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.web;
  
  import jakarta.jms.BytesMessage;
  import jakarta.jms.JMSException;
  import jakarta.jms.MapMessage;
  import jakarta.jms.Message;
  import jakarta.jms.ObjectMessage;
  import jakarta.jms.QueueBrowser;
  import jakarta.jms.StreamMessage;
  import jakarta.jms.TextMessage;
  import java.util.Enumeration;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Allow the user to browse a message on a queue by its ID
   *
   *
   */
  public class MessageQuery extends QueueBrowseQuery {
  
      private String id;
      private Message message;
  
      public MessageQuery(BrokerFacade brokerFacade) throws JMSException {
          super(brokerFacade);
      }
  
      public String getId() {
          return id;
      }
  
      public void setId(String id) {
          this.id = id;
      }
  
      public void setMessage(Message message) {
          this.message = message;
      }
  
      public Message getMessage() throws JMSException {
          if (message == null) {
              if (id != null) {
                  QueueBrowser tempBrowser=getBrowser();
                  Enumeration iter = tempBrowser.getEnumeration();
                  while (iter.hasMoreElements()) {
                      Message item = (Message) iter.nextElement();
                      if (id.equals(item.getJMSMessageID())) {
                          message = item;
                          break;
                      }
                  }
                  tempBrowser.close();
              }
  
          }
          return message;
      }
  
      public Object getBody() throws JMSException {
          Message message = getMessage();
          if (message instanceof TextMessage) {
              return ((TextMessage) message).getText();
          }
          if (message instanceof ObjectMessage) {
              try {
                  return ((ObjectMessage) message).getObject();
              } catch (Exception e) {
                  //message could not be parsed, make the reason available
                  return new String("Cannot display ObjectMessage body. Reason: " + e.getMessage());
              }
          }
          if (message instanceof MapMessage) {
              return createMapBody((MapMessage) message);
          }
          if (message instanceof BytesMessage) {
              BytesMessage msg = (BytesMessage) message;
              int len = (int) msg.getBodyLength();
              if (len > -1) {
                  byte[] data = new byte[len];
                  msg.readBytes(data);
                  return new String(data);
              } else {
                  return "";
              }
          }
          if (message instanceof StreamMessage) {
              return "StreamMessage is not viewable";
          }
  
          // unknown message type
          if (message != null) {
              return "Unknown message type [" + message.getClass().getName() + "] " + message;
          }
  
          return null;
      }
  
      public boolean isDLQ() throws Exception {
      	return getQueueView().isDLQ();
      }
  
      public Map<String, Object> getPropertiesMap() throws JMSException {
          Map<String, Object> answer = new HashMap<String, Object>();
          Message aMessage = getMessage();
          Enumeration iter = aMessage.getPropertyNames();
          while (iter.hasMoreElements()) {
              String name = (String) iter.nextElement();
              Object value = aMessage.getObjectProperty(name);
              if (value != null) {
                  answer.put(name, value);
              }
          }
          return answer;
      }
  
      protected Map<String, Object> createMapBody(MapMessage mapMessage) throws JMSException {
          Map<String, Object> answer = new HashMap<String, Object>();
          Enumeration iter = mapMessage.getMapNames();
          while (iter.hasMoreElements()) {
              String name = (String) iter.nextElement();
              Object value = mapMessage.getObject(name);
              if (value != null) {
                  answer.put(name, value);
              }
          }
          return answer;
      }
  }
  