001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.transformer.cfml.attributes.impl;
020
021import lucee.transformer.bytecode.expression.Expression;
022import lucee.transformer.bytecode.literal.LitBoolean;
023import lucee.transformer.bytecode.statement.tag.Attribute;
024import lucee.transformer.bytecode.statement.tag.Tag;
025import lucee.transformer.cfml.attributes.AttributeEvaluator;
026import lucee.transformer.cfml.attributes.AttributeEvaluatorException;
027import lucee.transformer.library.tag.TagLibTag;
028
029/**
030 * Attribute Evaluator for the tag Function
031 */
032public final class Component implements AttributeEvaluator {
033
034    /**
035     * @see lucee.transformer.cfml.attributes.AttributeEvaluator#evaluate(lucee.transformer.library.tag.TagLibTag, org.w3c.dom.Element)
036     */
037    public TagLibTag evaluate( TagLibTag tagLibTag, Tag tag) throws AttributeEvaluatorException {
038                tagLibTag.setParseBody(false);
039                Attribute attr = tag.getAttribute("output");
040                if(attr!=null) {
041                        Expression expr = attr.getValue();
042                        
043                        if(!(expr instanceof LitBoolean))
044                                throw new AttributeEvaluatorException("Attribute output of the Tag Component, must be a static boolean value (true or false)");
045                        if(((LitBoolean)expr).getBooleanValue())
046                                tagLibTag.setParseBody(true);
047                }
048        return tagLibTag;
049    }
050}