HttpServiceTracker.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.http.whiteboard.internal.tracker;

import org.apache.felix.http.whiteboard.internal.manager.ExtenderManager;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.HttpService;

public final class HttpServiceTracker
    extends AbstractTracker<HttpService>
{
    private final ExtenderManager manager;

    public HttpServiceTracker(BundleContext context, ExtenderManager manager)
    {
        super(context, HttpService.class);
        this.manager = manager;
    }

    protected void added(HttpService service, ServiceReference ref)
    {
        this.manager.setHttpService(service);
    }

    protected void modified(HttpService service, ServiceReference ref)
    {
        // Do nothing
    }

    protected void removed(HttpService service, ServiceReference ref)
    {
        this.manager.unsetHttpService();
    }
}