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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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package com.nokia.helium.sbs;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.apache.tools.ant.BuildException;
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import org.dom4j.Attribute;
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import org.dom4j.DocumentException;
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import org.dom4j.Element;
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import org.dom4j.ElementHandler;
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import org.dom4j.ElementPath;
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import org.dom4j.io.SAXReader;
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/**
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* Parses the sysdef config file and extracts the available configurations
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*/
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public class SAXSysdefParser {
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private File sysdefFile;
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private List<String> layers;
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private boolean initialized;
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/**
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* Constructor
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*
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* @param fileName - name of the sysdef file to parse
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*/
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public SAXSysdefParser(File fileName) {
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sysdefFile = fileName;
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}
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public List<String> getLayers() {
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if (!initialized) {
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initialized = true;
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parseConfig("layer");
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if (layers == null) {
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throw new BuildException("No layers found from sysdef");
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}
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}
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return layers;
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}
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/**
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* Constructor
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*
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* @return list of available configurations that can be built.
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*/
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public void parseConfig(String nodeToGet) {
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layers = new ArrayList<String>();
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SAXReader reader = new SAXReader();
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reader.addHandler("/SystemDefinition/systemModel/" + nodeToGet, new ElementHandler() {
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public void onStart(ElementPath path) {
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}
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public void onEnd(ElementPath path) {
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Element row = path.getCurrent();
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Iterator itr = row.attributeIterator();
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while (itr.hasNext()) {
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Attribute child = (Attribute) itr.next();
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String attrName = child.getQualifiedName();
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if (attrName.equals("name")) {
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layers.add(child.getValue());
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}
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}
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row.detach();
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}
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});
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try {
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reader.read(sysdefFile);
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}
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catch (DocumentException e) {
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e.printStackTrace();
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}
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}
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} |