> On 七月 29, 2016, 2:49 p.m., Attila Simon wrote:
> > flume-ng-sources/flume-taildir-source/src/main/java/org/apache/flume/source/taildir/TaildirMatcher.java,
> >  lines 268-288
> > <https://reviews.apache.org/r/50378/diff/4/?file=1457767#file1457767line268>
> >
> >     Usage of magic constants like '/', '\', "*?[{" most be avoided.

Thanks. I checked Glob.java in package sun.nio.fs,  code is as follows:
private static boolean isRegexMeta(char var0) {
    return ".^$+{[]|()".indexOf(var0) != -1;
  }

private static boolean isGlobMeta(char var0) {
    return "*?[{".indexOf(var0) != -1;
  }


> On 七月 29, 2016, 2:49 p.m., Attila Simon wrote:
> > flume-ng-sources/flume-taildir-source/src/main/java/org/apache/flume/source/taildir/TaildirMatcher.java,
> >  line 239
> > <https://reviews.apache.org/r/50378/diff/4/?file=1457767#file1457767line239>
> >
> >     Is this solution follow symlinks? If not then it would be a breaking 
> > change.

Sorry?I don't understand the meaning. Could you please explain it more clearly.


> On 七月 29, 2016, 2:49 p.m., Attila Simon wrote:
> > flume-ng-sources/flume-taildir-source/src/main/java/org/apache/flume/source/taildir/TaildirMatcher.java,
> >  lines 240-242
> > <https://reviews.apache.org/r/50378/diff/4/?file=1457767#file1457767line240>
> >
> >     performance downgrade due to the idempotent instantiations of matchers

I agree with you. But is there any good idea?


> On 七月 29, 2016, 2:49 p.m., Attila Simon wrote:
> > flume-ng-sources/flume-taildir-source/src/main/java/org/apache/flume/source/taildir/TaildirMatcher.java,
> >  line 274
> > <https://reviews.apache.org/r/50378/diff/4/?file=1457767#file1457767line274>
> >
> >     could you please explain why the second half was needed? (i >= 1 && 
> > path.charAt(i - 1) != '\')

'\' means the escape character. For example, path = 
"/dir/subdira/\*/subdirb/*/subdirc" , then trimPathBeforeFirstWildcard(path) 
returns "/dir/subdira/\*/subdirb" , not "/dir/subdira"


- qiao


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On 七月 29, 2016, 12:04 p.m., qiao wen wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/50378/
> -----------------------------------------------------------
> 
> (Updated 七月 29, 2016, 12:04 p.m.)
> 
> 
> Review request for Flume.
> 
> 
> Repository: flume-git
> 
> 
> Description
> -------
> 
> In our log management project, we wan't to track many log files like this:
> /app/dir1/log.*
> /app/dir2/log.*
> ...
> /app/dirn/log.*
> But TaildirSource can't support wildcards in filegroup directory name. The 
> following config is expected:
> a1.sources.r1.filegroups.fg = /app/*/log.*
> 
> 
> Diffs
> -----
> 
>   flume-ng-doc/sphinx/FlumeUserGuide.rst 3f08d8b 
>   
> flume-ng-sources/flume-taildir-source/src/main/java/org/apache/flume/source/taildir/TaildirMatcher.java
>  ad9f720 
>   
> flume-ng-sources/flume-taildir-source/src/test/java/org/apache/flume/source/taildir/TestTaildirMatcher.java
>  c341054 
>   
> flume-ng-sources/flume-taildir-source/src/test/java/org/apache/flume/source/taildir/TestTaildirSource.java
>  097ee0b 
> 
> Diff: https://reviews.apache.org/r/50378/diff/
> 
> 
> Testing
> -------
> 
> All tests in TestTaildirSource passed.
> 
> 
> Thanks,
> 
> qiao wen
> 
>

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