Examples of StreamMessageImpl

com.caucho.jms.message.StreamMessageImpl
A stream message.
net.timewalker.ffmq3.common.message.StreamMessageImpl

Implementation of a {@link StreamMessage}
org.exolab.jms.message.StreamMessageImpl
This class implements the {@link javax.jms.StreamMessage} interface.
A StreamMessage is used to send a stream of Java primitives. It is filled and read sequentially. It inherits from Message and adds a stream message body. It's methods are based largely on those found in java.io.DataInputStream and java.io.DataOutputStream.
The primitive types can be read or written explicitly using methods for each type. They may also be read or written generically as objects. For instance, a call to StreamMessage.writeInt(6) is equivalent to StreamMessage.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 {@link #clearBody}is called, the body of the message is in write-only mode. After the first call to {@link #reset} has been made, the message body is inread-only mode. When a message has been sent, by definition, the provider calls reset in order to read it's content, and 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 {@link #clearBody} is called on a message in read-only mode,the message body is cleared and the message body 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.
Stream messages support the following conversion table. The marked cases must be supported. The unmarked cases must throw a JMSException. The String to primitive conversions may throw a runtime exception if the primitives valueOf() method does not accept it as a valid String representation of the primitive.
A value written as the row type can be read as the column type.
```
 |        | boolean byte short char int long float double String byte[] |---------------------------------------------------------------------- |boolean |    X                                            X |byte    |          X     X         X   X                  X |short   |                X         X   X                  X |char    |                     X                           X |int     |                          X   X                  X |long    |                              X                  X |float   |                                    X     X      X |double  |                                          X      X |String  |    X     X     X         X   X     X     X      X |byte[]  |                                                        X |---------------------------------------------------------------------- 
```
Attempting to read a null value as a Java primitive type must be treated as calling the primitive's corresponding valueOf(String) conversion method with a null value. Since char does not support a String conversion, attempting to read a null value as a char must throw NullPointerException. @version $Revision: 1.2 $ $Date: 2005/05/24 13:27:10 $ @author Jim Mourikis @author Tim Anderson @see javax.jms.StreamMessage

Examples of com.caucho.jms.message.StreamMessageImpl

   * Reads a stream message.
   */
  private StreamMessageImpl readStreamMessage(InputStream is)
    throws IOException, JMSException
  {
    StreamMessageImpl stream = new StreamMessageImpl();


    if (is == null)
      return stream;


    ObjectInputStream in = new ContextLoaderObjectInputStream(is);


    try {
      while (true) {
        Object obj = in.readObject();


        stream.writeObject(obj);
      }
    } catch (EOFException e) {
    } catch (Exception e) {
      throw new JmsExceptionWrapper(e);
    }


    in.close();


    stream.reset();
    
    return stream;
  }

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Examples of com.caucho.jms.message.StreamMessageImpl

  public StreamMessage createStreamMessage()
    throws JMSException
  {
    checkOpen();
    
    return new StreamMessageImpl();
  }

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Examples of com.caucho.jms.message.StreamMessageImpl

  public StreamMessage createStreamMessage()
    throws JMSException
  {
    checkOpen();
    
    return new StreamMessageImpl();
  }

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Examples of com.caucho.jms.message.StreamMessageImpl

   * Reads a stream message.
   */
  private StreamMessageImpl readStreamMessage(InputStream is)
    throws IOException, JMSException
  {
    StreamMessageImpl stream = new StreamMessageImpl();


    if (is == null)
      return stream;


    ObjectInputStream in = new ContextLoaderObjectInputStream(is);


    try {
      while (true) {
  Object obj = in.readObject();


  stream.writeObject(obj);
      }
    } catch (EOFException e) {
    } catch (Exception e) {
      throw new JmsExceptionWrapper(e);
    }


    in.close();


    stream.reset();
    
    return stream;
  }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

        return msg;
    } 
    
    public static StreamMessageImpl createStreamMessage( int size ) throws JMSException
    {
        StreamMessageImpl msg = new StreamMessageImpl();
        setDummyProperties(msg);
        
        msg.writeBoolean(true);
        msg.writeString("foobar");
        msg.writeChar('c');
        msg.writeByte((byte)1);
        msg.writeShort((short)2);
        msg.writeInt(3);
        msg.writeLong(4);
        msg.writeFloat(1.23f);
        msg.writeDouble(4.56);
        msg.writeBytes(createDummyByteArray(size));
        
        return msg;
    }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

    /* (non-Javadoc)
     * @see javax.jms.Session#createStreamMessage()
     */
    public final StreamMessage createStreamMessage() throws JMSException
    {
        return new StreamMessageImpl();
    }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

