Hi,
On Mar 19, 2014 6:31 AM, "Martin Eppel (meppel)" <[email protected]> wrote:
>
> Hi Nirmal,
>
>
>
> Thanks - this was helpful,
>
> actually the ServiceCreatedMessageProcessor.process method does seem to
set the properties when it creates the Service class, not sure if it was
on purpose or a bug.
>
We are using the chain of responsibility pattern and *MessageProcessors are
responsible for make some sense out of the events.
> Another thing I noticed is that after unsubscribing and undeploying a
cartridge the complete topology event still shows the unsubscribed /
undeployed cartridges ( although not the cli tool / list-cartridges), even
after restarting all stratos processes, seems like the db still references
it ?
>
That shouldn't be the case. Can you verify again and post the logs please?
>
>
> Thanks
>
>
>
> Martin
>
>
>
> ServiceCreatedMessageProcessor
>
>
>
> public boolean process(String type, String message, Object object) {
>
> ...
>
> Service service = new Service(event.getServiceName(),
event.getServiceType());
>
> service.addPorts(event.getPorts());
>
> topology.addService(service);
>
> if (log.isInfoEnabled()) {
>
> log.info(String.format("Service created: [service] %s",
event.getServiceName()));
>
> }
>
> notifyEventListeners(event);
>
> return true;
>
> ...
>
> }
>
>
>
> From: Nirmal Fernando [mailto:[email protected]]
> Sent: Monday, March 17, 2014 9:10 PM
> To: [email protected]
> Subject: Re: Question: Setting a property on a service instance (adding a
property to a cartridge)
>
>
>
> Hi Martin,
>
>
>
> On Mon, Mar 17, 2014 at 7:30 PM, Martin Eppel (meppel) <[email protected]>
wrote:
>
> Hi,
>
> I am experimenting with some stratos code to add a property to a
cartridge (or service) which I can later retrieve from a service instance.
>>
>>
>> Service.java (in org.apache.stratos.messaging.domain.topology) has
getter/setter for properties but I have a hard time to figure out the flow
/ code where properties are actually retrieved from the cartridge
definition (json) and set at the service instance (e.g. when subscribing to
a cartridge).
>>
>> The idea is to add a new property to a cartridge json definition (see
example below), assign it to a service instance and retrieve it in the
context of autoscaler rules. Is there a better way to define properties at
the service level ?
>
>
>
> Cartridge's properties should be available under
org.apache.stratos.messaging.domain.topology.Service's properties. If not
it's a bug :-)
>>
>>
>> Also, another question is: I can see in the code that there is
ServiceCreatedEvent which I would assume would be generated and handled
when subscribing a cartridge (= service ?) but it seems that no such event
is being processed ? (- however I do see the ClusterCreatedEvent being
created and processed). When is ServiceCreatedEvent generated ?
>
>
>
> ServiceCreatedEvent generated when you deploy a new Cartridge.
>
>
org.apache.stratos.messaging.event.topology.ServiceCreatedEvent.ServiceCreatedEvent(String,
ServiceType)
>
|_org.apache.stratos.cloud.controller.topology.TopologyEventPublisher.sendServiceCreateEvent(List<Cartridge>)
>
|_org.apache.stratos.cloud.controller.topology.TopologyBuilder.handleServiceCreated(List<Cartridge>)
>
|_org.apache.stratos.cloud.controller.impl.CloudControllerServiceImpl.deployCartridgeDefinition(CartridgeConfig)
>>
>>
>> Any pointers are highly appreciated
>>
>> Thanks
>>
>> Martin
>>
>>
>> ....
>> "property": [
>> {
>> "name": "dependencies",
>> "value": "service_name"
>> }
>> ...
>> ]
>
>
>
>
> --
>
> Best Regards,
> Nirmal
>
> Nirmal Fernando.
> PPMC Member & Committer of Apache Stratos,
> Senior Software Engineer, WSO2 Inc.
>
>
>
> Blog: http://nirmalfdo.blogspot.com/
