/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.cache.impl.operation;
import com.hazelcast.cache.impl.CacheDataSerializerHook;
import com.hazelcast.cache.impl.CacheService;
import com.hazelcast.config.CacheConfig;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import com.hazelcast.spi.impl.AbstractNamedOperation;
import javax.cache.configuration.CacheEntryListenerConfiguration;
import java.io.IOException;
/**
* <p>Listener can be registered and unregistered by {@link com.hazelcast.cache.impl.CacheService}. This operator
* delegates the request to the cache service.</p>
*/
public class CacheListenerRegistrationOperation
extends AbstractNamedOperation
implements IdentifiedDataSerializable {
private CacheEntryListenerConfiguration cacheEntryListenerConfiguration;
private boolean register;
public CacheListenerRegistrationOperation() {
}
public CacheListenerRegistrationOperation(String name, CacheEntryListenerConfiguration cacheEntryListenerConfiguration,
boolean register) {
super(name);
this.cacheEntryListenerConfiguration = cacheEntryListenerConfiguration;
this.register = register;
}
@Override
public void run()
throws Exception {
final CacheService service = getService();
CacheConfig cacheConfig = service.getCacheConfig(name);
if (register) {
//REGISTER
if (cacheConfig == null) {
throw new IllegalStateException("CacheConfig does not exist!!! name: " + name);
}
cacheConfig.addCacheEntryListenerConfiguration(cacheEntryListenerConfiguration);
} else if (cacheConfig != null) {
//UNREGISTER
cacheConfig.removeCacheEntryListenerConfiguration(cacheEntryListenerConfiguration);
}
}
@Override
public boolean returnsResponse() {
return true;
}
@Override
public Object getResponse() {
return null;
}
@Override
protected void writeInternal(ObjectDataOutput out)
throws IOException {
super.writeInternal(out);
out.writeObject(cacheEntryListenerConfiguration);
out.writeBoolean(register);
}
@Override
protected void readInternal(ObjectDataInput in)
throws IOException {
super.readInternal(in);
cacheEntryListenerConfiguration = in.readObject();
register = in.readBoolean();
}
@Override
public int getId() {
return CacheDataSerializerHook.LISTENER_REGISTRATION;
}
@Override
public int getFactoryId() {
return CacheDataSerializerHook.F_ID;
}
}