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/* 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.activiti.bpmn.converter.parser;

import javax.xml.stream.XMLStreamReader;

import org.activiti.bpmn.constants.BpmnXMLConstants;
import org.activiti.bpmn.converter.util.BpmnXMLUtil;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.DataStore;
import org.apache.commons.lang3.StringUtils;

/**
 * @author Tijs Rademakers
 */
public class DataStoreParser implements BpmnXMLConstants {
  
  public void parse(XMLStreamReader xtr, BpmnModel model) throws Exception {
    String id = xtr.getAttributeValue(null, ATTRIBUTE_ID);
    if (StringUtils.isNotEmpty(id)) {
      
      DataStore dataStore = new DataStore();
      dataStore.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
      
      String name = xtr.getAttributeValue(null, ATTRIBUTE_NAME);
      if (StringUtils.isNotEmpty(name)) {
        dataStore.setName(name);
      }
      
      String itemSubjectRef = xtr.getAttributeValue(null, ATTRIBUTE_ITEM_SUBJECT_REF);
      if (StringUtils.isNotEmpty(itemSubjectRef)) {
        dataStore.setItemSubjectRef(itemSubjectRef);
      }
      
      BpmnXMLUtil.addXMLLocation(dataStore, xtr);
      
      model.addDataStore(dataStore.getId(), dataStore);
      
      BpmnXMLUtil.parseChildElements(ELEMENT_DATA_STORE, dataStore, xtr, model);
    }
  }
}