NonPublicFilter.java example

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/*******************************************************************************
 * Copyright (c) 2009 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
 *     Zend Technologies
 *******************************************************************************/
package org.eclipse.php.internal.ui.filters;

import org.eclipse.dltk.ast.Modifiers;
import org.eclipse.dltk.core.IField;
import org.eclipse.dltk.core.IMethod;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.php.internal.core.Logger;

/**
 * This class filters out the non public elements of a PHP file (default access
 * is considered as public)
 * 
 * @author Eden K., 2008
 * 
 */
public class NonPublicFilter extends ViewerFilter {

	@Override
	public boolean select(Viewer viewer, Object parentElement, Object element) {
		if (element instanceof IMethod) {
			IMethod method = (IMethod) element;
			try {
				if ((method.getFlags() & Modifiers.AccPrivate) != 0
						|| (method.getFlags() & Modifiers.AccProtected) != 0) {
					return false;
				}
			} catch (ModelException e) {
				Logger.logException("Failed activating NonPublicFilter ", e); //$NON-NLS-1$
			}
		} else if (element instanceof IField) {
			IField field = (IField) element;
			try {
				if ((field.getFlags() & Modifiers.AccPrivate) != 0
						|| (field.getFlags() & Modifiers.AccProtected) != 0) {
					return false;
				}
			} catch (ModelException e) {
				Logger.logException("Failed activating NonPublicFilter ", e); //$NON-NLS-1$
			}
		}
		return true;
	}

}