/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file 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.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.MessageFormatException;
import javax.jms.MessageNotWriteableException;

import org.jboss.util.Primitives;

/**
 * This class implements javax.jms.MapMessage
 * 
 * @author Norbert Lataille (Norbert.Lataille@m4x.org)
 * @author <a href="mailto:adrian@jboss.org">Adrian Brock</a>
 * @version $Revision: 57198 $
 */
public class SpyMapMessage extends SpyMessage implements MapMessage, Externalizable
{
   // Constants -----------------------------------------------------

   /** The serialVersionUID */
   private final static long serialVersionUID = -4917633165373197269L;

   // Attributes ----------------------------------------------------

   /** The content */
   HashMap content;

   // Static --------------------------------------------------------

   // Constructors --------------------------------------------------

   /**
	 * Create a new SpyMapMessage
	 */
   public SpyMapMessage()
   {
      content = new HashMap();
   }

   // Public --------------------------------------------------------

   // MapMessage implementation -------------------------------------

   public void setBoolean(String name, boolean value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, Primitives.valueOf(value));
      }
   }

   public void setByte(String name, byte value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Byte(value));
      }
   }

   public void setShort(String name, short value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Short(value));
      }
   }

   public void setChar(String name, char value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Character(value));
      }
   }

   public void setInt(String name, int value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Integer(value));
      }
   }

   public void setLong(String name, long value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Long(value));
      }
   }

   public void setFloat(String name, float value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Float(value));
      }
   }

   public void setDouble(String name, double value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, new Double(value));
      }
   }

   public void setString(String name, String value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, value);
      }
   }

   public void setBytes(String name, byte[] value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");
      synchronized (content)
      {
         content.put(name, value.clone());
      }
   }

   public void setBytes(String name, byte[] value, int offset, int length) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message 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];

      synchronized (content)
      {
         content.put(name, temp);
      }
   }

   public void setObject(String name, Object value) throws JMSException
   {
      checkName(name);
      if (header.msgReadOnly)
         throw new MessageNotWriteableException("Message is ReadOnly !");

      synchronized (content)
      {
         if (value instanceof Boolean)
            content.put(name, value);
         else if (value instanceof Byte)
            content.put(name, value);
         else if (value instanceof Short)
            content.put(name, value);
         else if (value instanceof Character)
            content.put(name, value);
         else if (value instanceof Integer)
            content.put(name, value);
         else if (value instanceof Long)
            content.put(name, value);
         else if (value instanceof Float)
            content.put(name, value);
         else if (value instanceof Double)
            content.put(name, value);
         else if (value instanceof String)
            content.put(name, value);
         else if (value instanceof byte[])
            content.put(name, ((byte[]) value).clone());
         else
            throw new MessageFormatException("Invalid object type.");
      }
   }

   public boolean getBoolean(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Boolean.valueOf(null).booleanValue();

      if (value instanceof Boolean)
         return ((Boolean) value).booleanValue();
      else if (value instanceof String)
         return Boolean.valueOf((String) value).booleanValue();
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public byte getByte(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Byte.parseByte(null);

      if (value instanceof Byte)
         return ((Byte) value).byteValue();
      else if (value instanceof String)
         return Byte.parseByte((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public short getShort(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Short.parseShort(null);

      if (value instanceof Byte)
         return ((Byte) value).shortValue();
      else if (value instanceof Short)
         return ((Short) value).shortValue();
      else if (value instanceof String)
         return Short.parseShort((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public char getChar(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         throw new NullPointerException("Invalid conversion");

      if (value instanceof Character)
         return ((Character) value).charValue();
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public int getInt(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Integer.parseInt(null);

      if (value instanceof Byte)
         return ((Byte) value).intValue();
      else if (value instanceof Short)
         return ((Short) value).intValue();
      else if (value instanceof Integer)
         return ((Integer) value).intValue();
      else if (value instanceof String)
         return Integer.parseInt((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public long getLong(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Long.parseLong(null);

      if (value instanceof Byte)
         return ((Byte) value).longValue();
      else if (value instanceof Short)
         return ((Short) value).longValue();
      else if (value instanceof Integer)
         return ((Integer) value).longValue();
      else if (value instanceof Long)
         return ((Long) value).longValue();
      else if (value instanceof String)
         return Long.parseLong((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public float getFloat(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Float.parseFloat(null);

      if (value instanceof Float)
         return ((Float) value).floatValue();
      else if (value instanceof String)
         return Float.parseFloat((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public double getDouble(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return Double.parseDouble(null);

      if (value instanceof Float)
         return ((Float) value).doubleValue();
      else if (value instanceof Double)
         return ((Double) value).doubleValue();
      else if (value instanceof String)
         return Double.parseDouble((String) value);
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public String getString(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return null;

      if (value instanceof Boolean)
         return ((Boolean) value).toString();
      else if (value instanceof Byte)
         return ((Byte) value).toString();
      else if (value instanceof Short)
         return ((Short) value).toString();
      else if (value instanceof Character)
         return ((Character) value).toString();
      else if (value instanceof Integer)
         return ((Integer) value).toString();
      else if (value instanceof Long)
         return ((Long) value).toString();
      else if (value instanceof Float)
         return ((Float) value).toString();
      else if (value instanceof Double)
         return ((Double) value).toString();
      else if (value instanceof String)
         return (String) value;
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public byte[] getBytes(String name) throws JMSException
   {
      Object value;
      synchronized (content)
      {
         value = content.get(name);
      }
      if (value == null)
         return null;
      if (value instanceof byte[])
         return (byte[]) value;
      else
         throw new MessageFormatException("Invalid conversion");
   }

   public Object getObject(String name) throws JMSException
   {
      synchronized (content)
      {
         return content.get(name);
      }
   }

   public Enumeration getMapNames() throws JMSException
   {
      synchronized (content)
      {
         return Collections.enumeration(new HashMap(content).keySet());
      }
   }

   public boolean itemExists(String name) throws JMSException
   {
      synchronized (content)
      {
         return content.containsKey(name);
      }
   }

   // SpyMessage overrides ------------------------------------------
   
   public void clearBody() throws JMSException
   {
      content = new HashMap();
      super.clearBody();
   }

   public SpyMessage myClone() throws JMSException
   {
      SpyMapMessage result = MessagePool.getMapMessage();
      result.copyProps(this);
      synchronized (content)
      {
         result.content = (HashMap) this.content.clone();
      }
      return result;
   }

   // Externalizable implementation ---------------------------------
   
   public void writeExternal(ObjectOutput out) throws IOException
   {
      super.writeExternal(out);
      // TODO: For backwards compatbility this should really
      //       write out a hashtable. But if the content contained nulls
      //       the old client wouldn't be able to deserialize it anyway.
      out.writeObject(content);
   }

   public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
   {
      super.readExternal(in);
      Object object = in.readObject();
      // This is a hack for backwards compatibility
      if (object instanceof Hashtable)
      {
         Hashtable ht = (Hashtable) object;
         content = new HashMap(ht.size());
         content.putAll(ht);
      }
      else
         content = (HashMap) object;
   }
   
   // Package protected ---------------------------------------------

   // Protected -----------------------------------------------------

   // Private -------------------------------------------------------

   /**
	 * Check the name
	 * 
	 * @param name the name
	 */
   private void checkName(String name)
   {
      if (name == null)
         throw new IllegalArgumentException("Name must not be null.");

      if (name.equals(""))
         throw new IllegalArgumentException("Name must not be an empty String.");
   }

   // Inner classes -------------------------------------------------

}
/*
 * vim:ts=3:sw=3:et
 */