Examples of org.springframework.amqp.core.MessagePostProcessor

org.springframework.amqp.core.MessagePostProcessor
To be used with the send method of Amqp template classes (such as RabbitTemplate) that convert an object to a message. It allows for further modification of the message after it has been processed by the converter. This is useful for setting of Header and Properties.
This often as an anonymous class within a method implementation. @author Mark Pollack

  public void setDefaultReplyTo(String defaultReplyTo) {
    this.defaultReplyTo = defaultReplyTo;
  }
  
  public void send(TradeRequest tradeRequest) {
    getRabbitTemplate().convertAndSend(tradeRequest, new MessagePostProcessor() {
      public Message postProcessMessage(Message message) throws AmqpException {
        message.getMessageProperties().setReplyTo(defaultReplyTo);
        try {
          message.getMessageProperties().setCorrelationId(UUID.randomUUID().toString().getBytes("UTF-8"));
        }

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  public void setDefaultReplyTo(String defaultReplyTo) {
    this.defaultReplyTo = defaultReplyTo;
  }
  
  public void send(TradeRequest tradeRequest) {
    getRabbitTemplate().convertAndSend(tradeRequest, new MessagePostProcessor() {
      public Message postProcessMessage(Message message) throws AmqpException {
        message.getMessageProperties().setReplyTo(new Address(defaultReplyTo));
        try {
          message.getMessageProperties().setCorrelationId(UUID.randomUUID().toString().getBytes("UTF-8"));
        }

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      WorkMessage workMessage = new WorkMessage();
      workMessage.setCorrelationId(corrId);
      workMessage.setStart(i);
      workMessage.setNrOfElements(nrOfElements);
      
      rabbitTemplate.convertAndSend(workMessage, new MessagePostProcessor() {        
        public Message postProcessMessage(Message message) throws AmqpException {
          message.getMessageProperties().setReplyToAddress(new Address("direct://piExchange/" + QueueNames.RESULT_QUEUE_NAME));
          return message;
        }
      });

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    assertEquals(null, result);
  }


  @Test
  public void testSendAndReceiveWithPostProcessor() throws Exception {
    template.convertAndSend(ROUTE, (Object)"message", new MessagePostProcessor() {
      @Override
      public Message postProcessMessage(Message message) throws AmqpException {
        message.getMessageProperties().setContentType("text/other");
        // message.getMessageProperties().setUserId("foo");
        return message;

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        template.send(message.getMessageProperties().getReplyTo(), message);
        return (String) template.getMessageConverter().fromMessage(message);
      }


    });
    String result = (String) template.convertSendAndReceive((Object) "message", new MessagePostProcessor() {
      @Override
      public Message postProcessMessage(Message message) throws AmqpException {
        try {
          byte[] newBody = new String(message.getBody(), "UTF-8").toUpperCase().getBytes("UTF-8");
          return new Message(newBody, message.getMessageProperties());

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        template.send(message.getMessageProperties().getReplyTo(), message);
        return (String) template.getMessageConverter().fromMessage(message);
      }


    });
    String result = (String) template.convertSendAndReceive(ROUTE, (Object) "message", new MessagePostProcessor() {
      @Override
      public Message postProcessMessage(Message message) throws AmqpException {
        try {
          byte[] newBody = new String(message.getBody(), "UTF-8").toUpperCase().getBytes("UTF-8");
          return new Message(newBody, message.getMessageProperties());

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        template.send(message.getMessageProperties().getReplyTo(), message);
        return (String) template.getMessageConverter().fromMessage(message);
      }


    });
    String result = (String) template.convertSendAndReceive("", ROUTE, "message", new MessagePostProcessor() {


      @Override
      public Message postProcessMessage(Message message) throws AmqpException {
        try {
          byte[] newBody = new String(message.getBody(), "UTF-8").toUpperCase().getBytes("UTF-8");

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