GenericNetworkBootstrapper.java

package org.opennaas.extensions.genericnetwork.repository;

/*
 * #%L
 * OpenNaaS :: OF Network
 * %%
 * Copyright (C) 2007 - 2014 Fundació Privada i2CAT, Internet i Innovació a Catalunya
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opennaas.core.resources.IModel;
import org.opennaas.core.resources.IResourceBootstrapper;
import org.opennaas.core.resources.Resource;
import org.opennaas.core.resources.ResourceException;
import org.opennaas.extensions.genericnetwork.capability.nettopology.INetTopologyCapability;
import org.opennaas.extensions.genericnetwork.capability.nettopology.NetTopologyCapability;
import org.opennaas.extensions.genericnetwork.model.GenericNetworkModel;

/**
 * 
 * @author Isart Canyameres Gimenez (i2cat)
 * 
 */
public class GenericNetworkBootstrapper implements IResourceBootstrapper {

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

	private IModel	oldModel;

	@Override
	public void bootstrap(Resource resource) throws ResourceException {
		log.info("Loading bootstrap to start resource...");
		oldModel = resource.getModel();
		resource.setModel(new GenericNetworkModel());

		// FIXME coupling Bootstrapper with a Capability implementation!!!
		NetTopologyCapability topologyCapability = null;
		try {
			topologyCapability = (NetTopologyCapability) resource.getCapabilityByInterface(INetTopologyCapability.class);
		} catch (ResourceException e) {
			log.warn("Failed to load topology at bootstrap. Skipping topology load.", e);
		}
		if (topologyCapability != null)
			topologyCapability.loadTopology();

	}

	@Override
	public void revertBootstrap(Resource resource) throws ResourceException {
		resource.setModel(oldModel);
	}

	/**
	 * Since we're not going to read information from real switches, we would not implement the reset model method, so no one can delete the
	 * modelinformation. Model will be reset only during bootstrap.
	 * 
	 */
	@Override
	public void resetModel(Resource resource) throws ResourceException {
		log.info("Ignoring resetModel signal.");
	}

}