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/* ReplyHeader.java --

   Copyright (C) 2005 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 gnu.CORBA.GIOP.v1_0;

import gnu.CORBA.CDR.AbstractCdrInput;

import gnu.CORBA.CDR.AbstractCdrOutput;

import gnu.CORBA.GIOP.ServiceContext;

import gnu.CORBA.GIOP.CodeSetServiceContext;

/**

 * The header of the standard reply.

 *

 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)

 */

public class ReplyHeader

  extends gnu.CORBA.GIOP.ReplyHeader

{

  /**

   * Return the message status as a string.

   */

  public String getStatusString()

  {

    switch (reply_status)

      {

        case NO_EXCEPTION :

          return "ok";

        case USER_EXCEPTION :

          return "user exception";

        case SYSTEM_EXCEPTION :

          return "system exception";

        case LOCATION_FORWARD :

          return "moved";

        default :

          return null;

      }

  }

  /**

   * Get the string representation of all included contexts.

   */

  public String contexts()

  {

    StringBuffer b = new StringBuffer();

    for (int i = 0; i < service_context.length; i++)

      {

        b.append(service_context [ i ].toString());

        b.append(' ');

      }

    return b.toString();

  }

  /**

   * Reads the header from the stream.

   *

   * Sets the code set of this stream to

   * the code set, specfied in the header.

   *

   * @param in a stream to read from.

   */

  public void read(AbstractCdrInput in)

  {

    service_context = ServiceContext.readSequence(in);

    request_id = in.read_ulong();

    reply_status = in.read_ulong();

    in.setCodeSet(CodeSetServiceContext.find(service_context));

  }

  /**

   * Returns a short string representation.

   *

   * @return a string representation.

   */

  public String toString()

  {

    String status = getStatusString();

    if (status == null)

      status = "status " + reply_status;

    return request_id + ", " + status + " " + contexts();

  }

  /**

   * Writes the header to the stream.

   *

   * Sets the code set of this stream to

   * the code set, specfied in the header.

   *

   * @param out a stream to write into.

   */

  public void write(AbstractCdrOutput out)

  {

    ServiceContext.writeSequence(out, service_context);

    out.write_ulong(request_id);

    out.write_ulong(reply_status);

    out.setCodeSet(CodeSetServiceContext.find(service_context));

  }

}