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https://issues.apache.org/jira/browse/CAMEL-5459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-5459.
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Resolution: Fixed
Thanks for the patch.
> Folder closed too early when working asynchronously
> ---------------------------------------------------
>
> Key: CAMEL-5459
> URL: https://issues.apache.org/jira/browse/CAMEL-5459
> Project: Camel
> Issue Type: Bug
> Components: camel-mail
> Affects Versions: 2.10.0
> Environment: IMAP connection to mailserver
> Reporter: Fabio Berchtold
> Assignee: Claus Ibsen
> Priority: Minor
> Labels: patch
> Fix For: 2.10.4, 2.11.0
>
> Attachments: camel-mail-closeFolder.patch
>
>
> When using a MailConsumer connected with IMAP to a mailserver and routing the
> messages to SEDA or any other asynchronous endpoint,
> it can cause a com.sun.mail.util.FolderClosedIOException or
> javax.mail.FolderClosedException to happen if you are trying to process the
> mails/messages attachments.
> This is because the IMAP folder gets closed at the end of each
> MailConsumer.poll()
> I propose to add a new MailConfiguration option "closeFolder", which can
> override this behaviour.
> Here's an example on how to reproduce the problem. (Scala code, sorry! But it
> should be self-explanatory)
> You need a couple of mails with attachments in your mailbox to test this.
> ~10 mails should be enough to cause the exceptions.
> import javax.mail.internet.MimeMultipart
> import org.apache.camel.impl.DefaultCamelContext
> import org.apache.camel.scala.dsl.builder.RouteBuilder
> import scala.io.Source
> object Main {
> def main(args: Array[String]): Unit = {
> val camelContext = new DefaultCamelContext
>
> val host = "imap.gmail.com"
> val username = "*****@gmail.com"
> val password = "*****"
>
> // this will cause com.sun.mail.util.FolderClosedIOException or
> javax.mail.FolderClosedException
> val endpoint =
> "imaps://"+host+"?password="+password+"&username="+username+"&folderName=INBOX&unseen=false&disconnect=false&mapMailMessage=true&connectionTimeout=60000"
>
> // with fix / new feature 'closeFolder' set to false
> //val endpoint =
> "imaps://"+host+"?password="+password+"&username="+username+"&folderName=INBOX&unseen=false&disconnect=false&mapMailMessage=true&connectionTimeout=60000&closeFolder=false"
>
> camelContext.addRoutes(
> new RouteBuilder {
> endpoint
> .to("seda:process")
>
> from("seda:process?concurrentConsumers=5") ==> {
> process { ex =>
> val att =
> ex.getIn.getBody.asInstanceOf[MimeMultipart].getBodyPart(1)
> println("Attachment Name:" + att.getFileName)
> println("Attachment Content:" + att.getDataHandler.getContent)
> println("Attachment Content:" +
> Source.fromInputStream(att.getDataHandler.getInputStream).mkString)
> Thread.sleep(2500) // simulate some work being done here with the
> attachment, takes time..
> }
> }
> }
> )
> camelContext.start()
> Thread.sleep(45 * 1000)
> camelContext.stop()
> }
> }
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