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From "guodongdong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10440) HarFsInputStream of HarFileSystem, when reading data, computing the position has bug
Date Wed, 26 Mar 2014 11:22:17 GMT
guodongdong created HADOOP-10440:
------------------------------------

             Summary: HarFsInputStream of HarFileSystem, when reading data, computing the
position has bug
                 Key: HADOOP-10440
                 URL: https://issues.apache.org/jira/browse/HADOOP-10440
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.3.0
         Environment: 

            Reporter: guodongdong


In the HarFsInputStream of HarFileSystem, when reading data by interface "int read(byte[]
b)", "int read(byte[] b, int offset, int len)" wille be called and position wille be update,
so position  need not be update in interface "int read(byte[] b)"

      public synchronized int read(byte[] b) throws IOException {
        int ret = read(b, 0, b.length);
        if (ret != -1) {
          position += ret;
        }
        return ret;
      }

      /**
       *
       */
      public synchronized int read(byte[] b, int offset, int len)
        throws IOException {
        int newlen = len;
        int ret = -1;
        if (position + len > end) {
          newlen = (int) (end - position);
        }
        // end case
        if (newlen == 0)
          return ret;
        ret = underLyingStream.read(b, offset, newlen);
        position += ret;
        return ret;
      }



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