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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 Standard Edition of the LDAP SDK, which is a complete, general-purpose library for communicating with LDAPv3 directory servers.

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/*
 * Copyright 2008-2023 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright 2008-2023 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) 2008-2023 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.unboundidds.tasks;



import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import com.unboundid.ldap.sdk.Attribute;
import com.unboundid.ldap.sdk.Entry;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.Nullable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import com.unboundid.util.args.DurationArgument;

import static com.unboundid.ldap.sdk.unboundidds.tasks.TaskMessages.*;



/**
 * This class defines a Directory Server task that can be used to back up one or
 * more Directory Server backends.
 * 

 * 

 *   NOTE:  This class, and other classes within the
 *   {@code com.unboundid.ldap.sdk.unboundidds} package structure, are only
 *   supported for use against Ping Identity, UnboundID, and
 *   Nokia/Alcatel-Lucent 8661 server products.  These classes provide support
 *   for proprietary functionality or for external specifications that are not
 *   considered stable or mature enough to be guaranteed to work in an
 *   interoperable way with other types of LDAP servers.
 * 

 * 

 * The properties that are available for use with this type of task include:
 * 
    
 *   
  • The path to the directory in which the backup should be placed.  If
 *       multiple backends are to be backed up at once, then this should be the
 *       parent of the backup directories for each backend.  This must be
 *       provided when scheduling this task.
    • 
 *   
  • The backend IDs of the backends to archive.  If this is not provided,
 *       then the server will attempt to back up all supported backends.
    • 
 *   
  • The backup ID to use for the backup.  If this is not provided, then the
 *       server will generate a backup ID.
    • 
 *   
  • A flag that indicates whether the backup should be an incremental
 *       backup (if the backend supports that capability) or a full backup.
    • 
 *   
  • The backup ID of the existing backup on which the incremental backup
 *       should be based.  If this is not provided and an incremental backup
 *       is to be performed, then it will be based on the most recent backup in
 *       the backup directory.
    • 
 *   
  • A flag that indicates whether to compress the contents of the
 *       backup.
    • 
 *   
  • A flag that indicates whether to encrypt the contents of the
 *       backup.
    • 
 *   
  • A flag that indicates whether to hash the contents of the backup to use
 *       as a checksum for verifying the integrity of the backup.
    • 
 *   
  • A flag that indicates whether to sign the backup hash in order to
 *       prevent anyone from tampering with it.
    • 
 *   
  • The path to a file containing a passphrase to use to generate the
 *       encryption key.
    • 
 *   
  • The ID of the encryption settings definition to use to generate the
 *       encryption key.
    • 
 *   
  • The maximum rate in megabytes per second at which the backup should be
 *       written.
    • 
 *   
  • The minimum number of previous full backups to retain.
    • 
 *   
  • The minimum age of previous full backups to retain.
    • 
 * 


 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class BackupTask
       extends Task
{
  /**
   * The fully-qualified name of the Java class that is used for the backup
   * task.
   */
  @NotNull static final String BACKUP_TASK_CLASS =
       "com.unboundid.directory.server.tasks.BackupTask";



  /**
   * The name of the attribute used to specify backend IDs of the backends to
   * archive.
   */
  @NotNull private static final String ATTR_BACKEND_ID =
       "ds-task-backup-backend-id";



  /**
   * The name of the attribute used to indicate whether to back up the contents
   * of all supported backends.
   */
  @NotNull private static final String ATTR_BACKUP_ALL = "ds-task-backup-all";



  /**
   * The name of the attribute used to specify the path to the directory in
   * which the backup is to be written.
   */
  @NotNull private static final String ATTR_BACKUP_DIRECTORY =
       "ds-backup-directory-path";



  /**
   * The name of the attribute used to specify the backup ID for the backup.
   */
  @NotNull private static final String ATTR_BACKUP_ID = "ds-backup-id";



  /**
   * The name of the attribute used to indicate whether to compress the backup.
   */
  @NotNull private static final String ATTR_COMPRESS =
       "ds-task-backup-compress";



  /**
   * The name of the attribute used to indicate whether to encrypt the backup.
   */
  @NotNull private static final String ATTR_ENCRYPT = "ds-task-backup-encrypt";



  /**
   * The name of the attribute used to specify the path to a file that contains
   * the passphrase to use to generate the encryption key.
   */
  @NotNull private static final String ATTR_ENCRYPTION_PASSPHRASE_FILE =
       "ds-task-backup-encryption-passphrase-file";



  /**
   * The name of the attribute used to specify the path to a file that contains
   * the ID of the encryption settings definition to use to generate the
   * encryption key.
   */
  @NotNull private static final String ATTR_ENCRYPTION_SETTINGS_DEFINITION_ID =
       "ds-task-backup-encryption-settings-definition-id";



  /**
   * The name of the attribute used to indicate whether to create a hash of the
   * backup.
   */
  @NotNull private static final String ATTR_HASH = "ds-task-backup-hash";



  /**
   * The name of the attribute used to indicate whether to perform an
   * incremental backup rather than a full backup.
   */
  @NotNull private static final String ATTR_INCREMENTAL =
       "ds-task-backup-incremental";



  /**
   * The name of the attribute used to specify the backup ID of the backup
   * on which to base the incremental backup.
   */
  @NotNull private static final String ATTR_INCREMENTAL_BASE_ID =
       "ds-task-backup-incremental-base-id";



  /**
   * The name of the attribute used to specify the maximum backup write rate in
   * megabytes per second.
   */
  @NotNull private static final String ATTR_MAX_MEGABYTES_PER_SECOND =
       "ds-task-backup-max-megabytes-per-second";



  /**
   * The name of the attribute used to specify the minimum age of previous full
   * backups to retain.
   */
  @NotNull private static final String ATTR_RETAIN_PREVIOUS_FULL_BACKUP_AGE =
       "ds-task-backup-retain-previous-full-backup-age";



