EchoService.java

/*
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 * Copyright 2010, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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package org.jboss.as.test.integration.osgi.xservice.module;

import org.jboss.as.test.integration.osgi.api.Echo;
import org.jboss.logging.Logger;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceController.Mode;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.jboss.osgi.framework.Services;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;

/**
 * A simple MSC service that provides an echo method
 *
 * @author Thomas.Diesler@jboss.org
 * @since 09-Nov-2010
 */
public class EchoService implements Echo, Service<Echo> {
    private static final Logger log = Logger.getLogger(EchoService.class);
    public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("osgi", "example", "target", "service");

    private final InjectedValue<BundleContext> injectedBundleContext = new InjectedValue<BundleContext>();
    private ServiceRegistration<Echo> registration;

    public static void addService(ServiceTarget serviceTarget) {
        EchoService service = new EchoService();
        ServiceBuilder<Echo> serviceBuilder = serviceTarget.addService(SERVICE_NAME, service);
        serviceBuilder.addDependency(Services.FRAMEWORK_ACTIVE, BundleContext.class, service.injectedBundleContext);
        serviceBuilder.setInitialMode(Mode.ACTIVE);
        serviceBuilder.install();
        log.infof("Service added: %s", SERVICE_NAME);
        log.infof("Echo Loader: %s", Echo.class.getClassLoader());
    }

    @Override
    public String echo(String message) {
        log.infof("Echo: %s", message);
        return message;
    }

    @Override
    public void start(StartContext context) throws StartException {
        BundleContext syscontext = injectedBundleContext.getValue();
        registration = syscontext.registerService(Echo.class, this, null);
    }

    @Override
    public void stop(StopContext context) {
        if (registration != null)
            registration.unregister();
    }

    @Override
    public Echo getValue() throws IllegalStateException {
        return this;
    }
}