content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.camel.dataformat.soap.name;
  
  import jakarta.xml.bind.annotation.XmlRootElement;
  import jakarta.xml.bind.annotation.XmlSchema;
  import jakarta.xml.bind.annotation.XmlType;
  
  import javax.xml.namespace.QName;
  
  import org.apache.camel.util.ObjectHelper;
  
  public class XmlRootElementPreferringElementNameStrategy implements ElementNameStrategy {
  
      private static final String DEFAULT_NS = "##default";
  
      @Override
      public QName findQNameForSoapActionOrType(String soapAction, Class<?> type) {
          XmlType xmlType = type.getAnnotation(XmlType.class);
          if (xmlType == null || xmlType.name() == null) {
              throw new RuntimeException("The type " + type.getName() + " needs to have an XmlType annotation with name");
          }
          // prefer name+ns from the XmlRootElement, and fallback to XmlType
          String localName = null;
          String nameSpace = null;
  
          XmlRootElement root = type.getAnnotation(XmlRootElement.class);
          if (root != null) {
              localName = ObjectHelper.isEmpty(localName) ? root.name() : localName;
              nameSpace = isInValidNamespace(nameSpace) ? root.namespace() : nameSpace;
          }
  
          if (ObjectHelper.isEmpty(localName)) {
              localName = xmlType.name();
          }
  
          if (isInValidNamespace(nameSpace)) {
              XmlSchema xmlSchema = type.getPackage().getAnnotation(XmlSchema.class);
              if (xmlSchema != null) {
                  nameSpace = xmlSchema.namespace();
              }
          }
  
          if (isInValidNamespace(nameSpace)) {
              nameSpace = xmlType.namespace();
          }
  
          if (ObjectHelper.isEmpty(localName) || isInValidNamespace(nameSpace)) {
              throw new IllegalStateException("Unable to determine localName or namespace for type <" + type.getName() + ">");
          }
          return new QName(nameSpace, localName);
      }
  
      private boolean isInValidNamespace(String namespace) {
          return ObjectHelper.isEmpty(namespace) || DEFAULT_NS.equalsIgnoreCase(namespace);
      }
  
      @Override
      public Class<? extends Exception> findExceptionForFaultName(QName faultName) {
          throw new UnsupportedOperationException("Exception lookup is not supported");
      }
  
      @Override
      public Class<? extends Exception> findExceptionForSoapActionAndFaultName(String soapAction, QName faultName) {
          throw new UnsupportedOperationException("Exception lookup is not supported");
      }
  
  }
  