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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 2010-2018 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2015-2018 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.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.LinkedList;
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.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;

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



/**
 * This class defines a Directory Server task that can be used to cause the
 * server to generate administrative alerts, or to manage the set of degraded or
 * unavailable alert types.
 * 

 * 

 *   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 alert type of the alert notification to generate.  If this is
 *       provided, then an alert message must also be provided.
    • 
 *   
  • The alert message for the alert notification to generate.  If this is
 *       provided, then an alert type must also be provided.
    • 
 *   
  • The names of the alert types to add to the set of degraded alert types
 *       in the general monitor entry.
    • 
 *   
  • The names of the alert types to remove from the set of degraded alert
 *       types in the general monitor entry.
    • 
 *   
  • The names of the alert types to add to the set of unavailable alert
 *       types in the general monitor entry.
    • 
 *   
  • The names of the alert types to remove from the set of unavailable
 *       alert types in the general monitor entry.
    • 
 * 

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



  /**
   * The name of the attribute used to specify the alert type for the alert to
   * generate.
   */
  private static final String ATTR_ALERT_TYPE = "ds-task-alert-type";



  /**
   * The name of the attribute used to specify the message for the alert to
   * generate.
   */
  private static final String ATTR_ALERT_MESSAGE = "ds-task-alert-message";



  /**
   * The name of the attribute used to specify the alert type(s) to add to the
   * set of degraded alert types.
   */
  private static final String ATTR_ADD_DEGRADED_TYPE =
       "ds-task-alert-add-degraded-type";



  /**
   * The name of the attribute used to specify the alert type(s) to remove from
   * the set of degraded alert types.
   */
  private static final String ATTR_REMOVE_DEGRADED_TYPE =
       "ds-task-alert-remove-degraded-type";



  /**
   * The name of the attribute used to specify the alert type(s) to add to the
   * set of unavailable alert types.
   */
  private static final String ATTR_ADD_UNAVAILABLE_TYPE =
       "ds-task-alert-add-unavailable-type";



  /**
   * The name of the attribute used to specify the alert type(s) to remove from
   * the set of unavailable alert types.
   */
  private static final String ATTR_REMOVE_UNAVAILABLE_TYPE =
       "ds-task-alert-remove-unavailable-type";



  /**
   * The name of the object class used in alert task entries.
   */
  private static final String OC_ALERT_TASK = "ds-task-alert";



  /**
   * The task property that will be used for the alert type.
   */
  private static final TaskProperty PROPERTY_ALERT_TYPE =
     new TaskProperty(ATTR_ALERT_TYPE, INFO_ALERT_DISPLAY_NAME_TYPE.get(),
          INFO_ALERT_DESCRIPTION_TYPE.get(), String.class, false, false,
          false);



  /**
   * The task property that will be used for the alert message.
   */
  private static final TaskProperty PROPERTY_ALERT_MESSAGE =
     new TaskProperty(ATTR_ALERT_MESSAGE, INFO_ALERT_DISPLAY_NAME_MESSAGE.get(),
          INFO_ALERT_DESCRIPTION_MESSAGE.get(), String.class, false, false,
          false);



  /**
   * The task property that will be used for the add degraded alert types.
   */
  private static final TaskProperty PROPERTY_ADD_DEGRADED_TYPE =
     new TaskProperty(ATTR_ADD_DEGRADED_TYPE,
          INFO_ALERT_DISPLAY_NAME_ADD_DEGRADED.get(),
          INFO_ALERT_DESCRIPTION_ADD_DEGRADED.get(), String.class, false, true,
          false);



  /**
   * The task property that will be used for the remove degraded alert types.
   */
  private static final TaskProperty PROPERTY_REMOVE_DEGRADED_TYPE =
     new TaskProperty(ATTR_REMOVE_DEGRADED_TYPE,
          INFO_ALERT_DISPLAY_NAME_REMOVE_DEGRADED.get(),
          INFO_ALERT_DESCRIPTION_REMOVE_DEGRADED.get(), String.class, false,
          true, false);



  /**
   * The task property that will be used for the add unavailable alert types.
   */
  private static final TaskProperty PROPERTY_ADD_UNAVAILABLE_TYPE =
     new TaskProperty(ATTR_ADD_UNAVAILABLE_TYPE,
          INFO_ALERT_DISPLAY_NAME_ADD_UNAVAILABLE.get(),
          INFO_ALERT_DESCRIPTION_ADD_UNAVAILABLE.get(), String.class, false,
          true, false);



