/** {@inheritDoc} */
@Override
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
type = HadoopTaskType.fromOrdinal(in.readByte());
jobId = (HadoopJobId) in.readObject();
taskNum = in.readInt();
attempt = in.readInt();
inputSplit = (HadoopInputSplit) in.readObject();
if (in.readBoolean()) {
mapperIdxSet = true;
mapperIdx = in.readInt();
} else mapperIdxSet = false;
}
