/// <exception cref="System.Exception"/>
public virtual HdfsBlocksMetadata Call()
{
HdfsBlocksMetadata metadata = null;
// Create the RPC proxy and make the RPC
ClientDatanodeProtocol cdp = null;
TraceScope scope = Trace.StartSpan("getHdfsBlocksMetadata", parentSpan);
try
{
cdp = DFSUtil.CreateClientDatanodeProtocolProxy(datanode, configuration, timeout,
connectToDnViaHostname);
metadata = cdp.GetHdfsBlocksMetadata(poolId, blockIds, dnTokens);
}
catch (IOException e)
{
// Bubble this up to the caller, handle with the Future
throw;
}
finally
{
scope.Close();
if (cdp != null)
{
RPC.StopProxy(cdp);
}
}
return(metadata);
}
/// <exception cref="Com.Google.Protobuf.ServiceException"/>
public virtual ClientDatanodeProtocolProtos.GetHdfsBlockLocationsResponseProto GetHdfsBlockLocations
(RpcController controller, ClientDatanodeProtocolProtos.GetHdfsBlockLocationsRequestProto
request)
{
HdfsBlocksMetadata resp;
try
{
string poolId = request.GetBlockPoolId();
IList <Org.Apache.Hadoop.Security.Token.Token <BlockTokenIdentifier> > tokens = new
AList <Org.Apache.Hadoop.Security.Token.Token <BlockTokenIdentifier> >(request.GetTokensCount
());
foreach (SecurityProtos.TokenProto b in request.GetTokensList())
{
tokens.AddItem(PBHelper.Convert(b));
}
long[] blockIds = Longs.ToArray(request.GetBlockIdsList());
// Call the real implementation
resp = impl.GetHdfsBlocksMetadata(poolId, blockIds, tokens);
}
catch (IOException e)
{
throw new ServiceException(e);
}
IList <ByteString> volumeIdsByteStrings = new AList <ByteString>(resp.GetVolumeIds(
).Count);
foreach (byte[] b_1 in resp.GetVolumeIds())
{
volumeIdsByteStrings.AddItem(ByteString.CopyFrom(b_1));
}
// Build and return the response
ClientDatanodeProtocolProtos.GetHdfsBlockLocationsResponseProto.Builder builder =
ClientDatanodeProtocolProtos.GetHdfsBlockLocationsResponseProto.NewBuilder();
builder.AddAllVolumeIds(volumeIdsByteStrings);
builder.AddAllVolumeIndexes(resp.GetVolumeIndexes());
return((ClientDatanodeProtocolProtos.GetHdfsBlockLocationsResponseProto)builder.
Build());
}
