/// <summary>Get a BlockReader for the given block.</summary>
/// <exception cref="System.IO.IOException"/>
public static BlockReader GetBlockReader(MiniDFSCluster cluster, LocatedBlock testBlock
, int offset, int lenToRead)
{
IPEndPoint targetAddr = null;
ExtendedBlock block = testBlock.GetBlock();
DatanodeInfo[] nodes = testBlock.GetLocations();
targetAddr = NetUtils.CreateSocketAddr(nodes[0].GetXferAddr());
DistributedFileSystem fs = cluster.GetFileSystem();
return(new BlockReaderFactory(fs.GetClient().GetConf()).SetInetSocketAddress(targetAddr
).SetBlock(block).SetFileName(targetAddr.ToString() + ":" + block.GetBlockId()).
SetBlockToken(testBlock.GetBlockToken()).SetStartOffset(offset).SetLength(lenToRead
).SetVerifyChecksum(true).SetClientName("BlockReaderTestUtil").SetDatanodeInfo(nodes
[0]).SetClientCacheContext(ClientContext.GetFromConf(fs.GetConf())).SetCachingStrategy
(CachingStrategy.NewDefaultStrategy()).SetConfiguration(fs.GetConf()).SetAllowShortCircuitLocalReads
(true).SetRemotePeerFactory(new _RemotePeerFactory_196(fs)).Build());
}