/*
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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.pvm.internal.wire.binding;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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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.descriptor.MapDescriptor;
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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.jbpm.pvm.internal.xml.Parser;
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import org.w3c.dom.Element;
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/** parses a descriptor for creating a {@link java.util.Map}.
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*
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* See schema docs for more details.
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*
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* @author Tom Baeyens
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* @author Guillaume Porcher (documentation)
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*/
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public class MapBinding extends WireDescriptorBinding {
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public MapBinding() {
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super("map");
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}
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public Object parse(Element element, Parse parse, Parser parser) {
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MapDescriptor descriptor = new MapDescriptor();
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String className = XmlUtil.attribute(element,"class");
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if (AbstractCollectionBinding.verify(className, Map.class, parse, parser)) {
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descriptor.setClassName(className);
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}
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Boolean isSynchronized = XmlUtil.attributeBoolean(element, "synchronized", false, parse);
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if (isSynchronized!=null) {
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descriptor.setSynchronized(isSynchronized.booleanValue());
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}
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List<Descriptor> keyDescriptors = new ArrayList<Descriptor>();
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List<Descriptor> valueDescriptors = new ArrayList<Descriptor>();
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List<Element> elements = XmlUtil.elements(element);
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for (Element entryElement: elements) {
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if ("entry".equals(XmlUtil.getTagLocalName(entryElement))) {
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// key
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Element keyElement = XmlUtil.element(entryElement, "key");
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Element keyDescriptorElement = (keyElement!=null ? XmlUtil.element(keyElement) : null);
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Descriptor keyDescriptor = (Descriptor) parser.parseElement(keyDescriptorElement, parse, WireParser.CATEGORY_DESCRIPTOR);
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// value
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Element valueElement = XmlUtil.element(entryElement, "value");
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Element valueDescriptorElement = (valueElement!=null ? XmlUtil.element(valueElement) : null);
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Descriptor valueDescriptor = (Descriptor) parser.parseElement(valueDescriptorElement, parse, WireParser.CATEGORY_DESCRIPTOR);
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if ( (keyDescriptor!=null)
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&& (valueDescriptor!=null)
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) {
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keyDescriptors.add(keyDescriptor);
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valueDescriptors.add(valueDescriptor);
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} else {
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parse.addProblem("entry must have key and value element with a single descriptor as contents: "+XmlUtil.toString(entryElement), element);
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}
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} else {
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parse.addProblem("map can only contain entry elements: "+XmlUtil.toString(entryElement));
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}
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}
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descriptor.setKeyDescriptors(keyDescriptors);
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descriptor.setValueDescriptors(valueDescriptors);
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return descriptor;
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}
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}
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