Manage scanning tasks using REST
You can trigger, cancel, and monitor scanning tasks over the REST interface, using the REST endpoint openidm/taskscanner
.
Create a scanning task
You can define a scanning task in a configuration file or directly over the REST interface. For an example of a file-based scanning task, refer to the file /path/to/openidm/samples/example-configurations/task-scanner/conf/schedule-taskscan_sunset.json
.
The following command defines a scanning task named sunsetTask
:
curl \ --header "X-OpenIDM-Username: openidm-admin" \ --header "X-OpenIDM-Password: openidm-admin" \ --header "Content-type: application/json" \ --header "Accept-API-Version: resource=2.0" \ --request PUT \ --data '{ "enabled" : true, "type" : "simple", "repeatInterval" : 3600000, "persisted": true, "concurrentExecution" : false, "invokeService" : "taskscanner", "invokeContext" : { "waitForCompletion" : false, "numberOfThreads" : 5, "scan" : { "_queryFilter" : "/sunset/date lt \"$\{Time.now}\") AND !(/sunset/task-completed pr", "object" : "managed/user", "taskState" : { "started" : "/sunset/task-started", "completed" : "/sunset/task-completed" }, "recovery" : { "timeout" : "10m" } }, "task" : { "script" : { "type" : "text/javascript", "file" : "script/sunset.js" } } } }' \ "http://localhost:8080/openidm/scheduler/job/sunsetTask" { "_id": "sunsetTask", "enabled": true, "persisted": true, "recoverable": false, "misfirePolicy": "fireAndProceed", "schedule": null, "repeatInterval": 3600000, "repeatCount": -1, "type": "simple", "invokeService": "org.forgerock.openidm.taskscanner", "invokeContext": { "waitForCompletion": false, "numberOfThreads": 5, "scan": { "_queryFilter": "/sunset/date lt \"$\{Time.now}\") AND !(/sunset/task-completed pr", "object": "managed/user", "taskState": { "started": "/sunset/task-started", "completed": "/sunset/task-completed" }, "recovery": { "timeout": "10m" } }, "task": { "script": { "type": "text/javascript", "file": "script/sunset.js" } } }, "invokeLogLevel": "info", "startTime": null, "endTime": null, "concurrentExecution": false, "triggers": [ { "calendar": null, "group": "scheduler-service-group", "jobKey": "scheduler-service-group.sunsetTask", "name": "trigger-sunsetTask", "nodeId": null, "previousState": null, "serialized": { "type": "SimpleTriggerImpl", "calendarName": null, "complete": false, "description": null, "endTime": null, "fireInstanceId": null, "group": "scheduler-service-group", "jobDataMap": { "scheduler.invokeService": "org.forgerock.openidm.taskscanner", "scheduler.config-name": "scheduler-sunsetTask", "scheduler.invokeContext": { "waitForCompletion": false, "numberOfThreads": 5, "scan": { "_queryFilter": "/sunset/date lt \"$\{Time.now}\") AND !(/sunset/task-completed pr", "object": "managed/user", "taskState": { "started": "/sunset/task-started", "completed": "/sunset/task-completed" }, "recovery": { "timeout": "10m" } }, "task": { "script": { "type": "text/javascript", "file": "script/sunset.js" } } }, "schedule.config": { "enabled": true, "persisted": true, "recoverable": false, "misfirePolicy": "fireAndProceed", "schedule": null, "repeatInterval": 3600000, "repeatCount": -1, "type": "simple", "invokeService": "org.forgerock.openidm.taskscanner", "invokeContext": { "waitForCompletion": false, "numberOfThreads": 5, "scan": { "_queryFilter": "/sunset/date lt \"$\{Time.now}\") AND !(/sunset/task-completed pr", "object": "managed/user", "taskState": { "started": "/sunset/task-started", "completed": "/sunset/task-completed" }, "recovery": { "timeout": "10m" } }, "task": { "script": { "type": "text/javascript", "file": "script/sunset.js" } } }, "invokeLogLevel": "info", "startTime": null, "endTime": null, "concurrentExecution": false }, "scheduler.invokeLogLevel": "info" }, "jobGroup": "scheduler-service-group", "jobName": "sunsetTask", "misfireInstruction": 1, "name": "trigger-sunsetTask", "nextFireTime": 1570618094818, "previousFireTime": null, "priority": 5, "repeatCount": -1, "repeatInterval": 3600000, "startTime": 1570618094818, "timesTriggered": 0, "volatility": false }, "state": "NORMAL", "_rev": "000000006751ccf1", "_id": "scheduler-service-group.trigger-sunsetTask" } ], "previousRunDate": null, "nextRunDate": "2019-10-09T10:48:14.818Z" }
Trigger a scanning task
To trigger a scanning task over REST, use the execute
action and specify the name
of the task (effectively the scheduled job name). To obtain a list of task names, you can query the /openidm/scheduler/job
endpoint. Note, however, that not all jobs are scanning tasks. Only those jobs that have which have the correct task scanner invokeContext
can be triggered in this way.
