/*
* Copyright 2011 Future Systems
*
* Licensed 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.krakenapps.syslogmon.impl;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.felix.ipojo.annotations.Component;
import org.apache.felix.ipojo.annotations.Provides;
import org.krakenapps.syslogmon.SyslogClassifier;
import org.krakenapps.syslogmon.SyslogClassifierRegistry;
@Component(name = "syslog-classifier-registry")
@Provides
public class SyslogClassifierRegistryImpl implements SyslogClassifierRegistry {
private ConcurrentMap<String, SyslogClassifier> classifiers;
public SyslogClassifierRegistryImpl() {
classifiers = new ConcurrentHashMap<String, SyslogClassifier>();
}
@Override
public Collection<String> getClassifierNames() {
return Collections.unmodifiableCollection(classifiers.keySet());
}
@Override
public SyslogClassifier getClassifier(String name) {
return classifiers.get(name);
}
@Override
public void register(String name, SyslogClassifier classifier) {
SyslogClassifier old = classifiers.putIfAbsent(name, classifier);
if (old != null)
throw new IllegalStateException("duplicated classifier name: " + name);
}
@Override
public void unregister(String name) {
classifiers.remove(name);
}
}