Example usage for javax.jms StreamMessage readObject

Introduction

In this page you can find the example usage for javax.jms StreamMessage readObject.

Prototype

Object readObject() throws JMSException;

Source Link

Document

Reads an object from the stream message.

Usage

From source file:com.mirth.connect.connectors.jms.JmsMessageUtils.java

public static Object getObjectForMessage(Message source) throws JMSException {
    Object result = null;/*from w  w w .  j a  v  a  2 s .c o  m*/
    try {
        if (source instanceof ObjectMessage) {
            result = ((ObjectMessage) source).getObject();
        } else if (source instanceof MapMessage) {
            Hashtable map = new Hashtable();
            MapMessage m = (MapMessage) source;

            for (Enumeration e = m.getMapNames(); e.hasMoreElements();) {
                String name = (String) e.nextElement();
                Object obj = m.getObject(name);
                map.put(name, obj);
            }

            result = map;
        } else if (source instanceof javax.jms.BytesMessage) {

            javax.jms.BytesMessage bm = (javax.jms.BytesMessage) source;
            java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();

            byte[] buffer = new byte[1024 * 4];
            int len = 0;
            bm.reset();
            while ((len = bm.readBytes(buffer)) != -1) {
                baos.write(buffer, 0, len);
            }
            baos.flush();
            result = baos.toByteArray();
            baos.close();
            if (result != null) {
                if (logger.isDebugEnabled())
                    logger.debug("JMSToObject: extracted " + ((byte[]) result).length
                            + " bytes from JMS BytesMessage");
            }
        } else if (source instanceof TextMessage) {
            result = ((TextMessage) source).getText();

        } else if (source instanceof BytesMessage) {
            byte[] bytes = getBytesFromMessage(source);
            return CompressionHelper.uncompressByteArray(bytes);
        } else if (source instanceof StreamMessage) {

            StreamMessage sm = (javax.jms.StreamMessage) source;

            result = new java.util.Vector();
            try {
                Object obj = null;
                while ((obj = sm.readObject()) != null) {
                    ((java.util.Vector) result).addElement(obj);
                }
            } catch (MessageEOFException eof) {
            } catch (Exception e) {
                throw new JMSException("Failed to extract information from JMS Stream Message: " + e);
            }
        } else {
            result = source;
        }
    } catch (Exception e) {
        throw new JMSException("Failed to transform message: " + e.getMessage());
    }
    return result;
}

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From source file:hermes.renderers.DefaultMessageRenderer.java

/**
 * List out all the properties in the stream message.
 * //from   www  . j  ava2s  . c o  m
 * @param streamMessage
 * @return
 * @throws JMSException
 */
protected JComponent handleStreamMessage(StreamMessage streamMessage) throws JMSException {
    JTextArea textPane = new JTextArea();
    StringBuffer buffer = new StringBuffer();

    textPane.setEditable(false);

    streamMessage.reset();

    try {
        for (;;) {
            buffer.append(streamMessage.readObject().toString()).append("\n");
        }
    } catch (MessageEOFException ex) {
        // NOP
    }

    return textPane;
}

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From source file:org.mule.transport.jms.JmsMessageUtils.java

public static Object toObject(Message source, String jmsSpec, String encoding)
        throws JMSException, IOException {
    if (source instanceof ObjectMessage) {
        return ((ObjectMessage) source).getObject();
    } else if (source instanceof MapMessage) {
        Map<String, Object> map = new HashMap<String, Object>();
        MapMessage m = (MapMessage) source;

        for (Enumeration<?> e = m.getMapNames(); e.hasMoreElements();) {
            String name = (String) e.nextElement();
            Object obj = m.getObject(name);
            map.put(name, obj);/*from ww  w  .  ja va2s.  c  om*/
        }

        return map;
    } else if (source instanceof TextMessage) {
        return ((TextMessage) source).getText();
    } else if (source instanceof BytesMessage) {
        return toByteArray(source, jmsSpec, encoding);
    } else if (source instanceof StreamMessage) {
        List<Object> result = new ArrayList<Object>();
        try {
            StreamMessage sMsg = (StreamMessage) source;
            Object obj;
            while ((obj = sMsg.readObject()) != null) {
                result.add(obj);
            }
        } catch (MessageEOFException eof) {
            // ignored
        } catch (Exception e) {
            throw new JMSException("Failed to extract information from JMS Stream Message: " + e);
        }
        return result;
    }

