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• DraftZeilengaLDAPNoOp12RequestControl.java

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com.unboundid.ldap.sdk.experimental.DraftZeilengaLDAPNoOp12RequestControl Maven / Gradle / Ivy

/*
 * Copyright 2007-2022 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright 2007-2022 Ping Identity Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * Copyright (C) 2007-2022 Ping Identity Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License (GPLv2 only)
 * or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see .
 */
package com.unboundid.ldap.sdk.experimental;



import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;

import static com.unboundid.ldap.sdk.experimental.ExperimentalMessages.*;



/**
 * This class provides an implementation of the LDAP no-op control as defined in
 * draft-zeilenga-ldap-noop-12.  This control may be included in an add, delete,
 * modify, or modify DN request to indicate that the server should validate the
 * request but not actually make any changes to the data.  It allows the client
 * to verify that the operation would likely succeed (including schema
 * validation, access control checks, and other processing) without making any
 * changes to the server data.
 * 


 * Note that an operation which includes the no-op control will never have a
 * {@link ResultCode#SUCCESS} result.  Instead, if the operation would likely
 * have completed successfully if the no-op control had not been included, then
 * the server will include a response with the {@link ResultCode#NO_OPERATION}
 * result.  If the operation would not have been successful, then the result
 * code in the response will be the appropriate result code for that failure.
 * Note that if the response from the server includes the
 * {@link ResultCode#NO_OPERATION} result, then the LDAP SDK will not throw an
 * exception but will instead return the response in an
 * {@link com.unboundid.ldap.sdk.LDAPResult} object.  There is no corresponding
 * response control.
 * 


 * Note that at the time this control was written, the latest version of the
 * specification may be found in draft-zeilenga-ldap-noop-11.  This version of
 * the document does not explicitly specify either the OID that should be used
 * for the control, or the result code that should be used for the associated
 * operation if all other processing is completed successfully but no changes
 * are made as a result of this control.  Until such time as these are defined,
 * this implementation uses the OID temporarily assigned for its use by the
 * OpenLDAP Foundation, which is used by at least the OpenLDAP, OpenDS, and the
 * Ping Identity, UnboundID, and Nokia/Alcatel-Lucent 8661 Directory Server
 * implementations.
 * 


 * 
Example
 * The following example demonstrates the process for attempting to perform a
 * modify operation including the LDAP no-op control so that the change is not
 * actually applied:
 * 
 * ModifyRequest modifyRequest = new ModifyRequest("dc=example,dc=com",
 *      new Modification(ModificationType.REPLACE, "description",
 *           "new value"));
 * modifyRequest.addControl(new DraftZeilengaLDAPNoOp12RequestControl());
 *
 * try
 * {
 *   LDAPResult result = connection.modify(modifyRequest);
 *   if (result.getResultCode() == ResultCode.NO_OPERATION)
 *   {
 *     // The modification would likely have succeeded if the no-op control
 *     // hadn't been included in the request.
 *   }
 *   else
 *   {
 *     // The modification would likely have failed if the no-op control
 *     // hadn't been included in the request.
 *   }
 * }
 * catch (LDAPException le)
 * {
 *   // The modification failed even with the no-op control in the request.
 * }
 * 
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class DraftZeilengaLDAPNoOp12RequestControl
       extends Control
{
  /**
   * The OID (1.3.6.1.4.1.4203.1.10.2) for the LDAP no-op request control.
   */
  @NotNull public static final String NO_OP_REQUEST_OID =
       "1.3.6.1.4.1.4203.1.10.2";



  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = -7435407787971958294L;



  /**
   * Creates a new no-op request control.  It will be marked critical, as
   * required by the control specification.
   */
  public DraftZeilengaLDAPNoOp12RequestControl()
  {
    super(NO_OP_REQUEST_OID, true, null);
  }



  /**
   * Creates a new no-op request control which is decoded from the provided
   * generic control.
   *
   * @param  control  The generic control to be decoded as a no-op request
   *                  control.
   *
   * @throws  LDAPException  If the provided control cannot be decoded as a
   *                         no-op request control.
   */
  public DraftZeilengaLDAPNoOp12RequestControl(@NotNull final Control control)
         throws LDAPException
  {
    super(control);

    if (control.hasValue())
    {
      throw new LDAPException(ResultCode.DECODING_ERROR,
                              ERR_NOOP_REQUEST_HAS_VALUE.get());
    }
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  @NotNull()
  public String getControlName()
  {
    return INFO_CONTROL_NAME_NOOP_REQUEST.get();
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public void toString(@NotNull final StringBuilder buffer)
  {
    buffer.append("NoOpRequestControl(isCritical=");
    buffer.append(isCritical());
    buffer.append(')');
  }
}