/**
* Copyright (c) 2010-2014, openHAB.org and others.
*
* 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
*/
package org.openhab.io.gpio.internal;
import java.util.Dictionary;
import java.util.Hashtable;
import org.openhab.io.gpio.GPIO;
import org.openhab.io.gpio.linux.GPIOLinux;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.service.cm.ManagedService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Implementation of OSGi bundle activator.
*
* @author Dancho Penev
* @since 1.5.0
*/
public class GPIOActivator implements BundleActivator {
private static final Logger logger = LoggerFactory.getLogger(GPIOActivator.class);
/**
* Called when this bundle is started by OSGi Framework.
* Determines underlying platform and loads the relevant service
* which implements <code>GPIO</code> interface.
*/
public void start(BundleContext context) throws Exception {
/* Linux user space GPIO implementation, "sysfs" based */
if (System.getProperty("os.name").toLowerCase().startsWith("linux")) {
GPIOLinux gpioLinux = new GPIOLinux();
Dictionary<String, String> properties = new Hashtable<String, String>();
properties.put("service.pid", "org.openhab.gpio");
context.registerService(GPIO.class, gpioLinux, null);
context.registerService(ManagedService.class, gpioLinux, properties);
} else {
/* Throwing exception is not implemented because it's causing Equinox to constantly trying to start the bundle */
logger.error("No supported operating system was found, GPIO service won't be available");
}
}
/**
* Called when this bundle is stopped by OSGi Framework.
*/
public void stop(BundleContext context) throws Exception {}
}