  /**
   * The task property that will be used for the remove unavailable alert types.
   */
  private static final TaskProperty PROPERTY_REMOVE_UNAVAILABLE_TYPE =
     new TaskProperty(ATTR_REMOVE_UNAVAILABLE_TYPE,
          INFO_ALERT_DISPLAY_NAME_REMOVE_UNAVAILABLE.get(),
          INFO_ALERT_DESCRIPTION_REMOVE_UNAVAILABLE.get(), String.class, false,
          true, false);



  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = 8253375533166941221L;



  // The alert types to add to the set of degraded alert types.
  private final List addDegradedTypes;

  // The alert types to add to the set of unavailable alert types.
  private final List addUnavailableTypes;

  // The alert types to remove from the set of degraded alert types.
  private final List removeDegradedTypes;

  // The alert types to remove from the set of unavailable alert types.
  private final List removeUnavailableTypes;

  // The message for the alert to be generated.
  private final String alertMessage;

  // The name of the alert type for the alert to be generated.
  private final String alertType;



  /**
   * Creates a new uninitialized alert 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 AlertTask()
  {
    alertType              = null;
    alertMessage           = null;
    addDegradedTypes       = null;
    addUnavailableTypes    = null;
    removeDegradedTypes    = null;
    removeUnavailableTypes = null;
  }



  /**
   * Creates a new alert task that can be used to generate an administrative
   * alert with the provided information.
   *
   * @param  alertType     The alert type to use for the generated alert.  It
   *                       must not be {@code null}.
   * @param  alertMessage  The message to use for the generated alert.  It must
   *                       not be {@code null}.
   */
  public AlertTask(final String alertType, final String alertMessage)
  {
    this(null, alertType, alertMessage, null, null, null, null, null, null,
         null, null, null);
  }



  /**
   * Creates a new alert task that can be used to generate an administrative
   * alert and/or update the set of degraded or unavailable alert types for the
   * Directory Server.  At least one element must be provided.
   *
   * @param  alertType               The alert type to use for the generated
   *                                 alert.  It may be {@code null} if no alert
   *                                 should be generated, but if it is
   *                                 non-{@code null} then the alert message
   *                                 must also be non-{@code null}.
   * @param  alertMessage            The message to use for the generated alert.
   *                                 It may be {@code null} if no alert should
   *                                 be generated, but if it is non-{@code null}
   *                                 then the alert type must also be
   *                                 non-{@code null}.
   * @param  addDegradedTypes        The names of the alert types to add to the
   *                                 Directory Server's set of degraded alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no degraded alert types should be added.
   * @param  removeDegradedTypes     The names of the alert types to remove from
   *                                 the Directory Server's set of degraded
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no degraded alert types should be
   *                                 removed.
   * @param  addUnavailableTypes     The names of the alert types to add to the
   *                                 Directory Server's set of unavailable alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no unavailable alert types should be added.
   * @param  removeUnavailableTypes  The names of the alert types to remove from
   *                                 the Directory Server's set of unavailable
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no unavailable alert types should
   *                                 be removed.
   */
  public AlertTask(final String alertType, final String alertMessage,
                   final List addDegradedTypes,
                   final List removeDegradedTypes,
                   final List addUnavailableTypes,
                   final List removeUnavailableTypes)
  {
    this(null, alertType, alertMessage, addDegradedTypes, removeDegradedTypes,
         addUnavailableTypes, removeUnavailableTypes, null, null, null,
         null, null);
  }



  /**
   * Creates a new alert task that can be used to generate an administrative
   * alert and/or update the set of degraded or unavailable alert types for the
   * Directory Server.  At least one alert-related element must be provided.
   *
   * @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  alertType               The alert type to use for the generated
   *                                 alert.  It may be {@code null} if no alert
   *                                 should be generated, but if it is
   *                                 non-{@code null} then the alert message
   *                                 must also be non-{@code null}.
   * @param  alertMessage            The message to use for the generated alert.
   *                                 It may be {@code null} if no alert should
   *                                 be generated, but if it is non-{@code null}
   *                                 then the alert type must also be
   *                                 non-{@code null}.
   * @param  addDegradedTypes        The names of the alert types to add to the
   *                                 Directory Server's set of degraded alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no degraded alert types should be added.
   * @param  removeDegradedTypes     The names of the alert types to remove from
   *                                 the Directory Server's set of degraded
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no degraded alert types should be
   *                                 removed.
   * @param  addUnavailableTypes     The names of the alert types to add to the
   *                                 Directory Server's set of unavailable alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no unavailable alert types should be added.
   * @param  removeUnavailableTypes  The names of the alert types to remove from
   *                                 the Directory Server's set of unavailable
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no unavailable alert types should
   *                                 be removed.
   * @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 AlertTask(final String taskID, final String alertType,
                   final String alertMessage,
                   final List addDegradedTypes,
                   final List removeDegradedTypes,
                   final List addUnavailableTypes,
                   final List removeUnavailableTypes,
                   final Date scheduledStartTime,
                   final List dependencyIDs,
                   final FailedDependencyAction failedDependencyAction,
                   final List notifyOnCompletion,
                   final List notifyOnError)
  {
    this(taskID, alertType, alertMessage, addDegradedTypes, removeDegradedTypes,
         addUnavailableTypes, removeUnavailableTypes, scheduledStartTime,
         dependencyIDs, failedDependencyAction, null, notifyOnCompletion, null,
         notifyOnError, null, null, null);
  }



