Corona management simple object

Enabling a Java class for management is a relatively easy process. Consider the following class, which contains a property prop and an operation doOperation(), which comprise the management interface for the class SimpleJavaObject.

package org.eclipse.corona.wsdm.example;


import org.osgi.framework.ServiceReference;
import org.osgi.service.component.ComponentContext;
import org.eclipse.corona.management.common.ContributionManager;

public class SimpleJavaObject {

	private String prop;

	public void doOperation() {
		System.out.println("invoked operation");
	}

	public String getProp() {
		return "Property";
	}
	
	ContributionManager manager;
	
	//Declarative Services methods
	protected void activate(ComponentContext ctx)
	{
		ServiceReference ref = ctx.getBundleContext().getServiceReference(ContributionManager.class.getName());
		manager = (ContributionManager)ctx.getBundleContext().getService(ref);

		manager.manage(this);
	}
	
	protected void deactivate(ComponentContext ctxt)
	{
		manager.remove(this);
	}
	

	//Other non-management oprations and properties

}

Instances of the class can be made manageable by adding the following annotations:

package org.eclipse.corona.wsdm.example;


import org.osgi.framework.ServiceReference;
import org.osgi.service.component.ComponentContext;
import org.eclipse.corona.management.common.ContributionManager;

import org.eclipse.corona.management.annotations.ManagedOperation;
import org.eclipse.corona.management.annotations.ManagedProperty;
import org.eclipse.corona.management.annotations.ManagedResource;


@ManagedResource(namespace="http://org.eclipse.corona.wsdm.example")
public class SimpleJavaObject {

	@ManagedProperty
	private String prop;

	@ManagedOperation
	public void doOperation() {
		System.out.println("invoked operation");
	}

	public String getProp() {
		return "Property";
	}
	
	ContributionManager manager;
	
	//Declarative Services methods
	protected void activate(ComponentContext ctx)
	{
		ServiceReference ref = ctx.getBundleContext().getServiceReference(ContributionManager.class.getName());
		manager = (ContributionManager)ctx.getBundleContext().getService(ref);

		manager.manage(this);
	}
	
	protected void deactivate(ComponentContext ctxt)
	{
		manager.remove(this);
	}
	

	//Other non-management oprations and properties

}

Instances of the class are then registered with the Management Runtime using the ContributionManager<Link to Obtaining the Management Enabling environment> as follows:

	SimpleJavaObject objInstance = new SimpleJavaObject();
	manager.manage(objInstance );

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