[jira] [Created] (FLUME-2753) Error when specifying empty replace string in Search and Replace Interceptor

[Johny Rufus (JIRA)]

Johny Rufus created FLUME-2753:
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             Summary: Error when specifying empty replace string in Search and 
Replace Interceptor
                 Key: FLUME-2753
                 URL: https://issues.apache.org/jira/browse/FLUME-2753
             Project: Flume
          Issue Type: Bug
            Reporter: Johny Rufus
            Assignee: Johny Rufus


The user guide specifies that the following configuration

a1.sources.avroSrc.interceptors.search-replace.replaceString =

will replace the search pattern with an empty string, but the following error 
is observed and there is no way to specify an empty replace string

java.lang.NullPointerException: Must supply a replacement string replaceString 
(empty is ok)
        at 
com.google.common.base.Preconditions.checkNotNull(Preconditions.java:204)
        at 
org.apache.flume.interceptor.SearchAndReplaceInterceptor$Builder.configure(SearchAndReplaceInterceptor.java:108)
        at 
org.apache.flume.channel.ChannelProcessor.configureInterceptors(ChannelProcessor.java:110)

We need to modify the SearchAndReplaceInterceptor to accept null values for 
replacement string and use empty string in that case



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