/**
* @param clusterKey
* @return Serialized protobuf of <code>clusterKey</code> with pb magic prefix prepended suitable
* for use as content of a this.peersZNode; i.e. the content of PEER_ID znode under
* /hbase/replication/peers/PEER_ID
*/
private static byte[] toByteArray(final String clusterKey) {
byte[] bytes =
ZooKeeperProtos.ReplicationPeer.newBuilder()
.setClusterkey(clusterKey)
.build()
.toByteArray();
return ProtobufUtil.prependPBMagic(bytes);
}
/**
* @param bytes Content of a peer znode.
* @return ClusterKey parsed from the passed bytes.
* @throws DeserializationException
*/
private static String parsePeerFrom(final byte[] bytes) throws DeserializationException {
if (ProtobufUtil.isPBMagicPrefix(bytes)) {
int pblen = ProtobufUtil.lengthOfPBMagic();
ZooKeeperProtos.ReplicationPeer.Builder builder =
ZooKeeperProtos.ReplicationPeer.newBuilder();
ZooKeeperProtos.ReplicationPeer peer;
try {
peer = builder.mergeFrom(bytes, pblen, bytes.length - pblen).build();
} catch (InvalidProtocolBufferException e) {
throw new DeserializationException(e);
}
return peer.getClusterkey();
} else {
if (bytes.length > 0) {
return Bytes.toString(bytes);
}
return "";
}
}