/*******************************************************************************
* Copyright (c) 2005, 2011 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
* James Blackburn (Broadcom Corp.) - ongoing development
*******************************************************************************/
package org.eclipse.core.resources.mapping;
import java.util.*;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.*;
/**
* A resource mapping that obtains the traversals for its model object
* from a set of child mappings.
* <p>
* This class is not intended to be subclasses by clients.
*
* @since 3.2
*/
public final class CompositeResourceMapping extends ResourceMapping {
private final ResourceMapping[] mappings;
private final Object modelObject;
private IProject[] projects;
private String providerId;
/**
* Create a composite mapping that obtains its traversals from a set of sub-mappings.
* @param modelObject the model object for this mapping
* @param mappings the sub-mappings from which the traversals are obtained
*/
public CompositeResourceMapping(String providerId, Object modelObject, ResourceMapping[] mappings) {
this.modelObject = modelObject;
this.mappings = mappings;
this.providerId = providerId;
}
/* (non-Javadoc)
* @see org.eclipse.core.resources.mapping.ResourceMapping#contains(org.eclipse.core.resources.mapping.ResourceMapping)
*/
public boolean contains(ResourceMapping mapping) {
for (int i = 0; i < mappings.length; i++) {
ResourceMapping childMapping = mappings[i];
if (childMapping.contains(mapping)) {
return true;
}
}
return false;
}
/**
* Return the resource mappings contained in this composite.
* @return Return the resource mappings contained in this composite.
*/
public ResourceMapping[] getMappings() {
return mappings;
}
/* (non-Javadoc)
* @see org.eclipse.core.resources.mapping.ResourceMapping#getModelObject()
*/
public Object getModelObject() {
return modelObject;
}
/* (non-Javadoc)
* @see org.eclipse.core.resources.mapping.ResourceMapping#getModelProviderId()
*/
public String getModelProviderId() {
return providerId;
}
/* (non-Javadoc)
* @see org.eclipse.core.resources.mapping.ResourceMapping#getProjects()
*/
public IProject[] getProjects() {
if (projects == null) {
Set<IProject> result = new HashSet<IProject>();
for (int i = 0; i < mappings.length; i++) {
ResourceMapping mapping = mappings[i];
result.addAll(Arrays.asList(mapping.getProjects()));
}
projects = result.toArray(new IProject[result.size()]);
}
return projects;
}
/* (non-Javadoc)
* @see org.eclipse.core.resources.mapping.ResourceMapping#getTraversals(org.eclipse.core.internal.resources.mapping.ResourceMappingContext, org.eclipse.core.runtime.IProgressMonitor)
*/
public ResourceTraversal[] getTraversals(ResourceMappingContext context, IProgressMonitor monitor) throws CoreException {
if (monitor == null)
monitor = new NullProgressMonitor();
try {
monitor.beginTask("", 100 * mappings.length); //$NON-NLS-1$
List<ResourceTraversal> result = new ArrayList<ResourceTraversal>();
for (int i = 0; i < mappings.length; i++) {
ResourceMapping mapping = mappings[i];
result.addAll(Arrays.asList(mapping.getTraversals(context, new SubProgressMonitor(monitor, 100))));
}
return result.toArray(new ResourceTraversal[result.size()]);
} finally {
monitor.done();
}
}
}