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.artemis.jms.client;
  
  import javax.jms.JMSException;
  import javax.jms.TextMessage;
  
  import org.apache.activemq.artemis.api.core.ActiveMQException;
  import org.apache.activemq.artemis.api.core.Message;
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.api.core.client.ClientMessage;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  
  import static org.apache.activemq.artemis.reader.TextMessageUtil.readBodyText;
  import static org.apache.activemq.artemis.reader.TextMessageUtil.writeBodyText;
  
  /**
   * ActiveMQ Artemis implementation of a JMS TextMessage.
   */
  public class ActiveMQTextMessage extends ActiveMQMessage implements TextMessage {
  
     public static final byte TYPE = Message.TEXT_TYPE;
  
  
     // We cache it locally - it's more performant to cache as a SimpleString, the AbstractChannelBuffer write
     // methods are more efficient for a SimpleString
     private SimpleString text;
  
  
     public ActiveMQTextMessage(final ClientSession session) {
        super(ActiveMQTextMessage.TYPE, session);
     }
  
     public ActiveMQTextMessage(final ClientMessage message, final ClientSession session) {
        super(message, session);
     }
  
     /**
      * A copy constructor for non-ActiveMQ Artemis JMS TextMessages.
      */
     public ActiveMQTextMessage(final TextMessage foreign, final ClientSession session) throws JMSException {
        super(foreign, ActiveMQTextMessage.TYPE, session);
  
        setText(foreign.getText());
     }
  
  
     @Override
     public byte getType() {
        return ActiveMQTextMessage.TYPE;
     }
  
     // TextMessage implementation ------------------------------------
  
     @Override
     public void setText(final String text) throws JMSException {
        checkWrite();
  
        if (text != null) {
           this.text = SimpleString.of(text);
        } else {
           this.text = null;
        }
  
        writeBodyText(message.getBodyBuffer(), this.text);
     }
  
     @Override
     public String getText() {
        if (text != null) {
           return text.toString();
        } else {
           return null;
        }
     }
  
     @Override
     public void clearBody() throws JMSException {
        super.clearBody();
  
        text = null;
     }
  
     // ActiveMQRAMessage override -----------------------------------------
  
     @Override
     public void doBeforeReceive() throws ActiveMQException {
        super.doBeforeReceive();
  
        text = readBodyText(message.getBodyBuffer());
     }
  
     @Override
     protected <T> T getBodyInternal(Class<T> c) {
        return (T) getText();
     }
  
     @Override
     @SuppressWarnings("unchecked")
     public boolean isBodyAssignableTo(Class c) {
        if (text == null)
           return true;
        return c.isAssignableFrom(java.lang.String.class);
     }
  }
  