minwin-gcc-5-2/libjava/classpath/org/omg/CosNaming/_BindingIteratorImplBase.java

/* _BindingIteratorImplBase.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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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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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
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package org.omg.CosNaming;

import gnu.CORBA.Minor;

import org.omg.CORBA.BAD_OPERATION;
import org.omg.CORBA.BooleanHolder;
import org.omg.CORBA.CompletionStatus;
import org.omg.CORBA.DynamicImplementation;
import org.omg.CORBA.ServerRequest;
import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.InvokeHandler;
import org.omg.CORBA.portable.OutputStream;
import org.omg.CORBA.portable.ResponseHandler;
import org.omg.CORBA.portable.Streamable;

/**
 * The binding iterator implementation base.
 *
 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
 */
public abstract class _BindingIteratorImplBase
  extends DynamicImplementation
  implements BindingIterator, InvokeHandler
{
  /**
   * Use serialVersionUID (v1.4) for interoperability.
   */
  private static final long serialVersionUID = 3472591176635005503L;

  /**
   * The binding interator repository id.
   */
  private static String[] ids = { BindingIteratorHelper.id() };

  /**
   * Return the list of repository ids.
   */
  public String[] _ids()
  {
    return ids;
  }

  /**
   * Call the required method.
   */
  public OutputStream _invoke(String method, InputStream in, ResponseHandler rh)
  {
    OutputStream out = null;

    // We suppose that the next_n should be the most popular.
    if (method.equals("next_n"))
      {
        // The next_n has been invoked.
        int amount = in.read_ulong();
        BindingListHolder a_list = new BindingListHolder();

        boolean result = next_n(amount, a_list);

        out = rh.createReply();
        out.write_boolean(result);
        BindingListHelper.write(out, a_list.value);
      }
    else if (method.equals("next_one"))
      {
        // The next_one has been invoked.
        BindingHolder a_binding = new BindingHolder();

        boolean result = next_one(a_binding);

        out = rh.createReply();
        out.write_boolean(result);
        BindingHelper.write(out, a_binding.value);
      }
    else if (method.equals("destroy"))
      {
        // The destroy has been invoked.
        destroy();
        out = rh.createReply();
      }
    else
      throw new BAD_OPERATION(method, Minor.Method,
        CompletionStatus.COMPLETED_MAYBE);

    return out;
  }

  /**
   * The obsolete invocation using server request. Implemented for
   * compatibility reasons, but is it more effectinve to use
   * {@link #_invoke}.
   *
   * @param request a server request.
   */
  public void invoke(ServerRequest request)
  {
    // "destroy" has a void return type, the two other methods - boolean.
    Streamable result =
      request.operation().equals("destroy") ? null : new BooleanHolder();
    gnu.CORBA.ServiceRequestAdapter.invoke(request, this, result);
  }
}