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/*******************************************************************************
* Copyright (c) 2010, 2012 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.core.internal;
import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.jst.common.project.facet.core.libprov.ILibraryProvider;
/**
* Property tester for {@link ILibraryProvider}.
* See <code>org.eclipse.jpt.common.core/plugin.xml</code>
*/
public class LibraryProviderPropertyTester
extends PropertyTester
{
public static final String ID = "id"; //$NON-NLS-1$
public static final String EXTENDS_ID = "extendsId"; //$NON-NLS-1$
public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
if (receiver instanceof ILibraryProvider) {
return this.test((ILibraryProvider) receiver, property, expectedValue);
}
return false;
}
private boolean test(ILibraryProvider libraryProvider, String property, Object expectedValue) {
if (property.equals(ID)) {
return libraryProvider.getId().equals(expectedValue);
}
if (property.equals(EXTENDS_ID)) {
while (libraryProvider != null) {
if (libraryProvider.getId().equals(expectedValue)) {
return true;
}
libraryProvider = libraryProvider.getBaseProvider();
}
return false;
}
return false;
}
}
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