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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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/*
 * 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.conduits;

import org.xnio.ChannelListener;
import org.xnio.ChannelListeners;
import org.xnio.IoUtils;
import org.xnio.channels.CloseListenerSettable;
import org.xnio.channels.SuspendableWriteChannel;
import org.xnio.channels.WriteListenerSettable;

/**
 * A conduit write-ready handler.
 *
 * @author David M. Lloyd
 */
public interface WriteReadyHandler extends TerminateHandler {
    /**
     * Signify that writes are ready.
     */
    void writeReady();

    /**
     * A write ready handler which calls channel listener(s).
     *
     * @param  the channel type
     */
    class ChannelListenerHandler & CloseListenerSettable> implements WriteReadyHandler {
        private final C channel;

        /**
         * Construct a new instance.
         *
         * @param channel the channel
         */
        public ChannelListenerHandler(final C channel) {
            this.channel = channel;
        }

        public void forceTermination() {
            IoUtils.safeClose(channel);
        }

        public void writeReady() {
            final ChannelListener writeListener = channel.getWriteListener();
            if (writeListener == null) {
                channel.suspendWrites();
            } else {
                ChannelListeners.invokeChannelListener(channel, writeListener);
            }
        }

        public void terminated() {
            ChannelListeners.invokeChannelListener(channel, channel.getCloseListener());
        }
    }

    /**
     * A runnable task which invokes the {@link WriteReadyHandler#writeReady()} method of the given handler.
     */
    class ReadyTask implements Runnable {

        private final WriteReadyHandler handler;

        /**
         * Construct a new instance.
         *
         * @param handler the handler to invoke
         */
        public ReadyTask(final WriteReadyHandler handler) {
            this.handler = handler;
        }

        public void run() {
            handler.writeReady();
        }
    }
}