  /**
   * Creates a new alert task that can be used to generate an administrative
   * alert and/or update the set of degraded or unavailable alert types for the
   * Directory Server.  At least one alert-related element must be provided.
   *
   * @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  alertType               The alert type to use for the generated
   *                                 alert.  It may be {@code null} if no alert
   *                                 should be generated, but if it is
   *                                 non-{@code null} then the alert message
   *                                 must also be non-{@code null}.
   * @param  alertMessage            The message to use for the generated alert.
   *                                 It may be {@code null} if no alert should
   *                                 be generated, but if it is non-{@code null}
   *                                 then the alert type must also be
   *                                 non-{@code null}.
   * @param  addDegradedTypes        The names of the alert types to add to the
   *                                 Directory Server's set of degraded alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no degraded alert types should be added.
   * @param  removeDegradedTypes     The names of the alert types to remove from
   *                                 the Directory Server's set of degraded
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no degraded alert types should be
   *                                 removed.
   * @param  addUnavailableTypes     The names of the alert types to add to the
   *                                 Directory Server's set of unavailable alert
   *                                 types.  It may be {@code null} or empty if
   *                                 no unavailable alert types should be added.
   * @param  removeUnavailableTypes  The names of the alert types to remove from
   *                                 the Directory Server's set of unavailable
   *                                 alert types.  It may be {@code null} or
   *                                 empty if no unavailable alert types should
   *                                 be removed.
   * @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 AlertTask(final String taskID, final String alertType,
                   final String alertMessage,
                   final List addDegradedTypes,
                   final List removeDegradedTypes,
                   final List addUnavailableTypes,
                   final List removeUnavailableTypes,
                   final Date scheduledStartTime,
                   final List dependencyIDs,
                   final FailedDependencyAction failedDependencyAction,
                   final List notifyOnStart,
                   final List notifyOnCompletion,
                   final List notifyOnSuccess,
                   final List notifyOnError, final Boolean alertOnStart,
                   final Boolean alertOnSuccess, final Boolean alertOnError)
  {
    super(taskID, ALERT_TASK_CLASS, scheduledStartTime, dependencyIDs,
         failedDependencyAction, notifyOnStart, notifyOnCompletion,
         notifyOnSuccess, notifyOnError, alertOnStart, alertOnSuccess,
         alertOnError);

    this.alertType    = alertType;
    this.alertMessage = alertMessage;

    Validator.ensureTrue((alertType == null) == (alertMessage == null));


    this.addDegradedTypes       = getStringList(addDegradedTypes);
    this.removeDegradedTypes    = getStringList(removeDegradedTypes);
    this.addUnavailableTypes    = getStringList(addUnavailableTypes);
    this.removeUnavailableTypes = getStringList(removeUnavailableTypes);

    if (alertType == null)
    {
      Validator.ensureFalse(this.addDegradedTypes.isEmpty() &&
           this.removeDegradedTypes.isEmpty() &&
           this.addUnavailableTypes.isEmpty() &&
           this.removeUnavailableTypes.isEmpty());
    }
  }



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


    // Get the alert type and message.  If either is present, then both must be.
    alertType    = entry.getAttributeValue(ATTR_ALERT_TYPE);
    alertMessage = entry.getAttributeValue(ATTR_ALERT_MESSAGE);

    if ((alertType == null) != (alertMessage == null))
    {
      throw new TaskException(ERR_ALERT_TYPE_AND_MESSAGE_INTERDEPENDENT.get());
    }


