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/**
This file is part of the Zeidon Java Object Engine (Zeidon JOE).
Zeidon JOE 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 3 of the License, or
(at your option) any later version.
Zeidon JOE 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 Zeidon JOE. If not, see .
Copyright 2009-2015 QuinSoft
*/
package com.quinsoft.zeidon.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
/**
* A forwarding wrapper of InputStream that includes a string describing
* the source of the input stream.
*
* @author dgc
*
*/
public class ZeidonInputStream extends InputStream
{
private final InputStream source;
private final String description;
/**
*
*/
public ZeidonInputStream( InputStream sourceInputStream, String desc )
{
super();
source = sourceInputStream;
description = desc;
}
@Override
public int read() throws IOException
{
return source.read();
}
/* (non-Javadoc)
* @see java.io.InputStream#available()
*/
@Override
public int available() throws IOException
{
return source.available();
}
/* (non-Javadoc)
* @see java.io.InputStream#close()
*/
@Override
public void close() throws IOException
{
source.close();
}
/* (non-Javadoc)
* @see java.io.InputStream#mark(int)
*/
@Override
public void mark( int readlimit )
{
source.mark( readlimit );
}
/* (non-Javadoc)
* @see java.io.InputStream#markSupported()
*/
@Override
public boolean markSupported()
{
return source.markSupported();
}
/* (non-Javadoc)
* @see java.io.InputStream#read(byte[], int, int)
*/
@Override
public int read( byte[] b, int off, int len ) throws IOException
{
int i = source.read( b, off, len );
return i;
}
/* (non-Javadoc)
* @see java.io.InputStream#read(byte[])
*/
@Override
public int read( byte[] b ) throws IOException
{
return source.read( b );
}
/* (non-Javadoc)
* @see java.io.InputStream#reset()
*/
@Override
public synchronized void reset() throws IOException
{
source.reset();
}
/* (non-Javadoc)
* @see java.io.InputStream#skip(long)
*/
@Override
public long skip( long n ) throws IOException
{
return source.skip( n );
}
public String getDescription()
{
return description;
}
@Override
public String toString()
{
return "ZeidonInputStream: " + description;
}
static public ZeidonInputStream create( File file ) throws FileNotFoundException
{
return new ZeidonInputStream ( new FileInputStream( file ), file.getAbsolutePath() );
}
static public ZeidonInputStream create( URL url ) throws IOException
{
return new ZeidonInputStream ( url.openStream(), url.toString() );
}
static public ZeidonInputStream create( ClassLoader classLoader, String resource )
{
InputStream is = classLoader.getResourceAsStream( resource );
if ( is == null )
return null;
String desc = String.format( "Resource '%s' from classLoader %s", resource, classLoader.toString() );
return new ZeidonInputStream ( is, desc );
}
}
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