Copyright (c) 2006, 2017 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2006, 2017 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 * IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.team.internal.core;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.team.core.RepositoryProvider;

public class RepositoryProviderManager implements IRepositoryProviderListener {

	private static RepositoryProviderManager instance;
	private ListenerList<IRepositoryProviderListener> listeners = new ListenerList<>();

	public static synchronized RepositoryProviderManager getInstance() {
		if (instance == null) {
			instance = new RepositoryProviderManager();
		}
		return instance;
	}

	@Override
	public void providerMapped(RepositoryProvider provider) {
		Object[] allListeners = listeners.getListeners();
		for (Object l : allListeners) {
			IRepositoryProviderListener listener = (IRepositoryProviderListener) l;
			listener.providerMapped(provider);
		}
	}

	@Override
	public void providerUnmapped(IProject project) {
		Object[] allListeners = listeners.getListeners();
		for (Object l : allListeners) {
			IRepositoryProviderListener listener = (IRepositoryProviderListener) l;
			listener.providerUnmapped(project);
		}
	}

	public void addListener(IRepositoryProviderListener listener) {
		listeners.add(listener);
	}

	public void removeListener(IRepositoryProviderListener listener) {
		listeners.remove(listener);
	}


}