/* | |
* 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.upnp.sample.tv; | |
import java.util.Properties; | |
import org.osgi.framework.BundleContext; | |
import org.osgi.framework.Filter; | |
import org.osgi.framework.ServiceRegistration; | |
import org.osgi.service.upnp.UPnPDevice; | |
import org.osgi.service.upnp.UPnPEventListener; | |
import org.osgi.service.upnp.UPnPService; | |
/* | |
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> | |
*/ | |
public class UPnPSubscriber { | |
ServiceRegistration registration = null; | |
BundleContext context; | |
UPnPEventListener listener; | |
public UPnPSubscriber(BundleContext context,UPnPEventListener listener){ | |
this.context = context; | |
this.listener = listener; | |
} | |
public void subscribe(String deviceType, String serviceType){ | |
String keys = "(&(" + UPnPDevice.TYPE + "="+ deviceType + ")(" + UPnPService.TYPE + "=" + serviceType + "))"; | |
try { | |
Filter filter = context.createFilter(keys); | |
Properties props = new Properties(); | |
props.put(UPnPEventListener.UPNP_FILTER, filter); | |
registration = context.registerService(UPnPEventListener.class.getName(), listener, props); | |
}catch (Exception ex){ | |
System.out.println(ex); | |
} | |
} | |
public void unsubscribe(){ | |
registration.unregister(); | |
registration = null; | |
} | |
} |