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Groovy example source code file (HarnessActivator.groovy)

This example Groovy source code file (HarnessActivator.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

bundleactivator, bundleactivator, groovygreeter, groovygreeter, harnessactivator, object, object, servicereference, servicereference, string

The Groovy HarnessActivator.groovy source code

/*
 * Copyright 2003-2010 the original author or authors.
 *
 * 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.
 */
package org.codehaus.groovy.osgi.harness

import org.osgi.framework.BundleActivator
import org.osgi.framework.BundleContext
import org.osgi.framework.ServiceRegistration
import org.osgi.framework.ServiceReference
import org.codehaus.groovy.osgi.GroovyGreeter

/**
 * This OSGi Activator finds all registered services of type GroovyGreeter
 * and then invokes the sayHello() method on any that it finds.
 *
 * @author Hamlet D'Arcy
 */
public class HarnessActivator implements BundleActivator {

    public void start(BundleContext context) {
        String serviceName = GroovyGreeter.class.getName()
        ServiceReference[] references = context.getAllServiceReferences(serviceName, null)

        println "${ references ? references.size() : 0 } GroovyGreeter services found."

        references?.each { ServiceReference ref ->
            Object serviceHandle = context.getService(ref)
            GroovyGreeter service = (GroovyGreeter) serviceHandle
            service.sayHello()
        }
    }

    public void stop(BundleContext context) {
    }
}

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