org.jboss.mq.SpyStreamMessage Maven / Gradle / Ivy
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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* 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.mq;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Vector;
import javax.jms.JMSException;
import javax.jms.MessageEOFException;
import javax.jms.MessageFormatException;
import javax.jms.MessageNotReadableException;
import javax.jms.MessageNotWriteableException;
import javax.jms.StreamMessage;
import org.jboss.util.Primitives;
/**
* This class implements javax.jms.StreamMessage
*
* @author Norbert Lataille ([email protected])
* @author Adrian Brock
* @version $Revision: 37459 $
*/
public class SpyStreamMessage extends SpyMessage implements StreamMessage, Cloneable, Externalizable
{
// Constants -----------------------------------------------------
/** The serialVersionUID */
private final static long serialVersionUID = 2490910971426786841L;
// Attributes ----------------------------------------------------
/** The content */
Vector content;
/** The position */
int position;
/** The offset */
int offset;
/** The size */
int size;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
/**
* Create a new SpyStreamMessage
*/
public SpyStreamMessage()
{
content = new Vector();
position = 0;
size = 0;
offset = 0;
}
// Public --------------------------------------------------------
// StreamMessage implementation ----------------------------------
public boolean readBoolean() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Boolean)
{
position++;
return ((Boolean) value).booleanValue();
}
else if (value instanceof String)
{
boolean result = Boolean.valueOf((String) value).booleanValue();
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public byte readByte() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Byte)
{
position++;
return ((Byte) value).byteValue();
}
else if (value instanceof String)
{
byte result = Byte.parseByte((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public short readShort() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Byte)
{
position++;
return ((Byte) value).shortValue();
}
else if (value instanceof Short)
{
position++;
return ((Short) value).shortValue();
}
else if (value instanceof String)
{
short result = Short.parseShort((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public char readChar() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Character)
{
position++;
return ((Character) value).charValue();
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public int readInt() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Byte)
{
position++;
return ((Byte) value).intValue();
}
else if (value instanceof Short)
{
position++;
return ((Short) value).intValue();
}
else if (value instanceof Integer)
{
position++;
return ((Integer) value).intValue();
}
else if (value instanceof String)
{
int result = Integer.parseInt((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public long readLong() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Byte)
{
position++;
return ((Byte) value).longValue();
}
else if (value instanceof Short)
{
position++;
return ((Short) value).longValue();
}
else if (value instanceof Integer)
{
position++;
return ((Integer) value).longValue();
}
else if (value instanceof Long)
{
position++;
return ((Long) value).longValue();
}
else if (value instanceof String)
{
long result = Long.parseLong((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public float readFloat() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Float)
{
position++;
return ((Float) value).floatValue();
}
else if (value instanceof String)
{
float result = Float.parseFloat((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public double readDouble() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
throw new NullPointerException("Value is null");
else if (value instanceof Float)
{
position++;
return ((Float) value).doubleValue();
}
else if (value instanceof Double)
{
position++;
return ((Double) value).doubleValue();
}
else if (value instanceof String)
{
double result = Double.parseDouble((String) value);
position++;
return result;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public String readString() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
offset = 0;
if (value == null)
{
position++;
return null;
}
else if (value instanceof Boolean)
{
position++;
return ((Boolean) value).toString();
}
else if (value instanceof Byte)
{
position++;
return ((Byte) value).toString();
}
else if (value instanceof Short)
{
position++;
return ((Short) value).toString();
}
else if (value instanceof Character)
{
position++;
return ((Character) value).toString();
}
else if (value instanceof Integer)
{
position++;
return ((Integer) value).toString();
}
else if (value instanceof Long)
{
position++;
return ((Long) value).toString();
}
else if (value instanceof Float)
{
position++;
return ((Float) value).toString();
}
else if (value instanceof Double)
{
position++;
return ((Double) value).toString();
}
else if (value instanceof String)
{
position++;
return (String) value;
}
else
throw new MessageFormatException("Invalid conversion");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public int readBytes(byte[] value) throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object myObj = content.get(position);
if (myObj == null)
throw new NullPointerException("Value is null");
else if (!(myObj instanceof byte[]))
throw new MessageFormatException("Invalid conversion");
byte[] obj = (byte[]) myObj;
if (obj.length == 0)
{
position++;
offset = 0;
return 0;
}
if (offset >= obj.length)
{
position++;
offset = 0;
return -1;
}
if (obj.length - offset < value.length)
{
for (int i = 0; i < obj.length; i++)
value[i] = obj[i + offset];
position++;
offset = 0;
return obj.length - offset;
}
else
{
for (int i = 0; i < value.length; i++)
value[i] = obj[i + offset];
offset += value.length;
return value.length;
}
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public Object readObject() throws JMSException
{
if (!header.msgReadOnly)
throw new MessageNotReadableException("The message body is writeonly");
try
{
Object value = content.get(position);
position++;
offset = 0;
return value;
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new MessageEOFException("");
}
}
public void writeBoolean(boolean value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(Primitives.valueOf(value));
}
public void writeByte(byte value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Byte(value));
}
public void writeShort(short value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Short(value));
}
public void writeChar(char value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Character(value));
}
public void writeInt(int value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Integer(value));
}
public void writeLong(long value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Long(value));
}
public void writeFloat(float value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Float(value));
}
public void writeDouble(double value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(new Double(value));
}
public void writeString(String value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
if (value == null)
content.add(null);
else
content.add(value);
}
public void writeBytes(byte[] value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
content.add(value.clone());
}
public void writeBytes(byte[] value, int offset, int length) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
if (offset + length > value.length)
throw new JMSException("Array is too small");
byte[] temp = new byte[length];
for (int i = 0; i < length; i++)
temp[i] = value[i + offset];
content.add(temp);
}
public void writeObject(Object value) throws JMSException
{
if (header.msgReadOnly)
throw new MessageNotWriteableException("The message body is readonly");
if (value == null)
content.add(null);
else if (value instanceof Boolean)
content.add(value);
else if (value instanceof Byte)
content.add(value);
else if (value instanceof Short)
content.add(value);
else if (value instanceof Character)
content.add(value);
else if (value instanceof Integer)
content.add(value);
else if (value instanceof Long)
content.add(value);
else if (value instanceof Float)
content.add(value);
else if (value instanceof Double)
content.add(value);
else if (value instanceof String)
content.add(value);
else if (value instanceof byte[])
content.add(((byte[]) value).clone());
else
throw new MessageFormatException("Invalid object type");
}
public void reset() throws JMSException
{
header.msgReadOnly = true;
position = 0;
size = content.size();
offset = 0;
}
// SpyMessage overrides ------------------------------------------
public void clearBody() throws JMSException
{
content = new Vector();
position = 0;
offset = 0;
size = 0;
super.clearBody();
}
public SpyMessage myClone() throws JMSException
{
SpyStreamMessage result = MessagePool.getStreamMessage();
result.copyProps(this);
result.content = (Vector) this.content.clone();
result.position = this.position;
result.offset = this.offset;
result.size = this.size;
return result;
}
// Externalizable implementation ---------------------------------
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
{
super.readExternal(in);
content = (Vector) in.readObject();
position = in.readInt();
offset = in.readInt();
size = in.readInt();
}
public void writeExternal(ObjectOutput out) throws IOException
{
super.writeExternal(out);
out.writeObject(content);
out.writeInt(position);
out.writeInt(offset);
out.writeInt(size);
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}