    // what else is there to do?
    return source;
}

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From source file:org.mule.transport.jms.JmsMessageUtilsTestCase.java

@Test
public void testStreamMessageSerialization() throws Exception {
    Session session = mock(Session.class);
    when(session.createStreamMessage()).thenReturn(new ActiveMQStreamMessage());

    // Creates a test list with data
    List data = new ArrayList();
    data.add(Boolean.TRUE);//from  w w w. ja  va 2 s  .  c  o  m
    data.add(new Byte("1"));
    data.add(new Short("2"));
    data.add(new Character('3'));
    data.add(new Integer("4"));
    // can't write Longs: https://issues.apache.org/activemq/browse/AMQ-1965
    // data.add(new Long("5"));
    data.add(new Float("6"));
    data.add(new Double("7"));
    data.add(new String("8"));
    data.add(null);
    data.add(new byte[] { 9, 10 });

    StreamMessage result = (StreamMessage) JmsMessageUtils.toMessage(data, session);

    // Resets so it's readable
    result.reset();
    assertEquals(Boolean.TRUE, result.readObject());
    assertEquals(new Byte("1"), result.readObject());
    assertEquals(new Short("2"), result.readObject());
    assertEquals(new Character('3'), result.readObject());
    assertEquals(new Integer("4"), result.readObject());
    // can't write Longs: https://issues.apache.org/activemq/browse/AMQ-1965
    // assertEquals(new Long("5"), result.readObject());
    assertEquals(new Float("6"), result.readObject());
    assertEquals(new Double("7"), result.readObject());
    assertEquals(new String("8"), result.readObject());
    assertNull(result.readObject());
    assertTrue(Arrays.equals(new byte[] { 9, 10 }, (byte[]) result.readObject()));
}

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From source file:org.skyscreamer.nevado.jms.message.NevadoStreamMessage.java

protected NevadoStreamMessage(StreamMessage message) throws JMSException {
    super(message);
    message.reset();// w  w  w .  j a  v a2 s.c om
    while (true) {
        try {
            Object o = message.readObject();
            writeObject(o);
        } catch (MessageEOFException e) {
            break;
        }
    }
    storeContent();
}

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From source file:org.wso2.carbon.andes.core.internal.util.Utils.java

/**
 * A stream message can have java primitives plus objects, as its content. This method is used
 * for getting the valid message content from the stream.
 *
 * @param streamMessage - input message/*from   w  ww .  jav a 2s  .  c o  m*/
 * @param sb            - a string builder to build the whole message content
 * @return - complete message content inside the stream message
 * @throws JMSException
 */
private static String getContentFromStreamMessage(StreamMessage streamMessage, StringBuilder sb)
        throws JMSException {

    boolean eofReached = false;

    while (!eofReached) {

        try {
            Object obj = streamMessage.readObject();
            // obj could be null if the wire type is AbstractBytesTypedMessage.NULL_STRING_TYPE
            if (null != obj) {
                sb.append(obj.toString()).append(", ");
            }
        } catch (MessageEOFException ex) {
            eofReached = true;
        }
    }

    return StringEscapeUtils.escapeHtml(sb.toString());
}

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From source file:org.wso2.carbon.andes.ui.client.QueueBrowserClient.java

/**
 * A stream message can have java primitives plus objects, as its content. This message it used to retrieve the
 *
 * @param queueMessage - input message// w ww.  j a v  a 2 s .c  o  m
 * @param sb           - a string builder to build the whole message content
 * @return - complete message content inside the stream message
 * @throws JMSException
 */
private String getContentFromStreamMessage(StreamMessage queueMessage, StringBuilder sb) throws JMSException {

    boolean eofReached = false;

    while (!eofReached) {

        try {
            Object obj = queueMessage.readObject();
            // obj could be null if the wire type is AbstractBytesTypedMessage.NULL_STRING_TYPE
            if (null != obj) {
                sb.append(obj.toString()).append(", ");
            }
        } catch (MessageEOFException ex) {
            eofReached = true;
        }

    }

    return StringEscapeUtils.escapeHtml(sb.toString());
}

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