/*******************************************************************************
 * Copyright (c) 2005 The Regents of the University of California. 
 * This material was produced under U.S. Government contract W-7405-ENG-36 
 * for Los Alamos National Laboratory, which is operated by the University 
 * of California for the U.S. Department of Energy. The U.S. Government has 
 * rights to use, reproduce, and distribute this software. NEITHER THE 
 * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR 
 * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified 
 * to produce derivative works, such modified software should be clearly marked, 
 * so as not to confuse it with the version available from LANL.
 * 
 * Additionally, 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
 * 
 * LA-CC 04-115
 *******************************************************************************/
package org.eclipse.ptp.debug.internal.core.sourcelookup;

import java.util.ArrayList;
import java.util.Arrays;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.debug.core.sourcelookup.ISourceContainer;
import org.eclipse.debug.core.sourcelookup.ISourcePathComputerDelegate;
import org.eclipse.debug.core.sourcelookup.containers.ProjectSourceContainer;
import org.eclipse.ptp.core.IPTPLaunchConfigurationConstants;
import org.eclipse.ptp.debug.core.PTPDebugCorePlugin;

/**
 * @author clement
 * Computes the default source lookup path for a launch configuration.
 */
public class PSourcePathComputerDelegate implements ISourcePathComputerDelegate {
	public PSourcePathComputerDelegate() {
		super();
	}
	public ISourceContainer[] computeSourceContainers(ILaunchConfiguration configuration, IProgressMonitor monitor) throws CoreException {
		ISourceContainer[] common = PTPDebugCorePlugin.getDefault().getCommonSourceLookupDirector().getSourceContainers();
		ArrayList<ISourceContainer> containers = new ArrayList<ISourceContainer>(common.length + 1);
		containers.addAll(Arrays.asList(common));
		String projectName = configuration.getAttribute(IPTPLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
		if (projectName != null) {
			IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projectName);
			if (project.exists()) {
				containers.add(0, new ProjectSourceContainer(project, true));
			}
		}
		return (ISourceContainer[]) containers.toArray(new ISourceContainer[containers.size()]);
	}
}