[CAMEL-15971] SimpleFileLanguage always null due to DummyExchange

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.23.2
• Fix Version/s: 3.7.1, 2.25.4, 3.8.0
• Component/s: came-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Kurt Stam
• Created: 18/Dec/20 11:25
• Updated: 20/Dec/20 16:19
• Resolved: 20/Dec/20 16:19

Description

I'm trying to use the File component to move all *.txt files from the 'source' to the 'target' directory.

        public void configure() throws Exception {
            from("file://source?fileName=%24%7Bfile%3Aonlyname.noext%7D.txt")
                .to("log://org.apache.camel.howto?showAll=true")
                .to("file://target");
        }

I'm configuring the fileName as ${file:onlyname.noext}.txt.

https://github.com/apache/camel/blob/camel-2.25.x/camel-core/src/main/java/org/apache/camel/language/simple/SimpleLanguage.java#L85

However, not any file names match ever because the ${file:onlyname.noext} is always null because it's trying to obtain the file name from the exchange which is completely empty.

It seems to me that you should not create a DummyExchange:
https://github.com/apache/camel/blob/camel-2.25.x/camel-core/src/main/java/org/apache/camel/component/file/GenericFileConsumer.java#L701

Please find a demo project attached.

Issue Links

• relates to: CAMEL-15979 camel-file - Add includeExt/excludeExt to make it easy to filter based on file extension