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/*******************************************************************************
* Copyright (c) 2006, 2015 Wind River Systems, Inc. and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.ui.viewsupport;
import java.util.HashMap;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IPath;
import org.eclipse.ui.IWorkingSet;
public class WorkingSetFilter {
private static final Object ACCEPT = new Object();
private static final Object REJECT = new Object();
private HashMap<IPath, Object> fResourceFilter = null;
public synchronized boolean isPartOfWorkingSet(ICElement elem) {
if (fResourceFilter == null) {
return true;
}
if (elem == null) {
return false;
}
IPath path = elem.getPath();
if (path == null) {
return false;
}
Object check = fResourceFilter.get(path);
if (check == null) {
check = checkWorkingSet(path);
fResourceFilter.put(path, check);
}
return check == ACCEPT;
}
public synchronized boolean isPartOfWorkingSet(IPath resourceOrExternalPath) {
if (fResourceFilter == null) {
return true;
}
if (resourceOrExternalPath == null) {
return false;
}
Object check = fResourceFilter.get(resourceOrExternalPath);
if (check == null) {
check = checkWorkingSet(resourceOrExternalPath);
fResourceFilter.put(resourceOrExternalPath, check);
}
return check == ACCEPT;
}
private synchronized Object checkWorkingSet(IPath path) {
if (path.segmentCount() == 0) {
return REJECT;
}
Object result = fResourceFilter.get(path);
if (result == null) {
result = checkWorkingSet(path.removeLastSegments(1));
fResourceFilter.put(path, result);
}
return result;
}
public synchronized void setWorkingSet(IWorkingSet workingSetFilter) {
if (workingSetFilter == null) {
fResourceFilter = null;
} else {
IAdaptable[] input = workingSetFilter.getElements();
fResourceFilter = new HashMap<IPath, Object>();
for (int i = 0; i < input.length; i++) {
IAdaptable adaptable = input[i];
IResource res = adaptable.getAdapter(IResource.class);
if (res != null) {
fResourceFilter.put(res.getFullPath(), ACCEPT);
}
}
}
}
}
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