  /**
   * The name of the attribute used to specify the number of previous full
   * backups to retain.
   */
  @NotNull private static final String ATTR_RETAIN_PREVIOUS_FULL_BACKUP_COUNT =
       "ds-task-backup-retain-previous-full-backup-count";



  /**
   * The name of the attribute used to indicate whether to sign the hash of the
   * backup.
   */
  @NotNull private static final String ATTR_SIGN_HASH =
       "ds-task-backup-sign-hash";



  /**
   * The name of the object class used in backup task entries.
   */
  @NotNull private static final String OC_BACKUP_TASK = "ds-task-backup";



  /**
   * The task property that will be used for the backup directory.
   */
  @NotNull private static final TaskProperty PROPERTY_BACKUP_DIRECTORY =
       new TaskProperty(ATTR_BACKUP_DIRECTORY,
            INFO_DISPLAY_NAME_BACKUP_DIRECTORY.get(),
            INFO_DESCRIPTION_BACKUP_DIRECTORY_BACKUP.get(),
            String.class, true, false, false);



  /**
   * The task property that will be used for the backend ID.
   */
  @NotNull private static final TaskProperty PROPERTY_BACKEND_ID =
       new TaskProperty(ATTR_BACKEND_ID, INFO_DISPLAY_NAME_BACKEND_ID.get(),
            INFO_DESCRIPTION_BACKEND_ID_BACKUP.get(), String.class, false, true,
            false);



  /**
   * The task property that will be used for the backup ID.
   */
  @NotNull private static final TaskProperty PROPERTY_BACKUP_ID =
       new TaskProperty(ATTR_BACKUP_ID, INFO_DISPLAY_NAME_BACKUP_ID.get(),
            INFO_DESCRIPTION_BACKUP_ID_BACKUP.get(), String.class, false, false,
            true);



  /**
   * The task property that will be used for the incremental flag.
   */
  @NotNull private static final TaskProperty PROPERTY_INCREMENTAL =
       new TaskProperty(ATTR_INCREMENTAL, INFO_DISPLAY_NAME_INCREMENTAL.get(),
            INFO_DESCRIPTION_INCREMENTAL.get(), Boolean.class, false, false,
            false);



  /**
   * The task property that will be used for the incremental base ID.
   */
  @NotNull private static final TaskProperty PROPERTY_INCREMENTAL_BASE_ID =
       new TaskProperty(ATTR_INCREMENTAL_BASE_ID,
            INFO_DISPLAY_NAME_INCREMENTAL_BASE_ID.get(),
            INFO_DESCRIPTION_INCREMENTAL_BASE_ID.get(), String.class, false,
            false, true);



  /**
   * The task property that will be used for the compress flag.
   */
  @NotNull private static final TaskProperty PROPERTY_COMPRESS =
       new TaskProperty(ATTR_COMPRESS, INFO_DISPLAY_NAME_COMPRESS.get(),
            INFO_DESCRIPTION_COMPRESS_BACKUP.get(), Boolean.class, false, false,
            false);



  /**
   * The task property that will be used for the encrypt flag.
   */
  @NotNull private static final TaskProperty PROPERTY_ENCRYPT =
       new TaskProperty(ATTR_ENCRYPT, INFO_DISPLAY_NAME_ENCRYPT.get(),
            INFO_DESCRIPTION_ENCRYPT_BACKUP.get(), Boolean.class, false, false,
            false);



  /**
   * The task property that will be used for the encryption passphrase file.
   */
  @NotNull private static final TaskProperty
       PROPERTY_ENCRYPTION_PASSPHRASE_FILE = new TaskProperty(
            ATTR_ENCRYPTION_PASSPHRASE_FILE,
            INFO_DISPLAY_NAME_ENCRYPTION_PASSPHRASE_FILE.get(),
            INFO_DESCRIPTION_ENCRYPTION_PASSPHRASE_FILE.get(),
            String.class, false, false, true);



  /**
   * The task property that will be used for the encryption settings definition
   * ID.
   */
  @NotNull private static final TaskProperty
       PROPERTY_ENCRYPTION_SETTINGS_DEFINITION_ID = new TaskProperty(
            ATTR_ENCRYPTION_SETTINGS_DEFINITION_ID,
            INFO_DISPLAY_NAME_ENCRYPTION_SETTINGS_DEFINITION_ID.get(),
            INFO_DESCRIPTION_ENCRYPTION_SETTINGS_DEFINITION_ID.get(),
            String.class, false, false, true);



  /**
   * The task property that will be used for the hash flag.
   */
  @NotNull private static final TaskProperty PROPERTY_HASH =
       new TaskProperty(ATTR_HASH, INFO_DISPLAY_NAME_HASH.get(),
            INFO_DESCRIPTION_HASH_BACKUP.get(), Boolean.class, false, false,
            false);



  /**
   * The task property that will be used for the sign hash flag.
   */
  @NotNull private static final TaskProperty PROPERTY_SIGN_HASH =
       new TaskProperty(ATTR_SIGN_HASH, INFO_DISPLAY_NAME_SIGN_HASH.get(),
            INFO_DESCRIPTION_SIGN_HASH_BACKUP.get(), Boolean.class, false,
            false, false);



  /**
   * The task property that will be used for the maximum write rate in megabytes
   * per second.
   */
  @NotNull private static final TaskProperty PROPERTY_MAX_MEGABYTES_PER_SECOND =
       new TaskProperty(ATTR_MAX_MEGABYTES_PER_SECOND,
            INFO_DISPLAY_NAME_BACKUP_MAX_MEGABYTES_PER_SECOND.get(),
            INFO_DESCRIPTION_BACKUP_MAX_MEGABYTES_PER_SECOND.get(),
            Long.class, false, false, true);



  /**
   * The task property that will be used for the retain previous full backup
   * age.
   */
  @NotNull private static final TaskProperty
       PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_AGE = new TaskProperty(
            ATTR_RETAIN_PREVIOUS_FULL_BACKUP_AGE,
            INFO_DISPLAY_NAME_BACKUP_RETAIN_AGE.get(),
            INFO_DESCRIPTION_BACKUP_RETAIN_AGE.get(),
            String.class, false, false, true);



