/** {@inheritDoc} */
@Override
public void removeEventListener(HadoopIgfsStreamDelegate desc) {
long streamId = desc.target();
HadoopIgfsStreamEventListener lsnr0 = lsnrs.remove(streamId);
if (lsnr0 != null && log.isDebugEnabled())
log.debug("Removed stream event listener [streamId=" + streamId + ']');
}
/** {@inheritDoc} */
@Override
public void addEventListener(HadoopIgfsStreamDelegate desc, HadoopIgfsStreamEventListener lsnr) {
long streamId = desc.target();
HadoopIgfsStreamEventListener lsnr0 = lsnrs.put(streamId, lsnr);
assert lsnr0 == null || lsnr0 == lsnr;
if (log.isDebugEnabled()) log.debug("Added stream event listener [streamId=" + streamId + ']');
}
/** {@inheritDoc} */
@Override
public void closeStream(HadoopIgfsStreamDelegate desc) throws IOException {
final IgfsStreamControlRequest msg = new IgfsStreamControlRequest();
msg.command(CLOSE);
msg.streamId((long) desc.target());
try {
io.send(msg).chain(BOOL_RES).get();
} catch (IgniteCheckedException e) {
throw HadoopIgfsUtils.cast(e);
}
}
/** {@inheritDoc} */
@Override
public void writeData(HadoopIgfsStreamDelegate desc, byte[] data, int off, int len)
throws IOException {
final IgfsStreamControlRequest msg = new IgfsStreamControlRequest();
msg.command(WRITE_BLOCK);
msg.streamId((long) desc.target());
msg.data(data);
msg.position(off);
msg.length(len);
try {
io.sendPlain(msg);
} catch (IgniteCheckedException e) {
throw HadoopIgfsUtils.cast(e);
}
}
/** {@inheritDoc} */
@Override
public IgniteInternalFuture<byte[]> readData(
HadoopIgfsStreamDelegate desc,
long pos,
int len,
final @Nullable byte[] outBuf,
final int outOff,
final int outLen) {
assert len > 0;
final IgfsStreamControlRequest msg = new IgfsStreamControlRequest();
msg.command(READ_BLOCK);
msg.streamId((long) desc.target());
msg.position(pos);
msg.length(len);
try {
return io.send(msg, outBuf, outOff, outLen);
} catch (IgniteCheckedException e) {
return new GridFinishedFuture<>(e);
}
}
