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https://issues.apache.org/jira/browse/IO-71?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting updated IO-71:
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Attachment: ReverseFilterOutputStream.patch
See the attached patch (ReverseFilterInputStream.patch) for a simple draft (not
thoroughly tested or documented) of a class that turns an OutputStream filter
into an InputStream filter without the need for an extra thread or a pipe.
With the ReverseFilterInputStream class your example test case would become:
{code}
//starting data
InputStream original = new ByteArrayInputStream("hello
world".getBytes("us-ascii"));
// Compress
InputStream reversed = new ReverseFilterInputStream(original,
GZIPOutputStream.class);
// Uncompress
InputStream results = new GZIPInputStream(reversed);
//show results
StringWriter swresult = new StringWriter();
CopyUtils.copy(results,swresult);
assertEquals("hello world", swresult.toString());
{code}
> [io] PipedUtils
> ---------------
>
> Key: IO-71
> URL: https://issues.apache.org/jira/browse/IO-71
> Project: Commons IO
> Issue Type: Improvement
> Components: Utilities
> Environment: Operating System: All
> Platform: All
> Reporter: David Smiley
> Priority: Minor
> Fix For: 2.x
>
> Attachments: PipedUtils.zip, ReverseFilterOutputStream.patch
>
>
> I developed some nifty code that takes an OutputStream and sort of reverses
> it as if it were an
> InputStream. Error passing and handling close is dealt with. It needs
> another thread to do the work
> which runs in parallel. It uses Piped streams. I created this because I
> had to conform
> GZIPOutputStream to my framework which demanded an InputStream.
> See URL to source.
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