Activator.java

package mit.edu.concurrencyrefactorings.tests;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IWorkspaceDescription;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "mit.edu.concurrencyRefactorings.tests";

	// The shared instance
	private static Activator plugin;
	
	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}
	
	public static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}
	
	public static void enableAutobuild(boolean enable) throws CoreException {
		// disable auto build
		IWorkspace workspace= getWorkspace();
		IWorkspaceDescription desc= workspace.getDescription();
		desc.setAutoBuilding(enable);
		workspace.setDescription(desc);
	}

	public File getFileInPlugin(IPath path) throws CoreException {
		try {
			URL installURL= new URL(getBundle().getEntry("/"), path.toString());
			URL localURL= FileLocator.toFileURL(installURL);
			return new File(localURL.getFile());
		} catch (IOException e) {
			throw new CoreException(new Status(IStatus.ERROR, getPluginId(), IStatus.ERROR, e.getMessage(), e));
		}
	}
	
	public static String getPluginId() {
		return PLUGIN_ID;
	}

	public static void log(IStatus status) {
		getDefault().getLog().log(status);
	}
	
	public static void logErrorMessage(String message) {
		log(new Status(IStatus.ERROR, getPluginId(), IStatus.ERROR, message, null));
	}

	public static void logErrorStatus(String message, IStatus status) {
		if (status == null) {
			logErrorMessage(message);
			return;
		}
		MultiStatus multi= new MultiStatus(getPluginId(), IStatus.ERROR, message, null);
		multi.add(status);
		log(multi);
	}
	
	public static void log(Throwable e) {
		log(new Status(IStatus.ERROR, getPluginId(), IStatus.ERROR, e.getMessage(), e)); //$NON-NLS-1$
	}	
	
	public InputStream getTestResourceStream(String fileName) throws IOException {
		IPath path= new Path("resources").append(fileName);
		URL url= new URL(getBundle().getEntry("/"), path.toString());
		return url.openStream();
	}

}