  /**
   * The task property that will be used for the retain previous full backup
   * count.
   */
  @NotNull private static final TaskProperty
       PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_COUNT = new TaskProperty(
            ATTR_RETAIN_PREVIOUS_FULL_BACKUP_COUNT,
            INFO_DISPLAY_NAME_BACKUP_RETAIN_COUNT.get(),
            INFO_DESCRIPTION_BACKUP_RETAIN_COUNT.get(),
            Long.class, false, false, true);



  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = 2637190942057174423L;



  // Indicates whether to compress the backup.
  private final boolean compress;

  // Indicates whether to encrypt the backup.
  private final boolean encrypt;

  // Indicates whether to generate a hash of the backup.
  private final boolean hash;

  // Indicates whether to sign the backup hash.
  private final boolean signHash;

  // Indicates whether to perform an incremental backup.
  private final boolean incremental;

  // The maximum backup write rate in megabytes per second.
  @Nullable private final Integer maxMegabytesPerSecond;

  // The retain previous full backup count.
  @Nullable private final Integer retainPreviousFullBackupCount;

  // The backend IDs of the backends to back up.
  @NotNull private final List backendIDs;

  // The path to the directory in which to write the backup.
  @NotNull private final String backupDirectory;

  // The backup ID to use for the backup.
  @Nullable private final String backupID;

  // The path to a file containing the passphrase to use to generate the
  // encryption key.
  @Nullable private final String encryptionPassphraseFile;

  // The identifier for the encryption settings definition to use to generate
  // the encryption key.
  @Nullable private final String encryptionSettingsDefinitionID;

  // The backup ID of the backup to use as the base for the incremental backup.
  @Nullable private final String incrementalBaseID;

  // The retain previous full backup age.
  @Nullable private final String retainPreviousFullBackupAge;



  /**
   * Creates a new uninitialized backup task instance which should only be
   * used for obtaining general information about this task, including the task
   * name, description, and supported properties.  Attempts to use a task
   * created with this constructor for any other reason will likely fail.
   */
  public BackupTask()
  {
    compress = false;
    encrypt = false;
    hash = false;
    signHash = false;
    incremental = false;
    maxMegabytesPerSecond = null;
    retainPreviousFullBackupCount = null;
    backendIDs = null;
    backupDirectory = null;
    backupID = null;
    encryptionPassphraseFile = null;
    encryptionSettingsDefinitionID = null;
    incrementalBaseID = null;
    retainPreviousFullBackupAge = null;
  }



  /**
   * Creates a new backup task with the provided information.
   *
   * @param  taskID           The task ID to use for this task.  If it is
   *                          {@code null} then a UUID will be generated for use
   *                          as the task ID.
   * @param  backupDirectory  The path to the directory on the server into which
   *                          the backup should be written.  If a single backend
   *                          is to be archived, then this should be the path to
   *                          the specific backup directory for that backend.
   *                          If multiple backends are to be archived, then this
   *                          should be the parent of the directories for each
   *                          of the backends.  It must not be {@code null}.
   * @param  backendID        The backend ID of the backend to back up.  It may
   *                          be {@code null} if all supported backends should
   *                          be backed up.
   */
  public BackupTask(@Nullable final String taskID,
                    @NotNull final String backupDirectory,
                    @Nullable final String backendID)
  {
    this(taskID, backupDirectory,
         ((backendID == null) ? null : Collections.singletonList(backendID)),
         null, false, null, false, false, false, false, null, null, null, null,
         null);
  }



  /**
   * Creates a new restore task with the provided information.
   *
   * @param  taskID                  The task ID to use for this task.  If it is
   *                                 {@code null} then a UUID will be generated
   *                                 for use as the task ID.
   * @param  backupDirectory         The path to the directory on the server
   *                                 into which the backup should be written.
   *                                 If a single backend is to be archived, then
   *                                 this should be the path to the specific
   *                                 backup directory for that backend.  If
   *                                 multiple backends are to be archived, then
   *                                 this should be the parent of the
   *                                 directories for each of the backends.  It
   *                                 must not be {@code null}.
   * @param  backendIDs              A list of the backend IDs of the backends
   *                                 to archive.  It may be {@code null} or
   *                                 empty if all supported backends should be
   *                                 archived.
   * @param  backupID                The backup ID to use for this backup.  It
   *                                 may be {@code null} to indicate that the
   *                                 server should generate the backup ID.
   * @param  incremental             Indicates whether to perform an incremental
   *                                 backup rather than a full backup.
   * @param  incrementalBaseID       The backup ID of the existing backup on
   *                                 which to base the incremental backup.  It
   *                                 may be {@code null} if this is not an
   *                                 incremental backup or if it should be based
   *                                 on the most recent backup.
   * @param  compress                Indicates whether the backup should be
   *                                 compressed.
   * @param  encrypt                 Indicates whether the backup should be
   *                                 encrypted.
   * @param  hash                    Indicates whether to generate a hash of the
   *                                 backup contents.
   * @param  signHash                Indicates whether to sign the hash of the
   *                                 backup contents.
   * @param  scheduledStartTime      The time that this task should start
   *                                 running.
   * @param  dependencyIDs           The list of task IDs that will be required
   *                                 to complete before this task will be
   *                                 eligible to start.
   * @param  failedDependencyAction  Indicates what action should be taken if
   *                                 any of the dependencies for this task do
   *                                 not complete successfully.
   * @param  notifyOnCompletion      The list of e-mail addresses of individuals
   *                                 that should be notified when this task
   *                                 completes.
   * @param  notifyOnError           The list of e-mail addresses of individuals
   *                                 that should be notified if this task does
   *                                 not complete successfully.
   */
  public BackupTask(@Nullable final String taskID,
              @NotNull final String backupDirectory,
              @Nullable final List backendIDs,
              @Nullable final String backupID,
              final boolean incremental,
              @Nullable final String incrementalBaseID,
              final boolean compress, final boolean encrypt,
              final boolean hash, final boolean signHash,
              @Nullable final Date scheduledStartTime,
              @Nullable final List dependencyIDs,
              @Nullable final FailedDependencyAction failedDependencyAction,
              @Nullable final List notifyOnCompletion,
              @Nullable final List notifyOnError)
  {
    this(taskID, backupDirectory, backendIDs, backupID, incremental,
         incrementalBaseID, compress, encrypt, null, null, hash, signHash,
         null, null, null, scheduledStartTime, dependencyIDs,
         failedDependencyAction, notifyOnCompletion, notifyOnError);
  }



