '" + localName + "' -> ignore");
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374 }
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375 }
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376 return;
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377 }
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378
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379 if (current.getNodeType() == Node.TEXT_NODE) {
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380 String txt = current.getNodeValue();
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381 if (txt != null && txt.trim().length() == 0) {
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382 return;
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383 }
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384 }
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385
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386 Node copy = owner.importNode(current, false);
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387
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388 NodeList children = current.getChildNodes();
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389 for (int i = 0, N = children.getLength(); i < N; ++i) {
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390 build(copy, children.item(i));
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391 }
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392 parent.appendChild(copy);
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393 }
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394 } // class BuildHelper
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395
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396
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397 public Builder() {
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398 compiledStatements = new HashMap<String, CompiledStatement>();
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399 }
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400
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401 public Builder(Document template) {
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402 this();
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403 this.template = template;
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404 compileStatements();
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405 }
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406
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407 protected void compileStatements() {
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408
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409 NodeList nodes = template.getElementsByTagNameNS(
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410 DC_NAMESPACE_URI, "statement");
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411
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412 for (int i = 0, N = nodes.getLength(); i < N; ++i) {
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413 Element stmntElement = (Element)nodes.item(i);
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414 String stmnt = trimStatement(stmntElement.getTextContent());
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415 if (stmnt == null || stmnt.length() == 0) {
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416 throw new IllegalArgumentException("found empty statement");
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417 }
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418 CompiledStatement cs = new CompiledStatement(stmnt);
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419 // for faster lookup store a shortend string into the template
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420 stmnt = "s" + i;
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421 stmntElement.setTextContent(stmnt);
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422 compiledStatements.put(stmnt, cs);
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423 }
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diff changeset
424 }
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diff changeset
425
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426 protected List<Node> rootsToList() {
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diff changeset
427
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428 NodeList roots = template.getElementsByTagNameNS(
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429 DC_NAMESPACE_URI, "template");
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diff changeset
430
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431 List<Node> elements = new ArrayList<Node>();
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432
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433 for (int i = 0, N = roots.getLength(); i < N; ++i) {
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434 NodeList rootChildren = roots.item(i).getChildNodes();
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435 for (int j = 0, M = rootChildren.getLength(); j < M; ++j) {
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diff changeset
436 Node child = rootChildren.item(j);
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437 if (child.getNodeType() == Node.ELEMENT_NODE) {
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diff changeset
438 elements.add(child);
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diff changeset
439 }
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parents:
diff changeset
440 }
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parents:
diff changeset
441 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
442
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diff changeset
443 return elements;
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diff changeset
444 }
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diff changeset
445
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diff changeset
446 protected static final String trimStatement(String stmnt) {
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diff changeset
447 if (stmnt == null) return null;
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diff changeset
448 //XXX: Maybe a bit to radical for multiline strings?
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diff changeset
449 return STRIP_LINE_INDENT.matcher(stmnt.trim()).replaceAll(" ");
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diff changeset
450 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
451
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diff changeset
452 protected static Document getOwnerDocument(Node node) {
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parents:
diff changeset
453 Document document = node.getOwnerDocument();
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diff changeset
454 return document != null ? document : (Document)node;
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diff changeset
455 }
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parents:
diff changeset
456
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diff changeset
457 public void build(
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parents:
diff changeset
458 Connection connection,
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parents:
diff changeset
459 Node output,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
460 Map<String, Object> parameters
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parents:
diff changeset
461 )
b81626b10cb7 Datacage: Moved templating in a better suited package.
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parents:
diff changeset
462 throws SQLException
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
463 {
b81626b10cb7 Datacage: Moved templating in a better suited package.
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parents:
diff changeset
464 BuildHelper helper = new BuildHelper(output, connection, parameters);
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parents:
diff changeset
465
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parents:
diff changeset
466 helper.build();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
467 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
468 }
b81626b10cb7 Datacage: Moved templating in a better suited package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
469 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org