org.refcodes.io.OutputStreamComposite Maven / Gradle / Ivy
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Artifact with commonly used I/O functionality and for connection related
issues such as receiving or transmitting data in a unified way.
// /////////////////////////////////////////////////////////////////////////////
// REFCODES.ORG
// /////////////////////////////////////////////////////////////////////////////
// This code is copyright (c) by Siegfried Steiner, Munich, Germany, distributed
// on an "AS IS" BASIS WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, and licen-
// sed under the following (see "http://en.wikipedia.org/wiki/Multi-licensing")
// licenses:
// -----------------------------------------------------------------------------
// GNU General Public License, v3.0 ("http://www.gnu.org/licenses/gpl-3.0.html")
// -----------------------------------------------------------------------------
// Apache License, v2.0 ("http://www.apache.org/licenses/TEXT-2.0")
// -----------------------------------------------------------------------------
// Please contact the copyright holding author(s) of the software artifacts in
// question for licensing issues not being covered by the above listed licenses,
// also regarding commercial licensing models or regarding the compatibility
// with other open source licenses.
// /////////////////////////////////////////////////////////////////////////////
package org.refcodes.io;
import java.io.IOException;
import java.io.OutputStream;
/**
* A {@link OutputStreamComposite} wraps multiple {@link OutputStream} instances
* to which to dispatch any operation applied to the
* {@link OutputStreamComposite} instance. This implementation does not use
* threads so you may have take care on the order of the {@link OutputStream}
* instances passed to the constructor(s) as the operations a dispatched to the
* {@link OutputStream} instances in that order as they were provided. The
* {@link OutputStreamComposite} is most useful when capturing data written to
* an {@link OutputStream} e.g. with the {@link HexOutputStream} type.
*/
public class OutputStreamComposite extends OutputStream {
// /////////////////////////////////////////////////////////////////////////
// VARIABLES:
// /////////////////////////////////////////////////////////////////////////
private final OutputStream[] _outputStreams;
// /////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS:
// /////////////////////////////////////////////////////////////////////////
/**
* Constructs a {@link OutputStreamComposite} with the given
* {@link OutputStream} instances to which to spread the data written to
* this {@link OutputStreamComposite} instance.
*
* @param aOutputStreams The {@link OutputStream} instances to which all
* operations are to be dispatched.
*/
public OutputStreamComposite( OutputStream... aOutputStreams ) {
_outputStreams = aOutputStreams;
}
// /////////////////////////////////////////////////////////////////////////
// METHODS:
// /////////////////////////////////////////////////////////////////////////
/**
* {@inheritDoc}
*/
@Override
public void write( int b ) throws IOException {
for ( OutputStream eStream : _outputStreams ) {
eStream.write( b );
}
}
/**
* {@inheritDoc}
*/
@Override
public void write( byte[] b ) throws IOException {
for ( OutputStream eStream : _outputStreams ) {
eStream.write( b );
}
}
/**
* {@inheritDoc}
*/
@Override
public void write( byte[] b, int off, int len ) throws IOException {
for ( OutputStream eStream : _outputStreams ) {
eStream.write( b, off, len );
}
}
/**
* {@inheritDoc}
*/
@Override
public void flush() throws IOException {
for ( OutputStream eStream : _outputStreams ) {
eStream.flush();
}
}
/**
* {@inheritDoc}
*/
@Override
public void close() throws IOException {
super.close();
for ( OutputStream eStream : _outputStreams ) {
eStream.close();
}
}
}