org.eclipse.osbp.ui.api/src/org/eclipse/osbp/ui/initialization/AbstractInitializationListener.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * 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:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.ui.initialization;

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

public abstract class AbstractInitializationListener implements IInitializationListener {

	private IInitializationNotification lastNotification = null;
	
	@Override
	public void resendLastNotification() {
		if	(lastNotification instanceof InitializationDoneNotification) {
			notifyInitializationDone(lastNotification);
		}
		else if (lastNotification instanceof InitializationNotification) {
			notifyInitializationStep(lastNotification);
		}
	}

	private Set<IInitializationProvider> initializationProviders = new HashSet<IInitializationProvider>();
	
	/* (non-Javadoc)
	 * @see org.eclipse.osbp.ui.initialization.IInitializationListener#bindInitializationProvider(org.eclipse.osbp.ui.initialization.AbstractInitializationProvider)
	 */
	@Override
	public void addInitializationProvider(IInitializationProvider provider) {
		initializationProviders.add(provider);
		provider.addInitializationListener(this);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.osbp.ui.initialization.IInitializationListener#unbindInitializationProvider(org.eclipse.osbp.ui.initialization.IInitializationProvider)
	 */
	@Override
	public void removeInitializationProvider(IInitializationProvider provider) {
		initializationProviders.remove(provider);
		provider.removeInitializationListener(this);
	}
	
	protected void removeAllInitializationProviders() {
		for	(IInitializationProvider provider : initializationProviders) {
			removeInitializationProvider(provider);
		}
	}
	
	protected boolean hasInitializationToBeDone() {
		for	(IInitializationProvider provider : initializationProviders) {
			if	(provider.hasInitializationToBeDone()) {
				return true;
			}
		}
		return false;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.osbp.ui.initialization.IInitializationListener#notifyInitializationStep(org.eclipse.osbp.ui.initialization.InitializationNotification)
	 */
	@Override
	public synchronized void notifyInitializationStep(IInitializationNotification notification) {
		lastNotification = notification;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.osbp.ui.initialization.IInitializationListener#notifyInitializationDone(org.eclipse.osbp.ui.initialization.InitializationDoneNotification)
	 */
	@Override
	public synchronized void notifyInitializationDone(IInitializationNotification notification) {
		lastNotification = notification;
		// unbindInitializationProvider(notification.getInitializationProvider());
	}
}