/// <exception cref="System.IO.IOException"/>
public virtual HdfsBlocksMetadata GetHdfsBlocksMetadata(string blockPoolId, long[]
blockIds, IList <Org.Apache.Hadoop.Security.Token.Token <BlockTokenIdentifier> > tokens
)
{
IList <SecurityProtos.TokenProto> tokensProtos = new AList <SecurityProtos.TokenProto
>(tokens.Count);
foreach (Org.Apache.Hadoop.Security.Token.Token <BlockTokenIdentifier> t in tokens)
{
tokensProtos.AddItem(PBHelper.Convert(t));
}
// Build the request
ClientDatanodeProtocolProtos.GetHdfsBlockLocationsRequestProto request = ((ClientDatanodeProtocolProtos.GetHdfsBlockLocationsRequestProto
)ClientDatanodeProtocolProtos.GetHdfsBlockLocationsRequestProto.NewBuilder().SetBlockPoolId
(blockPoolId).AddAllBlockIds(Longs.AsList(blockIds)).AddAllTokens(tokensProtos).
Build());
// Send the RPC
ClientDatanodeProtocolProtos.GetHdfsBlockLocationsResponseProto response;
try
{
response = rpcProxy.GetHdfsBlockLocations(NullController, request);
}
catch (ServiceException e)
{
throw ProtobufHelper.GetRemoteException(e);
}
// List of volumes in the response
IList <ByteString> volumeIdsByteStrings = response.GetVolumeIdsList();
IList <byte[]> volumeIds = new AList <byte[]>(volumeIdsByteStrings.Count);
foreach (ByteString bs in volumeIdsByteStrings)
{
volumeIds.AddItem(bs.ToByteArray());
}
// Array of indexes into the list of volumes, one per block
IList <int> volumeIndexes = response.GetVolumeIndexesList();
// Parsed HdfsVolumeId values, one per block
return(new HdfsBlocksMetadata(blockPoolId, blockIds, volumeIds, volumeIndexes));
}
public override string ToString()
{
return("Metadata for " + blockIds.Length + " blocks in " + blockPoolId + ": " + Joiner
.On(",").Join(Longs.AsList(blockIds)));
}