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// ========================================================================
// Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at 
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses. 
// ========================================================================

/**
 * 
 */
package org.eclipse.jetty.server.nio;

import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.nio.DirectNIOBuffer;
import org.eclipse.jetty.io.nio.IndirectNIOBuffer;
import org.eclipse.jetty.server.AbstractConnector;

/* ------------------------------------------------------------ */
/**
 * 
 *
 */
public abstract class AbstractNIOConnector extends AbstractConnector implements NIOConnector
{
    private boolean _useDirectBuffers=true;
 
    /* ------------------------------------------------------------------------------- */
    public boolean getUseDirectBuffers()
    {
        return _useDirectBuffers;
    }

    /* ------------------------------------------------------------------------------- */
    /**
     * @param direct If True (the default), the connector can use NIO direct buffers.
     * Some JVMs have memory management issues (bugs) with direct buffers.
     */
    public void setUseDirectBuffers(boolean direct)
    {
        _useDirectBuffers=direct;
    }

    /* ------------------------------------------------------------------------------- */
    @Override
    public Buffer newRequestBuffer(int size)
    {
        return _useDirectBuffers?new DirectNIOBuffer(size):new IndirectNIOBuffer(size);
    }
    
    /* ------------------------------------------------------------------------------- */
    @Override
    public Buffer newRequestHeader(int size)
    {
        return new IndirectNIOBuffer(size);
    }

    /* ------------------------------------------------------------------------------- */
    @Override
    public Buffer newResponseBuffer(int size)
    {
        return _useDirectBuffers?new DirectNIOBuffer(size):new IndirectNIOBuffer(size);
    }
    
    /* ------------------------------------------------------------------------------- */
    @Override
    public Buffer newResponseHeader(int size)
    {
        return new IndirectNIOBuffer(size);
    }

    /* ------------------------------------------------------------------------------- */
    @Override
    protected boolean isRequestHeader(Buffer buffer)
    {
        return buffer instanceof IndirectNIOBuffer;
    }

    /* ------------------------------------------------------------------------------- */
    @Override
    protected boolean isResponseHeader(Buffer buffer)
    {
        return buffer instanceof IndirectNIOBuffer;
    }
}