/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.jpdl.internal.activity;
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import java.util.List;
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import org.jbpm.jpdl.internal.xml.JpdlParser;
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import org.jbpm.pvm.internal.util.XmlUtil;
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import org.jbpm.pvm.internal.xml.Parse;
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import org.w3c.dom.Element;
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/**
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* @author Tom Baeyens
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*/
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public class RulesBinding extends JpdlBinding {
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public RulesBinding() {
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super("rules");
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}
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public Object parseJpdl(Element element, Parse parse, JpdlParser parser) {
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RulesActivity rulesActivity = new RulesActivity();
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List<Element> factElements = XmlUtil.elements(element, "fact");
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for (Element factElement: factElements) {
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RulesFact rulesFact = new RulesFact();
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String factVar = XmlUtil.attribute(factElement, "var");
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if (factVar!=null) {
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rulesFact.setVariableName(factVar);
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} else {
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String factExpr = XmlUtil.attribute(factElement, "expr");
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if (factExpr!=null) {
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String factLang = XmlUtil.attribute(factElement, "lang");
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rulesFact.setExpression(factExpr);
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rulesFact.setLanguage(factLang);
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} else {
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parse.addProblem("'fact' element inside 'rules' activity requires attribute 'var' or 'expr'", element);
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}
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}
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rulesActivity.addRulesFact(rulesFact);
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}
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return rulesActivity;
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}
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}
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