addfeaturesaction.java

eclise rcp 项目,是非常好的学习源码

/*******************************************************************************
 * Copyright (c) 2007 Siemens AG
 * 
 * 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:
 *    Kai T鰀ter - initial API and implementation
 *******************************************************************************/

package com.siemens.ct.mp3m.ui.update;

import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.core.runtime.Plugin;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.update.search.BackLevelFilter;
import org.eclipse.update.search.EnvironmentFilter;
import org.eclipse.update.search.UpdateSearchRequest;
import org.eclipse.update.search.UpdateSearchScope;
import org.eclipse.update.ui.UpdateJob;
import org.eclipse.update.ui.UpdateManagerUI;

/**
 * Action to look for new features to install.
 */
public class AddFeaturesAction extends AbstractUpdateAction {

	protected void run(final IWorkbenchWindow window) {
		BusyIndicator.showWhile(window.getShell().getDisplay(), new Runnable() {
			public void run() {
				UpdateJob job = new UpdateJob(Messages
						.getString("AddFeaturesAction.searchForNewFeatures"), getSearchRequest()); //$NON-NLS-1$
				job.setUser(true);
				job.setPriority(Job.INTERACTIVE);
				UpdateManagerUI.openInstaller(window.getShell(), job);
			}
		});
	}

	private UpdateSearchRequest getSearchRequest() {

		// get the preference for the update site
		Plugin plugin = UpdatePlugin.getDefault();
		Preferences prefs = plugin.getPluginPreferences();
		String updateSite = prefs.getString("updateSite");
		System.out.println("AddFeaturesAction.getSearchRequest(): " + updateSite);

		UpdateSearchRequest result = new UpdateSearchRequest(UpdateSearchRequest
				.createDefaultSiteSearchCategory(), new UpdateSearchScope());
		result.addFilter(new BackLevelFilter());
		result.addFilter(new EnvironmentFilter());
		UpdateSearchScope scope = new UpdateSearchScope();
		try {
			scope.addSearchSite(
					"MP3 Manager site", new URL(updateSite), null); //$NON-NLS-1$ //$NON-NLS-2$
		} catch (MalformedURLException e) {
			// do nothing
		}
		result.setScope(scope);
		return result;
	}
}