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From "Scott Forman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3627) OfflineImageViewer oiv Indented processor prints out the Java class name in the DELEGATION_KEY field
Date Fri, 22 Mar 2013 00:57:15 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609757#comment-13609757
] 

Scott Forman commented on HDFS-3627:
------------------------------------

Thanks for your comments, Daryn.
1. I believe that the changes in this patch enable OIV to convert from xml back to binary
image.  Our group needed this functionality, and so we made this change.  Without these changes,
the Delegation Keys in the binary image cannot be correctly composed. 
2. Latest patch modifies IndentedImageVisitor.java so that ImageElement.DELEGATION_KEY_EXPIRY_DATE
is human-readable.  I checked the outputs for the other visitors, and only the IndentedImageVisitor
and XmlImageVisitor output the Delegation Keys.
3. I believe the OEV does decode the delegation key, but it prints out the encoded key as
a hex string.  So I changed the OIV to also print out the encoded key as a hex string.

I agree that it would be nice if the xml encode/decode code was common between OIV and OEV,
but it would be a big change now.  It is also surprising that the OEV has a binary processor
that allows the XML output to be converted to binary, but that the OIV does not.  We needed
this functionality and hope to contribute it back soon.
                
> OfflineImageViewer oiv Indented processor prints out the Java class name in the DELEGATION_KEY
field
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3627
>                 URL: https://issues.apache.org/jira/browse/HDFS-3627
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.23.0
>            Reporter: Ravi Prakash
>            Priority: Minor
>         Attachments: HDFS-3627.patch, HDFS-3627.patch, HDFS-3627.patch, HDFS-3627.patch,
HDFS-3627.patch
>
>
> Instead of the contents of the delegation key this is printed out
> DELEGATION_KEY = org.apache.hadoop.security.token.delegation.DelegationKey@1e2ca7
>     DELEGATION_KEY = org.apache.hadoop.security.token.delegation.DelegationKey@105bd58
>     DELEGATION_KEY = org.apache.hadoop.security.token.delegation.DelegationKey@1d1e730
>     DELEGATION_KEY = org.apache.hadoop.security.token.delegation.DelegationKey@1a116c9
>     DELEGATION_KEY = org.apache.hadoop.security.token.delegation.DelegationKey@df1832

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