 */
public class StreamMessageImplTest extends TestCase
{
  public void testBooleanConversion() throws Exception
  {
    StreamMessageImpl msg;
    
    // Boolean
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    assertTrue(msg.readBoolean());
    
    // Byte
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readByte(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertTrue(msg.readBoolean());
    
    // Short
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readShort(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertTrue(msg.readBoolean());


    // Char
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readChar(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertTrue(msg.readBoolean());
    
    // Int
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readInt(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertTrue(msg.readBoolean());
    
    // Long
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readLong(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertTrue(msg.readBoolean());
    
    // Float
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readFloat(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertTrue(msg.readBoolean());
    
    // Double
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readDouble(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertTrue(msg.readBoolean());
    
    // String
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    assertEquals("true",msg.readString());
    
    // Bytes
    msg = new StreamMessageImpl();
    msg.writeBoolean(true);
    msg.markAsReadOnly();
    try { msg.readBytes(new byte[1]); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertTrue(msg.readBoolean());
  }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

    assertEquals(123,msg.readLong());
  }
  
  public void testFloatConversion() throws Exception
  {
    StreamMessageImpl msg;
    
    // Boolean
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readBoolean(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Byte
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readByte(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Short
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readShort(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Char
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readChar(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Int
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readInt(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Long
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readLong(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Float
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    assertEquals(1.23f,msg.readFloat(),0);
    
    // Double
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    assertEquals(1.23,msg.readDouble(),0.0000001);
    
    // String
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    assertEquals("1.23",msg.readString());
    
    // Bytes
    msg = new StreamMessageImpl();
    msg.writeFloat(1.23f);
    msg.markAsReadOnly();
    try { msg.readBytes(new byte[1]); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23f,msg.readFloat(),0);
  }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

    assertEquals(1.23f,msg.readFloat(),0);
  }
  
  public void testDoubleConversion() throws Exception
  {
    StreamMessageImpl msg;
    
    // Boolean
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readBoolean(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Byte
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readByte(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Short
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readShort(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Char
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readChar(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Int
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readInt(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Long
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readLong(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Float
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readFloat(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */ }
    assertEquals(1.23,msg.readDouble(),0);
    
    // Double
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    assertEquals(1.23,msg.readDouble(),0.0000001);
    
    // String
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    assertEquals("1.23",msg.readString());
    
    // Bytes
    msg = new StreamMessageImpl();
    msg.writeDouble(1.23);
    msg.markAsReadOnly();
    try { msg.readBytes(new byte[1]); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals(1.23,msg.readDouble(),0);
  }

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Examples of net.timewalker.ffmq3.common.message.StreamMessageImpl

    assertEquals(1.23,msg.readDouble(),0);
  }
  
  public void testStringConversion() throws Exception
  {
    StreamMessageImpl msg;
    
    // Boolean
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    assertFalse(msg.readBoolean());
    
    // Byte
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readByte(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */  }
    assertEquals("foobar",msg.readString());
    
    // Short
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readShort(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */  }
    assertEquals("foobar",msg.readString());
    
    // Char
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readChar(); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals("foobar",msg.readString());
    
    // Int
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readInt(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */ }
    assertEquals("foobar",msg.readString());
    
    // Long
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readLong(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */ }
    assertEquals("foobar",msg.readString());
    
    // Float
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readFloat(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */ }
    assertEquals("foobar",msg.readString());
    
    // Double
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readDouble(); fail("Should have failed"); } catch (NumberFormatException e) { /* OK */ }
    assertEquals("foobar",msg.readString());
    
    // String
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    assertEquals("foobar",msg.readString());
    
    // Bytes
    msg = new StreamMessageImpl();
    msg.writeString("foobar");
    msg.markAsReadOnly();
    try { msg.readBytes(new byte[1]); fail("Should have failed"); } catch (MessageFormatException e) { /* OK */  }
    assertEquals("foobar",msg.readString());
  }

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