private ChannelFuture sendFile(ChannelHandlerContext ctx, Channel ch, FileChunk file)
throws IOException {
RandomAccessFile raf;
try {
raf = new RandomAccessFile(file.getFile(), "r");
} catch (FileNotFoundException fnfe) {
return null;
}
ChannelFuture writeFuture;
if (ch.getPipeline().get(SslHandler.class) != null) {
// Cannot use zero-copy with HTTPS.
writeFuture = ch.write(new ChunkedFile(raf, file.startOffset(), file.length(), 8192));
} else {
// No encryption - use zero-copy.
final FileRegion region =
new DefaultFileRegion(raf.getChannel(), file.startOffset(), file.length());
writeFuture = ch.write(region);
writeFuture.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture future) {
region.releaseExternalResources();
}
});
}
return writeFuture;
}
private ChannelFuture sendFile(ChannelHandlerContext ctx, Channel ch, FileChunk file)
throws IOException {
RandomAccessFile spill;
try {
spill = new RandomAccessFile(file.getFile(), "r");
} catch (FileNotFoundException e) {
LOG.info(file.getFile() + " not found");
return null;
}
ChannelFuture writeFuture;
if (ch.getPipeline().get(SslHandler.class) == null) {
final FadvisedFileRegion partition =
new FadvisedFileRegion(
spill,
file.startOffset,
file.length(),
manageOsCache,
readaheadLength,
readaheadPool,
file.getFile().getAbsolutePath());
writeFuture = ch.write(partition);
writeFuture.addListener(
new ChannelFutureListener() {
// TODO error handling; distinguish IO/connection failures,
// attribute to appropriate spill output
@Override
public void operationComplete(ChannelFuture future) {
partition.releaseExternalResources();
}
});
} else {
// HTTPS cannot be done with zero copy.
final FadvisedChunkedFile chunk =
new FadvisedChunkedFile(
spill,
file.startOffset,
file.length,
sslFileBufferSize,
manageOsCache,
readaheadLength,
readaheadPool,
file.getFile().getAbsolutePath());
writeFuture = ch.write(chunk);
}
metrics.shuffleConnections.incr();
metrics.shuffleOutputBytes.incr(file.length); // optimistic
return writeFuture;
}