/*
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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 2009 Sun Microsystems, Inc.
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*/
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package org.opends.sdk.ldap;
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import java.io.IOException;
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import javax.security.sasl.SaslException;
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import com.sun.grizzly.Buffer;
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import com.sun.grizzly.streams.StreamReader;
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import com.sun.grizzly.streams.StreamReaderDecorator;
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/**
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* SASL stream reader.
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*/
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final class SASLStreamReader extends StreamReaderDecorator
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{
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private final SASLFilter saslFilter;
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public SASLStreamReader(StreamReader underlyingReader,
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SASLFilter saslFilter)
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{
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super(underlyingReader);
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this.saslFilter = saslFilter;
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}
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@Override
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public boolean appendBuffer(Buffer buffer)
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{
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if (buffer == null)
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{
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return false;
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}
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byte[] appBuffer;
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try
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{
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appBuffer = saslFilter.unwrap(buffer, getConnection());
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}
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catch (SaslException e)
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{
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throw new IllegalStateException(e);
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}
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if (appBuffer.length == 0)
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{
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return false;
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}
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Buffer newBuffer = newBuffer(appBuffer.length);
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newBuffer.put(appBuffer);
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if (super.appendBuffer(newBuffer))
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{
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buffer.dispose();
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return true;
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}
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return false;
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}
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@Override
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protected Buffer read0() throws IOException
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{
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return underlyingReader.readBuffer();
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}
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@Override
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protected Buffer unwrap(Object data)
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{
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return (Buffer) data;
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}
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@Override
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protected final Object wrap(Buffer buffer)
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{
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return buffer;
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}
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}
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