org.jsl.collider.RetainableByteBufferCache Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of js-collider Show documentation

Java NIO framework

There is a newer version: 0.2.5

/*
 * Copyright (C) 2013 Sergey Zubarev, [email protected]
 *
 * This file is a part of JS-Collider framework.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.jsl.collider;

import java.nio.ByteBuffer;

public class RetainableByteBufferCache extends ObjectCache
{
    private static class BufferImpl extends RetainableByteBufferImpl
    {
        private RetainableByteBufferCache m_cache;

        public BufferImpl( ByteBuffer buf, RetainableByteBufferCache cache )
        {
            super( buf );
            m_cache = cache;
        }

        protected void finalRelease()
        {
            reinit();
            m_cache.put( this );
        }
    }

    private final boolean m_useDirectBuffer;
    private final int m_bufferCapacity;

    protected BufferImpl allocateObject()
    {
        final ByteBuffer buf =
                m_useDirectBuffer
                    ? ByteBuffer.allocateDirect( m_bufferCapacity )
                    : ByteBuffer.allocate( m_bufferCapacity );
        return new BufferImpl( buf, this );
    }

    public RetainableByteBufferCache( boolean useDirectBuffer, int bufferCapacity, int size )
    {
        super( RetainableByteBufferCache.class.getSimpleName() + "-" + bufferCapacity, new RetainableByteBuffer[size] );
        m_useDirectBuffer = useDirectBuffer;
        m_bufferCapacity = bufferCapacity;
    }
}