| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.updatesite; |
| |
| import java.io.*; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import javax.xml.parsers.*; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.equinox.internal.p2.core.helpers.LogHelper; |
| import org.eclipse.equinox.internal.p2.publisher.eclipse.FeatureManifestParser; |
| import org.eclipse.equinox.p2.publisher.eclipse.Feature; |
| import org.eclipse.osgi.util.NLS; |
| import org.xml.sax.*; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| /** |
| * Default feature parser. |
| * Parses the feature manifest file as defined by the platform. |
| * |
| * @since 3.0 |
| */ |
| public class DigestParser extends DefaultHandler { |
| |
| private final static SAXParserFactory parserFactory = SAXParserFactory.newInstance(); |
| private SAXParser parser; |
| private final List<Feature> features = new ArrayList<Feature>(); |
| private final FeatureManifestParser featureHandler = new FeatureManifestParser(false); |
| |
| public DigestParser() { |
| super(); |
| try { |
| parserFactory.setNamespaceAware(true); |
| this.parser = parserFactory.newSAXParser(); |
| } catch (ParserConfigurationException e) { |
| System.out.println(e); |
| } catch (SAXException e) { |
| System.out.println(e); |
| } |
| } |
| |
| public void characters(char[] ch, int start, int length) throws SAXException { |
| featureHandler.characters(ch, start, length); |
| } |
| |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| if ("digest".equals(localName)) { //$NON-NLS-1$ |
| return; |
| } |
| if ("feature".equals(localName)) { //$NON-NLS-1$ |
| Feature feature = featureHandler.getResult(); |
| features.add(feature); |
| } else |
| featureHandler.endElement(uri, localName, qName); |
| } |
| |
| public Feature[] parse(File localFile, URI location) { |
| if (!localFile.exists()) |
| return null; |
| |
| if (location == null) |
| location = localFile.toURI(); |
| |
| JarFile jar = null; |
| InputStream is = null; |
| try { |
| jar = new JarFile(localFile); |
| JarEntry entry = jar.getJarEntry("digest.xml"); //$NON-NLS-1$ |
| if (entry == null) |
| return null; |
| is = new BufferedInputStream(jar.getInputStream(entry)); |
| parser.parse(new InputSource(is), this); |
| return features.toArray(new Feature[features.size()]); |
| } catch (IOException e) { |
| LogHelper.log(new Status(IStatus.ERROR, Activator.ID, NLS.bind(Messages.ErrorReadingDigest, location), e)); |
| } catch (SAXException e) { |
| LogHelper.log(new Status(IStatus.ERROR, Activator.ID, NLS.bind(Messages.ErrorReadingDigest, location), e)); |
| } finally { |
| try { |
| if (is != null) |
| is.close(); |
| } catch (IOException e1) { |
| // |
| } |
| try { |
| if (jar != null) |
| jar.close(); |
| } catch (IOException e) { |
| // |
| } |
| } |
| return null; |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| if ("digest".equals(localName)) { //$NON-NLS-1$ |
| return; |
| } |
| featureHandler.startElement(uri, localName, qName, attributes); |
| } |
| |
| } |