ServiceTaskXMLConverter.java example

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jenkow-plugin-master
/* 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;

import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.FieldExtension;
import org.activiti.bpmn.model.ImplementationType;
import org.activiti.bpmn.model.ServiceTask;
import org.apache.commons.lang.StringUtils;

/**
 * @author Tijs Rademakers
 */
public class ServiceTaskXMLConverter extends BaseBpmnXMLConverter {
  
  public static String getXMLType() {
    return ELEMENT_TASK_SERVICE;
  }
  
  public static Class<? extends BaseElement> getBpmnElementType() {
    return ServiceTask.class;
  }
  
  @Override
  protected String getXMLElementName() {
    return ELEMENT_TASK_SERVICE;
  }

  @Override
  protected BaseElement convertXMLToElement(XMLStreamReader xtr) {
		ServiceTask serviceTask = new ServiceTask();
		if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_CLASS))) {
			serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_CLASS);
			serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_CLASS));
			
		} else if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_EXPRESSION))) {
			serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION);
			serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_EXPRESSION));
			
		} else if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION))) {
			serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION);
			serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION));
		}
	
		serviceTask.setResultVariableName(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_RESULTVARIABLE));
		serviceTask.setType(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TYPE));
	
		parseChildElements(getXMLElementName(), serviceTask, xtr);
		
		return serviceTask;
  }
  
  @Override
  protected void writeAdditionalAttributes(BaseElement element, XMLStreamWriter xtw) throws Exception {
    
    ServiceTask serviceTask = (ServiceTask) element;
    
    if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(serviceTask.getImplementationType())) {
      writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_CLASS, serviceTask.getImplementation(), xtw);
    } else if (ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equals(serviceTask.getImplementationType())) {
      writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_EXPRESSION, serviceTask.getImplementation(), xtw);
    } else if (ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(serviceTask.getImplementationType())) {
      writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION, serviceTask.getImplementation(), xtw);
    }
    
    if (StringUtils.isNotEmpty(serviceTask.getResultVariableName())) {
      writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_RESULTVARIABLE, serviceTask.getResultVariableName(), xtw);
    }
    if (StringUtils.isNotEmpty(serviceTask.getType())) {
      writeQualifiedAttribute(ATTRIBUTE_TYPE, serviceTask.getType(), xtw);
    }
  }
  
  @Override
  protected void writeAdditionalChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
    ServiceTask serviceTask = (ServiceTask) element;
    for (FieldExtension fieldExtension : serviceTask.getFieldExtensions()) {
      
      if (StringUtils.isNotEmpty(fieldExtension.getFieldName())) {
        
        if (didWriteExtensionStartElement == false) { 
          xtw.writeStartElement(ELEMENT_EXTENSIONS);
          didWriteExtensionStartElement = true;
        }
        
        xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD, ACTIVITI_EXTENSIONS_NAMESPACE);
        writeDefaultAttribute(ATTRIBUTE_FIELD_NAME, fieldExtension.getFieldName(), xtw);
        
        writeDefaultAttribute(ATTRIBUTE_FIELD_STRING, fieldExtension.getStringValue(), xtw);
        writeDefaultAttribute(ATTRIBUTE_FIELD_EXPRESSION, fieldExtension.getExpression(), xtw);
        
        xtw.writeEndElement();
      }
    }
  }
}