ExampleCapability.java

package org.opennaas.extensions.sampleresource.capability.example;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opennaas.core.resources.ActivatorException;
import org.opennaas.core.resources.action.IAction;
import org.opennaas.core.resources.action.IActionSet;
import org.opennaas.core.resources.capability.AbstractCapability;
import org.opennaas.core.resources.capability.CapabilityException;
import org.opennaas.core.resources.descriptor.CapabilityDescriptor;
import org.opennaas.core.resources.descriptor.ResourceDescriptorConstants;
import org.opennaas.extensions.queuemanager.IQueueManagerCapability;

/**
 * 
 * @author Elisabeth Rigol
 * 
 */
public class ExampleCapability extends AbstractCapability implements IExampleCapability {

	public static String	CAPABILITY_TYPE	= "example";

	Log						log				= LogFactory.getLog(ExampleCapability.class);

	private String			resourceId		= "";

	public ExampleCapability(CapabilityDescriptor descriptor, String resourceId) {

		super(descriptor);
		this.resourceId = resourceId;
		log.debug("Built new Example Capability");
	}

	@Override
	public void activate() throws CapabilityException {
		registerService(Activator.getContext(), CAPABILITY_TYPE, getResourceType(), getResourceName(), IExampleCapability.class.getName());
		super.activate();
	}

	@Override
	public void deactivate() throws CapabilityException {
		unregisterService();
		super.deactivate();
	}

	@Override
	public String getCapabilityName() {
		return CAPABILITY_TYPE;
	}

	@Override
	public IActionSet getActionSet() throws CapabilityException {

		String name = this.descriptor.getPropertyValue(ResourceDescriptorConstants.ACTION_NAME);
		String version = this.descriptor.getPropertyValue(ResourceDescriptorConstants.ACTION_VERSION);

		try {
			return Activator.getExampleActionSetService(name, version);
		} catch (ActivatorException e) {
			throw new CapabilityException(e);
		}
	}

	@Override
	public void queueAction(IAction action) throws CapabilityException {
		getQueueManager(resourceId).queueAction(action);
	}

	/**
	 * 
	 * @return QueuemanagerService this capability is associated to.
	 * @throws CapabilityException
	 *             if desired queueManagerService could not be retrieved.
	 */
	private IQueueManagerCapability getQueueManager(String resourceId) throws CapabilityException {
		try {
			return Activator.getQueueManagerService(resourceId);
		} catch (ActivatorException e) {
			throw new CapabilityException("Failed to get QueueManagerService for resource " + resourceId, e);
		}
	}

	/**
	 * @param the
	 *            user name
	 * @return the greeting message
	 * 
	 */
	@Override
	public String sayHello(String userName) throws CapabilityException {
		return "Hello " + userName;
	}

}