/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.internal.ide;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.ui.IContributorResourceAdapter;

/**
 * The DefaultContributorResourceAdapter is the default
 * implementation of the IContributorResourceAdapter used for 
 * one to one resource adaption.
 */
public class DefaultContributorResourceAdapter implements
        IContributorResourceAdapter {

    private static IContributorResourceAdapter singleton;

    /**
     * Constructor for DefaultContributorResourceAdapter.
     */
    public DefaultContributorResourceAdapter() {
        super();
    }

    /**
     * Return the default instance used for TaskList adapting.
     */
    public static IContributorResourceAdapter getDefault() {
        if (singleton == null)
            singleton = new DefaultContributorResourceAdapter();
        return singleton;
    }

    /*
     * @see IContributorResourceAdapter#getAdaptedResource(IAdaptable)
     */
    public IResource getAdaptedResource(IAdaptable adaptable) {
        return (IResource) adaptable.getAdapter(IResource.class);
    }
}