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/* HandshakeCompletedEvent.java -- SSL handshake completed.

   Copyright (C) 2004 Free Software Foundation, Inc.

This file is 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

the Free Software Foundation; either version 2, or (at 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.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, 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

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package javax.net.ssl;

import java.security.Principal;

import java.security.cert.Certificate;

import javax.security.cert.X509Certificate;

/**

 * An event raised by a SSLSocket and passed to the {@link

 * HandshakeCompletedListener#handshakeCompleted(HandshakeCompletedEvent)}

 * method of all registered listeners when a SSL handshake in a SSL

 * protocol is completed.

 *

 * @author Casey Marshall (rsdio@metastatic.org)

 */

public class HandshakeCompletedEvent extends java.util.EventObject

{

  // Fields.

  // -------------------------------------------------------------------

  /** Serialization constant. */

  private static final long serialVersionUID = 7914963744257769778L;

  /** The session. */

  private final transient SSLSession session;

  // Constructor.

  // -------------------------------------------------------------------

  /**

   * Creates a new handshake completed event.

   *

   * @param socket The socket (also the source) creating this event.

   * @param session The associated session object.

   * @throws NullPointerException If <i>session</i> is null.

   */

  public HandshakeCompletedEvent(SSLSocket socket, SSLSession session)

  {

    super(socket);

    if (session == null)

      throw new NullPointerException();

    this.session = session;

  }

  // Instance methods.

  // --------------------------------------------------------------------

  /**

   * Returns the name of the cipher that was negotiated in this

   * connection.

   *

   * @return The negotiated cipher name.

   */

  public String getCipherSuite()

  {

    if (session != null)

      return session.getCipherSuite();

    return null;

  }

  /**

   * Returns the local certificates being used in this connection.

   *

   * @return The local certificates.

   */

  public Certificate[] getLocalCertificates()

  {

    if (session != null)

      return session.getLocalCertificates();

    return null;

  }

  /**

   * Returns the local identity used in this connection, or

   * <code>null</code> if there is none.

   *

   * @return The local identity.

   * @since 1.5

   */

  public Principal getLocalPrincipal ()

  {

    if (session != null)

      return session.getLocalPrincipal ();

    return null;

  }

  /**

   * Returns the peer's certificates being used in this connection.

   *

   * @return The peer's certificates.

   * @throws SSLPeerUnverifiedException If the peer has not been

   *   verified.

   */

  public Certificate[] getPeerCertificates() throws SSLPeerUnverifiedException

  {

    if (session != null)

      return session.getPeerCertificates();

    return null;

  }

  public X509Certificate[] getPeerCertificateChain() throws SSLPeerUnverifiedException

  {

    if (session != null)

      return session.getPeerCertificateChain();

    return null;

  }

  /**

   * Returns the peer's identity, or <code>null</code> if there is

   * none.

   *

   * @return The peer's identity.

   * @throws SSLPeerUnverifiedException If the remote peer's identity

   * could not be verified.

   * @since 1.5

   */

  public Principal getPeerPrincipal () throws SSLPeerUnverifiedException

  {

    if (session != null)

      return session.getPeerPrincipal ();

    return null;

  }

  /**

   * Returns the SSL session object associated with this connection.

   *

   * @return The session object.

   */

  public SSLSession getSession()

  {

    return session;

  }

  /**

   * Returns the socket over which this connection is being

   * negotiated. This method is equivalent to the {@link

   * java.util.EventObject#getSource()} method.

   *

   * @return The socket.

   */

  public SSLSocket getSocket()

  {

    return (SSLSocket) getSource();

  }

}