simulated-devices/light/src/main/java/org/eclipse/sensinact/gateway/simulated/light/osgi/Activator.java

/*
* Copyright (c) 2020 Kentyou.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
*    Kentyou - initial API and implementation
 */
package org.eclipse.sensinact.gateway.simulated.light.osgi;

import org.eclipse.sensinact.gateway.common.bundle.AbstractActivator;
import org.eclipse.sensinact.gateway.common.bundle.Mediator;
import org.eclipse.sensinact.gateway.generic.ExtModelConfiguration;
import org.eclipse.sensinact.gateway.generic.ExtModelConfigurationBuilder;
import org.eclipse.sensinact.gateway.generic.local.LocalProtocolStackEndpoint;
import org.eclipse.sensinact.gateway.generic.packet.Packet;
import org.eclipse.sensinact.gateway.simulated.light.internal.LightConfig;
import org.eclipse.sensinact.gateway.simulated.light.swing.LightPanel;
import org.osgi.annotation.bundle.Header;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;

import java.util.Collections;

@Header(name = Constants.BUNDLE_ACTIVATOR, value = "${@class}")
public class Activator extends AbstractActivator<Mediator> {
    private static final String GUI_ENABLED = "org.eclipse.sensinact.simulated.gui.enabled";
    private LocalProtocolStackEndpoint<Packet> connector;
    private LightConfig config;
    private LightPanel lightPanel;

    public void doStart() throws Exception {
        config = new LightConfig();

        ExtModelConfiguration<Packet> manager = ExtModelConfigurationBuilder.instance(super.mediator
        	).withStartAtInitializationTime(true
        	).build("light-resource.xml", Collections.<String, String>emptyMap());

        connector = new LocalProtocolStackEndpoint<Packet>(super.mediator);
        connector.addInjectableInstance(LightConfig.class, config);
        connector.connect(manager);

        if ("true".equals(mediator.getProperty(GUI_ENABLED))) {
            lightPanel = new LightPanel();
            config.addListener(lightPanel);
        }
    }

    public void doStop() throws Exception {
        connector.stop();
        connector = null;

        config.removeListener(lightPanel);
        if (lightPanel != null) {
            lightPanel.stop();
        }
    }

    public Mediator doInstantiate(BundleContext context) {
        return new Mediator(context);
    }
}