/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014 ForgeRock AS
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*/
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package org.opends.server.backends.task;
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import org.forgerock.i18n.LocalizableMessage;
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import static org.opends.messages.TaskMessages.*;
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/**
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* This enumeration defines the various states that a task can have during its
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* lifetime.
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*/
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public enum TaskState
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{
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/**
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* The task state that indicates that the task has not yet been scheduled,
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* or possibly that the scheduler is currently not running.
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*/
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UNSCHEDULED(INFO_TASK_STATE_UNSCHEDULED.get()),
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/**
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* The task state that indicates that the task has been disabled by an
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* administrator.
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*/
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DISABLED(INFO_TASK_STATE_DISABLED.get()),
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/**
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* The task state that indicates that the task's scheduled start time has not
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* yet arrived.
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*/
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WAITING_ON_START_TIME(INFO_TASK_STATE_WAITING_ON_START_TIME.get()),
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/**
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* The task state that indicates that at least one of the task's defined
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* dependencies has not yet completed.
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*/
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WAITING_ON_DEPENDENCY(INFO_TASK_STATE_WAITING_ON_DEPENDENCY.get()),
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/**
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* The task state that indicates that the task is currently running.
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*/
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RUNNING(INFO_TASK_STATE_RUNNING.get()),
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/**
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* The task state that indicates that the task is recurring.
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*/
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RECURRING(INFO_TASK_STATE_RECURRING.get()),
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/**
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* The task state that indicates that the task has completed without any
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* errors.
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*/
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COMPLETED_SUCCESSFULLY(INFO_TASK_STATE_COMPLETED_SUCCESSFULLY.get()),
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/**
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* The task state that indicates that the task was able to complete its
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* intended goal, but that one or more errors were encountered during the
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* process.
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*/
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COMPLETED_WITH_ERRORS(INFO_TASK_STATE_COMPLETED_WITH_ERRORS.get()),
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/**
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* The task state that indicates that the task was unable to complete because
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* it was interrupted by the shutdown of the task backend.
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*/
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STOPPED_BY_SHUTDOWN(INFO_TASK_STATE_STOPPED_BY_SHUTDOWN.get()),
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/**
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* The task state that indicates that one or more errors prevented the task
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* from completing.
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*/
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STOPPED_BY_ERROR(INFO_TASK_STATE_STOPPED_BY_ERROR.get()),
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/**
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* The task state that indicates that the task was stopped by an administrator
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* after it had already started but before it was able to complete.
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*/
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STOPPED_BY_ADMINISTRATOR(INFO_TASK_STATE_STOPPED_BY_ADMINISTRATOR.get()),
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/**
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* The task state that indicates that the task was canceled by an
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* administrator before it started running.
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*/
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CANCELED_BEFORE_STARTING(INFO_TASK_STATE_CANCELED_BEFORE_STARTING.get());
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/**
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* Indicates whether a task with the specified state is currently pending
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* execution.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>true</CODE> if the stask tate indicates that the task is
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* currently pending, or <CODE>false</CODE> otherwise.
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*/
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public static boolean isPending(TaskState taskState)
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{
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switch (taskState)
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{
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case UNSCHEDULED:
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case WAITING_ON_START_TIME:
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case WAITING_ON_DEPENDENCY:
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return true;
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default:
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return false;
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}
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}
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/**
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* Indicates whether a task with the specified state is currently running.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>true</CODE> if the task state indicates that the task is
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* currently running, or <CODE>false</CODE> otherwise.
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*/
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public static boolean isRunning(TaskState taskState)
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{
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switch (taskState)
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{
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case RUNNING:
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return true;
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default:
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return false;
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}
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}
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/**
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* Indicates whether a task with the specified state is recurring.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>true</CODE> if the task state indicates that the task
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* is recurring, or <CODE>false</CODE> otherwise.
