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/*
* Java Tee Stream Library
*
* Copyright (c) Matthew Johnson 2005
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* To Contact the author, please email src@matthew.ath.cx
*
*/
package cx.ath.matthew.io;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FilterInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* Class to copy a stream to a file or another stream as it is being sent through a stream pipe
* E.g.
* <pre>
* Reader r = new InputStreamReader(new TeeInputStream(new FileInputStream("file"), new File("otherfile")));
* </pre>
*/
public class TeeInputStream extends FilterInputStream
{
private InputStream in;
private OutputStream fos;
/**
* Create a new TeeInputStream on the given InputStream
* and copy the stream to the given File.
* @param is Reads from this InputStream
* @param tos Write to this OutputStream
*/
public TeeInputStream(InputStream is, OutputStream tos) throws IOException
{
super(is);
this.in = is;
this.fos = tos;
}
/**
* Create a new TeeInputStream on the given InputStream
* and copy the stream to the given File.
* @param is Reads from this InputStream
* @param f Write to this File
* @param append Append to file not overwrite
*/
public TeeInputStream(InputStream is, File f, boolean append) throws IOException
{
super(is);
this.in = is;
this.fos = new FileOutputStream(f, append);
}
/**
* Create a new TeeInputStream on the given InputStream
* and copy the stream to the given File.
* @param is Reads from this InputStream
* @param f Write to this File
*/
public TeeInputStream(InputStream is, File f) throws IOException
{
super(is);
this.in = is;
this.fos = new FileOutputStream(f);
}
/**
* Create a new TeeInputStream on the given InputStream
* and copy the stream to the given File.
* @param is Reads from this InputStream
* @param f Write to this File
* @param append Append to file not overwrite
*/
public TeeInputStream(InputStream is, String f, boolean append) throws IOException
{
this(is, new File(f), append);
}
/**
* Create a new TeeInputStream on the given InputStream
* and copy the stream to the given File.
* @param is Reads from this InputStream
* @param f Write to this File
*/
public TeeInputStream(InputStream is, String f) throws IOException
{
this(is, new File(f));
}
public void close() throws IOException
{
in.close();
fos.close();
}
public void flush() throws IOException
{
fos.flush();
}
public int available() throws IOException
{
return in.available();
}
public int read() throws IOException
{
int i = in.read();
if (-1 != i) fos.write(i);
return i;
}
public int read(byte[] b) throws IOException
{
int c = in.read(b);
if (-1 != c) fos.write(b, 0, c);
return c;
}
public int read(byte[] b, int off, int len) throws IOException
{
int c = in.read(b, off, len);
if (-1 != c) fos.write(b, off, c);
return c;
}
public long skip(long n) throws IOException
{ return in.skip(n); }
public void mark(int readlimit)
{}
public boolean markSupported()
{ return false; }
public void reset() throws IOException
{ in.reset(); }
public void finalize()
{
try {
close();
} catch (Exception e) {}
}
}
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