CODEWITHSUNDEEP
mulemule-studio
user1493140
user1493140

Reputation: 6186

Mule foreach : Splitter returned no results

I get a list of files on amazon S3 and iterate over the list of files and process one file at a time. The corresponding flow is as follows --

<flow name="process-from-s3" doc:name="process-from-s3"
    processingStrategy="synchronous">
    <poll doc:name="Poll" frequency="${s3-poll-interval}">
        <s3:list-objects config-ref="Amazon_S3" doc:name="Get List of files"
            accessKey="${s3-access-key}" secretKey="${s3-secret-key}"
            bucketName="${s3-read-bucket}" />
    </poll>
    <choice doc:name="Choice">
            <foreach doc:name="For Each">
                <set-session-variable variableName="s3_file_name" value="#[payload.getKey()]" doc:name="Session Variable"/>
                <logger message="From bucket ( ${s3-read-bucket} ), received the file #[s3_file_name]" level="INFO" doc:name="Logger"/>
                <flow-ref name="process_s3_file" doc:name="Flow Reference"/>
            </foreach>
    </choice>
</flow>

The flow works well, however it keeps on spitting the following log statements if there are no files found. 

[03-06 21:52:05] WARN  Foreach$CollectionMapSplitter   
[[myapp].connector.polling.mule.default.receiver.01]: Splitter returned no results. 
If this is not expected, please check your split expression

How can I avoid this annoying log message. Should I wrap the foreach within a choice router that processes the foreach if there is atleast one element in the list. Any suggestions are welcome.

Upvotes: 3

Views: 4154

Answers (1)

Anton Kupias
Anton Kupias

Reputation: 4015

I would rather set the log level for org.mule.routing.Foreach$CollectionMapSplitter to ERROR than configure any additional logic for this warning. See Mule docs for configuring logger/log4j if you need to.

Upvotes: 2

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