/*
 * Copyright (c) 2004-2011 Marco Maccaferri 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:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.ui.internal;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.IStartup;
import org.eclipsetrader.core.ILauncher;

public class LaunchersStartup implements IStartup {

    public static final String LAUNCHERS_EXTENSION_ID = "org.eclipsetrader.core.launchers";

    public LaunchersStartup() {
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IStartup#earlyStartup()
     */
    @Override
    public void earlyStartup() {
        IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(LAUNCHERS_EXTENSION_ID);
        if (extensionPoint != null) {
            IConfigurationElement[] configElements = extensionPoint.getConfigurationElements();
            Set<String> set = new HashSet<String>(Arrays.asList(UIActivator.getDefault().getPreferenceStore().getString("STARTUP_LAUNCHERS").split(";")));

            for (int j = 0; j < configElements.length; j++) {
                String id = configElements[j].getAttribute("id"); //$NON-NLS-1$
                if (set.contains(id)) {
                    try {
                        ILauncher launcher = (ILauncher) configElements[j].createExecutableExtension("class");
                        if (launcher != null) {
                            launcher.launch(new NullProgressMonitor());
                        }
                    } catch (Exception e) {
                        Status status = new Status(IStatus.ERROR, UIActivator.PLUGIN_ID, 0, "Error launching " + id, e);
                        UIActivator.getDefault().getLog().log(status);
                    }
                }
            }
        }
    }
}