/**

  * This file is derived from Hamcrest's  {@link org.hamcrest.generator.config.XmlConfigurator} class.

  * Portions modified by Ketan Padegaonkar are provided under the EPL.

  *

  * Copyright (c) 2008 Ketan Padegaonkar and others.

  * All rights reserved. This program and the accompanying materials

  * are made available under the terms of the Eclipse Public License v1.0

  * which accompanies this distribution, and is available at

  * http://www.eclipse.org/legal/epl-v10.html

  *

  * Contributors:

  *     Ketan Padegaonkar - initial API and implementation

  *******************************************************************************/

 package org.eclipse.swtbot.generator;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import javax.xml.parsers.ParserConfigurationException;

 import javax.xml.parsers.SAXParser;

 import javax.xml.parsers.SAXParserFactory;

 import org.xml.sax.Attributes;

 import org.xml.sax.InputSource;

 import org.xml.sax.SAXException;

 import org.xml.sax.helpers.DefaultHandler;

 public class XmlConfigurator {

         private final SugarGenerator        sugarConfiguration;

         private final SAXParserFactory        saxParserFactory;

         public XmlConfigurator(SugarGenerator sugarConfiguration, ClassLoader classLoader) {

                 this.sugarConfiguration = sugarConfiguration;

                 saxParserFactory = SAXParserFactory.newInstance();

                 saxParserFactory.setNamespaceAware(true);

         }

         public void load(InputSource inputSource) throws ParserConfigurationException, SAXException, IOException {

                 SAXParser saxParser = saxParserFactory.newSAXParser();

                 saxParser.parse(inputSource, new DefaultHandler() {

                         @Override

                         public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {

                                 if (localName.equals("widget")) { //$NON-NLS-1$

                                         String className = attributes.getValue("class"); //$NON-NLS-1$

                                         try {

                                                 addClass(className);

                                         } catch (ClassNotFoundException e) {

                                                 throw new SAXException("Cannot find Matcher class : " + className); //$NON-NLS-1$

                                         }

                                 }

                         }

                 });

         }

         private void addClass(String className) throws ClassNotFoundException {

                 sugarConfiguration.addFactoryMethods(new SWTBotGeneratorFactoryReader(className));

                 sugarConfiguration.addImports(new SWTBotGeneratorFactoryReader(className));

         }

         public static void main(String configFile, String fullClassName, String superClass, File outputDir) throws Exception {

                 String fileName = fullClassName.replace('.', File.separatorChar) + ".java"; //$NON-NLS-1$

                 int dotIndex = fullClassName.lastIndexOf("."); //$NON-NLS-1$

                 String packageName = dotIndex == -1 ? "" : fullClassName.substring(0, dotIndex); //$NON-NLS-1$

                 String shortClassName = fullClassName.substring(dotIndex + 1);

                 if (!outputDir.isDirectory()) {

                         System.err.println("Output directory not found : " + outputDir.getAbsolutePath()); //$NON-NLS-1$

                         System.exit(-1);

                 }

                 File outputFile = new File(outputDir, fileName);

                 outputFile.getParentFile().mkdirs();

                 SugarGenerator sugarGenerator = new SugarGenerator();

                 try {

                         sugarGenerator.addWriter(new HamcrestFactoryWriter(packageName, shortClassName, superClass, new FileWriter(outputFile)));

                         sugarGenerator.addWriter(new QuickReferenceWriter(System.out));

                         XmlConfigurator xmlConfigurator = new XmlConfigurator(sugarGenerator, XmlConfigurator.class.getClassLoader());

                         xmlConfigurator.load(new InputSource(configFile));

                         System.out.println("Generating " + fullClassName); //$NON-NLS-1$

                         sugarGenerator.generate();

                 } finally {

                         sugarGenerator.close();

                 }

         }

 }