Hi, all
I’m modifying FSDataInputStream for some project,
I would like to directly manipulate “in" object in my implementation
as in the constructor a DFSInputStream is passed, so I convert “in” from
InputStream to DFSInputStream with
import org.apache.hadoop.hdfs.DFSClient;
DFSClient.DFSInputStream dins = (DFSClient.DFSInputStream) in;
dins.somemethod(…)
when I compile my code with ant
it says that
[javac]
/Users/zhunan/codes/SDNBigData/hadoop-1.2.1/src/core/org/apache/hadoop/fs/FSDataInputStream.java:20:
error: package org.apache.hadoop.hdfs does not exist
[javac] import org.apache.hadoop.hdfs.DFSClient;
What does this mean?
it means that core is compiled before hdfs, so I cannot do this?
Thank you very much!
Best,
--
Nan Zhu
School of Computer Science,
McGill University
