/*
* JBoss, Home of Professional Open Source
* Copyright 2005-2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.messaging.jms.client;
import java.nio.BufferUnderflowException;
import javax.jms.JMSException;
import javax.jms.MessageEOFException;
import javax.jms.MessageFormatException;
import javax.jms.StreamMessage;
import org.jboss.messaging.core.client.ClientMessage;
import org.jboss.messaging.core.client.ClientSession;
import org.jboss.messaging.core.logging.Logger;
import org.jboss.messaging.core.remoting.impl.mina.IoBufferWrapper;
import org.jboss.messaging.util.DataConstants;
/**
* This class implements javax.jms.StreamMessage.
*
* @author <a href="mailto:tim.fox@jboss.com">Tim Fox</a>
*
* Some parts based on JBM 1.x class by:
*
* @author Norbert Lataille (Norbert.Lataille@m4x.org)
* @author <a href="mailto:adrian@jboss.org">Adrian Brock</a>
* @author <a href="mailto:tim.fox@jboss.com">Tim Fox</a>
* @author <a href="mailto:ovidiu@feodorov.com">Ovidiu Feodorov</a>
* @author <a href="mailto:ataylor@redhat.com">Andy Taylor</a>
*
* @version $Revision: 3412 $
*
* $Id: JBossStreamMessage.java 3412 2007-12-05 19:41:47Z timfox $
*/
public class JBossStreamMessage extends JBossMessage implements StreamMessage
{
// Constants -----------------------------------------------------
private static final Logger log = Logger.getLogger(JBossStreamMessage.class);
public static final byte TYPE = 6;
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
/*
* This constructor is used to construct messages prior to sending
*/
public JBossStreamMessage()
{
super(JBossStreamMessage.TYPE);
}
public JBossStreamMessage(final ClientSession session)
{
super(JBossStreamMessage.TYPE, session);
}
public JBossStreamMessage(final ClientMessage message, final ClientSession session)
{
super(message, session);
}
public JBossStreamMessage(final StreamMessage foreign, final ClientSession session) throws JMSException
{
super(foreign, JBossStreamMessage.TYPE, session);
foreign.reset();
try
{
while (true)
{
Object obj = foreign.readObject();
this.writeObject(obj);
}
}
catch (MessageEOFException e)
{
//Ignore
}
}
// Public --------------------------------------------------------
public byte getType()
{
return JBossStreamMessage.TYPE;
}
// StreamMessage implementation ----------------------------------
public boolean readBoolean() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BOOLEAN:
return body.getBoolean();
case DataConstants.STRING:
String s = body.getNullableString();
return Boolean.valueOf(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public byte readByte() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BYTE:
return body.getByte();
case DataConstants.STRING:
String s = body.getNullableString();
return Byte.parseByte(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public short readShort() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BYTE:
return body.getByte();
case DataConstants.SHORT:
return body.getShort();
case DataConstants.STRING:
String s = body.getNullableString();
return Short.parseShort(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public char readChar() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.CHAR:
return body.getChar();
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public int readInt() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BYTE:
return body.getByte();
case DataConstants.SHORT:
return body.getShort();
case DataConstants.INT:
return body.getInt();
case DataConstants.STRING:
String s = body.getNullableString();
return Integer.parseInt(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public long readLong() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BYTE:
return body.getByte();
case DataConstants.SHORT:
return body.getShort();
case DataConstants.INT:
return body.getInt();
case DataConstants.LONG:
return body.getLong();
case DataConstants.STRING:
String s = body.getNullableString();
return Long.parseLong(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public float readFloat() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.FLOAT:
return body.getFloat();
case DataConstants.STRING:
String s = body.getNullableString();
return Float.parseFloat(s);
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public double readDouble() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.FLOAT:
return body.getFloat();
case DataConstants.DOUBLE:
return body.getDouble();
case DataConstants.STRING:
String s = body.getNullableString();
return Double.parseDouble(s);
default:
throw new MessageFormatException("Invalid conversion: " + type);
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public String readString() throws JMSException
{
checkRead();
try
{
byte type = body.getByte();
switch (type)
{
case DataConstants.BOOLEAN:
