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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2002 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Ant", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.taskdefs; |
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import org.apache.tools.ant.BuildException; |
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import org.apache.tools.ant.Project; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.Node; |
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import org.w3c.dom.NodeList; |
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import org.xml.sax.SAXException; |
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import javax.xml.parsers.DocumentBuilder; |
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import javax.xml.parsers.DocumentBuilderFactory; |
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import javax.xml.parsers.FactoryConfigurationError; |
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import javax.xml.parsers.ParserConfigurationException; |
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import java.io.BufferedInputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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/** |
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* Task get property values from a valid xml file. |
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* Example: |
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* <root-tag myattr="true"> |
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* <inner-tag someattr="val">Text</inner-tag> |
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* <a2><a3><a4>false</a4></a3></a2> |
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* </root-tag> |
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* |
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* root-tag(myattr)=true |
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* root-tag.inner-tag=Text |
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* root-tag.inner-tag(someattr)=val |
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* root-tag.a2.a3.a4=false |
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* |
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* @author <a href="mailto:barozzi@nicolaken.com">Nicola Ken Barozzi</a> |
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* @author Erik Hatcher |
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* @created 14 January 2002 |
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*/ |
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public class XmlProperty extends org.apache.tools.ant.Task { |
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private File src; |
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private String prefix = ""; |
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private boolean keepRoot = true; |
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private org.w3c.dom.Document document; |
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/** |
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* Constructor. |
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*/ |
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public XmlProperty() { |
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super(); |
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} |
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/** |
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* Initializes the task. |
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*/ |
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public void init() { |
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super.init(); |
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} |
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/** |
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* Run the task. |
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* @exception org.apache.tools.ant.BuildException The exception raised during task execution. |
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*/ |
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public void execute() |
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throws org.apache.tools.ant.BuildException { |
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BufferedInputStream configurationStream = null; |
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try { |
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configurationStream = |
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new BufferedInputStream(new FileInputStream(src)); |
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
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factory.setValidating(false); |
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factory.setNamespaceAware(false); |
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DocumentBuilder builder = factory.newDocumentBuilder(); |
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document = builder.parse(configurationStream); |
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Element topElement = document.getDocumentElement(); |
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NodeList topChildren = topElement.getChildNodes(); |
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int numChildren = topChildren.getLength(); |
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String prefixToUse = ""; |
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if (!(prefix.equals(""))) { |
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prefixToUse = prefix; |
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} |
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log("Prefix to use 1: \"" + prefixToUse + "\"", Project.MSG_DEBUG); |
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/* |
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if ((!(prefix.equals(""))) && keepRoot) { |
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prefixToUse += "."; |
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} |
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log("Prefix to use 2: \"" + prefixToUse + "\"", Project.MSG_DEBUG); |
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if (keepRoot) { |
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prefixToUse += (topElement.getNodeName()); |
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} |
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log("Prefix to use 3: \"" + prefixToUse + "\"", Project.MSG_VERBOSE); |
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*/ |
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if (keepRoot) { |
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addNodeRecursively(topElement, prefixToUse, 0); |
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} |
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else { |
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for (int i = 0; i < numChildren; i++) { |
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addNodeRecursively(topChildren.item(i), prefixToUse, 0); |
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} |
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} |
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} catch (SAXException sxe) { |
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// Error generated during parsing |
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Exception x = sxe; |
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if (sxe.getException() != null) |
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x = sxe.getException(); |
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throw new BuildException(x); |
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} catch (ParserConfigurationException pce) { |
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// Parser with specified options can't be built |
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throw new BuildException(pce); |
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} catch (IOException ioe) { |
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// I/O error |
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throw new BuildException(ioe); |
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} finally { |
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if (configurationStream != null) { |
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try { |
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configurationStream.close(); |
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} catch (Exception e) { |
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} |
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} |
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} |
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} |
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void addNodeRecursively(org.w3c.dom.Node node, String prefix, int index) { |
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if (node.hasAttributes()) { |
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org.w3c.dom.NamedNodeMap nodeAttributes = node.getAttributes(); |
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for (int i = 0; i < nodeAttributes.getLength(); i++) { |
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Node attributeNode = nodeAttributes.item(i); |
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String attributeName = prefix + (prefix.trim().equals("")?"":".") + node.getNodeName() + "(" + attributeNode.getNodeName() + ")"; |
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String attributeValue = attributeNode.getNodeValue(); |
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log(attributeName + ":" + attributeValue, Project.MSG_DEBUG); |
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project.setNewProperty(attributeName, attributeValue); |
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} |
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} |
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if (node.getNodeType() == Node.TEXT_NODE) { |
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String nodeText = node.getNodeValue(); |
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if (nodeText.trim().length() != 0) { |
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log(prefix + ":" + nodeText, Project.MSG_DEBUG); |
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if (index == 0) { |
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project.setNewProperty(prefix, nodeText); |
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} |
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project.setNewProperty(prefix + "[" + String.valueOf(index) + "]", nodeText); |
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} |
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} |
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if (node.hasChildNodes()) { |
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prefix += ((prefix.trim().equals("")?"":".") + node.getNodeName()); |
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org.w3c.dom.NodeList nodeChildren = node.getChildNodes(); |
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int numChildren = nodeChildren.getLength(); |
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StringBuffer childList = new StringBuffer(); |
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for (int i = 0; i < numChildren; i++) { |
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if (i != 0) { |
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childList.append(","); |
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} |
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childList.append(node.getNodeName() + "[" + String.valueOf(index) + "]"); |
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addNodeRecursively(nodeChildren.item(i), prefix, i); |
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} |
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project.setNewProperty(prefix + "[]", childList.toString()); |
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} |
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} |
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public void setFile(File src) { |
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this.src = src; |
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} |
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public void setPrefix(String prefix) { |
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this.prefix = prefix.trim(); |
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} |
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public void setKeeproot(boolean keepRoot) { |
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this.keepRoot = keepRoot; |
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} |
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} |
Erik Hatcher