FSTreeNodePropertyTester.java

/*******************************************************************************
 * Copyright (c) 2011 Wind River Systems, Inc. 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:
 * Wind River Systems - initial API and implementation
 * William Chen (Wind River) - [345387]Open the remote files with a proper editor
 * William Chen (Wind River) - [352302]Opening a file in an editor depending on
 *                             the client's permissions.
 *******************************************************************************/
package org.eclipse.tm.te.tcf.filesystem.internal.handlers;

import java.io.File;

import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.core.runtime.Assert;
import org.eclipse.tm.te.tcf.filesystem.model.CacheState;
import org.eclipse.tm.te.tcf.filesystem.model.FSTreeNode;

/**
 * The property tester of an FSTreeNode. The properties include "isFile"
 * if it is a file node, "isDirectory" if it is a directory, "isBinaryFile"
 * if it is a binary file, "isReadable" if it is readable, "isWritable" if
 * it is writable, "isExecutable" if it is executable and "getCacheState" to
 * get a node's state.
 */
public class FSTreeNodePropertyTester extends PropertyTester {

	/* (non-Javadoc)
	 * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
	 */
	@Override
	public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
		Assert.isTrue(receiver instanceof FSTreeNode);
		FSTreeNode node = (FSTreeNode) receiver;
		if (property.equals("isFile")) { //$NON-NLS-1$
			return node.isFile();
		} else if (property.equals("isDirectory")) { //$NON-NLS-1$
			return node.isDirectory();
		} else if (property.equals("isBinaryFile")) { //$NON-NLS-1$
			return ContentTypeHelper.getInstance().isBinaryFile(node);
		} else if (property.equals("isReadable")){ //$NON-NLS-1$
			return node.isReadable();
		} else if (property.equals("isWritable")){ //$NON-NLS-1$
			return node.isWritable();
		} else if (property.equals("isExecutable")){ //$NON-NLS-1$
			return node.isExecutable();
		} else if (property.equals("getCacheState")){ //$NON-NLS-1$
			File file = CacheManager.getInstance().getCacheFile(node);
			if(!file.exists())
				return false;
			CacheState state = StateManager.getInstance().getCacheState(node);
			return state.name().equals(expectedValue);
		}
		return false;
	}
}