/*
* 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.logdb.impl;
import java.util.Collection;
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.logdb.LookupHandler;
import org.krakenapps.logdb.LookupHandlerRegistry;
@Component(name = "logdb-lookup-registry")
@Provides
public class LookupHandlerRegistryImpl implements LookupHandlerRegistry {
private ConcurrentMap<String, LookupHandler> lookupHandlers;
@Override
public Collection<String> getLookupHandlerNames() {
return lookupHandlers.keySet();
}
public LookupHandlerRegistryImpl() {
lookupHandlers = new ConcurrentHashMap<String, LookupHandler>();
}
@Override
public void addLookupHandler(String name, LookupHandler handler) {
LookupHandler old = lookupHandlers.putIfAbsent(name, handler);
if (old != null)
throw new IllegalStateException("lookup handler name conflict: " + name);
}
@Override
public LookupHandler getLookupHandler(String name) {
return lookupHandlers.get(name);
}
@Override
public void removeLookupHandler(String name) {
lookupHandlers.remove(name);
}
}