/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.jsdt.internal.corext.refactoring.participants;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
public class ResourceProcessors {
public static String[] computeAffectedNatures(IResource resource) throws CoreException {
IProject project= resource.getProject();
Set result= new HashSet();
Set visitedProjects= new HashSet();
computeNatures(result, visitedProjects, project);
return (String[])result.toArray(new String[result.size()]);
}
public static String[] computeAffectedNatures(IResource[] resources) throws CoreException {
Set result= new HashSet();
Set visitedProjects= new HashSet();
for (int i= 0; i < resources.length; i++) {
computeNatures(result, visitedProjects, resources[i].getProject());
}
return (String[])result.toArray(new String[result.size()]);
}
private static void computeNatures(Set result, Set visitedProjects, IProject focus) throws CoreException {
if (visitedProjects.contains(focus))
return;
String[] pns= focus.getDescription().getNatureIds();
for (int p = 0; p < pns.length; p++) {
result.add(pns[p]);
}
visitedProjects.add(focus);
IProject[] referencing= focus.getReferencingProjects();
for (int i= 0; i < referencing.length; i++) {
computeNatures(result, visitedProjects, referencing[i]);
}
}
}