Sftp polling until remote file available

[af6140]

Hi trying to figure out how to wait until remote sftp file is available with a timeout. Was thinking using inbound channel adapter with message gateway , but not sure how it can be achieved.

[oxcafedead]

Hi @af6140
Please take a look at https://docs.spring.io/spring-integration/reference/html/sftp.html#configuring-with-java-configuration

Specifically this bean definition:

    @Bean
    @InboundChannelAdapter(channel = "sftpChannel", poller = @Poller(fixedDelay = "5000"))
    public MessageSource<File> sftpMessageSource() {
        SftpInboundFileSynchronizingMessageSource source =
                new SftpInboundFileSynchronizingMessageSource(sftpInboundFileSynchronizer());
        source.setLocalDirectory(new File("sftp-inbound"));
        source.setAutoCreateLocalDirectory(true);
        source.setLocalFilter(new AcceptOnceFileListFilter<File>());
        source.setMaxFetchSize(1);
        return source;
    }

It should do what you have described if I understand your request correctly.

[artembilan]

Moved this to discussion, since the question does not fall to bug neither feature request category.

Please, see if general EIP theory may help you somehow to determine what algorithm does fit to your requirements: https://www.enterpriseintegrationpatterns.com/patterns/messaging/.

In two works, @oxcafedead , has answered your question, but in addition I'd like to share also this part of the docs to make it clear what type of components is for this type of tasks.

[artembilan]

Also: please, consider to ask questions in the future on StackOverflow.
GH issues are only for bugs and feature requests.
GH discussions have limited community reachability.

Thanks