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https://issues.apache.org/jira/browse/FELIX-1851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guillaume Nodet resolved FELIX-1851.
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Resolution: Fixed
Fix Version/s: fileinstall-2.0.6
Assignee: Guillaume Nodet
Sending fileinstall/pom.xml
Sending
fileinstall/src/main/java/org/apache/felix/fileinstall/internal/DirectoryWatcher.java
Transmitting file data ..
Committed revision 891210.
> FileInstall watched bundles are restarted twice upon update
> -----------------------------------------------------------
>
> Key: FELIX-1851
> URL: https://issues.apache.org/jira/browse/FELIX-1851
> Project: Felix
> Issue Type: Bug
> Components: File Install
> Affects Versions: fileinstall-1.2.0
> Environment: generic
> Reporter: Sahoo
> Assignee: Guillaume Nodet
> Fix For: fileinstall-2.0.6
>
>
> I am observing that bundles watched by fileinstall (1.2.0) are getting
> stopped & subsequently started twice when they are updated. First time, they
> are stopped and started by a call to update() and then because of a call to
> refreshPackages(). The scenario where this is happening is given below:
> bundle A exports package p and is tracking service of type p.Foo.
> bundle B imports a package p from A. It exports a service object with the
> service interface p.Foo.
> I am updating bundle A and it is getting stopped and started twice.
> The explanation given to me (thanks to Richard) is that:
> "The update operation is defined as first stopping a bundle and restarting it
> after the update. This is once.
> Since an updated bundle is not really updated until it is refreshed, when you
> refresh, bundle A's update is finalized by being refreshed, which causes it
> to stop and restart. This is twice.
> ...
> If bundle A was not being used, Felix would optimize this and do the refresh
> as part of the update, so it would only happen once.
> If File Install always refreshes after an update, it would be better to
> change it to first stop all bundles being updated, then update all bundles,
> then refresh, then restart all updated bundles. This way they would only
> stop/restart once."
> I am not sure if the behavior has changed in newer version of fileinstall or
> not. If not, this will be a good change to make.
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