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.parser;
  
  import static java.util.Arrays.asList;
  
  import java.util.ArrayList;
  import java.util.List;
  import javax.xml.stream.XMLStreamReader;
  import org.activiti.bpmn.constants.BpmnXMLConstants;
  import org.activiti.bpmn.converter.XMLStreamReaderUtil;
  import org.activiti.bpmn.model.Process;
  import org.apache.commons.lang3.StringUtils;
  
  /**
  
   */
  public class PotentialStarterParser implements BpmnXMLConstants {
  
      public void parse(XMLStreamReader xtr, Process activeProcess) throws Exception {
          String resourceElement = XMLStreamReaderUtil.moveDown(xtr);
          if (StringUtils.isNotEmpty(resourceElement) && "resourceAssignmentExpression".equals(resourceElement)) {
              String expression = XMLStreamReaderUtil.moveDown(xtr);
              if (StringUtils.isNotEmpty(expression) && "formalExpression".equals(expression)) {
                  List<String> assignmentList = new ArrayList<String>();
                  String assignmentText = xtr.getElementText();
                  if (assignmentText.contains(",")) {
                      String[] assignmentArray = assignmentText.split(",");
                      assignmentList = asList(assignmentArray);
                  } else {
                      assignmentList.add(assignmentText);
                  }
                  for (String assignmentValue : assignmentList) {
                      if (assignmentValue == null) continue;
                      assignmentValue = assignmentValue.trim();
                      if (assignmentValue.length() == 0) continue;
  
                      String userPrefix = "user(";
                      String groupPrefix = "group(";
                      if (assignmentValue.startsWith(userPrefix)) {
                          assignmentValue = assignmentValue
                              .substring(userPrefix.length(), assignmentValue.length() - 1)
                              .trim();
                          activeProcess.getCandidateStarterUsers().add(assignmentValue);
                      } else if (assignmentValue.startsWith(groupPrefix)) {
                          assignmentValue = assignmentValue
                              .substring(groupPrefix.length(), assignmentValue.length() - 1)
                              .trim();
                          activeProcess.getCandidateStarterGroups().add(assignmentValue);
                      } else {
                          activeProcess.getCandidateStarterGroups().add(assignmentValue);
                      }
                  }
              }
          }
      }
  }
  