Activator.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.felix.dependencymanager.samples.dictionary.api;

import java.util.Hashtable;

import org.apache.felix.dm.DependencyActivatorBase;
import org.apache.felix.dm.DependencyManager;
import org.apache.felix.service.command.CommandProcessor;
import org.osgi.framework.BundleContext;
import org.osgi.service.log.LogService;

/**
 * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
 */
public class Activator extends DependencyActivatorBase {
    @Override
    public void init(BundleContext context, DependencyManager dm) throws Exception {
        // Create the factory configuration for our DictionaryImpl service.
        dm.add(createFactoryConfigurationAdapterService(DictionaryConfiguration.class.getName(), "updated", true, DictionaryConfiguration.class)
            .setInterface(DictionaryService.class.getName(), null)
            .setImplementation(DictionaryImpl.class)
            .add(createServiceDependency().setService(LogService.class))); // NullObject 
        
        // Create the Dictionary Aspect
        dm.add(createAspectService(DictionaryService.class, "(lang=en)", 10)
            .setImplementation(DictionaryAspect.class)
            .add(createConfigurationDependency().setPid(DictionaryAspectConfiguration.class.getName()).setCallback("updated", DictionaryConfiguration.class))
            .add(createServiceDependency().setService(LogService.class))); // NullObject
        
        // Create the SpellChecker component
        Hashtable<String, Object> props = new Hashtable<>();
        props.put(CommandProcessor.COMMAND_SCOPE, "dictionary");
        props.put(CommandProcessor.COMMAND_FUNCTION, new String[] { "spellcheck" });
        dm.add(createComponent()
            .setImplementation(SpellChecker.class)
            .setInterface(SpellChecker.class.getName(), props)
            .add(createServiceDependency().setService(DictionaryService.class).setRequired(true))
            .add(createServiceDependency().setService(LogService.class))); // NullObject
    }
}