/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.backends.task;
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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,
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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,
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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,
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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,
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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,
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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,
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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,
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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,
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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,
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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,
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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;
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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 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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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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* 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("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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}
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