[jira] [Work logged] (IO-651) Provide method to retrieve data from DeferredFileOutputStream as InputStream

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IO-651?focusedWorklogId=554813&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-554813 ]

ASF GitHub Bot logged work on IO-651:
-------------------------------------

                Author: ASF GitHub Bot
            Created on: 19/Feb/21 16:39
            Start Date: 19/Feb/21 16:39
    Worklog Time Spent: 10m 
      Work Description: jmark109 opened a new pull request #206:
URL: https://github.com/apache/commons-io/pull/206


   Add DeferredFileOutputStream.getInputStream() for efficient retrieval of OutputSteam data.
   
   Fixes IO-651.


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 554813)
    Remaining Estimate: 0h
            Time Spent: 10m

> Provide method to retrieve data from DeferredFileOutputStream as InputStream
> ----------------------------------------------------------------------------
>
>                 Key: IO-651
>                 URL: https://issues.apache.org/jira/browse/IO-651
>             Project: Commons IO
>          Issue Type: Improvement
>          Components: Streams/Writers
>    Affects Versions: 2.6
>            Reporter: John Mark
>            Priority: Major
>              Labels: easyfix, performance, pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> It would be very helpful to have to {{toInputStream()}} method on the {{DeferredFileOutputStream}} class. Besides for convenience, it would allow for improved efficiency since in the case of in-memory data the byte buffer would not need to be copied (as opposed to the current {{getData()}} method). 
> The implementation is pretty simple and can be something like the following (based on the current {{writeTo(OutputStream)}} method):
> {code:java}
> public InputStream toInputStream() throws IOException {
>     if (!closed) {
>         throw new IOException("Stream not closed");
>     }
>     if (isInMemory()) {
>         return memoryOutputStream.toInputStream();
>     } else {
>         return Files.newInputStream(outputFile.toPath());
>     }
> }
> {code}



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