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cfschedule

Last updated on May 30, 2024 | Also applies to ColdFusion

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Note:

This tag is unsupported in CFFiddle.

Description

Provides a programmatic interface to the ColdFusion scheduling engine. Can run a CFML page at scheduled intervals, with the option to write the page output to a static HTML page. This feature enables you to schedule pages that publish data, such as reports, without waiting while a database transaction is performed to populate the page.

ColdFusion does not invoke Application.cfc methods, when invoking a task's event handler methods.

Syntax

<cfschedule 
action = "create|modify|run|update|pause|resume|delete|pauseall|resumeall|list" 
task = "task name" 
endDate = "date" 
endTime = "time" 
file = "filename" 
interval = "seconds" 
operation = "HTTPRequest" 
password = "password" 
path = "path to file" 
port = "port number" 
proxyPassword = "password" 
proxyPort = "port number" 
proxyServer = "host name" 
proxyUser = "user name" 
publish = "yes|no" 
resolveURL = "yes|no" 
isDaily = "yes|no" 
overwrite = "yes|no" 
startDate = "date" 
startTime = "time" 
url = "URL" 
username = "user name"> 
group="group1" 
oncomplete="how to handle exception" 
eventhandler="path_to_event_handler" 
onException="refire|pause|invokeHandler" 
cronTime="time" 
repeat="number" 
priority="integer" 
exclude="date|date_range|comma-separated_dates" 
onMisfire = "" 
cluster="yes|no 
mode="server|application" 
retryCount="number" 
OR
<cfschedule
action="create"
task = "task name">

OR 
<cfschedule 
action = "modify" 
task = "task name"> 


OR 
<cfschedule 
action = "delete" 
task = "task name"> 

OR 

<cfschedule 
action = "run" 
task = "task name"> 

OR 

<cfschedule
action = "pauseAll"
group=groupname
> 

OR

<cfschedule
action = "pauseAll"
> 

OR

<cfschedule
action = "resumeAll"
mode = "server|application"
> 

OR

<cfschedule
action = "resumeAll"
group=groupname
> 

OR

<cfschedule
action = "resumeAll"
> 


OR 

<cfschedule 
action = "list" 
mode = "server|application" 
result = "res">

Note:

You can specify this tag's attributes in an attributeCollection attribute whose value is a structure. Specify the structure name in the attributeCollection attribute and use the tag's attribute names as structure keys.

History

ColdFusion (2018 release) Update 2: Introduced the actions Create and Modify.

ColdFusion (2018 release): The attribute requestimeout is removed.

Also in the 2018 release, cfschedule action=pauseall and resumeall no longer require group or mode.

For example,

If you run <cfschedule action=" pauseall " from app1, all server and application tasks of app1 are paused.

It will not pause/ resumeall tasks of app2.

However, application boundaries still exist. App1 cannot pause/ resumeall tasks of app2 and vice-versa.

But any application can pause/ resumeall all the server level tasks.

In addition, the fire_now attribute is renamed to firenow in the 2018 release of ColdFusion.

ColdFusion (2016 release) Update 8: The following columns with an underscore are removed from the output.

LAST_FIRE
CHAINED_TASK
REMAINING_COUNT
RESOLVE_URL
RETRY_COUNT
PROXY_SERVER
PROXY_PORT
PROXY_USER

ColdFusion 10: Added the actions list, pauseall , and resumeall . Also, added the attributes group, onComplete, eventHandler, onException, cronTime , repeat, result, priority, exclude, onMisfire , cluster, mode, isDaily, overwrite, and retryCount.

ColdFusion MX 6.1: Changed the way intervals are calculated. The day length now reflects changes between standard and daylight saving times. The month length is now the calendar month length, not four weeks. The scheduler handles leap years correctly.

Note:

If you are using databases that are registered using Other as driver in ColdFusion Administrator, you must add these two properties in quartz_cluster.properties file which is located in <cfinstance>/lib/quartz:

org.quartz.dataSource.<datasourcename>.connectionProvider.class=coldfusion.scheduling.ConnectionProviderImpl
org.quartz.jobStore.dataSource=<datasourcename>

Replace <datasourcename> with the name of the datasource that is registered with ColdFusion Administrator.

Also, while registering the datasource with ColdFusion, ensure that the driver name is either MySQL/Microsoft SQL Server/Oracle, or Others.

Attributes

Note:

ColdFusion does not invoke Application.cfc methods, when invoking a task's event handler methods.

Usage

This tag and the ColdFusion Administrator Scheduled task page schedule ColdFusion tasks. Tasks that you add or change using this tag are visible in the Administrator. You can disable this tag in the Administrator Sandbox/Resource security page. This tag's success or failure status is written to the schedule.log file in the cf_root/ cfusion /logs directory (or the logs directory of another instance you may have created with the ColdFusion Enterprise Instance Manager).

When you create a task, you specify the URL of the ColdFusion page to execute, the date, time and frequency of execution, and whether to publish the task output to an HTML file. If the output is published, you specify the output file path and file.

If you have a task that is scheduled to run every day with defined start and end times (for example, 12 PM to 4 PM), along with a fixed interval (for example, every 1 minute), you can create the task from the administrator in the following manner:

On the ColdFusion Administrator, click Server Settings > Scheduled Tasks, and click Schedule New Task.

If you want to create a task that runs through the night, you can write a cron expression. For example, if your task needs to execute between 1800-0400 hours on the first of every month, use the expression,

0 0 18-4 1 * ? *

If you schedule a job to run once, the starting time is in the past, and the task has not yet run, it misfires and runs immediately.

