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https://issues.apache.org/jira/browse/HADOOP-8135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221334#comment-13221334
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Todd Lipcon commented on HADOOP-8135:
-------------------------------------
{code}
+ * @return - the number of bytes available to read from buf
{code}
style nit: no '-' here
- maybe worth noting in the javadoc that many FS implementations may throw
UnsupportedOperationException, and add that to the javadoc as well
> Add ByteBufferReadable interface to FSDataInputStream
> -----------------------------------------------------
>
> Key: HADOOP-8135
> URL: https://issues.apache.org/jira/browse/HADOOP-8135
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs
> Reporter: Henry Robinson
> Assignee: Henry Robinson
> Attachments: HADOOP-8135.patch
>
>
> To prepare for HDFS-2834, it's useful to add an interface to
> FSDataInputStream (and others inside hdfs) that adds a read(ByteBuffer...)
> method as follows:
> {code}
> /**
> * Reads up to buf.remaining() bytes into buf. Callers should use
> * buf.limit(..) to control the size of the desired read.
> *
> * After the call, buf.position() should be unchanged, and therefore any
> data
> * can be immediately read from buf.
> *
> * @param buf
> * @return - the number of bytes available to read from buf
> * @throws IOException
> */
> public int read(ByteBuffer buf) throws IOException;
> {code}
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