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*/
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public static boolean isRecurring(TaskState taskState)
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{
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switch (taskState)
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{
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case RECURRING:
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return true;
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default:
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return false;
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}
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}
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/**
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* Indicates whether a task with the specified state has completed all the
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* processing that it will do, regardless of whether it completed its
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* intended goal.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>false</CODE> if the task state indicates that the task has
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* not yet started or is currently running, or <CODE>true</CODE>
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* otherwise.
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*/
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public static boolean isDone(TaskState taskState)
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{
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switch (taskState)
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{
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case UNSCHEDULED:
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case WAITING_ON_START_TIME:
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case WAITING_ON_DEPENDENCY:
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case RUNNING:
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return false;
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default:
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return true;
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}
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}
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/**
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* Indicates whether a task with the specified state has been able to complete
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* its intended goal.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>true</CODE> if the task state indicates that the task
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* completed successfully or with minor errors that still allowed it
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* to achieve its goal, or <CODE>false</CODE> otherwise.
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*/
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public static boolean isSuccessful(TaskState taskState)
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{
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switch (taskState)
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{
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case WAITING_ON_START_TIME:
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case WAITING_ON_DEPENDENCY:
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case RUNNING:
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case STOPPED_BY_ERROR:
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case COMPLETED_WITH_ERRORS:
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return false;
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default:
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return true;
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}
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}
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/**
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* Indicates whether or not this task has been cancelled.
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*
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* @param taskState The task state for which to make the determination.
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*
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* @return <CODE>true</CODE> if the task state indicates that the task
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* was cancelled either before or during execution, or
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* <CODE>false</CODE> otherwise.
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*/
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public static boolean isCancelled(TaskState taskState)
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{
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switch(taskState)
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{
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case STOPPED_BY_ADMINISTRATOR:
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case CANCELED_BEFORE_STARTING:
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return true;
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default:
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return false;
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}
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}
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/**
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* Retrieves the task state that corresponds to the provided string value.
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*
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* @param s The string value for which to retrieve the corresponding task
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* state.
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*
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* @return The corresponding task state, or <CODE>null</CODE> if none could
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* be associated with the provided string.
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*/
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public static TaskState fromString(String s)
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{
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String lowerString = s.toLowerCase();
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if (lowerString.equals("unscheduled"))
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{
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return UNSCHEDULED;
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}
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else if (lowerString.equals("disabled"))
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{
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return DISABLED;
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}
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else if (lowerString.equals("waiting_on_start_time"))
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{
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return WAITING_ON_START_TIME;
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}
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else if (lowerString.equals("waiting_on_dependency"))
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{
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return WAITING_ON_DEPENDENCY;
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}
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else if (lowerString.equals("running"))
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{
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return RUNNING;
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}
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else if (lowerString.equals("recurring"))
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{
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return RECURRING;
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}
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else if (lowerString.equals("completed_successfully"))
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{
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return COMPLETED_SUCCESSFULLY;
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}
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else if (lowerString.equals("completed_with_errors"))
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{
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return COMPLETED_WITH_ERRORS;
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}
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else if (lowerString.equals("stopped_by_shutdown"))
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{
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return STOPPED_BY_SHUTDOWN;
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}
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else if (lowerString.equals("stopped_by_error"))
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{
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return STOPPED_BY_ERROR;
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}
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else if (lowerString.equals("stopped_by_administrator"))
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{
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return STOPPED_BY_ADMINISTRATOR;
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}
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else if (lowerString.equals("canceled_before_starting"))
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{
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return CANCELED_BEFORE_STARTING;
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}
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else
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{
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return null;
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}
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}
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private LocalizableMessage displayName;
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/**
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* Gets a locale sensitive representation of this state.
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*
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* @return LocalizableMessage describing state
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*/
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public LocalizableMessage getDisplayName() {
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return displayName;
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}
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private TaskState(LocalizableMessage displayName) {
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this.displayName = displayName;
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}
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}
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