/* AuthInfoProviderFactory.java -- 
   Copyright (C) 2003, 2006 Free Software Foundation, Inc.

This file is a part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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your option) any later version.

GNU Classpath 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
General Public License for more details.

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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
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package gnu.javax.crypto.sasl;

import gnu.java.security.Registry;
import gnu.javax.crypto.sasl.crammd5.CramMD5AuthInfoProvider;
import gnu.javax.crypto.sasl.plain.PlainAuthInfoProvider;
import gnu.javax.crypto.sasl.srp.SRPAuthInfoProvider;

/**
 * The concrete SASL authentication information provider factory.
 */
public class AuthInfoProviderFactory
    implements IAuthInfoProviderFactory
{
  // implicit 0-args constructor

  public IAuthInfoProvider getInstance(String mechanism)
  {
    if (mechanism == null)
      return null;
    mechanism = mechanism.trim().toUpperCase();
    if (mechanism.startsWith(Registry.SASL_SRP_MECHANISM))
      return new SRPAuthInfoProvider();
    if (mechanism.equals(Registry.SASL_CRAM_MD5_MECHANISM))
      return new CramMD5AuthInfoProvider();
    if (mechanism.equals(Registry.SASL_PLAIN_MECHANISM))
      return new PlainAuthInfoProvider();
    return null;
  }
}