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    • com.unboundid.ldap.sdk.unboundidds.tasks.ShutdownTask Maven / Gradle / Ivy

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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 2008-2016 UnboundID Corp.
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2015-2016 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.unboundidds.tasks;



import java.util.Arrays;
import java.util.ArrayList;
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.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;

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



/**
 * 
    
 *   NOTE:  This class is part of the Commercial Edition of the UnboundID
 *   LDAP SDK for Java.  It is not available for use in applications that
 *   include only the Standard Edition of the LDAP SDK, and is not supported for
 *   use in conjunction with non-UnboundID products.
 * 
    
 * This class defines a Directory Server task that can be used to shut down or
 * restart the server.  The properties that are available for use with this type
 * of task include:
 * 
      
 *   
    • A flag that indicates whether to shut down the server or to perform
 *       an in-core restart (in which the server shuts down and restarts itself
 *       within the same JVM).
      • 
 *   
    • An optional message that can be used to provide a reason for the
 *       shutdown or restart.
      • 
 * 
    
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ShutdownTask
       extends Task
{
  /**
   * The fully-qualified name of the Java class that is used for the shutdown
   * task.
   */
  static final String SHUTDOWN_TASK_CLASS =
       "com.unboundid.directory.server.tasks.ShutdownTask";



  /**
   * The name of the attribute used to define a shutdown message.
   */
  private static final String ATTR_SHUTDOWN_MESSAGE =
       "ds-task-shutdown-message";



  /**
   * The name of the attribute used to indicate whether to restart rather than
   * shut down the server.
   */
  private static final String ATTR_RESTART_SERVER =
       "ds-task-restart-server";



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



  /**
   * The task property for the shutdown message.
   */
  private static final TaskProperty PROPERTY_SHUTDOWN_MESSAGE =
       new TaskProperty(ATTR_SHUTDOWN_MESSAGE,
                        INFO_DISPLAY_NAME_SHUTDOWN_MESSAGE.get(),
                        INFO_DESCRIPTION_SHUTDOWN_MESSAGE.get(), String.class,
                        false, false, false);



  /**
   * The task property for the restart server flag.
   */
  private static final TaskProperty PROPERTY_RESTART_SERVER =
       new TaskProperty(ATTR_RESTART_SERVER,
                        INFO_DISPLAY_NAME_RESTART_SERVER.get(),
                        INFO_DESCRIPTION_RESTART_SERVER.get(), Boolean.class,
                        false, false, false);



  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = -5332685779844073667L;



  // Indicates whether to restart the server rather than shut it down.
  private final boolean restartServer;

  // A message that describes the reason for the shutdown.
  private final String shutdownMessage;



  /**
   * Creates a new uninitialized shutdown 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 ShutdownTask()
  {
    shutdownMessage = null;
    restartServer   = false;
  }



  /**
   * Creates a new shutdown 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  shutdownMessage  A message that describes the reason for the
   *                          shutdown.  It may be {@code null}.
   * @param  restartServer    Indicates whether to restart the server rather
   *                          than shut it down.
   */
  public ShutdownTask(final String taskID, final String shutdownMessage,
                      final boolean restartServer)
  {
    this(taskID, shutdownMessage, restartServer, null, null, null, null, null);
  }



  /**
   * Creates a new shutdown 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  shutdownMessage         A message that describes the reason for the
   *                                 shutdown.  It may be {@code null}.
   * @param  restartServer           Indicates whether to restart the server
   *                                 rather than shut it down.
   * @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 ShutdownTask(final String taskID, final String shutdownMessage,
                      final boolean restartServer,
                      final Date scheduledStartTime,
                      final List dependencyIDs,
                      final FailedDependencyAction failedDependencyAction,
                      final List notifyOnCompletion,
                      final List notifyOnError)
  {
    super(taskID, SHUTDOWN_TASK_CLASS, scheduledStartTime, dependencyIDs,
          failedDependencyAction, notifyOnCompletion, notifyOnError);

    this.shutdownMessage = shutdownMessage;
    this.restartServer   = restartServer;
  }



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

    // Get the shutdown message.  It may be absent.
    shutdownMessage = entry.getAttributeValue(ATTR_SHUTDOWN_MESSAGE);


    // Get the restart server flag.  It may be absent.
    restartServer = parseBooleanValue(entry, ATTR_RESTART_SERVER, false);
  }



  /**
   * Creates a new shutdown 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 shutdown task.
   */
  public ShutdownTask(final Map> properties)
         throws TaskException
  {
    super(SHUTDOWN_TASK_CLASS, properties);

    boolean r = false;
    String  m = null;

    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_SHUTDOWN_MESSAGE))
      {
        m = parseString(p, values, m);
      }
      else if (attrName.equalsIgnoreCase(ATTR_RESTART_SERVER))
      {
        r = parseBoolean(p, values, r);
      }
    }

    shutdownMessage = m;
    restartServer   = r;
  }



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



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



  /**
   * Retrieves the shutdown message that may provide a reason for or additional
   * information about the shutdown or restart.
   *
   * @return  The shutdown message, or {@code null} if there is none.
   */
  public String getShutdownMessage()
  {
    return shutdownMessage;
  }



  /**
   * Indicates whether to attempt to restart the server rather than shut it
   * down.
   *
   * @return  {@code true} if the task should attempt to restart the server, or
   *          {@code false} if it should shut it down.
   */
  public boolean restartServer()
  {
    return restartServer;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  protected List getAdditionalObjectClasses()
  {
    return Arrays.asList(OC_SHUTDOWN_TASK);
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  protected List getAdditionalAttributes()
  {
    final ArrayList attrs = new ArrayList(2);

    if (shutdownMessage != null)
    {
      attrs.add(new Attribute(ATTR_SHUTDOWN_MESSAGE, shutdownMessage));
    }

    attrs.add(new Attribute(ATTR_RESTART_SERVER,
                            String.valueOf(restartServer)));

    return attrs;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public List getTaskSpecificProperties()
  {
    final List propList = Arrays.asList(
         PROPERTY_SHUTDOWN_MESSAGE,
         PROPERTY_RESTART_SERVER);

    return Collections.unmodifiableList(propList);
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public Map> getTaskPropertyValues()
  {
    final LinkedHashMap> props =
         new LinkedHashMap>();

    if (shutdownMessage == null)
    {
      props.put(PROPERTY_SHUTDOWN_MESSAGE, Collections.emptyList());
    }
    else
    {
      props.put(PROPERTY_SHUTDOWN_MESSAGE,
                Collections.unmodifiableList(Arrays.asList(
                     shutdownMessage)));
    }

    props.put(PROPERTY_RESTART_SERVER,
              Collections.unmodifiableList(Arrays.asList(
                   restartServer)));

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

    




    
    
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