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There is a newer version: 10.0.0
/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jbpm.bpmn2.xml;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;

import org.jbpm.bpmn2.core.*;
import org.jbpm.bpmn2.core.Error;
import org.jbpm.compiler.xml.Handler;
import org.jbpm.compiler.xml.Parser;
import org.jbpm.compiler.xml.ProcessBuildData;
import org.jbpm.compiler.xml.core.BaseAbstractHandler;
import org.jbpm.process.core.datatype.DataType;
import org.jbpm.process.core.datatype.impl.type.ObjectDataType;
import org.jbpm.ruleflow.core.RuleFlowProcess;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class DataStoreHandler extends BaseAbstractHandler implements Handler {

    @SuppressWarnings("rawtypes")
    public DataStoreHandler() {
        if ((this.validParents == null) && (this.validPeers == null)) {
            this.validParents = new HashSet>();
            this.validParents.add(Definitions.class);

            this.validPeers = new HashSet>();
            this.validPeers.add(null);
            this.validPeers.add(ItemDefinition.class);
            this.validPeers.add(Message.class);
            this.validPeers.add(Interface.class);
            this.validPeers.add(Escalation.class);
            this.validPeers.add(Error.class);
            this.validPeers.add(Signal.class);
            this.validPeers.add(DataStore.class);
            this.validPeers.add(RuleFlowProcess.class);

            this.allowNesting = false;
        }
    }

    public Object start(final String uri, final String localName,
            final Attributes attrs, final Parser parser)
            throws SAXException {
        parser.startElementBuilder(localName, attrs);
        DataStore store = new DataStore();
        store.setId(attrs.getValue("id"));
        store.setName(attrs.getValue("name"));
        final String itemSubjectRef = attrs.getValue("itemSubjectRef");
        store.setItemSubjectRef(itemSubjectRef);
        Map itemDefinitions = (Map) ((ProcessBuildData) parser.getData()).getMetaData("ItemDefinitions");
        // retrieve type from item definition
        //FIXME we bypass namespace resolving here. That's not a good idea when we start having several documents, with imports.
        String localItemSubjectRef = itemSubjectRef.substring(
                itemSubjectRef.indexOf(":") + 1);
        DataType dataType = new ObjectDataType();
        if (itemDefinitions != null) {
            ItemDefinition itemDefinition = itemDefinitions.get(localItemSubjectRef);
            if (itemDefinition != null) {
                dataType = new ObjectDataType(itemDefinition.getStructureRef(), parser.getClassLoader());
            }
        }
        store.setType(dataType);

        Definitions parent = (Definitions) parser.getParent();
        List dataStores = parent.getDataStores();
        if (dataStores == null) {
            dataStores = new ArrayList<>();
            parent.setDataStores(dataStores);
        }
        dataStores.add(store);
        return store;
    }

    @SuppressWarnings("unchecked")
    public Object end(final String uri, final String localName,
            final Parser parser) throws SAXException {
        parser.endElementBuilder();
        return parser.getCurrent();
    }

    public Class generateNodeFor() {
        return DataStore.class;
    }

}