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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 2013 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.channel;

import io.netty.util.ReferenceCountUtil;
import io.netty.util.ReferenceCounted;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.StringUtil;

import java.net.SocketAddress;

/**
 * The default {@link AddressedEnvelope} implementation.
 *
 * @param  the type of the wrapped message
 * @param  the type of the recipient address
 */
public class DefaultAddressedEnvelope implements AddressedEnvelope {

    private final M message;
    private final A sender;
    private final A recipient;

    /**
     * Creates a new instance with the specified {@code message}, {@code recipient} address, and
     * {@code sender} address.
     */
    public DefaultAddressedEnvelope(M message, A recipient, A sender) {
        ObjectUtil.checkNotNull(message, "message");
        if (recipient == null && sender == null) {
            throw new NullPointerException("recipient and sender");
        }

        this.message = message;
        this.sender = sender;
        this.recipient = recipient;
    }

    /**
     * Creates a new instance with the specified {@code message} and {@code recipient} address.
     * The sender address becomes {@code null}.
     */
    public DefaultAddressedEnvelope(M message, A recipient) {
        this(message, recipient, null);
    }

    @Override
    public M content() {
        return message;
    }

    @Override
    public A sender() {
        return sender;
    }

    @Override
    public A recipient() {
        return recipient;
    }

    @Override
    public int refCnt() {
        if (message instanceof ReferenceCounted) {
            return ((ReferenceCounted) message).refCnt();
        } else {
            return 1;
        }
    }

    @Override
    public AddressedEnvelope retain() {
        ReferenceCountUtil.retain(message);
        return this;
    }

    @Override
    public AddressedEnvelope retain(int increment) {
        ReferenceCountUtil.retain(message, increment);
        return this;
    }

    @Override
    public boolean release() {
        return ReferenceCountUtil.release(message);
    }

    @Override
    public boolean release(int decrement) {
        return ReferenceCountUtil.release(message, decrement);
    }

    @Override
    public AddressedEnvelope touch() {
        ReferenceCountUtil.touch(message);
        return this;
    }

    @Override
    public AddressedEnvelope touch(Object hint) {
        ReferenceCountUtil.touch(message, hint);
        return this;
    }

    @Override
    public String toString() {
        if (sender != null) {
            return StringUtil.simpleClassName(this) +
                    '(' + sender + " => " + recipient + ", " + message + ')';
        } else {
            return StringUtil.simpleClassName(this) +
                    "(=> " + recipient + ", " + message + ')';
        }
    }
}

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