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From ├ľnder Sezgin (JIRA) <j...@apache.org>
Subject [jira] [Closed] (CAMEL-11754) Apache Camel FTP getting Cannot retrieve file: RemoteFile error
Date Wed, 13 Sep 2017 06:49:00 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-11754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

├ľnder Sezgin closed CAMEL-11754.
--------------------------------
    Resolution: Cannot Reproduce

> Apache Camel FTP getting Cannot retrieve file: RemoteFile error
> ---------------------------------------------------------------
>
>                 Key: CAMEL-11754
>                 URL: https://issues.apache.org/jira/browse/CAMEL-11754
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-ftp
>    Affects Versions: 2.19.0
>         Environment: Windows 10 x64
> jdk1.8.0_131
> Camel 2.19.0
>            Reporter: dheitzer
>
> I'm receiving an error from the FTP Component when its processing files in Camel 2.19.0.
> I'm trying to retrieve files using the Camel FTP component (Camel 2.19.0):
> from("ftp://my.host.com:21/my/relative/directory?download=true&stepwise=false&delete=false")
> {code:java}
> org.apache.camel.component.file.GenericFileOperationFailedException: Cannot retrieve
file: RemoteFile[my/relative/directory/file1.txt] from: ftp://my.host.com:21/my/relative/directory?delete=false&download=true&stepwise=false
>     at org.apache.camel.component.file.GenericFileConsumer.processExchange(GenericFileConsumer.java:427)
>     at org.apache.camel.component.file.remote.RemoteFileConsumer.processExchange(RemoteFileConsumer.java:137)
>     at org.apache.camel.component.file.GenericFileConsumer.processBatch(GenericFileConsumer.java:218)
>     at org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:182)
>     at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:174)
>     at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:101)
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>     at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
>     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
>     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>     at java.lang.Thread.run(Thread.java:748)
> {code}
> From the TRACE logs, I can see that Camel is listing the files in the directory correctly:
> {code:java}
> [TRACE] 2017-09-05 11:40:49,438 org.apache.camel.component.file.remote.FtpConsumer -
Polling directory: my/relative/directory
> [TRACE] 2017-09-05 11:40:51,748 org.apache.camel.component.file.remote.FtpOperations
- listFiles(my/relative/directory)
> [TRACE] 2017-09-05 11:40:58,657 org.apache.camel.component.file.remote.FtpConsumer -
Found 3 in directory: my/relative/directory
> [TRACE] 2017-09-05 11:40:58,657 org.apache.camel.component.file.remote.FtpConsumer -
FtpFile[name=/absolute/path/to/directory/file1.txt, dir=false, file=true]
> [TRACE] 2017-09-05 11:40:58,657 org.apache.camel.component.file.remote.FtpConsumer -
FtpFile[name=/absolute/path/to/directory/file2.txt, dir=false, file=true]
> [TRACE] 2017-09-05 11:40:58,657 org.apache.camel.component.file.remote.FtpConsumer -
FtpFile[name=/absolute/path/to/directory/file3.txt, dir=false, file=true]
> {code}
> When Camel tries to process each file however, it appears to be prepending the relative
directory to the absolute directory and failing to find the resulting garbled path:
> {code:java}
> [TRACE] 2017-09-05 11:40:59,417 org.apache.camel.component.file.remote.FtpConsumer -
Processing file: RemoteFile[absolute/path/to/directory/file1.txt]
> [TRACE] 2017-09-05 11:40:59,418 org.apache.camel.component.file.remote.FtpConsumer -
Retrieving file: my/relative/directory//absolute/path/to/directory/file1.txt from: ftp://my.host.com:21/my/relative/directory?delete=false&download=true&stepwise=false
> [TRACE] 2017-09-05 11:40:59,418 org.apache.camel.component.file.remote.FtpOperations
- retrieveFile(my/relative/directory//absolute/path/to/directory/file1.txt)
> [TRACE] 2017-09-05 11:40:59,418 org.apache.camel.component.file.remote.FtpOperations
- Client retrieveFile: my/relative/directory//absolute/path/to/directory/file1.txt
> [WARN ] 2017-09-05 11:40:59,518 org.apache.camel.component.file.remote.FtpConsumer -
Error processing file RemoteFile[absolute/path/to/directory/file1.txt] due to Cannot retrieve
file: RemoteFile[absolute/path/to/directory/file1.txt] from: ftp://my.host.com:21/my/relative/directory?delete=false&download=true&stepwise=false
> {code}
> This path in the logs constructed by the FTPComponent is incorrect:
> {noformat}
> Retrieving file: my/relative/directory//absolute/path/to/directory/file1.txt
> {noformat}
> I debugged the Camel FTP consumer and it looks like
> [on line 238 is where the relative path is getting prepended to the absolute path|https://github.com/apache/camel/blob/camel-2.19.x/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/FtpConsumer.java#L238]
> Interestingly enough, [the SFTP component is doing the same thing|https://github.com/apache/camel/blob/camel-2.19.x/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/SftpConsumer.java#L208]
however it is working because 
> {code:java}
> RemoteFileOperations<ChannelSftp.LsEntry>
> {code}
>  does not set filename as an absolute path but 
> {code:java}
> RemoteFileOperations<FTPFile>
> {code}
>  does.
> Does anyone have any suggestions to work around this to get the FTP Conponent to consume
the files? or am I doing something incorrectly?
> I'm using Camel 2.19.0



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