[jira] [Created] (FLUME-1988) Add Support for Additional Deserializers for SpoolingDirectorySource

["Israel Ekpo (JIRA)" <ji...@apache.org>]

Israel Ekpo created FLUME-1988:
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             Summary: Add Support for Additional Deserializers for SpoolingDirectorySource
                 Key: FLUME-1988
                 URL: https://issues.apache.org/jira/browse/FLUME-1988
             Project: Flume
          Issue Type: New Feature
          Components: Docs, Sinks+Sources
    Affects Versions: v1.4.0
            Reporter: Israel Ekpo
            Assignee: Israel Ekpo
             Fix For: v1.4.0


There are certain use cases for SpoolingDirectorySource where the events in the log file are not delimited with newline characters.

Certain log files that contain stack traces, xml documents and pretty JSON strings seem to contain multiple new line characters within each event.

We can use alternative logic such as specific characters, strings or regular expressions to determine when the event is complete.

Hence I am proposing the following new deserializers based on org.apache.flume.serialization.LineDeserializer

# org.apache.flume.serialization.RegexDelimiterDeSerializer
Allows the user to specify a regular expression that is a delimiter for events within the log file

# org.apache.flume.serialization.RegexDelimiterDeSerializer
Allows the user to specify a comma separated character sequence that is a delimiter for events within the log file
The user will specify an integer for the ascii characters and we will use that as the delimter.
For example support for \r\n could be specified as 13,10
A list of codes is available at http://www.asciitable.com/

We will also need to update the user guide with examples on how to configure and specify a custom deserializer.

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