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.activemq.util;
  
  import com.thoughtworks.xstream.XStream;
  import com.thoughtworks.xstream.security.AnyTypePermission;
  import com.thoughtworks.xstream.security.ArrayTypePermission;
  import com.thoughtworks.xstream.security.NoTypePermission;
  import com.thoughtworks.xstream.security.PrimitiveTypePermission;
  import org.apache.activemq.util.ClassLoadingAwareObjectInputStream;
  
  import java.util.Collection;
  import java.util.Map;
  
  public class XStreamSupport {
  
      public static XStream createXStream() {
          XStream stream = new XStream();
          stream.addPermission(NoTypePermission.NONE);
          stream.addPermission(PrimitiveTypePermission.PRIMITIVES);
          stream.addPermission(ArrayTypePermission.ARRAYS);
          stream.allowTypeHierarchy(Collection.class);
          stream.allowTypeHierarchy(Map.class);
          stream.allowTypes(new Class[]{String.class});
          if (ClassLoadingAwareObjectInputStream.isAllAllowed()) {
              stream.addPermission(AnyTypePermission.ANY);
          } else {
              for (String packageName : ClassLoadingAwareObjectInputStream.serializablePackages) {
                  stream.allowTypesByWildcard(new String[]{packageName + ".**"});
              }
          }
          return stream;
      }
  
  }
  