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The UnboundID LDAP SDK for Java is a fast, comprehensive, and easy-to-use Java API for communicating with LDAP directory servers and performing related tasks like reading and writing LDIF, encoding and decoding data using base64 and ASN.1 BER, and performing secure communication. This package contains the Commercial Edition of the LDAP SDK, which includes all of the general-purpose functionality contained in the Standard Edition, plus additional functionality specific to UnboundID server products.

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/*
 * Copyright 2009-2016 UnboundID Corp.
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2009-2016 UnboundID Corp.
 *
 * 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.controls;



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.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;

import static com.unboundid.ldap.sdk.controls.ControlMessages.*;



/**
 * This class provides an implementation of the permissive modify request
 * control, which is supported by a number of servers and may be included in a
 * modify request to indicate that the server should not reject a modify
 * request which attempts to add an attribute value which already exists or
 * remove an attribute value which does not exist.  Normally, such modification
 * attempts would be rejected.
 * 


 * The OID for this control is "1.2.840.113556.1.4.1413".  It does not have a
 * value.
 * 


 * Example
 * The following example demonstrates the use of the permissive modify request
 * control to process a modification that attempts to add an attribute value
 * to an entry that already contains that value.
 *  * // Ensure that we start with a known description value in the test entry
 * // by using a replace to overwrite any existing value(s).
 * ModifyRequest replaceRequest = new ModifyRequest(
 *      "uid=test.user,ou=People,dc=example,dc=com",
 *      new Modification(ModificationType.REPLACE, "description", "value"));
 * LDAPResult replaceResult = connection.modify(replaceRequest);
 *
 * // Create a modify request that will attempt to add the value that already
 * // exists.  If we attempt to do this without the permissive modify control,
 * // the attempt should fail.
 * ModifyRequest addExistingValueRequest = new ModifyRequest(
 *      "uid=test.user,ou=People,dc=example,dc=com",
 *      new Modification(ModificationType.ADD, "description", "value"));
 * LDAPResult addExistingValueResultWithoutControl;
 * try
 * {
 *   addExistingValueResultWithoutControl =
 *        connection.modify(addExistingValueRequest);
 *   // We shouldn't get here because the attempt to add the existing value
 *   // should fail.
 * }
 * catch (LDAPException le)
 * {
 *   // We expected this failure because the value we're trying to add already
 *   // exists in the entry.
 *   addExistingValueResultWithoutControl = le.toLDAPResult();
 *   ResultCode resultCode = le.getResultCode();
 *   String errorMessageFromServer = le.getDiagnosticMessage();
 * }
 *
 * // Update the modify request to include the permissive modify request
 * // control, and re-send the request.  The operation should now succeed.
 * addExistingValueRequest.addControl(new PermissiveModifyRequestControl());
 * LDAPResult addExistingValueResultWithControl;
 * try
 * {
 *   addExistingValueResultWithControl =
 *        connection.modify(addExistingValueRequest);
 *   // If we've gotten here, then the modification was successful.
 * }
 * catch (LDAPException le)
 * {
 *   // If we've gotten here, then the modification failed for some reason.
 *   addExistingValueResultWithControl = le.toLDAPResult();
 *   ResultCode resultCode = le.getResultCode();
 *   String errorMessageFromServer = le.getDiagnosticMessage();
 * }
 * 
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class PermissiveModifyRequestControl
       extends Control
{
  /**
   * The OID (1.2.840.113556.1.4.1413) for the permissive modify request
   * control.
   */
  public static final String PERMISSIVE_MODIFY_REQUEST_OID =
       "1.2.840.113556.1.4.1413";



  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = -2599039772002106760L;



  /**
   * Creates a new permissive modify request control.  The control will not be
   * marked critical.
   */
  public PermissiveModifyRequestControl()
  {
    super(PERMISSIVE_MODIFY_REQUEST_OID, false, null);
  }



  /**
   * Creates a new permissive modify request control.
   *
   * @param  isCritical  Indicates whether the control should be marked
   *                     critical.
   */
  public PermissiveModifyRequestControl(final boolean isCritical)
  {
    super(PERMISSIVE_MODIFY_REQUEST_OID, isCritical, null);
  }



  /**
   * Creates a new permissive modify request control which is decoded from the
   * provided generic control.
   *
   * @param  control  The generic control to be decoded as a permissive modify
   *                  request control.
   *
   * @throws  LDAPException  If the provided control cannot be decoded as a
   *                         permissive modify request control.
   */
  public PermissiveModifyRequestControl(final Control control)
         throws LDAPException
  {
    super(control);

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



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



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