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

The following command defines a scanning task named sunsetTask:

curl \
--header "Authorization: Bearer *token*" \
 --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 \"$\{Time.now}\") AND !($\{taskState.completed} pr",
      "object" : "managed/realm-name_user",
      "taskState" : {
        "started" : "/sunset/task-started",
        "completed" : "/sunset/task-completed"
      },
      "recovery" : {
        "timeout" : "10m"
      }
    },
    "task" : {
      "script" : {
        "type" : "text/javascript",
        "file" : "script/sunset.js"
      }
    }
  }
}' \
"https://tenant-name.forgeblocks.com/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 \"$\{Time.now}\") AND !($\{taskState.completed} pr",
      "object": "managed/realm-name_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 \"$\{Time.now}\") AND !($\{taskState.completed} pr",
              "object": "managed/realm-name_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 \"$\{Time.now}\") AND !($\{taskState.completed} pr",
                "object": "managed/realm-name_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 "Authorization: Bearer *token*" \
 --header "Accept-API-Version: resource=1.0" \
 --request POST \
 "https://tenant-name.forgeblocks.com/openidm/taskscanner?_action=execute&name=sunsetTask"
{
  "_id": "9f2564c8-193c-4871-8869-6080f374b1bd-2073"
}
 The following example triggers a task named `taskscan_sunset`
:
curl \
--header "Authorization: Bearer *token*" \
 --header "Accept-API-Version: resource=1.0" \
 --request POST \
 "https://tenant-name.forgeblocks.com/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 "Authorization: Bearer *token*" \
 --header "Accept-API-Version: resource=1.0" \
 --request POST \
 "https://tenant-name.forgeblocks.com/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 "Authorization: Bearer *token*" \
 --header "Accept-API-Version: resource=1.0" \
 --request GET \
 "https://tenant-name.forgeblocks.com/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, summarised 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, or ERROR.

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.