[jira] [Resolved] (CAMEL-14533) camel-ftp: fileExist=Append and tempPrefix options do not work together

["Claus Ibsen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-14533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen resolved CAMEL-14533.
---------------------------------
    Fix Version/s: 2.25.2
       Resolution: Fixed

> camel-ftp: fileExist=Append and tempPrefix options do not work together
> -----------------------------------------------------------------------
>
>                 Key: CAMEL-14533
>                 URL: https://issues.apache.org/jira/browse/CAMEL-14533
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-ftp
>    Affects Versions: 2.22.2, 2.24.2, 3.0.1
>            Reporter: Claus Skou Nielsen
>            Assignee: Claus Ibsen
>            Priority: Minor
>             Fix For: 3.5.0, 3.4.3, 2.25.2
>
>
> If you both have fileExist=Append and tempPrefix=<something> options on a sftp to-endpoint, the de facto behaviour of the route is as if it was configured with fileExist=Override.
> When you think about how fileExist and tempPrefix works, this bug actually makes sense. The temporary prefix makes it so that a "new" file is written every time, and therefore fileExist=Append is just working like it does when there isn't an existing file to append to.
> I think there are a couple of possible solutions to this problem:
>  * Document this behaviour in the camel documentation, and let the user be responsible for knowing that these two options are incompatible
>  * Throw an exception when building the route if these two mutually exclusive options are used on the same route
>  * Make fileExist=Append and tempPrefix=<something> be compatible, by making the 'mv' operation after writing the temporary file merge the two files, instead of replacing it
>  * Some other brilliant solution that the camel maintainers will see, that has escaped me
> *Recreate the issue*
> Define and start up the following route:
> {code:java}
> from("timer://loltimer?delay=5000&period=5000")
>  .setHeader("CamelFileName", constant("foo.txt"))
>  .setBody(constant("Davs"))
>  .to("sftp://mysftpserver:22/fileappendtest?username=myusername&password=mypassword&fileExist=Append&tempPrefix=.uploading");{code}
> Then you can observe the folder on the sftp-server, and see that the file size never increases, but the files Last-Modified timestamp gets renewed every five seconds.
> If you remove the "tempPrefix=.uploading" option from the sftp uri it works like it should, and the file size increases every 5 seconds.



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