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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 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 io.undertow.server;

import io.undertow.connector.ByteBufferPool;
import io.undertow.connector.PooledByteBuffer;
import org.xnio.Pool;
import org.xnio.Pooled;

import java.nio.ByteBuffer;

/**
 * @author Stuart Douglas
 */
public class XnioByteBufferPool implements ByteBufferPool {

    private final Pool pool;
    private final ByteBufferPool arrayBackedPool;
    private final int bufferSize;
    private final boolean direct;

    public XnioByteBufferPool(Pool pool) {
        this.pool = pool;
        Pooled buf = pool.allocate();
        bufferSize = buf.getResource().remaining();
        direct = !buf.getResource().hasArray();
        buf.free();
        if(direct) {
            arrayBackedPool = new DefaultByteBufferPool(false, bufferSize);
        } else {
            arrayBackedPool = this;
        }
    }

    @Override
    public PooledByteBuffer allocate() {
        final Pooled buf = pool.allocate();
        return new PooledByteBuffer() {

            private boolean open = true;

            @Override
            public ByteBuffer getBuffer() {
                return buf.getResource();
            }

            @Override
            public void close() {
                open = false;
                buf.free();
            }

            @Override
            public boolean isOpen() {
                return open;
            }
        };
    }

    @Override
    public ByteBufferPool getArrayBackedPool() {
        return arrayBackedPool;
    }

    @Override
    public void close() {

    }

    @Override
    public int getBufferSize() {
        return bufferSize;
    }

    @Override
    public boolean isDirect() {
        return direct;
    }
}