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[equinox-dev] Declarative Services within RCP Applications

Ben,

Thanx for your input. I do have the org.eclipse.equinox.ds in config.ini file. This is my config.ini file. All the custom bundles start at level 5. In the Run Configuration->Configuration tab, "Use an existing config.ini as a template" is checked in and "Use default location" is checked in. Still the bundles are not starting when launched in eclipse application.

#Configuration File
#Thu Feb 05 13:57:13 PST 2009
osgi.bundles=org.eclipse.osgi.services_3.1.200.v20071203.jar@start, \
		org.eclipse.equinox.ds_1.0.0.v20080427-0830.jar@2:start, \
		org.eclipse.core.runtime.compatibility.registry_3.2.200.v20080610, \
		org.eclipse.ui.workbench_3.4.1.M20080827-0800a.jar@start, \
		org.eclipse.equinox.transforms.hook_1.0.0.v20080610.jar, \
		org.eclipse.core.jobs_3.4.0.v20080512.jar@start, \
		org.eclipse.swt_3.4.1.v3449c.jar@start, \
		org.eclipse.core.databinding_1.1.1.M20080827-0800b.jar@start, \
		org.eclipse.core.contenttype_3.3.0.v20080604-1400.jar@start, \
		com.ibm.icu_3.8.1.v20080530.jar@start, \
		org.eclipse.core.commands_3.4.0.I20080509-2000.jar@start, \
		org.eclipse.core.runtime_3.4.0.v20080512.jar@start, \
		org.eclipse.equinox.registry_3.4.0.v20080516-0950.jar@start, \
		org.eclipse.equinox.common_3.4.0.v20080421-2006.jar@start, \
		org.eclipse.core.expressions_3.4.0.v20080603-2000.jar@start, \
		org.eclipse.ui_3.4.1.M20080910-0800.jar@start, \
		org.eclipse.equinox.util_1.0.0.v20080414.jar@start, \
		org.eclipse.core.runtime.compatibility.auth_3.2.100.v20070502.jar@start, \
		org.eclipse.equinox.preferences_3.2.201.R34x_v20080709.jar@start, \
		org.eclipse.swt.gtk.linux.x86_3.4.1.v3449c.jar, \
		org.eclipse.jface.databinding_1.2.1.M20080827-0800a.jar@start, \
		org.eclipse.jface_3.4.1.M20080827-2000.jar@start, \
		org.eclipse.equinox.app_1.1.0.v20080421-2006.jar@start, \
		org.eclipse.help_3.3.101.v20080702_34x.jar@start, \
		javax.servlet_2.4.0.v200806031604.jar@start
		MyHello@5:start, \
		JMSImporter@5:start, \
		com.etrade.common3@5:start, \
		com.etrade.tops.jms@5:start, \
osgi.bundles.defaultStartLevel=4
osgi.install.area=file\:/etrade/home/pmitra/eclipse
osgi.framework=file\:/etrade/home/pmitra/eclipse/plugins/org.eclipse.osgi_3.4.2.R34x_v20080826-1230.jar
osgi.configuration.cascaded=false 

Regards
Priyanka

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Today's Topics:

   1. Declarative Services within RCP Applications (Mitra, Priyanka)
   2. Re: Declarative Services within RCP Applications (Benjamin CAB?)


----------------------------------------------------------------------

Message: 1
Date: Wed, 4 Feb 2009 18:48:04 -0500
From: "Mitra, Priyanka" <priyanka.mitra@xxxxxxxxxx>
Subject: [equinox-dev] Declarative Services within RCP Applications
To: <equinox-dev@xxxxxxxxxxx>
Message-ID:
	<6B657591B767A94AA6170DEF5D8B5BB7016EFDFB@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"

Hello

I am not very clear how to use declaratively declarative services from RCP Application. I have a main container that other plugins that contribute to UI. In one of the plugin, I have a view that has to subscribe to a JMS service, the implementation of which is declared as a service in another bundle.
I am able to run this using "Run As -> OSGI Framework". The subscription takes place without any problems. But when run as Eclipse Application, osgi console comes up and then immediately shuts down and then my RCP Application comes up. The subscription to JMS service fails as there is no reference available. In fact it almost seems like the DS bundle for JMS is not loaded or installed at the runtime of RCP App. Am I missing something in the run configuration? Why the service bundle is not getting installed when RCP app comes up?

This is my service bundle: Subscription implementation is in JMSConnection.

<?xml version="1.0"?>
<component name="jmsService">
	<implementation class="com.....JMSConnection"/>
	<service>
		<provide interface="com......IMessageService"/>
	</service>
</component>

This is the call from consumer bundle. This bundle also contributes to UI..

