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From "haruhiko nishi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (IO-218) Introduce new filter input stream with replacement facilities
Date Thu, 10 Sep 2009 06:34:57 GMT

    [ https://issues.apache.org/jira/browse/IO-218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12753458#action_12753458
] 

haruhiko nishi commented on IO-218:
-----------------------------------

I appreciate your comment.

About the exception the "test.html" is http://www.yahoo.com is top page copied into a file
named test.html.
It happened intermittently, does not seem to happen always.

OOPs the Exception has some package name shown....

The reason we need to use such InputStream is that we need to do search/replace on entire
page of web sites. 


> Introduce new filter input stream with replacement facilities
> -------------------------------------------------------------
>
>                 Key: IO-218
>                 URL: https://issues.apache.org/jira/browse/IO-218
>             Project: Commons IO
>          Issue Type: Improvement
>          Components: Filters
>    Affects Versions: 1.4
>         Environment: all environments
>            Reporter: Denis Zhdanov
>             Fix For: 1.4, 2.0
>
>         Attachments: ReplaceFilterInputStream.java, ReplaceFilterInputStreamTest.java
>
>   Original Estimate: 120h
>  Remaining Estimate: 120h
>
> It seems convenient to have a FilterInputStream that allows to apply predefined repalcement
rules against the read data. 
> For example we may want to configure the following replacements:
> {noformat}
> {1, } -> {7, 8}
> {1} -> {9}
> {3, 2} -> {}
> {noformat}
> and apply them to the input like
> {noformat}
> {4, 3, 2, 1, 2, 1, 3}
> {noformat}
> in order to get a result like
> {noformat}
> {4, 7, 8, 9, 3}
> {noformat}
> I created the class that allows to do that and attached it to this ticket. Unit test
class at junit4 format is attached as well.
> So, the task is to review the provided classes, consider if it's worth to add them to
commons-io distribution and perform the inclusion in the case of possible result.

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