  /**
   * Creates a new restore task with the provided information.
   *
   * @param  taskID                          The task ID to use for this task.
   *                                         If it is {@code null} then a UUID
   *                                         will be generated for use as the
   *                                         task ID.
   * @param  backupDirectory                 The path to the directory on the
   *                                         server into which the backup should
   *                                         be written.  If a single backend is
   *                                         to be archived, then this should be
   *                                         the path to the specific backup
   *                                         directory for that backend.  If
   *                                         multiple backends are to be
   *                                         archived, then this should be the
   *                                         parent of the directories for each
   *                                         of the backends.  It must not be
   *                                         {@code null}.
   * @param  backendIDs                      A list of the backend IDs of the
   *                                         backends to archive.  It may be
   *                                         {@code null} or empty if all
   *                                         supported backends should be
   *                                         archived.
   * @param  backupID                        The backup ID to use for this
   *                                         backup.  It may be {@code null} to
   *                                         indicate that the server should
   *                                         generate the backup ID.
   * @param  incremental                     Indicates whether to perform an
   *                                         incremental backup rather than a
   *                                         full backup.
   * @param  incrementalBaseID               The backup ID of the existing
   *                                         backup on which to base the
   *                                         incremental backup.  It may be
   *                                         {@code null} if this is not an
   *                                         incremental backup or if it should
   *                                         be based on the most recent backup.
   * @param  compress                        Indicates whether the backup should
   *                                         be compressed.
   * @param  encrypt                         Indicates whether the backup should
   *                                         be encrypted.
   * @param  encryptionPassphraseFile        The path to a file containing the
   *                                         passphrase to use to generate the
   *                                         encryption key.  It amy be
   *                                         {@code null} if the backup is not
   *                                         to be encrypted, or if the key
   *                                         should be obtained in some other
   *                                         way.
   * @param  encryptionSettingsDefinitionID  The ID of the encryption settings
   *                                         definition use to generate the
   *                                         encryption key.  It may be
   *                                         {@code null} if the backup is not
   *                                         to be encrypted, or if the key
   *                                         should be obtained in some other
   *                                         way.
   * @param  hash                            Indicates whether to generate a
   *                                         hash of the backup contents.
   * @param  signHash                        Indicates whether to sign the hash
   *                                         of the backup contents.
   * @param  maxMegabytesPerSecond           The maximum rate in megabytes per
   *                                         second at which the backup should
   *                                         be written.
   * @param  retainPreviousFullBackupCount   The minimum number of previous
   *                                         backups to retain.
   * @param  retainPreviousFullBackupAge     A string representation of the
   *                                         minimum age of previous backups to
   *                                         retain.  The age should be
   *                                         formatted in the same way as values
   *                                         for the {@link DurationArgument}
   *                                         class.
   * @param  scheduledStartTime              The time that this task should
   *                                         start running.
   * @param  dependencyIDs                   The list of task IDs that will be
   *                                         required to complete before this
   *                                         task will be eligible to start.
   * @param  failedDependencyAction          Indicates what action should be
   *                                         taken if any of the dependencies
   *                                         for this task do not complete
   *                                         successfully.
   * @param  notifyOnCompletion              The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         when this task completes.
   * @param  notifyOnError                   The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         if this task does not complete
   *                                         successfully.
   */
  public BackupTask(@Nullable final String taskID,
              @NotNull final String backupDirectory,
              @Nullable final List backendIDs,
              @Nullable final String backupID,
              final boolean incremental,
              @Nullable final String incrementalBaseID,
              final boolean compress, final boolean encrypt,
              @Nullable final String encryptionPassphraseFile,
              @Nullable final String encryptionSettingsDefinitionID,
              final boolean hash, final boolean signHash,
              @Nullable final Integer maxMegabytesPerSecond,
              @Nullable final Integer retainPreviousFullBackupCount,
              @Nullable final String retainPreviousFullBackupAge,
              @Nullable final Date scheduledStartTime,
              @Nullable final List dependencyIDs,
              @Nullable final FailedDependencyAction failedDependencyAction,
              @Nullable final List notifyOnCompletion,
              @Nullable final List notifyOnError)
  {
    this(taskID, backupDirectory, backendIDs, backupID, incremental,
         incrementalBaseID, compress, encrypt, encryptionPassphraseFile,
         encryptionSettingsDefinitionID, hash, signHash, maxMegabytesPerSecond,
         retainPreviousFullBackupCount, retainPreviousFullBackupAge,
         scheduledStartTime, dependencyIDs, failedDependencyAction, null,
         notifyOnCompletion, null, notifyOnError, null, null, null);
  }



