/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2010 Sun Microsystems, Inc.
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*/
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package com.sun.opends.sdk.ldap;
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import org.opends.sdk.ConnectionSecurityLayer;
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import org.opends.sdk.ErrorResultException;
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import com.sun.grizzly.*;
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import com.sun.grizzly.attributes.AttributeStorage;
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import com.sun.grizzly.memory.MemoryManager;
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import com.sun.grizzly.memory.MemoryUtils;
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/**
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* <tt>Transformer</tt>, which encodes SASL encrypted data, contained in the
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* input Buffer, to the output Buffer.
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*/
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final class SASLEncoderTransformer extends AbstractTransformer<Buffer, Buffer>
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{
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private static final int BUFFER_SIZE = 4096;
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private final byte[] buffer = new byte[BUFFER_SIZE];
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private final ConnectionSecurityLayer bindContext;
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private final MemoryManager<Buffer> memoryManager;
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@SuppressWarnings("unchecked")
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public SASLEncoderTransformer(final ConnectionSecurityLayer bindContext)
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{
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this(bindContext, TransportFactory.getInstance().getDefaultMemoryManager());
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}
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public SASLEncoderTransformer(final ConnectionSecurityLayer bindContext,
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final MemoryManager<Buffer> memoryManager)
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{
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this.bindContext = bindContext;
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this.memoryManager = memoryManager;
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}
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public String getName()
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{
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return this.getClass().getName();
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}
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public boolean hasInputRemaining(final AttributeStorage storage,
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final Buffer input)
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{
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return input != null && input.hasRemaining();
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}
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@Override
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public TransformationResult<Buffer, Buffer> transformImpl(
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final AttributeStorage storage, final Buffer input)
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throws TransformationException
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{
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final int len = Math.min(buffer.length, input.remaining());
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input.get(buffer, 0, len);
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try
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{
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final Buffer output = MemoryUtils.wrap(memoryManager, bindContext.wrap(
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buffer, 0, len));
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return TransformationResult.createCompletedResult(output, input);
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}
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catch (final ErrorResultException e)
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{
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return TransformationResult.createErrorResult(e.getResult()
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.getResultCode().intValue(), e.getMessage());
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}
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}
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}
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