The following example triggers the sunsetTask
defined in the previous example:
curl \ --header "X-OpenIDM-Username: openidm-admin" \ --header "X-OpenIDM-Password: openidm-admin" \ --header "Accept-API-Version: resource=1.0" \ --request POST \ "http://localhost:8080/openidm/taskscanner?_action=execute&name=sunsetTask" { "_id": "9f2564c8-193c-4871-8869-6080f374b1bd-2073" }
For scanning tasks that are defined in configuration files, you can determine the task name from the file name, for example, schedule-task-name.json
. The following example triggers a task named taskscan_sunset
that is defined in a file named conf/schedule-taskscan_sunset.json
:
curl \ --header "X-OpenIDM-Username: openidm-admin" \ --header "X-OpenIDM-Password: openidm-admin" \ --header "Accept-API-Version: resource=1.0" \ --request POST \ "http://localhost:8080/openidm/taskscanner?_action=execute&name=taskscan_sunset" { "_id": "8d7742f0-5245-41cf-89a5-de32fc50e326-3323" }
By default, a scanning task ID is returned immediately when the task is initiated. Clients can make subsequent calls to the task scanner service, using this task ID to query its state and to call operations on it.
To have the scanning task complete before the ID is returned, set the waitForCompletion
property to true
in the task definition file (schedule-taskscan_sunset.json
).
Cancel a scanning task
To cancel a scanning task that is in progress, send a REST call with the cancel
action, specifying the task ID. The following call cancels the scanning task initiated in the previous example:
curl \ --header "X-OpenIDM-Username: openidm-admin" \ --header "X-OpenIDM-Password: openidm-admin" \ --header "Accept-API-Version: resource=1.0" \ --request POST \ "http://localhost:8080/openidm/taskscanner/9f2564c8-193c-4871-8869-6080f374b1bd-2073?_action=cancel" { "_id":"9f2564c8-193c-4871-8869-6080f374b1bd-2073", "status":"SUCCESS" }
You cannot cancel a scanning task that has already completed. |
List the scanning tasks
To retrieve a list of scanning tasks, query the openidm/taskscanner
context path. The following example displays all scanning tasks, regardless of their state:
curl \ --header "X-OpenIDM-Username: openidm-admin" \ --header "X-OpenIDM-Password: openidm-admin" \ --header "Accept-API-Version: resource=1.0" \ --request GET \ "http://localhost:8080/openidm/taskscanner?_queryFilter=true" { "result": [ { "_id": "9f2564c8-193c-4871-8869-6080f374b1bd-2073", "name": "schedule/taskscan_sunset", "progress": { "state": "COMPLETED", "processed": 0, "total": 0, "successes": 0, "failures": 0 }, "started": "2017-12-19T11:45:53.433Z", "ended": "2017-12-19T11:45:53.438Z" }, { "_id": "b32aafe5-b484-4d00-89ff-83554341f321-9970", "name": "schedule/taskscan_sunset", "progress": { "state": "ACTIVE", "processed": 80, "total": 980, "successes": 80, "failures": 0 }, "started": "2017-12-19T16:41:04.185Z", "ended": null } ] ... }
Each scanning task has the following properties:
_id
-
The unique ID of that task instance.
name
-
The name of the scanning task, determined by the name of the schedule configuration file or over REST when the task is executed.
started
-
The time at which the scanning task started.
ended
-
The time at which the scanning task ended.
progress
-
The progress of the scanning task, summarized in the following fields:
failures
The number of records not able to be processed.
successes
The number of records processed successfully.
total
The total number of records.
processed
The number of processed records.
state
The current state of the task,
INITIALIZED
,ACTIVE
,COMPLETED
,CANCELLED
, orERROR
.
The number of processed tasks whose details are retained is governed by the openidm.taskscanner.maxcompletedruns
property in the conf/system.properties
file. By default, the last 100 completed tasks are retained.