  /**
   * Creates a new restore task with the provided information.
   *
   * @param  taskID                          The task ID to use for this task.
   *                                         If it is {@code null} then a UUID
   *                                         will be generated for use as the
   *                                         task ID.
   * @param  backupDirectory                 The path to the directory on the
   *                                         server into which the backup should
   *                                         be written.  If a single backend is
   *                                         to be archived, then this should be
   *                                         the path to the specific backup
   *                                         directory for that backend.  If
   *                                         multiple backends are to be
   *                                         archived, then this should be the
   *                                         parent of the directories for each
   *                                         of the backends.  It must not be
   *                                         {@code null}.
   * @param  backendIDs                      A list of the backend IDs of the
   *                                         backends to archive.  It may be
   *                                         {@code null} or empty if all
   *                                         supported backends should be
   *                                         archived.
   * @param  backupID                        The backup ID to use for this
   *                                         backup.  It may be {@code null} to
   *                                         indicate that the server should
   *                                         generate the backup ID.
   * @param  incremental                     Indicates whether to perform an
   *                                         incremental backup rather than a
   *                                         full backup.
   * @param  incrementalBaseID               The backup ID of the existing
   *                                         backup on which to base the
   *                                         incremental backup.  It may be
   *                                         {@code null} if this is not an
   *                                         incremental backup or if it should
   *                                         be based on the most recent backup.
   * @param  compress                        Indicates whether the backup should
   *                                         be compressed.
   * @param  encrypt                         Indicates whether the backup should
   *                                         be encrypted.
   * @param  encryptionPassphraseFile        The path to a file containing the
   *                                         passphrase to use to generate the
   *                                         encryption key.  It amy be
   *                                         {@code null} if the backup is not
   *                                         to be encrypted, or if the key
   *                                         should be obtained in some other
   *                                         way.
   * @param  encryptionSettingsDefinitionID  The ID of the encryption settings
   *                                         definition use to generate the
   *                                         encryption key.  It may be
   *                                         {@code null} if the backup is not
   *                                         to be encrypted, or if the key
   *                                         should be obtained in some other
   *                                         way.
   * @param  hash                            Indicates whether to generate a
   *                                         hash of the backup contents.
   * @param  signHash                        Indicates whether to sign the hash
   *                                         of the backup contents.
   * @param  maxMegabytesPerSecond           The maximum rate in megabytes per
   *                                         second at which the backup should
   *                                         be written.
   * @param  retainPreviousFullBackupCount   The minimum number of previous
   *                                         backups to retain.
   * @param  retainPreviousFullBackupAge     A string representation of the
   *                                         minimum age of previous backups to
   *                                         retain.  The age should be
   *                                         formatted in the same way as values
   *                                         for the {@link DurationArgument}
   *                                         class.
   * @param  scheduledStartTime              The time that this task should
   *                                         start running.
   * @param  dependencyIDs                   The list of task IDs that will be
   *                                         required to complete before this
   *                                         task will be eligible to start.
   * @param  failedDependencyAction          Indicates what action should be
   *                                         taken if any of the dependencies
   *                                         for this task do not complete
   *                                         successfully.
   * @param  notifyOnStart                   The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         when this task starts running.
   * @param  notifyOnCompletion              The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         when this task completes.
   * @param  notifyOnSuccess                 The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         if this task completes
   *                                         successfully.
   * @param  notifyOnError                   The list of e-mail addresses of
   *                                         individuals that should be notified
   *                                         if this task does not complete
   *                                         successfully.
   * @param  alertOnStart                    Indicates whether the server should
   *                                         send an alert notification when
   *                                         this task starts.
   * @param  alertOnSuccess                  Indicates whether the server should
   *                                         send an alert notification if this
   *                                         task completes successfully.
   * @param  alertOnError                    Indicates whether the server should
   *                                         send an alert notification if this
   *                                         task fails to complete
   *                                         successfully.
   */
  public BackupTask(@Nullable final String taskID,
              @NotNull final String backupDirectory,
              @Nullable final List backendIDs,
              @Nullable final String backupID,
              final boolean incremental,
              @Nullable final String incrementalBaseID,
              final boolean compress, final boolean encrypt,
              @Nullable final String encryptionPassphraseFile,
              @Nullable final String encryptionSettingsDefinitionID,
              final boolean hash, final boolean signHash,
              @Nullable final Integer maxMegabytesPerSecond,
              @Nullable final Integer retainPreviousFullBackupCount,
              @Nullable final String retainPreviousFullBackupAge,
              @Nullable final Date scheduledStartTime,
              @Nullable final List dependencyIDs,
              @Nullable final FailedDependencyAction failedDependencyAction,
              @Nullable final List notifyOnStart,
              @Nullable final List notifyOnCompletion,
              @Nullable final List notifyOnSuccess,
              @Nullable final List notifyOnError,
              @Nullable final Boolean alertOnStart,
              @Nullable final Boolean alertOnSuccess,
              @Nullable final Boolean alertOnError)
  {
    super(taskID, BACKUP_TASK_CLASS, scheduledStartTime,
         dependencyIDs, failedDependencyAction, notifyOnStart,
         notifyOnCompletion, notifyOnSuccess,  notifyOnError, alertOnStart,
         alertOnSuccess, alertOnError);

    Validator.ensureNotNull(backupDirectory);

    this.backupDirectory = backupDirectory;
    this.backupID = backupID;
    this.incremental = incremental;
    this.incrementalBaseID = incrementalBaseID;
    this.compress = compress;
    this.encrypt = encrypt;
    this.encryptionPassphraseFile = encryptionPassphraseFile;
    this.encryptionSettingsDefinitionID = encryptionSettingsDefinitionID;
    this.hash = hash;
    this.signHash = signHash;
    this.maxMegabytesPerSecond = maxMegabytesPerSecond;
    this.retainPreviousFullBackupCount = retainPreviousFullBackupCount;
    this.retainPreviousFullBackupAge = retainPreviousFullBackupAge;

    if (backendIDs == null)
    {
      this.backendIDs = Collections.emptyList();
    }
    else
    {
      this.backendIDs = Collections.unmodifiableList(backendIDs);
    }
  }



  /**
   * Creates a new backup task from the provided entry.
   *
   * @param  entry  The entry to use to create this backup task.
   *
   * @throws  TaskException  If the provided entry cannot be parsed as a backup
   *                         task entry.
   */
  public BackupTask(@NotNull final Entry entry)
         throws TaskException
  {
    super(entry);


