| /******************************************************************************* |
| * Copyright (c) 2006 Sybase, 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.jsp.core.el; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.commons.el.ComplexValue; |
| import org.apache.commons.el.NamedValue; |
| |
| /** |
| * |
| * @author mengbo |
| * @version 1.5 |
| */ |
| public class ELParser { |
| private String _jsfExpression; |
| |
| private List _expressionList; |
| |
| /** |
| * |
| */ |
| public ELParser(String expression) { |
| super(); |
| _jsfExpression = expression; |
| init(); |
| } |
| |
| /** |
| * |
| */ |
| private void init() { |
| Object parsedExpression = JSFELParserHelper |
| .parseExpression(_jsfExpression); |
| |
| if (parsedExpression instanceof ComplexValue) { |
| _expressionList = new ArrayList(); |
| _expressionList.add(((ComplexValue) parsedExpression).getPrefix()); |
| _expressionList.addAll(((ComplexValue) parsedExpression) |
| .getSuffixes()); |
| } else if (parsedExpression instanceof NamedValue) { |
| _expressionList = new ArrayList(); |
| _expressionList.add(parsedExpression); |
| } |
| |
| } |
| |
| public Object[] getElements() { |
| if (_expressionList == null) { |
| return null; |
| } |
| |
| return _expressionList.toArray(); |
| } |
| } |