net.pms.io.OutputBufferConsumer Maven / Gradle / Ivy
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/*
* PS3 Media Server, for streaming any medias to your PS3.
* Copyright (C) 2008 A.Brochard
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License only.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package net.pms.io;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class OutputBufferConsumer extends OutputConsumer {
private static final Logger logger = LoggerFactory.getLogger(OutputBufferConsumer.class);
private BufferedOutputFile outputBuffer;
/**
* Size of a buffer in bytes. The buffer is used to copy data from an
* {@link java.io.InputStream InputStream} to an {@link java.io.OutputStream OutputStream}
* such as {@link net.pms.io.BufferedOutputFile BufferedOutputFile}.
*
* It is unknown up front how many bytes will be read at once by
* {@link java.io.InputStream#read(byte[]) read(byte[])}, but it will never be more than
* the buffer size that we define here. Tests show varying numbers between 2048 and 450560
* being copied, with 8192 being most commonly used, probably because that is the default
* size for {@link org.jboss.netty.channel.Channel Channel} packets.
*/
private static final int PIPE_BUFFER_SIZE = 500000;
public OutputBufferConsumer(InputStream inputStream, OutputParams params) {
super(inputStream);
outputBuffer = new BufferedOutputFileImpl(params);
}
public void run() {
try {
//logger.trace("Starting read from pipe");
byte buf[] = new byte[PIPE_BUFFER_SIZE];
int n = 0;
while ((n = inputStream.read(buf)) > 0) {
//logger.trace("Fetched " + n + " from pipe");
outputBuffer.write(buf, 0, n);
}
//logger.debug("Finished to read");
} catch (IOException ioe) {
logger.debug("Error consuming stream of spawned process: " + ioe.getMessage());
} finally {
//logger.trace("Closing read from pipe");
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
logger.debug("Caught exception", e);
}
}
}
}
public BufferedOutputFile getBuffer() {
return outputBuffer;
}
public List getResults() {
return null;
}
}