content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and 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.activiti.bpmn.converter;
  
  import javax.xml.stream.XMLStreamReader;
  import javax.xml.stream.XMLStreamWriter;
  import org.activiti.bpmn.converter.util.BpmnXMLUtil;
  import org.activiti.bpmn.model.BaseElement;
  import org.activiti.bpmn.model.BpmnModel;
  import org.activiti.bpmn.model.SequenceFlow;
  import org.apache.commons.lang3.StringUtils;
  
  /**
  
   */
  public class SequenceFlowXMLConverter extends BaseBpmnXMLConverter {
  
      public Class<? extends BaseElement> getBpmnElementType() {
          return SequenceFlow.class;
      }
  
      @Override
      protected String getXMLElementName() {
          return ELEMENT_SEQUENCE_FLOW;
      }
  
      @Override
      protected BaseElement convertXMLToElement(XMLStreamReader xtr, BpmnModel model) throws Exception {
          SequenceFlow sequenceFlow = new SequenceFlow();
          BpmnXMLUtil.addXMLLocation(sequenceFlow, xtr);
          sequenceFlow.setSourceRef(xtr.getAttributeValue(null, ATTRIBUTE_FLOW_SOURCE_REF));
          sequenceFlow.setTargetRef(xtr.getAttributeValue(null, ATTRIBUTE_FLOW_TARGET_REF));
          sequenceFlow.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
          sequenceFlow.setSkipExpression(xtr.getAttributeValue(null, ATTRIBUTE_FLOW_SKIP_EXPRESSION));
  
          parseChildElements(getXMLElementName(), sequenceFlow, model, xtr);
  
          return sequenceFlow;
      }
  
      @Override
      protected void writeAdditionalAttributes(BaseElement element, BpmnModel model, XMLStreamWriter xtw)
          throws Exception {
          SequenceFlow sequenceFlow = (SequenceFlow) element;
          writeDefaultAttribute(ATTRIBUTE_FLOW_SOURCE_REF, sequenceFlow.getSourceRef(), xtw);
          writeDefaultAttribute(ATTRIBUTE_FLOW_TARGET_REF, sequenceFlow.getTargetRef(), xtw);
          if (StringUtils.isNotEmpty(sequenceFlow.getSkipExpression())) {
              writeDefaultAttribute(ATTRIBUTE_FLOW_SKIP_EXPRESSION, sequenceFlow.getSkipExpression(), xtw);
          }
      }
  
      @Override
      protected void writeAdditionalChildElements(BaseElement element, BpmnModel model, XMLStreamWriter xtw)
          throws Exception {
          SequenceFlow sequenceFlow = (SequenceFlow) element;
  
          if (StringUtils.isNotEmpty(sequenceFlow.getConditionExpression())) {
              xtw.writeStartElement(ELEMENT_FLOW_CONDITION);
              xtw.writeAttribute(XSI_PREFIX, XSI_NAMESPACE, "type", "tFormalExpression");
              xtw.writeCData(sequenceFlow.getConditionExpression());
              xtw.writeEndElement();
          }
      }
  }
  