| /******************************************************************************* |
| * Copyright (c) 2004, 2008 Tasktop Technologies 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: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.examples.xml.core; |
| |
| import java.io.File; |
| import java.io.FileFilter; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.osgi.util.NLS; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * @author Steffen Pingel |
| */ |
| public class XmlClient { |
| |
| public static final Pattern ID_PATTERN = Pattern.compile("task(.*)\\.xml"); |
| |
| private final File location; |
| |
| private volatile XmlConfiguration configuration = new XmlConfiguration(); |
| |
| public XmlClient(File location) { |
| this.location = location; |
| } |
| |
| public final File getLocation() { |
| return location; |
| } |
| |
| public final XmlConfiguration getConfiguration() { |
| return configuration; |
| } |
| |
| public final boolean hasConfiguration() { |
| return configuration.updated != -1; |
| } |
| |
| public final File[] listTasks(IProgressMonitor monitor) { |
| return location.listFiles(new FileFilter() { |
| public boolean accept(File file) { |
| return ID_PATTERN.matcher(file.getName()).matches(); |
| } |
| }); |
| } |
| |
| public XmlConfiguration updateConfiguration(IProgressMonitor monitor) throws CoreException { |
| File file = new File(location, "configuration.xml"); |
| try { |
| // open as dom |
| DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| DocumentBuilder loader = factory.newDocumentBuilder(); |
| Document document = loader.parse(file); |
| Element input = document.getDocumentElement(); |
| |
| XmlConfiguration configuration = new XmlConfiguration(); |
| configuration.updated = file.lastModified(); |
| |
| // read configuration from dom |
| NodeList nodes = input.getElementsByTagName("project"); |
| List<String> projects = new ArrayList<String>(nodes.getLength()); |
| for (int i = 0; i < nodes.getLength(); i++) { |
| projects.add(nodes.item(i).getTextContent()); |
| } |
| configuration.setProjects(projects); |
| |
| // commit configuration |
| this.configuration = configuration; |
| |
| return configuration; |
| } catch (Exception e) { |
| throw new CoreException(new Status(IStatus.ERROR, XmlCorePlugin.ID_PLUGIN, NLS.bind( |
| "Error reading configuration {0}", file.getAbsolutePath()), e)); |
| } |
| } |
| |
| public File getTask(String taskId, IProgressMonitor monitor) { |
| return new File(getLocation(), "task" + taskId + ".xml"); |
| } |
| |
| } |