Examples of org.apache.activemq.command.ActiveMQBytesMessage

org.apache.activemq.command.ActiveMQBytesMessage
A BytesMessage object is used to send a message containing a stream of uninterpreted bytes. It inherits from the Message interface and adds a bytes message body. The receiver of the message supplies the interpretation of the bytes.
The BytesMessage methods are based largely on those found in java.io.DataInputStream and java.io.DataOutputStream.
This message type is for client encoding of existing message formats. If possible, one of the other self-defining message types should be used instead.
Although the JMS API allows the use of message properties with byte messages, they are typically not used, since the inclusion of properties may affect the format.
The primitive types can be written explicitly using methods for each type. They may also be written generically as objects. For instance, a call to BytesMessage.writeInt(6) is equivalent to BytesMessage.writeObject(new Integer(6)). Both forms are provided, because the explicit form is convenient for static programming, and the object form is needed when types are not known at compile time.
When the message is first created, and when clearBody is called, the body of the message is in write-only mode. After the first call to reset has been made, the message body is in read-only mode. After a message has been sent, the client that sent it can retain and modify it without affecting the message that has been sent. The same message object can be sent multiple times. When a message has been received, the provider has called reset so that the message body is in read-only mode for the client.
If clearBody is called on a message in read-only mode, the message body is cleared and the message is in write-only mode.
If a client attempts to read a message in write-only mode, a MessageNotReadableException is thrown.
If a client attempts to write a message in read-only mode, a MessageNotWriteableException is thrown. @openwire :marshaller code=24 @see javax.jms.Session#createBytesMessage() @see javax.jms.MapMessage @see javax.jms.Message @see javax.jms.ObjectMessage @see javax.jms.StreamMessage @see javax.jms.TextMessage

            ActiveMQTextMessage msg = (ActiveMQTextMessage)message.copy();
            command.setContent(msg.getText().getBytes("UTF-8"));


        } else if( message.getDataStructureType() == ActiveMQBytesMessage.DATA_STRUCTURE_TYPE ) {


          ActiveMQBytesMessage msg = (ActiveMQBytesMessage)message.copy();
          msg.setReadOnlyBody(true);
            byte[] data = new byte[(int)msg.getBodyLength()];
            msg.readBytes(data);


            headers.put(Stomp.Headers.CONTENT_LENGTH, ""+data.length);
            command.setContent(data);
        }
        return command;

View Full Code Here

            addItem("BodyLength", "Body length", SimpleType.LONG);
            addItem("BodyPreview", "Body preview", new ArrayType(1,SimpleType.BYTE));
        }


        public Map getFields(Object o) throws OpenDataException {
            ActiveMQBytesMessage m = (ActiveMQBytesMessage) o;
            Map rc = super.getFields(o);
            long length=0;
            try {
                length = m.getBodyLength();
                rc.put("BodyLength", new Long(length));
            } catch (JMSException e) {
                rc.put("BodyLength", new Long(0));
            }
            try {
                byte preview[] = new byte[ (int)Math.min(length, 255) ];
                m.readBytes(preview);
                
                // This is whack!  Java 1.5 JMX spec does not support primitive arrays!
                // In 1.6 it seems it is supported.. but until then...
                Byte data[] = new Byte[ preview.length ];
                for (int i = 0; i < data.length; i++) {

View Full Code Here

    
    /**
     * Tests transforming messages into ActiveMQ's message implementation. 
     */
    public void testTransformMessage() throws Exception {
      assertTrue("Transforming a BytesMessage message into an ActiveMQBytesMessage",ActiveMQMessageTransformation.transformMessage((BytesMessage)new ActiveMQBytesMessage(), null) instanceof ActiveMQBytesMessage);
      
      assertTrue("Transforming a MapMessage message to an ActiveMQMapMessage",ActiveMQMessageTransformation.transformMessage((MapMessage)new ActiveMQMapMessage(), null) instanceof ActiveMQMapMessage);
      
      assertTrue("Transforming an ObjectMessage message to an ActiveMQObjectMessage",ActiveMQMessageTransformation.transformMessage((ObjectMessage)new ActiveMQObjectMessage(), null) instanceof ActiveMQObjectMessage);

View Full Code Here

    public ActiveMQBytesMessageTest(String arg0) {
        super(arg0);
    }


    public void testGetDataStructureType() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        assertEquals(msg.getDataStructureType(), CommandTypes.ACTIVEMQ_BYTES_MESSAGE);
    }

View Full Code Here

        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        assertEquals(msg.getDataStructureType(), CommandTypes.ACTIVEMQ_BYTES_MESSAGE);
    }


    public void testGetBodyLength() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        int len = 10;
        try {
            for (int i = 0; i < len; i++) {
                msg.writeLong(5l);
            }
        } catch (JMSException ex) {
            ex.printStackTrace();
        }
        try {
            msg.reset();
            assertTrue(msg.getBodyLength() == (len * 8));
        } catch (Throwable e) {
            e.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

            assertTrue(false);
        }
    }


    public void testReadBoolean() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        try {
            msg.writeBoolean(true);
            msg.reset();
            assertTrue(msg.readBoolean());
        } catch (JMSException jmsEx) {
            jmsEx.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

            assertTrue(false);
        }
    }


    public void testReadByte() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        try {
            msg.writeByte((byte) 2);
            msg.reset();
            assertTrue(msg.readByte() == 2);
        } catch (JMSException jmsEx) {
            jmsEx.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

            assertTrue(false);
        }
    }


    public void testReadUnsignedByte() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        try {
            msg.writeByte((byte) 2);
            msg.reset();
            assertTrue(msg.readUnsignedByte() == 2);
        } catch (JMSException jmsEx) {
            jmsEx.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

            assertTrue(false);
        }
    }


    public void testReadShort() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        try {
            msg.writeShort((short) 3000);
            msg.reset();
            assertTrue(msg.readShort() == 3000);
        } catch (JMSException jmsEx) {
            jmsEx.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

            assertTrue(false);
        }
    }


    public void testReadUnsignedShort() {
        ActiveMQBytesMessage msg = new ActiveMQBytesMessage();
        try {
            msg.writeShort((short) 3000);
            msg.reset();
            assertTrue(msg.readUnsignedShort() == 3000);
        } catch (JMSException jmsEx) {
            jmsEx.printStackTrace();
            assertTrue(false);
        }
    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.activemq.command.ActiveMQBytesMessage

org.apache.activemq.ActiveMQConnection

org.apache.activemq.ActiveMQInputStream

org.apache.activemq.ActiveMQMessageTransformation

org.apache.activemq.ActiveMQOutputStream

org.apache.activemq.ActiveMQSession

org.apache.activemq.broker.jmx.OpenTypeSupport$ByteMessageOpenTypeFactory

org.apache.activemq.broker.virtual.VirtualDestPerfTest

org.apache.activemq.bugs.AMQ5381Test

org.apache.activemq.command.ActiveMQBytesMessageTest

org.apache.activemq.jmx.OpenTypeSupportTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.