    // Get the backup directory.  It must be present.
    backupDirectory = entry.getAttributeValue(ATTR_BACKUP_DIRECTORY);
    if (backupDirectory == null)
    {
      throw new TaskException(ERR_BACKUP_NO_BACKUP_DIRECTORY.get(
                                   getTaskEntryDN()));
    }


    // Get the set of backend IDs.  It may be absent.
    backendIDs = parseStringList(entry, ATTR_BACKEND_ID);


    // Get the backup ID.  It may be absent.
    backupID = entry.getAttributeValue(ATTR_BACKUP_ID);


    // Get the incremental flag.  It may be absent.
    incremental = parseBooleanValue(entry, ATTR_INCREMENTAL, false);


    // Get the incremental base ID.  It may be absent.
    incrementalBaseID = entry.getAttributeValue(ATTR_INCREMENTAL_BASE_ID);


    // Determine whether to compress the backup.  It may be absent.
    compress = parseBooleanValue(entry, ATTR_COMPRESS, false);


    // Determine whether to encrypt the backup.  It may be absent.
    encrypt = parseBooleanValue(entry, ATTR_ENCRYPT, false);


    // Get the path to the encryption passphrase file.  It may be absent.
    encryptionPassphraseFile =
         entry.getAttributeValue(ATTR_ENCRYPTION_PASSPHRASE_FILE);


    // Get the encryption settings definition ID.  It may be absent.
    encryptionSettingsDefinitionID =
         entry.getAttributeValue(ATTR_ENCRYPTION_SETTINGS_DEFINITION_ID);


    // Determine whether to hash the backup.  It may be absent.
    hash = parseBooleanValue(entry, ATTR_HASH, false);


    // Determine whether to sign the hash.  It may be absent.
    signHash = parseBooleanValue(entry, ATTR_SIGN_HASH, false);


    // Get the maximum write rate in megabytes per second.  It may be absent.
    maxMegabytesPerSecond =
         entry.getAttributeValueAsInteger(ATTR_MAX_MEGABYTES_PER_SECOND);


    // Get the retain previous full backup count.  It may be absent.
    retainPreviousFullBackupCount = entry.getAttributeValueAsInteger(
         ATTR_RETAIN_PREVIOUS_FULL_BACKUP_COUNT);


    // Get the retain previous full backup age.  It may be absent.
    retainPreviousFullBackupAge = entry.getAttributeValue(
         ATTR_RETAIN_PREVIOUS_FULL_BACKUP_AGE);
  }



  /**
   * Creates a new backup task from the provided set of task properties.
   *
   * @param  properties  The set of task properties and their corresponding
   *                     values to use for the task.  It must not be
   *                     {@code null}.
   *
   * @throws  TaskException  If the provided set of properties cannot be used to
   *                         create a valid backup task.
   */
  public BackupTask(@NotNull final Map> properties)
         throws TaskException
  {
    super(BACKUP_TASK_CLASS, properties);

    boolean  c           = false;
    boolean  e           = false;
    boolean  h           = false;
    boolean  i           = false;
    boolean  s           = false;
    Integer  maxMB       = null;
    Integer  retainCount = null;
    String   bDir        = null;
    String   bkID        = null;
    String   incID       = null;
    String   encID       = null;
    String   encPWFile   = null;
    String   retainAge   = null;
    String[] beIDs       = StaticUtils.NO_STRINGS;

    for (final Map.Entry> entry :
         properties.entrySet())
    {
      final TaskProperty p = entry.getKey();
      final String attrName = p.getAttributeName();
      final List values = entry.getValue();

      if (attrName.equalsIgnoreCase(ATTR_BACKUP_DIRECTORY))
      {
        bDir = parseString(p, values, bDir);
      }
      else if (attrName.equalsIgnoreCase(ATTR_BACKEND_ID))
      {
        beIDs = parseStrings(p, values, beIDs);
      }
      else if (attrName.equalsIgnoreCase(ATTR_BACKUP_ID))
      {
        bkID = parseString(p, values, bkID);
      }
      else if (attrName.equalsIgnoreCase(ATTR_INCREMENTAL))
      {
        i = parseBoolean(p, values, i);
      }
      else if (attrName.equalsIgnoreCase(ATTR_INCREMENTAL_BASE_ID))
      {
        incID = parseString(p, values, incID);
      }
      else if (attrName.equalsIgnoreCase(ATTR_COMPRESS))
      {
        c = parseBoolean(p, values, c);
      }
      else if (attrName.equalsIgnoreCase(ATTR_ENCRYPT))
      {
        e = parseBoolean(p, values, e);
      }
      else if (attrName.equalsIgnoreCase(ATTR_ENCRYPTION_PASSPHRASE_FILE))
      {
        encPWFile = parseString(p, values, encPWFile);
      }
      else if (attrName.equalsIgnoreCase(
           ATTR_ENCRYPTION_SETTINGS_DEFINITION_ID))
      {
        encID = parseString(p, values, encID);
      }
      else if (attrName.equalsIgnoreCase(ATTR_HASH))
      {
        h = parseBoolean(p, values, h);
      }
      else if (attrName.equalsIgnoreCase(ATTR_SIGN_HASH))
      {
        s = parseBoolean(p, values, s);
      }
      else if (attrName.equalsIgnoreCase(ATTR_MAX_MEGABYTES_PER_SECOND))
      {
        final Long maxMBLong = parseLong(p, values, null);
        if (maxMBLong == null)
        {
          maxMB = null;
        }
        else
        {
          maxMB = maxMBLong.intValue();
        }
      }
      else if (attrName.equalsIgnoreCase(
           ATTR_RETAIN_PREVIOUS_FULL_BACKUP_COUNT))
      {
        final Long retainCountLong = parseLong(p, values, null);
        if (retainCountLong == null)
        {
          retainCount = null;
        }
        else
        {
          retainCount = retainCountLong.intValue();
        }
      }
      else if (attrName.equalsIgnoreCase(ATTR_RETAIN_PREVIOUS_FULL_BACKUP_AGE))
      {
        retainAge = parseString(p, values, retainAge);
      }
    }

    if (bDir == null)
    {
      throw new TaskException(ERR_BACKUP_NO_BACKUP_DIRECTORY.get(
                                   getTaskEntryDN()));
    }

    backupDirectory = bDir;
    backendIDs = Arrays.asList(beIDs);
    backupID = bkID;
    incremental = i;
    incrementalBaseID = incID;
    compress = c;
    encrypt = e;
    encryptionPassphraseFile = encPWFile;
    encryptionSettingsDefinitionID = encID;
    hash = h;
    signHash = s;
    maxMegabytesPerSecond = maxMB;
    retainPreviousFullBackupCount = retainCount;
    retainPreviousFullBackupAge = retainAge;
  }



