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From "Rick Curtis (JIRA)" <j...@apache.org>
Subject [jira] Closed: (OPENJPA-1953) Copying data from inputStream to OuputStream needs appropriate buffer size
Date Fri, 18 Mar 2011 20:30:29 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-1953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Curtis closed OPENJPA-1953.
--------------------------------

    Resolution: Won't Fix

I dug into this on this afternoon and I don't see a way that we can do something similar to
what was mentioned in the provided link. ZipStreamMetaDataIterator.getContent() is used to
read the entire contents of a file which we don't know the length of. On top of that, I don't
see this being an area where a large amount of work is driving through. We might be able to
optimize this path, but at very little benefit. I'm going to close this JIRA as will no fix,
but feel free to reopen if you disagree.

Thanks,
Rick

> Copying data from inputStream to OuputStream needs appropriate buffer size
> --------------------------------------------------------------------------
>
>                 Key: OPENJPA-1953
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1953
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: lib
>    Affects Versions: 2.1.0
>            Reporter: Xiaoming Shi
>            Assignee: Rick Curtis
>             Fix For: 2.2.0
>
>
> In the file:
> ./apache-openjpa-2.1.0-source/openjpa-lib/src/main/java/org/apache/openjpa/lib/meta/ZipStreamMetaDataIterator.java
   line : 119
> The buffer size is fixed as 1024 bytes. With the size of the data varies, the performance
can be damaged a lot. 
> We need an appropriate buffer size which depends on the size of the data to be copied.

> This is the same as the Appache Bug (https://issues.apache.org/bugzilla/show_bug.cgi?id=32546)

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