de.javakaffee.web.msm.serializer.kryo.FacesLRUMapRegistration Maven / Gradle / Ivy
/*
* Copyright 2011 Martin Grotzke
*
* 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 de.javakaffee.web.msm.serializer.kryo;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.sun.faces.util.LRUMap;
import java.lang.reflect.Field;
import java.util.Map.Entry;
import static com.esotericsoftware.minlog.Log.TRACE;
import static com.esotericsoftware.minlog.Log.trace;
/**
* A {@link KryoCustomization} that registers a custom serializer for
* mojarras {@link LRUMap}.
*
* @author Martin Grotzke
*/
public class FacesLRUMapRegistration implements KryoCustomization {
@Override
public void customize( final Kryo kryo ) {
kryo.register( LRUMap.class, new LRUMapSerializer( kryo ) );
}
static class LRUMapSerializer extends Serializer> {
private static final Field MAX_CAPACITY_FIELD;
static {
try {
MAX_CAPACITY_FIELD = LRUMap.class.getDeclaredField( "maxCapacity" );
MAX_CAPACITY_FIELD.setAccessible( true );
} catch ( final Exception e ) {
throw new RuntimeException( "The LRUMap seems to have changed, could not access expected field.", e );
}
}
private final Kryo _kryo;
/**
* Constructor.
*/
public LRUMapSerializer( final Kryo kryo ) {
_kryo = kryo;
}
@Override
public LRUMap read(Kryo kryo, Input input, Class> type) {
final int maxCapacity = input.readInt(true);
final LRUMap