/*
* Copyright 2015-2016 the original author or authors.
*
* 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.springframework.integration.codec.kryo;
import java.util.ArrayList;
import java.util.List;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import com.esotericsoftware.kryo.Registration;
/**
* A {@link KryoRegistrar} that delegates and validates registrations across all components.
*
* @author David Turanski
* @since 4.2
*/
public class CompositeKryoRegistrar extends AbstractKryoRegistrar {
private final List<KryoRegistrar> delegates;
public CompositeKryoRegistrar(List<KryoRegistrar> delegates) {
this.delegates = new ArrayList<KryoRegistrar>(delegates);
if (!CollectionUtils.isEmpty(this.delegates)) {
validateRegistrations();
}
}
@Override
public List<Registration> getRegistrations() {
List<Registration> registrations = new ArrayList<Registration>();
for (KryoRegistrar registrar : this.delegates) {
registrations.addAll(registrar.getRegistrations());
}
return registrations;
}
private void validateRegistrations() {
List<Integer> ids = new ArrayList<Integer>();
List<Class<?>> types = new ArrayList<Class<?>>();
for (Registration registration : getRegistrations()) {
Assert.isTrue(registration.getId() >= MIN_REGISTRATION_VALUE,
"registration ID must be >= " + MIN_REGISTRATION_VALUE);
if (ids.contains(registration.getId())) {
throw new RuntimeException(String.format("Duplicate registration ID found: %d",
registration.getId()));
}
ids.add(registration.getId());
if (types.contains(registration.getType())) {
throw new RuntimeException(String.format("Duplicate registration found for type: %s",
registration.getType()));
}
types.add(registration.getType());
if (log.isInfoEnabled()) {
log.info(String.format("configured Kryo registration %s with serializer %s", registration,
registration.getSerializer().getClass().getName()));
}
}
}
}