/*
* 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.sling.commons.log.logback.internal;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.turbo.TurboFilter;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import java.util.Collections;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class TurboFilterTracker extends ServiceTracker implements LogbackResetListener{
private final LoggerContext loggerContext;
private final Map<ServiceReference,TurboFilter> filters = new ConcurrentHashMap<ServiceReference, TurboFilter>();
public TurboFilterTracker(BundleContext context, LoggerContext loggerContext) {
super(context, TurboFilter.class.getName(), null);
this.loggerContext = loggerContext;
super.open();
}
@Override
public Object addingService(ServiceReference reference) {
TurboFilter tf = (TurboFilter) super.addingService(reference);
tf.setContext(loggerContext);
tf.start();
attachFilter(tf);
filters.put(reference,tf);
return tf;
}
@Override
public void removedService(ServiceReference reference, Object service) {
TurboFilter tf = (TurboFilter) service;
filters.remove(reference);
loggerContext.getTurboFilterList().remove(tf);
super.removedService(reference, service);
}
@Override
public void onResetStart(LoggerContext context) {
for(TurboFilter tf : filters.values()){
attachFilter(tf);
}
}
@Override
public synchronized void close() {
super.close();
filters.clear();
}
@Override
public void onResetComplete(LoggerContext context) {
}
public Map<ServiceReference, TurboFilter> getFilters() {
return Collections.unmodifiableMap(filters);
}
private void attachFilter(TurboFilter tf) {
if(!loggerContext.getTurboFilterList().contains(tf)){
loggerContext.addTurboFilter(tf);
}
}
}