/* ServiceIdHelper.java --
   Copyright (C) 2005, 2006 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.

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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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
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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
executable, regardless of the license terms of these independent
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package org.omg.IOP;

import gnu.CORBA.OrbRestricted;

import org.omg.CORBA.Any;
import org.omg.CORBA.BAD_OPERATION;
import org.omg.CORBA.ORB;
import org.omg.CORBA.TCKind;
import org.omg.CORBA.TypeCode;
import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.OutputStream;

/**
* A helper operations for a context service id. A service Id is an integer
* constant and needs no helper, but the one is included to
* to facilitate the automated code handling.
*
* @specnote In this implementation, this class is not in use. Its "logical"
* place is the read/write methods of the ServiceContextHelper, to handle the
* first member (int) of the context record.
*
* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
*/
public abstract class ServiceIdHelper
{
  /**
   * Create the ServiceId typecode (alias of CORBA ulong, named "ServiceId".
   */
  public static TypeCode type()
  {
    ORB orb = OrbRestricted.Singleton;
    return orb.create_alias_tc("IDL:omg.org/IOP/ServiceId:1.0", "ServiceId",
                               orb.get_primitive_tc(TCKind.tk_ulong)
                              );
  }

  /**
  * Insert the int into the given Any.
  */
  public static void insert(Any any, int that)
  {
    any.insert_ulong(that);
  }

  /**
   * Extract the int from given Any.
   * This method uses the ServiceContextHolder.
   *
   * @throws BAD_OPERATION if the passed Any does not contain int.
   */
  public static int extract(Any any)
  {
    return any.extract_ulong();
  }

  /**
   * Get the int repository id.
   *
   * @return "IDL:omg.org/IOP/ServiceId:1.0", always.
   */
  public static String id()
  {
    return "IDL:omg.org/IOP/ServiceId:1.0";
  }

  /**
   * Read the ServiceId from the CDR intput stream.
   *
   * @param input a org.omg.CORBA.portable stream to read from.
   */
  public static int read(InputStream input)
  {
    return input.read_ulong();
  }

  /**
   * Write the ServiceId to the CDR output stream.
   *
   * @param output a org.omg.CORBA.portable stream stream to write into.
   * @param value a value to write.
   */
  public static void write(OutputStream output, int value)
  {
    output.write_ulong(value);
  }
}