If no action is being taken, the valid answer is to return null. This will
make the listener logic to try the next listener

On Thu, Feb 9, 2017 at 6:00 AM, koushik-das <g...@git.apache.org> wrote:

> Github user koushik-das commented on a diff in the pull request:
>
>     https://github.com/apache/cloudstack/pull/1906#discussion_r100281158
>
>     --- Diff: plugins/network-elements/opendaylight/src/main/java/
> org/apache/cloudstack/network/opendaylight/OpendaylightElement.java ---
>     @@ -156,7 +153,7 @@ public HostVO createHostVOForDirectConnectAgent(HostVO
> host, StartupCommand[] st
>
>          @Override
>          public DeleteHostAnswer deleteHost(HostVO host, boolean isForced,
> boolean isForceDeleteStorage) throws UnableDeleteHostException {
>     -        return new DeleteHostAnswer(true);
>     +        return null;
>     --- End diff --
>
>     @syed I am not sure if this is used or maintained by anyone. But the
> right fix may be to use some checks to return a valid answer or null. How
> is this handled in some of the other network elements?
>
>
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