<?xml version="1.0"?>
<component name="jmsconn">
	<implementation
class="tops.order.trade.mgmt.ui.views.AlertsView"/>
	<reference name="jmsService"
	interface="com......IMessageService"
	bind="setService"
	unbind="unsetService"
	cardinality="0..1"
	policy="dynamic"/>
</component>

AlertsView.java

public class AlertsView extends ViewPart implements IMessageHandler {

    	private IMessageService jmsService = null;

	public void createPartControl(Composite parent) {
		.............. // some UI code

		openJMSConnection(topic, mapper, handler);
	}
    	/* (non-Javadoc)
    	 */
    	public void setService(IMessageService jmsService) {
        	System.out.println("Setting up JMS Service Instance");
            this.jmsService = jmsService;
            openJMSConnection("", new AlertsMessageMapper(), this);
        }
        /* (non-Javadoc)
    	 */
        public void unsetService(IMessageService jmsService) {
            this.jmsService = null;
        }

    	public void openJMSConnection (String topic, IMessageMapper mapper, IMessageHandler handler) 
    	{
            if (this.jmsService != null) {
            	System.out.println("Service not null");
            	jmsService.subscribeService(topic, mapper, handler);
            }
            else
            	System.out.println("Service is null");
    	}

Can anyone suggest what is the best way to mix the use of extensions and services at the same time within RCP Application. I appreciate your attention on this matter.

Regards..
Priyanka

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Message: 2
Date: Thu, 05 Feb 2009 14:07:55 +0100
From: Benjamin CAB? <benjamin.cabe@xxxxxxxxxxxxxxxx>
Subject: Re: [equinox-dev] Declarative Services within RCP
	Applications
To: Equinox development mailing list <equinox-dev@xxxxxxxxxxx>
Message-ID: <498AE4AB.6010403@xxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"

Mitra,

The org.eclipse.equinox.ds bundle must always be started; hence you need to either use a custom config.ini which should look like
    osgi.bundles=org.eclipse.equinox.ds@2:start
or use Eclipse 3.5 M5 to be able to set the DS bundle to autostart using the new Eclipse launch configuration dialog...

On a side note, adding -Dequinox.ds.print=true to the VM args of your launch configuration may be useful to have traces about components activation, deactivation, etc.

Cheers,
Ben
Anyware Technologies <http://www.anyware-tech.com> 	
*Benjamin Cabé*
Expert Eclipse
benjamin.cabe@xxxxxxxxxxxxxxxx <mailto:benjamin.cabe@xxxxxxxxxxxxxxxx>
*http://blog.benjamin-cabe.com*
Tel : +33(0)5 61 00 06 41
Fax : +33(0)5 61 00 51 46
  	
*Nouvelle adresse
*

------------------------------------------------------------------------
*Anyware Technologies
* Lake Park
ZAC de l'Hers - Allée du Lac
BP 87216
31672 Labège Cedex
France
www.anyware-tech.com <http://www.anyware-tech.com>



Mitra, Priyanka a écrit :
>
> Hello
>
> I am not very clear how to use declaratively declarative services from 
> RCP Application. I have a main container that other plugins that 
> contribute to UI. In one of the plugin, I have a view that has to 
> subscribe to a JMS service, the implementation of which is declared as 
> a service in another bundle.
>
> I am able to run this using "Run As -> OSGI Framework". The 
> subscription takes place without any problems. But when run as Eclipse 
> Application, osgi console comes up and then immediately shuts down and 
> then my RCP Application comes up. The subscription to JMS service 
> fails as there is no reference available. In fact it almost seems like 
> the DS bundle for JMS is not loaded or installed at the runtime of RCP 
> App. Am I missing something in the run configuration? Why the service 
> bundle is not getting installed when RCP app comes up?
>
> This is my service bundle: Subscription implementation is in 
> JMSConnection.
>
> <?xml version="1.0"?>
> <component name="jmsService">
>         <implementation class="com.....JMSConnection"/>
>         <service>
>                 <provide interface="com......IMessageService"/>
>         </service>
> </component>
>
> This is the call from consumer bundle. This bundle also contributes to 
> UI..
>
> <?xml version="1.0"?>
> <component name="jmsconn">
>         <implementation
> class="tops.order.trade.mgmt.ui.views.AlertsView"/>
>         <reference name="jmsService"
>         interface="com......IMessageService"
>         bind="setService"
>         unbind="unsetService"
>         cardinality="0..1"
>         policy="dynamic"/>
> </component>
>
> AlertsView.java
>
> public class AlertsView extends ViewPart implements IMessageHandler {
>
>         private IMessageService jmsService = null;
>
>         public void createPartControl(Composite parent) {
>                 .............. // some UI code
>
>                 openJMSConnection(topic, mapper, handler);
>         }
>         /* (non-Javadoc)
>          */
>         public void setService(IMessageService jmsService) {
>                 System.out.println("Setting up JMS Service Instance");
>             this.jmsService = jmsService;
>             openJMSConnection("", new AlertsMessageMapper(), this);
>         }
>         /* (non-Javadoc)
>          */
>         public void unsetService(IMessageService jmsService) {
>             this.jmsService = null;
>         }
>
>         public void openJMSConnection (String topic, IMessageMapper 
> mapper, IMessageHandler handler)
>         {
>             if (this.jmsService != null) {
>                 System.out.println("Service not null");
>                 jmsService.subscribeService(topic, mapper, handler);
>             }
>             else
>                 System.out.println("Service is null");
>         }
>
> Can anyone suggest what is the best way to mix the use of extensions 
> and services at the same time within RCP Application. I appreciate 
> your attention on this matter.
>
> Regards..
> Priyanka
>
> ----------------------------------------------------------------------
> --
>
> _______________________________________________
> equinox-dev mailing list
> equinox-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/equinox-dev
>   
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