gcc/libjava/classpath/org/omg/PortableInterceptor/ObjectReferenceTemplateSeqHelper.java

/*  ObjectReferenceTemplateSeqHelper.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
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WITHOUT ANY WARRANTY; without even the implied warranty of
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General Public License for more details.

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02110-1301 USA.

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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
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package org.omg.PortableInterceptor;

import gnu.CORBA.Minor;
import gnu.CORBA.typecodes.GeneralTypeCode;

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

/**
 * Provides static helper methods for working with the array of object reference
 * templates.
 *
 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
 */
public abstract class ObjectReferenceTemplateSeqHelper
{
  /**
   * Extract the <code>ObjectReferenceTemplate[]</code> from the given
   * {@link Any}. This implementation expects the {@link Any} to hold the
   * instance of {@link ObjectReferenceTemplateSeqHolder} that is returned by
   * {@link Any#extract_Streamable() }.
   *
   * @param a an Any to extract the array from.
   *
   * @return the extracted array.
   *
   * @throws BAD_OPERATION if the Any contains something other than the the
   * {@link ObjectReferenceTemplateSeqHolder}.
   */
  public static ObjectReferenceTemplate[] extract(Any a)
  {
    try
      {
        ObjectReferenceTemplateSeqHolder h = (ObjectReferenceTemplateSeqHolder)
          a.extract_Streamable();
        return h.value;
      }
    catch (ClassCastException cex)
      {
        BAD_OPERATION bad = new BAD_OPERATION(
          "ObjectReferenceTemplate[] expected");
        bad.initCause(cex);
        bad.minor = Minor.Any;
        throw bad;
      }
  }

  /**
   * Returns the object reference template sequence repository Id.
   *
   * @return "IDL:omg.org/PortableInterceptor/ObjectReferenceTemplateSeq:1.0",
   * always.
   */
  public static String id()
  {
    return "IDL:omg.org/PortableInterceptor/ObjectReferenceTemplateSeq:1.0";
  }

  /**
   * Insert into the given <code>ObjectReferenceTemplate[]</code> into the
   * given {@link Any}. This implementation first creates a
   * {@link ObjectReferenceTemplateSeqHolder} and then calls
   * {@link Any#insert_Streamable(Streamable)}.
   *
   * @param into the target Any.
   * @param that the array to insert.
   */
  public static void insert(Any into, ObjectReferenceTemplate[] that)
  {
    ObjectReferenceTemplateSeqHolder holder =
      new ObjectReferenceTemplateSeqHolder(that);
    into.insert_Streamable(holder);
  }

  /**
   * Reads the <code>ObjectReferenceTemplate[]</code> from the CORBA input
   * stream.
   *
   * @param input the CORBA (not java.io) stream to read from.
   * @return the value from the stream.
   */
  public static ObjectReferenceTemplate[] read(InputStream input)
  {
    ObjectReferenceTemplate[] value =
      new ObjectReferenceTemplate[input.read_long()];
    for (int i = 0; i < value.length; i++)
      value[i] = ObjectReferenceTemplateHelper.read(input);
    return value;
  }

  /**
   * Creates and returns a new instance of the TypeCode, corresponding the CORBA
   * <code>ObjectReferenceTemplate[]</code>. The length of the sequence is
   * left with the initial value 0.
   */
  public static TypeCode type()
  {
    GeneralTypeCode t = new GeneralTypeCode(TCKind.tk_sequence);
    t.setId(id());
    t.setLength(0);
    t.setContentType(ObjectReferenceTemplateHelper.type());
    return t;
  }

  /**
   * Writes the <code>ObjectReferenceTemplate[]</code> into the given stream.
   *
   * @param output the CORBA (not java.io) output stream to write.
   * @param value the value that must be written.
   */
  public static void write(OutputStream output, ObjectReferenceTemplate[] value)
  {
    output.write_long(value.length);

    for (int i = 0; i < value.length; i++)
      ObjectReferenceTemplateHelper.write(output, value[i]);
  }
}