return String.valueOf(body.getBoolean());
case DataConstants.BYTE:
return String.valueOf(body.getByte());
case DataConstants.SHORT:
return String.valueOf(body.getShort());
case DataConstants.CHAR:
return String.valueOf(body.getChar());
case DataConstants.INT:
return String.valueOf(body.getInt());
case DataConstants.LONG:
return String.valueOf(body.getLong());
case DataConstants.FLOAT:
return String.valueOf(body.getFloat());
case DataConstants.DOUBLE:
return String.valueOf(body.getDouble());
case DataConstants.STRING:
return body.getNullableString();
default:
throw new MessageFormatException("Invalid conversion");
}
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
private int len;
public int readBytes(final byte[] value) throws JMSException
{
checkRead();
try
{
if (len == -1)
{
len = 0;
return -1;
}
else if (len == 0)
{
byte type = body.getByte();
if (type != DataConstants.BYTES)
{
throw new MessageFormatException("Invalid conversion");
}
len = body.getInt();
}
int read = Math.min(value.length, len);
body.getBytes(value, 0, read);
len -= read;
if (len == 0)
{
len = -1;
}
return read;
}
catch (BufferUnderflowException e)
{
throw new MessageEOFException("");
}
}
public Object readObject() throws JMSException
{
checkRead();
byte type = body.getByte();
switch (type)
{
case DataConstants.BOOLEAN:
return body.getBoolean();
case DataConstants.BYTE:
return body.getByte();
case DataConstants.SHORT:
return body.getShort();
case DataConstants.CHAR:
return body.getChar();
case DataConstants.INT:
return body.getInt();
case DataConstants.LONG:
return body.getLong();
case DataConstants.FLOAT:
return body.getFloat();
case DataConstants.DOUBLE:
return body.getDouble();
case DataConstants.STRING:
return body.getNullableString();
case DataConstants.BYTES:
int len = body.getInt();
byte[] bytes = new byte[len];
body.getBytes(bytes);
return bytes;
default:
throw new MessageFormatException("Invalid conversion");
}
}
public void writeBoolean(final boolean value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.BOOLEAN);
body.putBoolean(value);
}
public void writeByte(final byte value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.BYTE);
body.putByte(value);
}
public void writeShort(final short value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.SHORT);
body.putShort(value);
}
public void writeChar(final char value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.CHAR);
body.putChar(value);
}
public void writeInt(final int value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.INT);
body.putInt(value);
}
public void writeLong(final long value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.LONG);
body.putLong(value);
}
public void writeFloat(final float value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.FLOAT);
body.putFloat(value);
}
public void writeDouble(final double value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.DOUBLE);
body.putDouble(value);
}
public void writeString(final String value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.STRING);
body.putNullableString(value);
}
public void writeBytes(final byte[] value) throws JMSException
{
checkWrite();
body.putByte(DataConstants.BYTES);
body.putInt(value.length);
body.putBytes(value);
}
public void writeBytes(final byte[] value, final int offset, final int length)
throws JMSException
{
checkWrite();
body.putByte(DataConstants.BYTES);
body.putInt(length);
body.putBytes(value, offset, length);
}
public void writeObject(final Object value) throws JMSException
{
if (value == null)
{
throw new NullPointerException("Attempt to write a null value");
}
if (value instanceof String)
{
writeString((String)value);
}
else if (value instanceof Boolean)
{
writeBoolean((Boolean)value);
}
else if (value instanceof Byte)
{
writeByte((Byte)value);
}
else if (value instanceof Short)
{
writeShort((Short)value);
}
else if (value instanceof Integer)
{
writeInt((Integer)value);
}
else if (value instanceof Long)
{
writeLong((Long)value);
}
else if (value instanceof Float)
{
writeFloat((Float)value);
}
else if (value instanceof Double)
{
writeDouble((Double)value);
}
else if (value instanceof byte[])
{
writeBytes((byte[])value);
}
else if (value instanceof Character)
{
this.writeChar((Character)value);
}
else
{
throw new MessageFormatException("Invalid object type: " + value.getClass());
}
}
public void reset() throws JMSException
{
if (!readOnly)
{
readOnly = true;
body.flip();
}
else
{
body.rewind();
}
}
// JBossMessage overrides ----------------------------------------
public void clearBody() throws JMSException
{
super.clearBody();
body = new IoBufferWrapper(1024);
}
public void doBeforeSend() throws Exception
{
reset();
message.setBody(body);
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}