TestRoots/watchdog

package nl.tudelft.watchdog.eclipse;

import java.lang.Thread.UncaughtExceptionHandler;

import org.eclipse.core.runtime.preferences.ConfigurationScope;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
import org.osgi.framework.BundleContext;

import nl.tudelft.watchdog.core.util.WatchDogGlobals;
import nl.tudelft.watchdog.core.util.WatchDogLogger;

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

    /** The plug-in ID */
    public static final String PLUGIN_ID = "nl.tudelft.WatchDog";

    /** The shared instance */
    private static Activator plugin;

    /** Our preferenceStore. */
    private ScopedPreferenceStore preferenceStore;

    @Override
    public void start(BundleContext context) throws Exception {
        super.start(context);
        plugin = this;

        Thread.setDefaultUncaughtExceptionHandler(
                new UncaughtExceptionHandler() {
                    @Override
                    public void uncaughtException(Thread t, Throwable e) {
                        WatchDogLogger.getInstance().logSevere(e);
                    }
                });
    }

    @Override
    public void stop(BundleContext context) throws Exception {
        WatchDogLogger.getInstance().logInfo("Shutting down Plugin...");
        plugin = null;
        WatchDogGlobals.isActive = false;
        preferenceStore.save();
        super.stop(context);
    }

    /** Returns the shared instance. */
    public static Activator getDefault() {
        return plugin;
    }

    /**
     * We are overriding the default-wise returned preference store which has an
     * {@link InstanceScope} only saving the workbench state to the
     * {@link ConfigurationScope}, which has an Eclipse-wide configuration
     * scope.
     */
    @Override
    public IPreferenceStore getPreferenceStore() {
        if (preferenceStore == null) {
            preferenceStore = new ScopedPreferenceStore(
                    ConfigurationScope.INSTANCE, getBundle().getSymbolicName());
        }
        return preferenceStore;
    }

}