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// Copyright (c) 2008-2009 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 "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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package com.symbian.smt.gui;
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import java.io.IOException;
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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.ParserConfigurationException;
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import javax.xml.xpath.XPath;
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import javax.xml.xpath.XPathConstants;
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import javax.xml.xpath.XPathExpression;
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import javax.xml.xpath.XPathExpressionException;
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import javax.xml.xpath.XPathFactory;
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import org.w3c.dom.Document;
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import org.xml.sax.ErrorHandler;
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import org.xml.sax.SAXException;
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import org.xml.sax.SAXParseException;
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public class SystemDefinition {
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/**
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* Determines whether the System Definition file is likely to be valid for the System Model Generator
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* Even if this function fails the SMG may still accept the file.
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* @param filename - the path to the System Definition file
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* @throws SystemDefinitionValidationException - Thrown if the parsing of the document fails. If the document parses
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* correctly but does not appear to be a System Definition file a {@link SystemDefinitionValidationFatalException} is thrown.
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*/
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public static void checkValidSystemDefinitionFile(String filename) throws SystemDefinitionValidationException {
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Document doc;
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try {
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doc = createDocument(filename);
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} catch (ParserConfigurationException e) {
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throw new SystemDefinitionValidationException("Problem found when parsing "+filename+".", e);
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} catch (SAXException e) {
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throw new SystemDefinitionValidationException("Problem found when parsing "+filename+".", e);
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} catch (IOException e) {
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throw new SystemDefinitionValidationException("Problem found when reading "+filename+".", e);
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}
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// Check that the file is a system definition file
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if (doc.getDoctype() != null && !doc.getDoctype().getName().equals("SystemDefinition")) {
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throw new SystemDefinitionValidationFatalException(filename + " has the doctype "+doc.getDoctype()+". Where specified, the doctype should be \"SystemDefinition\".");
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}
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}
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public static int coreOSType(String filename)
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throws ParserConfigurationException, SAXException, IOException,
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XPathExpressionException {
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Document doc = createDocument(filename);
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int type = 0;
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XPathFactory factory = XPathFactory.newInstance();
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XPath xpath = factory.newXPath();
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XPathExpression expr = xpath
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.compile("count(//layer[@name='Hardware']) > 0");
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Object result = expr.evaluate(doc, XPathConstants.BOOLEAN);
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if ((Boolean) result) {
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type = 1;
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}
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expr = xpath.compile("count(//layer[@name='HAL']) > 0");
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Object result2 = expr.evaluate(doc, XPathConstants.BOOLEAN);
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if ((Boolean) result2) {
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type = 2;
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}
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return type;
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}
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private static Document createDocument(final String filename)
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throws ParserConfigurationException, SAXException, IOException {
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DocumentBuilderFactory domFactory = DocumentBuilderFactory
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.newInstance();
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domFactory.setNamespaceAware(true);
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domFactory.setValidating(false);
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DocumentBuilder builder = domFactory.newDocumentBuilder();
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ErrorHandler errorHandler = new ErrorHandler() {
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public void error(SAXParseException exception)
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throws SAXParseException {
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throw exception;
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}
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public void fatalError(SAXParseException exception)
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throws SAXParseException {
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throw exception;
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}
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public void warning(SAXParseException exception)
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throws SAXParseException {
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throw exception;
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}
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};
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builder.setErrorHandler(errorHandler);
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Document doc = builder.parse(filename);
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return doc;
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}
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}
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