If you schedule a recurring job with a start time in the past, ColdFusion schedules the job to run on the next closest interval in the future.The Scheduler configuration file, cf_root\lib\neo- cron . xml contains all scheduled events, as individual entries (except the clustered tasks).

The cfschedule tag also returns the following result variables in a query. You can access these variables with a prefix of the name you specified in the result attribute. For example, if you assign the name myResult to the result attribute, you can retrieve the status of the second retrieved task by accessing #myResult.status[2]#. The result attribute provides a way for functions or CFCs that are called from multiple pages, possibly at the same time, to avoid overwriting results of one call with another.

Variable name	Description
result_name.chainedtask	states whether it is a chained task
result_name.clustered	states whether the task is running in cluster mode
result_name.crontime	states the cron start time of the task
result_name.enddate	states the end date of the task
result_name.endtime	states the end time of the task
result_name.eventhandler	specifies the event handler associated with the task
result_name.exclude	specifies the date or time range excluded from the task
result_name.file	states the name of the file where the published output of task is stored
result_name.group	specifies the group to which the task belongs
result_name.interval	specifies the interval at which the task is scheduled
result_name.lastfire	states the last time the task was executed
result_name.mode	states whether the task is server-specific or application-specific
result_name.oncomplete	states the action to be taken after the task is completed. Used in chained tasks
result_name.onexception	states the action to be taken if the task ends in error
result_name.onmisfire	states the action to be taken if the task misfires
result_name.overwrite	specifies whether the output files are overwritten every time the task executes
result_name.path	specifies the location of the published file where the task output is stored
result_name.priority	indicates the priority of the task
result_name.proxyport	states the port number of the proxy server
result_name.proxyserver	states the hostname or IP address of the proxy server
result_name.proxyuser	states the username provided to the proxy server
result_name.publish	specifies whether the task results are saved to a file
result_name.remainingcount	states the number of times the task is yet to run
result_name.repeat	states the number of times a task is repeated
result_name.resolveurl	specifies whether the links in the task output page point to absolute references
result_name.retrycount	states the number of times the task was attempted
result_name.startdate	date on which the task was first scheduled
result_name.starttime	time the task is scheduled to run
result_name.status	status of the task
result_name.task	states the name of the task
result_name.timeout	specifies the task timeout time in seconds
result_name.url	states the url of the page that is executed
result_name.username	specifies the user name (in case the url of the page is protected)

Example 1

<!--- This read-only example schedules a task. 
To run the example, remove the comments around the code 
and change the startDate, startTime, url, file, and path attributes 
to appropriate values. ---> 
<cfschedule action = "update" 
task = "TaskName" 
operation = "HTTPRequest" 
url = "http://127.0.0.1/playpen/history.cfm" 
startDate = "8/17/09" 
startTime = "12:25 PM" 
interval = "3600" 
resolveURL = "Yes" 
publish = "Yes" 
file = "sample.html" 
path = "c:\inetpub\wwwroot\playpen" 
>

Example 2

handler.cfc

component implements="cfide.scheduler.ITaskEventHandler"
{
 public boolean function onTaskStart(Struct context){
  myvar="onTaskStart";
  cffile (action="append", file="#Expandpath('./')#log.txt", output="fireInstancedId:#context.fireinstanceID#, myvar: #myvar#<br>");
  return true;
  }
 public void  function Execute(Struct context){
  myvar= myvar & "Execute";
  cffile (action="append", file="#Expandpath('./')#log.txt", output="fireInstancedId:#context.fireinstanceID#, myvar: #myvar#<br>");
  }
 public void function onTaskEnd(Struct context){
  myvar=myvar & "onMisfire";
  cffile (action="append", file="#Expandpath('./')#log.txt", output="fireInstancedId:#context.fireinstanceID#, myvar: #myvar#<br>");
 }
 public void function onMisfire(Struct context){
  //FireInstance-Id would not be passed to onMisfire
 }
 public void function onError( Struct context){
  myvar= myvar & "onError";
  cffile (action="append", file="#Expandpath('./')#log.txt", output="fireInstancedId:#context.fireinstanceID#,myvar: #myvar#<br>");
      
 }
}

index.cfm

<!--- Creating Task --->
<cfschedule action="update" 
   task="fireInstanceEx"
   eventhandler="schedulerTest.handler"
   interval="once">
  
Reading log files<br/>
<cfset sleep(18000)>
<cffile action="read" file="#Expandpath('./')#log.txt" variable="res" >
  <cfoutput>#res#</cfoutput>

Example 3

<cfscript>

     cfschedule (action="create", task="myTask", group="bugTesting" ,mode="Server", url="http://google.com", startDate="24/12/2017", startTime="12:00 AM", interval ="daily")
 cfschedule(action="modify", task="myTask",group="bugTesting" ,interval="3600",startDate="25/12/2017", startTime="1:00 AM", publish="yes",path="#ExpandPath('./')#",file="task.log")
 
 cfschedule(action="list",task="myTask1",group="bugTesting",result="taskQuery")
writeoutput ("Name:" & #taskQuery.task# & " Group:" & #taskQuery.task# & " mode:" & #taskQuery.mode# & " url:" & #taskQuery.Url# & " startDate:" & #taskQuery.startDate# & " startTime:" & #taskQuery.startTime# & " interval:" & #taskQuery.interval# & " publish:" & #taskQuery.publish# & " file:" & #taskQuery.file# & "<br>");

</cfscript>

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cfschedule

Description

Category

Syntax

See also

cfcookie, cfparam, cfregistry, cfsavecontent, cfset

History

Attributes

Usage

Example 1

Example 2

Example 3

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