org.fedoraproject.eclipse.packager.git.Activator.java Source code

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Here is the source code for org.fedoraproject.eclipse.packager.git.Activator.java

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/*******************************************************************************
 * Copyright (c) 2010-2011 Red Hat Inc. 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:
 *     Red Hat Inc. - initial API and implementation
 *******************************************************************************/
package org.fedoraproject.eclipse.packager.git;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.statushandlers.StatusManager;
import org.osgi.framework.BundleContext;

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

    /** The symbolic ID of the plugin    */
    public static final String PLUGIN_ID = "org.fedoraproject.eclipse.packager.git"; //$NON-NLS-1$

    // The shared instance
    private static Activator plugin;

    /**
     * The constructor
     */
    public Activator() {
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
     */
    @Override
    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)
     */
    @Override
    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;
    }

    /**
     * Handle an error. The error is logged. If <code>show</code> is
     * <code>true</code> the error is shown to the user.
     *
     * @param message       a localized message
     * @param throwable
     * @param show
     */
    public static void handleError(String message, Throwable throwable, boolean show) {
        IStatus status = new Status(IStatus.ERROR, PLUGIN_ID, message, throwable);
        int style = StatusManager.LOG;
        if (show)
            style |= StatusManager.SHOW;
        StatusManager.getManager().handle(status, style);
    }

    /**
     * @param prefKey
     * @return The set preference for the given key or {@code null} if not set.
     */
    public static String getStringPreference(String prefKey) {
        IPreferenceStore store = getDefault().getPreferenceStore();
        String candidate = store.getString(prefKey);
        if (candidate.equals(IPreferenceStore.STRING_DEFAULT_DEFAULT)) {
            return null;
        }
        return candidate;
    }

    /** 
     * Initializes a preference store with default preference values 
     * for this plug-in.
     */
    @Override
    protected void initializeDefaultPreferences(IPreferenceStore store) {
        store.setDefault(GitPreferencesConstants.PREF_CLONE_BASE_URL, GitUtils.getDefaultGitBaseUrl());
    }

}