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package org.eclipse.jpt.core.internal.emfutility;
import java.util.Iterator;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.iterators.EmptyIterator;
import org.eclipse.jpt.utility.internal.iterators.FilteringIterator;
import org.eclipse.jpt.utility.internal.iterators.TreeIterator;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualFile;
import org.eclipse.wst.common.componentcore.resources.IVirtualFolder;
import org.eclipse.wst.common.componentcore.resources.IVirtualResource;
public class ComponentUtilities
{
/**
* Return the deployment path for the given source file. If there is no
* corresponding deployment file, null will be returned.
*/
public static IPath computeDeployPath(IFile sourceFile) {
// Unfortunately, the only current way to do this is to exhaustively
// search all deployment files and attempt to match to this file.
// Bug 202943 has been logged to track this issue.
for (IVirtualFile virtualFile : CollectionTools.iterable(allVirtualFiles(sourceFile.getProject()))) {
for (IFile underlyingFile : virtualFile.getUnderlyingFiles()) {
if (sourceFile.equals(underlyingFile)) {
return virtualFile.getRuntimePath();
}
}
}
return null;
}
private static Iterator<IVirtualFile> allVirtualFiles(IProject project) {
return new FilteringIterator<IVirtualFile>(allVirtualResources(project)) {
@Override
protected boolean accept(Object o) {
return ((IVirtualResource) o).getType() == IVirtualResource.FILE;
}
};
}
private static Iterator<IVirtualResource> allVirtualResources(IProject project) {
IVirtualComponent virtualComponent = ComponentCore.createComponent(project);
if (virtualComponent == null) {
return EmptyIterator.instance();
}
return new TreeIterator<IVirtualResource>(virtualComponent.getRootFolder()) {
@Override
protected Iterator<? extends IVirtualResource> children(IVirtualResource next) {
if (next.getType() == IVirtualResource.FOLDER) {
try {
return CollectionTools.iterator(((IVirtualFolder) next).members());
}
catch (CoreException ce) { /* fall through, return default case */ }
}
return EmptyIterator.instance();
}
};
}
}
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