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.child;
  
  import javax.xml.stream.XMLStreamReader;
  import org.activiti.bpmn.converter.util.BpmnXMLUtil;
  import org.activiti.bpmn.model.Activity;
  import org.activiti.bpmn.model.BaseElement;
  import org.activiti.bpmn.model.BpmnModel;
  import org.activiti.bpmn.model.DataSpec;
  import org.activiti.bpmn.model.IOSpecification;
  import org.activiti.bpmn.model.Process;
  import org.apache.commons.lang3.StringUtils;
  
  /**
  
   */
  public class IOSpecificationParser extends BaseChildElementParser {
  
      public String getElementName() {
          return ELEMENT_IOSPECIFICATION;
      }
  
      public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement, BpmnModel model) throws Exception {
          if (!(parentElement instanceof Activity) && !(parentElement instanceof Process)) return;
  
          IOSpecification ioSpecification = new IOSpecification();
          BpmnXMLUtil.addXMLLocation(ioSpecification, xtr);
          boolean readyWithIOSpecification = false;
          try {
              while (!readyWithIOSpecification && xtr.hasNext()) {
                  xtr.next();
                  if (xtr.isStartElement() && ELEMENT_DATA_INPUT.equalsIgnoreCase(xtr.getLocalName())) {
                      DataSpec dataSpec = new DataSpec();
                      BpmnXMLUtil.addXMLLocation(dataSpec, xtr);
                      dataSpec.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
                      dataSpec.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
                      dataSpec.setItemSubjectRef(
                          parseItemSubjectRef(xtr.getAttributeValue(null, ATTRIBUTE_ITEM_SUBJECT_REF), model)
                      );
                      ioSpecification.getDataInputs().add(dataSpec);
                  } else if (xtr.isStartElement() && ELEMENT_DATA_OUTPUT.equalsIgnoreCase(xtr.getLocalName())) {
                      DataSpec dataSpec = new DataSpec();
                      BpmnXMLUtil.addXMLLocation(dataSpec, xtr);
                      dataSpec.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
                      dataSpec.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
                      dataSpec.setItemSubjectRef(
                          parseItemSubjectRef(xtr.getAttributeValue(null, ATTRIBUTE_ITEM_SUBJECT_REF), model)
                      );
                      ioSpecification.getDataOutputs().add(dataSpec);
                  } else if (xtr.isStartElement() && ELEMENT_DATA_INPUT_REFS.equalsIgnoreCase(xtr.getLocalName())) {
                      String dataInputRefs = xtr.getElementText();
                      if (StringUtils.isNotEmpty(dataInputRefs)) {
                          ioSpecification.getDataInputRefs().add(dataInputRefs.trim());
                      }
                  } else if (xtr.isStartElement() && ELEMENT_DATA_OUTPUT_REFS.equalsIgnoreCase(xtr.getLocalName())) {
                      String dataOutputRefs = xtr.getElementText();
                      if (StringUtils.isNotEmpty(dataOutputRefs)) {
                          ioSpecification.getDataOutputRefs().add(dataOutputRefs.trim());
                      }
                  } else if (xtr.isEndElement() && getElementName().equalsIgnoreCase(xtr.getLocalName())) {
                      readyWithIOSpecification = true;
                  }
              }
          } catch (Exception e) {
              LOGGER.warn("Error parsing ioSpecification child elements", e);
          }
  
          if (parentElement instanceof Process) {
              ((Process) parentElement).setIoSpecification(ioSpecification);
          } else {
              ((Activity) parentElement).setIoSpecification(ioSpecification);
          }
      }
  
      protected String parseItemSubjectRef(String itemSubjectRef, BpmnModel model) {
          String result = null;
          if (StringUtils.isNotEmpty(itemSubjectRef)) {
              int indexOfP = itemSubjectRef.indexOf(':');
              if (indexOfP != -1) {
                  String prefix = itemSubjectRef.substring(0, indexOfP);
                  String resolvedNamespace = model.getNamespace(prefix);
                  result = resolvedNamespace + ":" + itemSubjectRef.substring(indexOfP + 1);
              } else {
                  result = model.getTargetNamespace() + ":" + itemSubjectRef;
              }
          }
          return result;
      }
  }
  