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A client library for memcached.

There is a newer version: 2.12.3

/**
 * Copyright (C) 2006-2009 Dustin Sallings
 * Copyright (C) 2009-2011 Couchbase, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
 * IN THE SOFTWARE.
 */

package net.spy.memcached.protocol.binary;

import java.util.Map;

import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslException;

import net.spy.memcached.ops.OperationCallback;
import net.spy.memcached.ops.SASLAuthOperation;

/**
 * SASL authenticator.
 */
public class SASLAuthOperationImpl extends SASLBaseOperationImpl implements
    SASLAuthOperation {

  private static final byte CMD = 0x21;

  public SASLAuthOperationImpl(String[] m, String s, Map p,
      CallbackHandler h, OperationCallback c) {
    super(CMD, m, EMPTY_BYTES, s, p, h, c);
  }

  @Override
  protected byte[] buildResponse(SaslClient sc) throws SaslException {
    return sc.hasInitialResponse() ? sc.evaluateChallenge(challenge)
        : EMPTY_BYTES;
  }

  @Override
  public String toString() {
    return "SASL auth operation";
  }
}