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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging 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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/*
 * JBoss, Home of Professional Open Source
 *
 * Copyright 2013 Red Hat, Inc. and/or its affiliates.
 *
 * 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.xnio;

import org.xnio.channels.CloseListenerSettable;
import org.xnio.conduits.ConduitStreamSinkChannel;
import org.xnio.conduits.ConduitStreamSourceChannel;
import org.xnio.conduits.StreamSinkConduit;
import org.xnio.conduits.StreamSourceConduit;

import static org.xnio._private.Messages.msg;

/**
 * A connection between peers.
 *
 * @author David M. Lloyd
 */
public abstract class StreamConnection extends Connection implements CloseListenerSettable {

    private ConduitStreamSourceChannel sourceChannel;
    private ConduitStreamSinkChannel sinkChannel;
    private ChannelListener closeListener;

    /**
     * Construct a new instance.
     *
     * @param thread the I/O thread
     */
    protected StreamConnection(final XnioIoThread thread) {
        super(thread);
    }

    public void setCloseListener(final ChannelListener listener) {
        this.closeListener = listener;
    }

    public ChannelListener getCloseListener() {
        return closeListener;
    }

    public ChannelListener.Setter getCloseSetter() {
        return new Setter(this);
    }

    /**
     * Set the source conduit for this channel.  The source channel will automatically be updated.
     *
     * @param conduit the source conduit for this channel
     */
    protected void setSourceConduit(StreamSourceConduit conduit) {
        this.sourceChannel = conduit == null ? null : new ConduitStreamSourceChannel(this, conduit);
    }

    /**
     * Set the sink conduit for this channel.  The sink channel will automatically be updated.
     *
     * @param conduit the sink conduit for this channel
     */
    protected void setSinkConduit(StreamSinkConduit conduit) {
        this.sinkChannel = conduit == null ? null : new ConduitStreamSinkChannel(this, conduit);
    }

    void invokeCloseListener() {
        ChannelListeners.invokeChannelListener(this, closeListener);
    }

    private static  T notNull(T orig) throws IllegalStateException {
        if (orig == null) {
            throw msg.channelNotAvailable();
        }
        return orig;
    }

    /**
     * Get the source channel.
     *
     * @return the source channel
     */
    public ConduitStreamSourceChannel getSourceChannel() {
        return notNull(sourceChannel);
    }

    /**
     * Get the sink channel.
     *
     * @return the sink channel
     */
    public ConduitStreamSinkChannel getSinkChannel() {
        return notNull(sinkChannel);
    }
}