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



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



  /**
   * Retrieves the path to the backup directory in which the backup files should
   * be written.  If a single backend is to be archived, then this will be the
   * directory in which the backup files are written.  If multiple backends are
   * to be archived, then this will be the parent of the directories containing
   * the backups for each backend.
   *
   * @return  The path to the backup directory in which the backup files should
   *          be written.
   */
  @NotNull()
  public String getBackupDirectory()
  {
    return backupDirectory;
  }



  /**
   * Indicates whether the server should back up all supported backends.
   *
   * @return  {@code true} if the server should back up all supported backends,
   *          or {@code false} if it should back up a specified backend or set
   *          of backends.
   */
  public boolean backupAll()
  {
    return backendIDs.isEmpty();
  }



  /**
   * Retrieves the set of backend IDs for the backends that should be archived.
   *
   * @return  The set of backend IDs for the backends that should be archived,
   *          or an empty list if the server should back up all supported
   *          backends.
   */
  @NotNull()
  public List getBackendIDs()
  {
    return backendIDs;
  }



  /**
   * Retrieves the backup ID for the backup to generate.
   *
   * @return  The backup ID for the backup to generate, or {@code null} if the
   *          server should generate a backup ID.
   */
  @Nullable()
  public String getBackupID()
  {
    return backupID;
  }



  /**
   * Indicates whether the server should attempt to perform an incremental
   * backup rather than a full backup.
   *
   * @return  {@code true} if the server should attempt to perform an
   *          incremental backup, or {@code false} for a full backup.
   */
  public boolean incremental()
  {
    return incremental;
  }



  /**
   * Retrieves the backup ID of the existing backup on which the incremental
   * backup should be based.
   *
   * @return  The backup ID of the existing backup on which the incremental
   *          backup should be based, or {@code null} if it is not an
   *          incremental backup or the server should use the most recent
   *          backup available as the base for the new incremental backup.
   */
  @Nullable()
  public String getIncrementalBaseID()
  {
    return incrementalBaseID;
  }



  /**
   * Indicates whether the backup should be compressed.
   *
   * @return  {@code true} if the backup should be compressed, or {@code false}
   *          if not.
   */
  public boolean compress()
  {
    return compress;
  }



  /**
   * Indicates whether the backup should be encrypted.
   *
   * @return  {@code true} if the backup should be encrypted, or {@code false}
   *          if not.
   */
  public boolean encrypt()
  {
    return encrypt;
  }



  /**
   * Retrieves the path to a file that contains the passphrase to use to
   * generate the encryption key.
   *
   * @return  The path to a file that contains the passphrase to use to
   *          generate the encryption key, or {@code null} if the backup should
   *          not be encrypted or if the encryption key should be obtained
   *          through some other means.
   */
  @Nullable()
  public String getEncryptionPassphraseFile()
  {
    return encryptionPassphraseFile;
  }



  /**
   * Retrieves the identifier of the encryption settings definition to use to
   * generate the encryption key.
   *
   * @return  The identifier of the encryption settings definition to use to
   *          generate the encryption key, or {@code null} if the backup should
   *          not be encrypted or if the encryption key should be obtained
   *          through some other means.
   */
  @Nullable()
  public String getEncryptionSettingsDefinitionID()
  {
    return encryptionSettingsDefinitionID;
  }



  /**
   * Indicates whether the server should generate a hash of the backup.
   *
   * @return  {@code true} if the server should generate a hash of the backup,
   *          or {@code false} if not.
   */
  public boolean hash()
  {
    return hash;
  }



  /**
   * Indicates whether the server should sign the backup hash.
   *
   * @return  {@code true} if the server should sign the backup hash, or
   *          {@code false} if not.
   */
  public boolean signHash()
  {
    return signHash;
  }



  /**
   * Retrieves the maximum rate, in megabytes per second, at which the backup
   * should be written.
   *
   * @return  The maximum rate, in megabytes per second, at which the backup
   *          should be written, or {@code null} if the writing should not be
   *          rate limited.
   */
  @Nullable()
  public Integer getMaxMegabytesPerSecond()
  {
    return maxMegabytesPerSecond;
  }



  /**
   * Retrieves the minimum number of previous full backups that should be
   * retained if the new backup is created successfully.
   *
   * @return  The minimum number of previous full backups that should be
   *          retained if the new backup is created successfully, or
   *          {@code null} if no backups should be removed or if the backup age
   *          should be the only retention criteria.
   */
  @Nullable()
  public Integer getRetainPreviousFullBackupCount()
  {
    return retainPreviousFullBackupCount;
  }