    // Get the values to add/remove from the degraded/unavailable alert types.
    addDegradedTypes       = parseStringList(entry, ATTR_ADD_DEGRADED_TYPE);
    removeDegradedTypes    = parseStringList(entry, ATTR_REMOVE_DEGRADED_TYPE);
    addUnavailableTypes    = parseStringList(entry, ATTR_ADD_UNAVAILABLE_TYPE);
    removeUnavailableTypes = parseStringList(entry,
         ATTR_REMOVE_UNAVAILABLE_TYPE);

    if ((alertType == null) && addDegradedTypes.isEmpty() &&
        removeDegradedTypes.isEmpty() && addUnavailableTypes.isEmpty() &&
        removeUnavailableTypes.isEmpty())
    {
      throw new TaskException(ERR_ALERT_ENTRY_NO_ELEMENTS.get());
    }
  }



  /**
   * Creates a new alert 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 alert task.
   */
  public AlertTask(final Map> properties)
         throws TaskException
  {
    super(ALERT_TASK_CLASS, properties);

    String type = null;
    String message = null;
    final LinkedList addDegraded = new LinkedList<>();
    final LinkedList removeDegraded = new LinkedList<>();
    final LinkedList addUnavailable = new LinkedList<>();
    final LinkedList removeUnavailable = new LinkedList<>();
    for (final Map.Entry> entry :
         properties.entrySet())
    {
      final TaskProperty p = entry.getKey();
      final String attrName = StaticUtils.toLowerCase(p.getAttributeName());
      final List values = entry.getValue();

      if (attrName.equals(ATTR_ALERT_TYPE))
      {
        type = parseString(p, values, type);
      }
      else if (attrName.equals(ATTR_ALERT_MESSAGE))
      {
        message = parseString(p, values, message);
      }
      else if (attrName.equals(ATTR_ADD_DEGRADED_TYPE))
      {
        final String[] s = parseStrings(p, values, null);
        if (s != null)
        {
          addDegraded.addAll(Arrays.asList(s));
        }
      }
      else if (attrName.equals(ATTR_REMOVE_DEGRADED_TYPE))
      {
        final String[] s = parseStrings(p, values, null);
        if (s != null)
        {
          removeDegraded.addAll(Arrays.asList(s));
        }
      }
      else if (attrName.equals(ATTR_ADD_UNAVAILABLE_TYPE))
      {
        final String[] s = parseStrings(p, values, null);
        if (s != null)
        {
          addUnavailable.addAll(Arrays.asList(s));
        }
      }
      else if (attrName.equals(ATTR_REMOVE_UNAVAILABLE_TYPE))
      {
        final String[] s = parseStrings(p, values, null);
        if (s != null)
        {
          removeUnavailable.addAll(Arrays.asList(s));
        }
      }
    }

    alertType              = type;
    alertMessage           = message;
    addDegradedTypes       = Collections.unmodifiableList(addDegraded);
    removeDegradedTypes    = Collections.unmodifiableList(removeDegraded);
    addUnavailableTypes    = Collections.unmodifiableList(addUnavailable);
    removeUnavailableTypes = Collections.unmodifiableList(removeUnavailable);

    if ((alertType == null) != (alertMessage == null))
    {
      throw new TaskException(ERR_ALERT_TYPE_AND_MESSAGE_INTERDEPENDENT.get());
    }

    if ((alertType == null) && addDegradedTypes.isEmpty() &&
        removeDegradedTypes.isEmpty() && addUnavailableTypes.isEmpty() &&
        removeUnavailableTypes.isEmpty())
    {
      throw new TaskException(ERR_ALERT_PROPERTIES_NO_ELEMENTS.get());
    }
  }



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



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



  /**
   * Retrieves the name of the alert type to use for the alert notification to
   * be generated, if appropriate.
   *
   * @return  The name of the alert type to use for the alert notification to be
   *          generated, or {@code null} if no alert should be generated.
   */
  public String getAlertType()
  {
    return alertType;
  }



  /**
   * Retrieves the message to use for the alert notification to be generated, if
   * appropriate.
   *
   * @return  The message to use for the alert notification to be generated, or
   *          {@code null} if no alert should be generated.
   */
  public String getAlertMessage()
  {
    return alertMessage;
  }



  /**
   * Retrieves the names of the alert types that should be added to the set of
   * degraded alert types.
   *
   * @return  The names of the alert types that should be added to the set of
   *          degraded alert types, or an empty list if no degraded alert types
   *          should be added.
   */
  public List getAddDegradedAlertTypes()
  {
    return addDegradedTypes;
  }



