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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libjava/] [classpath/] [org/] [omg/] [IOP/] [ServiceContextHelper.java] - Blame information for rev 14

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1 14 jlechner
/* ServiceContextHelper.java --
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   Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package org.omg.IOP;
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import gnu.CORBA.Minor;
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import org.omg.CORBA.Any;
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import org.omg.CORBA.BAD_OPERATION;
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import org.omg.CORBA.ORB;
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import org.omg.CORBA.StructMember;
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import org.omg.CORBA.TCKind;
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import org.omg.CORBA.TypeCode;
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import org.omg.CORBA.portable.InputStream;
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import org.omg.CORBA.portable.OutputStream;
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/**
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* A helper operations for the structure {@link ServiceContext}.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public abstract class ServiceContextHelper
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{
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  /**
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   * The cached typecode value, computed only once.
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   */
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  private static TypeCode typeCode;
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  /**
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   * Create the ServiceContext typecode (structure,
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   * named "ServiceContext").
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   * The typecode states that the structure contains the
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   * following fields: context_id, context_data.
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   */
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  public static TypeCode type()
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  {
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    if (typeCode == null)
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      {
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        ORB orb = ORB.init();
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        StructMember[] members = new StructMember[ 2 ];
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        TypeCode field;
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        field =
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          orb.create_alias_tc("IDL:omg.org/IOP/ServiceId:1.0", "ServiceId",
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                              orb.get_primitive_tc(TCKind.tk_ulong)
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                             );
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        members [ 0 ] = new StructMember("context_id", field, null);
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        field =
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          orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet));
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        members [ 1 ] = new StructMember("context_data", field, null);
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        typeCode = orb.create_struct_tc(id(), "ServiceContext", members);
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      }
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    return typeCode;
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  }
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  /**
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  * Insert the ServiceContext into the given Any.
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  * This method uses the ServiceContextHolder.
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  *
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  * @param any the Any to insert into.
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  * @param that the ServiceContext to insert.
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  */
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  public static void insert(Any any, ServiceContext that)
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  {
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    any.insert_Streamable(new ServiceContextHolder(that));
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  }
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  /**
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   * Extract the ServiceContext from given Any.
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   * This method uses the ServiceContextHolder.
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   *
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   * @throws BAD_OPERATION if the passed Any does not contain ServiceContext.
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   */
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  public static ServiceContext extract(Any any)
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  {
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    try
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      {
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        return ((ServiceContextHolder) any.extract_Streamable()).value;
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      }
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    catch (ClassCastException cex)
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      {
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        BAD_OPERATION bad = new BAD_OPERATION("ServiceContext expected");
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        bad.minor = Minor.Any;
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        bad.initCause(cex);
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        throw bad;
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      }
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  }
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  /**
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   * Get the ServiceContext repository id.
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   *
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   * @return "IDL:omg.org/IOP/ServiceContext:1.0", always.
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   */
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  public static String id()
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  {
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    return "IDL:omg.org/IOP/ServiceContext:1.0";
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  }
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  /**
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   * Read the context from the CDR intput stream (first id, then
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   * data as a flexible length byte sequence).
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   *
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   * @param input a org.omg.CORBA.portable stream to read from.
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   */
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  public static ServiceContext read(InputStream input)
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  {
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    ServiceContext value = new ServiceContext();
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    value.context_id = input.read_long();
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    value.context_data = new byte[ input.read_long() ];
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    for (int i0 = 0; i0 < value.context_data.length; i0++)
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      value.context_data [ i0 ] = input.read_octet();
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    return value;
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  }
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  /**
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   * Write the context to the CDR output stream (first id, then
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   * data as a flexible length byte sequence).
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   *
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   * @param output a org.omg.CORBA.portable stream stream to write into.
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   * @param value a value to write.
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   */
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  public static void write(OutputStream output, ServiceContext value)
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  {
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    output.write_long(value.context_id);
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    output.write_long(value.context_data.length);
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    for (int i0 = 0; i0 < value.context_data.length; i0++)
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      output.write_octet(value.context_data [ i0 ]);
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  }
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}

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