  /**
   * Retrieves a string representation of the minimum age of previous full
   * backups that should be retained if the new backup is created successfully.
   *
   * @return  A string representation fo the minimum age of previous full
   *          backups that should be retained if the new backup is created
   *          successfully, or {@code null} if no backups should be removed or
   *          if the backup count should be the only retention criteria.
   */
  @Nullable()
  public String getRetainPreviousFullBackupAge()
  {
    return retainPreviousFullBackupAge;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  @NotNull()
  protected List getAdditionalObjectClasses()
  {
    return Collections.singletonList(OC_BACKUP_TASK);
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  @NotNull()
  protected List getAdditionalAttributes()
  {
    final ArrayList attrs = new ArrayList<>(20);

    attrs.add(new Attribute(ATTR_BACKUP_DIRECTORY, backupDirectory));
    attrs.add(new Attribute(ATTR_INCREMENTAL,  String.valueOf(incremental)));
    attrs.add(new Attribute(ATTR_COMPRESS, String.valueOf(compress)));
    attrs.add(new Attribute(ATTR_ENCRYPT, String.valueOf(encrypt)));
    attrs.add(new Attribute(ATTR_HASH, String.valueOf(hash)));
    attrs.add(new Attribute(ATTR_SIGN_HASH, String.valueOf(signHash)));

    if (backendIDs.isEmpty())
    {
      attrs.add(new Attribute(ATTR_BACKUP_ALL, "true"));
    }
    else
    {
      attrs.add(new Attribute(ATTR_BACKEND_ID, backendIDs));
    }

    if (backupID != null)
    {
      attrs.add(new Attribute(ATTR_BACKUP_ID, backupID));
    }

    if (incrementalBaseID != null)
    {
      attrs.add(new Attribute(ATTR_INCREMENTAL_BASE_ID, incrementalBaseID));
    }

    if (encryptionPassphraseFile != null)
    {
      attrs.add(new Attribute(ATTR_ENCRYPTION_PASSPHRASE_FILE,
           encryptionPassphraseFile));
    }

    if (encryptionSettingsDefinitionID != null)
    {
      attrs.add(new Attribute(ATTR_ENCRYPTION_SETTINGS_DEFINITION_ID,
           encryptionSettingsDefinitionID));
    }

    if (maxMegabytesPerSecond != null)
    {
      attrs.add(new Attribute(ATTR_MAX_MEGABYTES_PER_SECOND,
           String.valueOf(maxMegabytesPerSecond)));
    }

    if (retainPreviousFullBackupCount != null)
    {
      attrs.add(new Attribute(ATTR_RETAIN_PREVIOUS_FULL_BACKUP_COUNT,
           String.valueOf(retainPreviousFullBackupCount)));
    }

    if (retainPreviousFullBackupAge != null)
    {
      attrs.add(new Attribute(ATTR_RETAIN_PREVIOUS_FULL_BACKUP_AGE,
           retainPreviousFullBackupAge));
    }

    return attrs;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  @NotNull()
  public List getTaskSpecificProperties()
  {
    final List propList = Arrays.asList(
         PROPERTY_BACKUP_DIRECTORY,
         PROPERTY_BACKEND_ID,
         PROPERTY_BACKUP_ID,
         PROPERTY_INCREMENTAL,
         PROPERTY_INCREMENTAL_BASE_ID,
         PROPERTY_COMPRESS,
         PROPERTY_ENCRYPT,
         PROPERTY_ENCRYPTION_PASSPHRASE_FILE,
         PROPERTY_ENCRYPTION_SETTINGS_DEFINITION_ID,
         PROPERTY_HASH,
         PROPERTY_SIGN_HASH,
         PROPERTY_MAX_MEGABYTES_PER_SECOND,
         PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_COUNT,
         PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_AGE);

    return Collections.unmodifiableList(propList);
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  @NotNull()
  public Map> getTaskPropertyValues()
  {
    final LinkedHashMap> props =
         new LinkedHashMap<>(StaticUtils.computeMapCapacity(20));

    props.put(PROPERTY_BACKUP_DIRECTORY,
         Collections.singletonList(backupDirectory));

    props.put(PROPERTY_BACKEND_ID,
              Collections.unmodifiableList(backendIDs));

    if (backupID == null)
    {
      props.put(PROPERTY_BACKUP_ID, Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_BACKUP_ID,
                Collections.singletonList(backupID));
    }

    props.put(PROPERTY_INCREMENTAL,
              Collections.singletonList(incremental));

    if (incrementalBaseID == null)
    {
      props.put(PROPERTY_INCREMENTAL_BASE_ID, Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_INCREMENTAL_BASE_ID,
                Collections.singletonList(incrementalBaseID));
    }

    props.put(PROPERTY_COMPRESS,
              Collections.singletonList(compress));

    props.put(PROPERTY_ENCRYPT,
              Collections.singletonList(encrypt));

    if (encryptionPassphraseFile == null)
    {
      props.put(PROPERTY_ENCRYPTION_PASSPHRASE_FILE, Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_ENCRYPTION_PASSPHRASE_FILE,
         Collections.singletonList(encryptionPassphraseFile));
    }

    if (encryptionSettingsDefinitionID == null)
    {
      props.put(PROPERTY_ENCRYPTION_SETTINGS_DEFINITION_ID,
           Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_ENCRYPTION_SETTINGS_DEFINITION_ID,
         Collections.singletonList(encryptionSettingsDefinitionID));
    }

    props.put(PROPERTY_HASH,
              Collections.singletonList(hash));

    props.put(PROPERTY_SIGN_HASH,
              Collections.singletonList(signHash));

    if (maxMegabytesPerSecond == null)
    {
      props.put(PROPERTY_MAX_MEGABYTES_PER_SECOND, Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_MAX_MEGABYTES_PER_SECOND,
         Collections.singletonList(maxMegabytesPerSecond.longValue()));
    }

    if (retainPreviousFullBackupCount == null)
    {
      props.put(PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_COUNT,
           Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_COUNT,
         Collections.singletonList(
              retainPreviousFullBackupCount.longValue()));
    }

    if (retainPreviousFullBackupAge == null)
    {
      props.put(PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_AGE,
           Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_RETAIN_PREVIOUS_FULL_BACKUP_AGE,
         Collections.singletonList(retainPreviousFullBackupAge));
    }

    props.putAll(super.getTaskPropertyValues());
    return Collections.unmodifiableMap(props);
  }
}
    

    

    

            

    

            



    
    






    
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