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/*
* Copyright (C) 2007-2012 Xagasoft, All rights reserved.
*
* This file is part of the libgats library and is released under the
* terms of the license contained in the file LICENSE.
*/
package com.xagasoft.gats;
import java.io.InputStream;
import java.io.OutputStream;
/**
* The abstract base class of all Gats storage classes. You probably don't
* need to worry about these functions at all, maybe getType. The IO functions
* in this class shouldn't really be used since they won't contain the proper
* packet header info. See com.xagasoft.gats.GatsOutputStream and
* com.xagasoft.gats.GatsInputStream for that.
*/
public abstract class GatsObject
{
public final static int INTEGER = 1;
public final static int FLOAT = 2;
public final static int STRING = 3;
public final static int LIST = 4;
public final static int DICTIONARY = 5;
public final static int BOOLEAN = 6;
public final static int NULL = 7;
/**
* Gets the type of the current object, type can be one of INTEGER, FLOAT,
* STRING, LIST, DICTIONARY, or BOOLEAN.
*/
public abstract int getType();
/**
* Read an object from the given input stream, with a particular type, this
* function is used internally.
*/
abstract void read( InputStream is, char cType ) throws java.io.IOException;
/**
* Write the current object to the output stream.
*/
abstract void write( OutputStream os ) throws java.io.IOException;
/**
* Static function that returns a new object deserialized from an input
* stream. This still doesn't take advantage of packet data, so you
* probably shouldn't use this yourself.
*/
static GatsObject read( InputStream is ) throws java.io.IOException
{
int b = is.read();
char type = (char)b;
GatsObject goRet = null;
switch( type )
{
case 'i':
goRet = new GatsInteger();
break;
case 's':
goRet = new GatsString();
break;
case '0':
case '1':
goRet = new GatsBoolean();
break;
case 'l':
goRet = new GatsList();
break;
case 'd':
goRet = new GatsDictionary();
break;
case 'f':
case 'F':
goRet = new GatsFloat();
break;
case 'n':
goRet = new GatsNull();
break;
case 'e':
return null;
default:
throw new java.io.IOException("Invalid gats type discovered: " + type + ", (" + b + ")" );
}
goRet.read( is, type );
return goRet;
}
};
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