/// <summary>Read the checksum header from the meta input stream.</summary>
/// <returns>the data checksum obtained from the header.</returns>
/// <exception cref="System.IO.IOException"/>
public static DataChecksum ReadDataChecksum(DataInputStream metaIn, object name)
{
// read and handle the common header here. For now just a version
Org.Apache.Hadoop.Hdfs.Server.Datanode.BlockMetadataHeader header = ReadHeader(metaIn
);
if (header.GetVersion() != Version)
{
Log.Warn("Unexpected meta-file version for " + name + ": version in file is " + header
.GetVersion() + " but expected version is " + Version);
}
return(header.GetChecksum());
}
public static void WriteHeader(DataOutputStream @out, Org.Apache.Hadoop.Hdfs.Server.Datanode.BlockMetadataHeader
header)
{
@out.WriteShort(header.GetVersion());
header.GetChecksum().WriteHeader(@out);
}
