/* ObjectHelper.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
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any later version.

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General Public License for more details.

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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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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.CORBA;

import gnu.CORBA.Minor;
import gnu.CORBA.OrbRestricted;

import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.OutputStream;

/**
 * The helper operations for the binding list.
 *
 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
 */
public abstract class ObjectHelper
{
  /**
   * Extract the array of object from the given {@link Any}.
   */
  public static org.omg.CORBA.Object extract(Any a)
  {
    try
      {
        return ((ObjectHolder) a.extract_Streamable()).value;
      }
    catch (ClassCastException ex)
      {
        BAD_OPERATION bad = new BAD_OPERATION("CORBA object expected");
        bad.minor = Minor.Any;
        throw bad;        
      }
  }

  /**
   * Get the object repository id.
   * @return the empty string.
   */
  public static String id()
  {
    return "";
  }

  /**
   * Insert the object into the given {@link Any}.
   */
  public static void insert(Any a, org.omg.CORBA.Object object)
  {
    a.insert_Streamable(new ObjectHolder(object));
  }

  /**
   * Read the object from the given CDR input stream.
   */
  public static org.omg.CORBA.Object read(InputStream istream)
  {
    return istream.read_Object();
  }

  /**
   * Return the object type code.
   */
  public static TypeCode type()
  {
    return OrbRestricted.Singleton.get_primitive_tc(TCKind.tk_objref);
  }

  /**
   * Write the object into the given CDR output stream.
   */
  public static void write(OutputStream ostream, org.omg.CORBA.Object value)
  {
    ostream.write_Object(value);
  }
}
