/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you 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 io.netty.handler.codec.marshalling;

import io.netty.channel.ChannelHandlerContext;

import io.netty.util.concurrent.FastThreadLocal;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.marshalling.MarshallingConfiguration;
import org.jboss.marshalling.Unmarshaller;

UnmarshallerProvider implementation which use a ThreadLocal to store references to Unmarshaller instances. This may give you some performance boost if you need to unmarshall many small Object's.
/** * {@link UnmarshallerProvider} implementation which use a {@link ThreadLocal} to store references * to {@link Unmarshaller} instances. This may give you some performance boost if you need to unmarshall * many small {@link Object}'s. */
public class ThreadLocalUnmarshallerProvider implements UnmarshallerProvider { private final FastThreadLocal<Unmarshaller> unmarshallers = new FastThreadLocal<Unmarshaller>(); private final MarshallerFactory factory; private final MarshallingConfiguration config;
Create a new instance of the ThreadLocalUnmarshallerProvider
Params:
/** * Create a new instance of the {@link ThreadLocalUnmarshallerProvider} * * @param factory the {@link MarshallerFactory} to use to create {@link Unmarshaller}'s if needed * @param config the {@link MarshallingConfiguration} to use */
public ThreadLocalUnmarshallerProvider(MarshallerFactory factory, MarshallingConfiguration config) { this.factory = factory; this.config = config; } @Override public Unmarshaller getUnmarshaller(ChannelHandlerContext ctx) throws Exception { Unmarshaller unmarshaller = unmarshallers.get(); if (unmarshaller == null) { unmarshaller = factory.createUnmarshaller(config); unmarshallers.set(unmarshaller); } return unmarshaller; } }