/// <exception cref="System.IO.IOException"/>
public override void ReadBlock(ExtendedBlock blk, Org.Apache.Hadoop.Security.Token.Token
<BlockTokenIdentifier> blockToken, string clientName, long blockOffset, long length
, bool sendChecksum, CachingStrategy cachingStrategy)
{
DataTransferProtos.OpReadBlockProto proto = ((DataTransferProtos.OpReadBlockProto
)DataTransferProtos.OpReadBlockProto.NewBuilder().SetHeader(DataTransferProtoUtil
.BuildClientHeader(blk, clientName, blockToken)).SetOffset(blockOffset).SetLen(length
).SetSendChecksums(sendChecksum).SetCachingStrategy(GetCachingStrategy(cachingStrategy
)).Build());
Send(@out, OP.ReadBlock, proto);
}
/// <summary>Receive OP_READ_BLOCK</summary>
/// <exception cref="System.IO.IOException"/>
private void OpReadBlock()
{
DataTransferProtos.OpReadBlockProto proto = DataTransferProtos.OpReadBlockProto.ParseFrom
(PBHelper.VintPrefixed(@in));
TraceScope traceScope = DataTransferProtoUtil.ContinueTraceSpan(proto.GetHeader()
, proto.GetType().Name);
try
{
ReadBlock(PBHelper.Convert(proto.GetHeader().GetBaseHeader().GetBlock()), PBHelper
.Convert(proto.GetHeader().GetBaseHeader().GetToken()), proto.GetHeader().GetClientName
(), proto.GetOffset(), proto.GetLen(), proto.GetSendChecksums(), (proto.HasCachingStrategy
() ? GetCachingStrategy(proto.GetCachingStrategy()) : CachingStrategy.NewDefaultStrategy
()));
}
finally
{
if (traceScope != null)
{
traceScope.Close();
}
}
}
