/*
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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.xml;
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import org.jbpm.internal.log.Log;
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import org.jbpm.pvm.internal.util.TagBinding;
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import org.jbpm.pvm.internal.util.XmlUtil;
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import org.jbpm.pvm.internal.xml.Binding;
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import org.jbpm.pvm.internal.xml.Bindings;
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import org.jbpm.pvm.internal.xml.Parse;
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import org.jbpm.pvm.internal.xml.Parser;
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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 JpdlBindingsParser extends Parser {
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private static final Log log = Log.getLog(JpdlBindingsParser.class.getName());
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public Object parseDocumentElement(Element documentElement, Parse parse) {
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Bindings bindings = (Bindings) parse.contextMapGet(Parse.CONTEXT_KEY_BINDINGS);
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parse.setDocumentObject(bindings);
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for (Element bindingElement : XmlUtil.elements(documentElement)) {
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Binding binding = instantiateBinding(bindingElement, parse);
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bindings.addBinding(binding);
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}
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return bindings;
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}
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protected Binding instantiateBinding(Element bindingElement, Parse parse) {
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String bindingClassName = XmlUtil.attribute(bindingElement, "binding", true, parse);
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log.trace("adding jpdl binding "+bindingClassName);
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if (bindingClassName!=null) {
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try {
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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Class<?> bindingClass = Class.forName(bindingClassName, true, classLoader);
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TagBinding binding = (TagBinding) bindingClass.newInstance();
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String tagLocalName = XmlUtil.getTagLocalName(bindingElement);
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if ("activity".equals(tagLocalName)) {
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binding.setCategory(JpdlParser.CATEGORY_ACTIVITY);
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} else if ("eventlistener".equals(tagLocalName)) {
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binding.setCategory(JpdlParser.CATEGORY_EVENT_LISTENER);
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} else {
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parse.addProblem("unrecognized binding tag: "+tagLocalName);
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}
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return binding;
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} catch (Exception e) {
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parse.addProblem("couldn't instantiate activity binding "+bindingClassName, e);
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}
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}
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return null;
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}
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}
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