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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * 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:
 *
 *   https://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.Marshaller;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.marshalling.MarshallingConfiguration;

/**
 * {@link UnmarshallerProvider} implementation which use a {@link ThreadLocal} to store references
 * to {@link Marshaller} instances. This may give you some performance boost if you need to marshall
 * many small {@link Object}'s and your actual Thread count is not to big
 */
public class ThreadLocalMarshallerProvider implements MarshallerProvider {
    private final FastThreadLocal marshallers = new FastThreadLocal();

    private final MarshallerFactory factory;
    private final MarshallingConfiguration config;

    /**
     * Create a new instance of the {@link ThreadLocalMarshallerProvider}
     *
     * @param factory   the {@link MarshallerFactory} to use to create {@link Marshaller}'s if needed
     * @param config    the {@link MarshallingConfiguration} to use
     */
    public ThreadLocalMarshallerProvider(MarshallerFactory factory, MarshallingConfiguration config) {
        this.factory = factory;
        this.config = config;
    }

    @Override
    public Marshaller getMarshaller(ChannelHandlerContext ctx) throws Exception {
        Marshaller marshaller = marshallers.get();
        if (marshaller == null) {
            marshaller = factory.createMarshaller(config);
            marshallers.set(marshaller);
        }
        return marshaller;
    }
}