/*
* 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.ipojo.dependency.impl;
import org.apache.felix.ipojo.dependency.interceptors.ServiceTrackingInterceptor;
import org.apache.felix.ipojo.dependency.interceptors.TransformedServiceReference;
import org.apache.felix.ipojo.util.DependencyModel;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Filter;
import org.osgi.framework.ServiceReference;
/**
* An implementation of the service tracking interceptor using a filter.
*/
public class FilterBasedServiceTrackingInterceptor implements ServiceTrackingInterceptor {
private final Filter m_filter;
public FilterBasedServiceTrackingInterceptor(Filter filter) {
m_filter = filter;
}
public void open(DependencyModel dependency) {
}
public <S> TransformedServiceReference<S> accept(DependencyModel dependency, BundleContext context, TransformedServiceReference<S> ref) {
if (ServiceReferenceUtils.match(m_filter, ref) && dependency.match(ref)) {
return ref;
} else {
return null;
}
}
public void close(DependencyModel dependency) {
}
public <S> S getService(DependencyModel dependency, S service, ServiceReference<S> reference) {
return service;
}
public void ungetService(DependencyModel dependency, boolean noMoreUsage, ServiceReference reference) {
}
}