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.export;
  
  import java.util.List;
  import javax.xml.stream.XMLStreamWriter;
  import org.activiti.bpmn.constants.BpmnXMLConstants;
  import org.activiti.bpmn.converter.util.BpmnXMLUtil;
  import org.activiti.bpmn.model.FieldExtension;
  import org.apache.commons.lang3.StringUtils;
  
  public class FieldExtensionExport implements BpmnXMLConstants {
  
      public static boolean writeFieldExtensions(
          List<FieldExtension> fieldExtensionList,
          boolean didWriteExtensionStartElement,
          XMLStreamWriter xtw
      ) throws Exception {
          for (FieldExtension fieldExtension : fieldExtensionList) {
              if (StringUtils.isNotEmpty(fieldExtension.getFieldName())) {
                  if (
                      StringUtils.isNotEmpty(fieldExtension.getStringValue()) ||
                      StringUtils.isNotEmpty(fieldExtension.getExpression())
                  ) {
                      if (!didWriteExtensionStartElement) {
                          xtw.writeStartElement(ELEMENT_EXTENSIONS);
                          didWriteExtensionStartElement = true;
                      }
  
                      xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD, ACTIVITI_EXTENSIONS_NAMESPACE);
                      BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_FIELD_NAME, fieldExtension.getFieldName(), xtw);
  
                      if (StringUtils.isNotEmpty(fieldExtension.getStringValue())) {
                          xtw.writeStartElement(
                              ACTIVITI_EXTENSIONS_PREFIX,
                              ELEMENT_FIELD_STRING,
                              ACTIVITI_EXTENSIONS_NAMESPACE
                          );
                          xtw.writeCData(fieldExtension.getStringValue());
                      } else {
                          xtw.writeStartElement(
                              ACTIVITI_EXTENSIONS_PREFIX,
                              ATTRIBUTE_FIELD_EXPRESSION,
                              ACTIVITI_EXTENSIONS_NAMESPACE
                          );
                          xtw.writeCData(fieldExtension.getExpression());
                      }
                      xtw.writeEndElement();
                      xtw.writeEndElement();
                  }
              }
          }
          return didWriteExtensionStartElement;
      }
  }
  