/*
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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 java.util.Set;
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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.wire.Descriptor;
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import org.jbpm.pvm.internal.wire.xml.WireParser;
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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 AssignBinding extends JpdlBinding {
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public AssignBinding() {
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super("assign");
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}
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public Object parseJpdl(Element element, Parse parse, JpdlParser parser) {
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AssignActivity assignActivity = new AssignActivity();
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String variableName = XmlUtil.attribute(element, "var", true, parse);
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assignActivity.setVariableName(variableName);
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String expression = XmlUtil.attribute(element, "expr");
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if (expression!=null) {
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assignActivity.setExpression(expression);
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assignActivity.setLanguage(XmlUtil.attribute(element, "lang"));
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} else {
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Set<String> descriptorTagNames = JpdlParser.wireParser.getBindings().getTagNames(WireParser.CATEGORY_DESCRIPTOR);
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Descriptor valueDescriptor = null;
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List<Element> assignContentElements = XmlUtil.elements(element);
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for (int i=0; ((i<assignContentElements.size()) && (valueDescriptor==null)); i++) {
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Element assignContentElement = assignContentElements.get(i);
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String assignContentElementTagName = XmlUtil.getTagLocalName(assignContentElement);
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if (descriptorTagNames.contains(assignContentElementTagName)) {
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valueDescriptor = parser.parseDescriptor(element, parse);
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}
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}
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assignActivity.setValueDescriptor(valueDescriptor);
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}
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return assignActivity;
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}
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}
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