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/*******************************************************************************
* Copyright (c) 2000, 2004 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.jdt.internal.ui.refactoring.reorg;
import java.util.ArrayList;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaModel;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgDestinationValidator;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.ui.StandardJavaElementContentProvider;
public final class DestinationContentProvider extends StandardJavaElementContentProvider {
private IReorgDestinationValidator fValidator;
public DestinationContentProvider(IReorgDestinationValidator validator) {
super(true);
fValidator= validator;
}
public boolean hasChildren(Object element) {
if (element instanceof IJavaElement){
IJavaElement javaElement= (IJavaElement) element;
if (! fValidator.canChildrenBeDestinations(javaElement))
return false;
if (javaElement.getElementType() == IJavaElement.PACKAGE_FRAGMENT_ROOT){
if (((IPackageFragmentRoot)javaElement).isArchive())
return false;
}
} else if (element instanceof IResource) {
IResource resource= (IResource) element;
if (! fValidator.canChildrenBeDestinations(resource))
return false;
}
return super.hasChildren(element);
}
public Object[] getChildren(Object parentElement) {
try {
if (parentElement instanceof IJavaModel) {
return concatenate(getJavaProjects((IJavaModel)parentElement), getOpenNonJavaProjects((IJavaModel)parentElement));
} else {
Object[] children= super.getChildren(parentElement);
ArrayList result= new ArrayList(children.length);
for (int i= 0; i < children.length; i++) {
if (children[i] instanceof IJavaElement) {
IJavaElement javaElement= (IJavaElement) children[i];
if (fValidator.canElementBeDestination(javaElement) || fValidator.canChildrenBeDestinations(javaElement))
result.add(javaElement);
} else if (children[i] instanceof IResource) {
IResource resource= (IResource) children[i];
if (fValidator.canElementBeDestination(resource) || fValidator.canChildrenBeDestinations(resource))
result.add(resource);
}
}
return result.toArray();
}
} catch (JavaModelException e) {
JavaPlugin.log(e);
return new Object[0];
}
}
private static Object[] getOpenNonJavaProjects(IJavaModel model) throws JavaModelException {
Object[] nonJavaProjects= model.getNonJavaResources();
ArrayList result= new ArrayList(nonJavaProjects.length);
for (int i= 0; i < nonJavaProjects.length; i++) {
IProject project = (IProject) nonJavaProjects[i];
if (project.isOpen())
result.add(project);
}
return result.toArray();
}
}
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