@Override
public DirectByteBuffer[] getData() {
try {
if (buffer == null) {
if (msg_type == REQUEST_MESSAGE_TYPE_ID) {
Map<Object, Object> map = new HashMap<Object, Object>();
map.put("msg_type", msg_type);
map.put("piece", piece);
buffer =
MessagingUtil.convertPayloadToBencodedByteStream(
map, DirectByteBuffer.AL_MSG_UT_METADATA);
} else if (msg_type == DATA_MESSAGE_TYPE_ID) {
Map<Object, Object> map = new HashMap<Object, Object>();
map.put("msg_type", msg_type);
map.put("piece", piece);
map.put("total_size", total_size);
byte[] mapPayload = BEncoder.encode(map);
buffer =
DirectByteBufferPool.getBuffer(
DirectByteBuffer.AL_MSG_UT_METADATA, mapPayload.length + metadata.length);
buffer.put(DirectByteBuffer.SS_MSG, mapPayload);
buffer.put(DirectByteBuffer.SS_MSG, metadata);
buffer.flip(DirectByteBuffer.SS_MSG);
} else if (msg_type == REJECT_MESSAGE_TYPE_ID) {
Map<Object, Object> map = new HashMap<Object, Object>();
map.put("msg_type", msg_type);
map.put("piece", piece);
buffer =
MessagingUtil.convertPayloadToBencodedByteStream(
map, DirectByteBuffer.AL_MSG_UT_METADATA);
} else {
if (Logger.isEnabled()) {
Logger.log(
new LogEvent(
LOGID, LogEvent.LT_ERROR, "METADATA (UT): No valid msg_type=" + msg_type));
}
return null;
}
}
return new DirectByteBuffer[] {buffer};
} catch (Throwable e) {
// what is the best way to handle this error?
if (Logger.isEnabled()) {
Logger.log(new LogEvent(LOGID, LogEvent.LT_ERROR, "METADATA (UT)", e));
}
return new DirectByteBuffer[0];
}
}