  /**
   * Retrieves the names of the alert types that should be removed from the set
   * of degraded alert types.
   *
   * @return  The names of the alert types that should be removed from the set
   *          of degraded alert types, or an empty list if no degraded alert
   *          types should be removed.
   */
  public List getRemoveDegradedAlertTypes()
  {
    return removeDegradedTypes;
  }



  /**
   * Retrieves the names of the alert types that should be added to the set of
   * unavailable alert types.
   *
   * @return  The names of the alert types that should be added to the set of
   *          unavailable alert types, or an empty list if no unavailable alert
   *          types should be added.
   */
  public List getAddUnavailableAlertTypes()
  {
    return addUnavailableTypes;
  }



  /**
   * Retrieves the names of the alert types that should be removed from the set
   * of unavailable alert types.
   *
   * @return  The names of the alert types that should be removed from the set
   *          of unavailable alert types, or an empty list if no unavailable
   *          alert types should be removed.
   */
  public List getRemoveUnavailableAlertTypes()
  {
    return removeUnavailableTypes;
  }



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



  /**
   * {@inheritDoc}
   */
  @Override()
  protected List getAdditionalAttributes()
  {
    final LinkedList attrList = new LinkedList<>();

    if (alertType != null)
    {
      attrList.add(new Attribute(ATTR_ALERT_TYPE, alertType));
      attrList.add(new Attribute(ATTR_ALERT_MESSAGE, alertMessage));
    }

    if (! addDegradedTypes.isEmpty())
    {
      attrList.add(new Attribute(ATTR_ADD_DEGRADED_TYPE, addDegradedTypes));
    }

    if (! removeDegradedTypes.isEmpty())
    {
      attrList.add(new Attribute(ATTR_REMOVE_DEGRADED_TYPE,
           removeDegradedTypes));
    }

    if (! addUnavailableTypes.isEmpty())
    {
      attrList.add(new Attribute(ATTR_ADD_UNAVAILABLE_TYPE,
           addUnavailableTypes));
    }

    if (! removeUnavailableTypes.isEmpty())
    {
      attrList.add(new Attribute(ATTR_REMOVE_UNAVAILABLE_TYPE,
           removeUnavailableTypes));
    }

    return attrList;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public List getTaskSpecificProperties()
  {
    return Collections.unmodifiableList(Arrays.asList(
         PROPERTY_ALERT_TYPE, PROPERTY_ALERT_MESSAGE,
         PROPERTY_ADD_DEGRADED_TYPE, PROPERTY_REMOVE_DEGRADED_TYPE,
         PROPERTY_ADD_UNAVAILABLE_TYPE, PROPERTY_REMOVE_UNAVAILABLE_TYPE));
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public Map> getTaskPropertyValues()
  {
    final LinkedHashMap> props =
         new LinkedHashMap<>(StaticUtils.computeMapCapacity(6));

    if (alertType != null)
    {
      props.put(PROPERTY_ALERT_TYPE,
           Collections.singletonList(alertType));
      props.put(PROPERTY_ALERT_MESSAGE,
           Collections.singletonList(alertMessage));
    }

    if (! addDegradedTypes.isEmpty())
    {
      props.put(PROPERTY_ADD_DEGRADED_TYPE,
           Collections.unmodifiableList(addDegradedTypes));
    }

    if (! removeDegradedTypes.isEmpty())
    {
      props.put(PROPERTY_REMOVE_DEGRADED_TYPE,
           Collections.unmodifiableList(removeDegradedTypes));
    }

    if (! addUnavailableTypes.isEmpty())
    {
      props.put(PROPERTY_ADD_UNAVAILABLE_TYPE,
           Collections.unmodifiableList(addUnavailableTypes));
    }

    if (! removeUnavailableTypes.isEmpty())
    {
      props.put(PROPERTY_REMOVE_UNAVAILABLE_TYPE,
           Collections.unmodifiableList(removeUnavailableTypes));
    }

    return Collections.unmodifiableMap(props);
  }



  /**
   * Retrieves an unmodifiable list using information from the provided list.
   * If the given list is {@code null}, then an empty list will be returned.
   * Otherwise, an unmodifiable version of the provided list will be returned.
   *
   * @param  l  The list to be processed.
   *
   * @return  The resulting string list.
   */
  private static List getStringList(final List l)
  {
    if (l == null)
    {
      return Collections.emptyList();
    }
    else
    {
      return Collections.unmodifiableList(l);
    }
  }
}
    

    

    

            

    

            



    
    






    
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