| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.update.internal.configurator; |
| |
| |
| import java.io.*; |
| import java.net.*; |
| import java.util.ResourceBundle; |
| |
| import javax.xml.parsers.*; |
| |
| import org.eclipse.osgi.util.NLS; |
| import org.xml.sax.*; |
| import org.xml.sax.helpers.*; |
| |
| /** |
| * A more complete feature parser. It adds the plugins listed to the feature. |
| */ |
| public class FullFeatureParser extends DefaultHandler implements IConfigurationConstants{ |
| |
| private SAXParser parser; |
| private FeatureEntry feature; |
| private URL url; |
| private boolean isDescription; |
| private StringBuffer description = new StringBuffer(); |
| |
| private final static SAXParserFactory parserFactory = |
| SAXParserFactory.newInstance(); |
| |
| /** |
| * Constructs a feature parser. |
| */ |
| public FullFeatureParser(FeatureEntry feature) { |
| super(); |
| this.feature = feature; |
| try { |
| parserFactory.setNamespaceAware(true); |
| this.parser = parserFactory.newSAXParser(); |
| } catch (ParserConfigurationException e) { |
| System.out.println(e); |
| } catch (SAXException e) { |
| System.out.println(e); |
| } |
| } |
| /** |
| */ |
| public void parse(){ |
| InputStream in = null; |
| try { |
| if (feature.getSite() == null) |
| return; |
| this.url = new URL(feature.getSite().getResolvedURL(), feature.getURL() + FEATURE_XML); |
| in = url.openStream(); |
| parser.parse(new InputSource(in), this); |
| } catch (SAXException e) { |
| } catch (IOException e) { |
| } finally { |
| if (in != null) |
| try { |
| in.close(); |
| } catch (IOException e1) { |
| Utils.log(e1.getLocalizedMessage()); |
| } |
| } |
| } |
| |
| /** |
| * Handle start of element tags |
| * @see DefaultHandler#startElement(String, String, String, Attributes) |
| * @since 2.0 |
| */ |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| |
| Utils.debug("Start Element: uri:" + uri + " local Name:" + localName + " qName:" + qName); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| |
| if ("plugin".equals(localName)) { //$NON-NLS-1$ |
| processPlugin(attributes); |
| } else if ("description".equals(localName)){ //$NON-NLS-1$ |
| isDescription = true; |
| } else if ("license".equals(localName)) { //$NON-NLS-1$ |
| processLicense(attributes); |
| } |
| } |
| |
| /* |
| * Process feature information |
| */ |
| private void processPlugin(Attributes attributes) { |
| |
| // identifier and version |
| String id = attributes.getValue("id"); //$NON-NLS-1$ |
| String ver = attributes.getValue("version"); //$NON-NLS-1$ |
| |
| if (id == null || id.trim().equals("") //$NON-NLS-1$ |
| || ver == null || ver.trim().equals("")) { //$NON-NLS-1$ |
| System.out.println(NLS.bind(Messages.FeatureParser_IdOrVersionInvalid, (new String[] { id, ver}))); |
| } else { |
| // String label = attributes.getValue("label"); //$NON-NLS-1$ |
| // String provider = attributes.getValue("provider-name"); //$NON-NLS-1$ |
| String nl = attributes.getValue("nl"); //$NON-NLS-1$ |
| String os = attributes.getValue("os"); //$NON-NLS-1$ |
| String ws = attributes.getValue("ws"); //$NON-NLS-1$ |
| String arch = attributes.getValue("arch"); //$NON-NLS-1$ |
| if (!Utils.isValidEnvironment(os, ws, arch,nl)) |
| return; |
| |
| PluginEntry plugin = new PluginEntry(); |
| plugin.setPluginIdentifier(id); |
| plugin.setPluginVersion(ver); |
| feature.addPlugin(plugin); |
| |
| Utils. |
| debug("End process DefaultFeature tag: id:" +id + " ver:" +ver + " url:" + feature.getURL()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| } |
| |
| private void processLicense(Attributes attributes ){ |
| feature.setLicenseURL(attributes.getValue("url")); //$NON-NLS-1$ |
| } |
| |
| /* (non-Javadoc) |
| * @see org.xml.sax.ContentHandler#characters(char[], int, int) |
| */ |
| public void characters(char[] ch, int start, int length) |
| throws SAXException { |
| if (!isDescription) |
| return; |
| description.append(ch, start, length); |
| } |
| /* (non-Javadoc) |
| * @see org.xml.sax.ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String) |
| */ |
| public void endElement(String uri, String localName, String qName) |
| throws SAXException { |
| if ("description".equals(localName)) { //$NON-NLS-1$ |
| isDescription = false; |
| String d = description.toString().trim(); |
| ResourceBundle bundle = feature.getResourceBundle(); |
| feature.setDescription(Utils.getResourceString(bundle, d)); |
| } |
| } |
| } |