Executes a migration plan asynchronously (batch) for multiple process instances. To execute a migration plan synchronously, use the Execute Migration Plan method.

For more information about the difference between synchronous and asynchronous execution of a migration plan, please refer to the related section of the user guide.

Method

POST /migration/executeAsync

Parameters

Request Body

A JSON object with the following properties:

Name	Description
migrationPlan	The migration plan to execute. A JSON object corresponding to the migration plan interface in the engine as explained below.
processInstanceIds	A list of process instance ids to migrate.
processInstanceQuery	A process instance query like the request body described by POST /process-instance .
skipCustomListeners	A boolean value to control whether execution listeners should be invoked during migration.
skipIoMappings	A boolean value to control whether input/output mappings should be executed during migration.

The migration plan JSON object has the following properties:

Name	Description
sourceProcessDefinitionId	The id of the source process definition for the migration.
targetProcessDefinitionId	The id of the target process definition for the migration.
instructions	A list of migration instructions which map equal activities. Each migration instruction is a JSON object with the following properties: Name Value Description sourceActivityIds Array The activity ids from the source process definition being mapped. targetActivityIds Array The activity ids from the target process definition being mapped. updateEventTrigger Boolean Configuration flag whether event triggers defined are going to be update during migration.
variables	A map of variables which will be set into the process instances' scope. Each key is a variable name and each value a JSON variable value object with the following properties: Name Description value The variable's value. For variables of type Object, the serialized value has to be submitted as a String value. For variables of type File the value has to be submitted as Base64 encoded string. type The value type of the variable. valueInfo A JSON object containing additional, value-type-dependent properties. For serialized variables of type Object, the following properties can be provided: objectTypeName: A string representation of the object's type name. serializationDataFormat: The serialization format used to store the variable. For serialized variables of type File, the following properties can be provided: filename: The name of the file. This is not the variable name but the name that will be used when downloading the file again. mimetype: The MIME type of the file that is being uploaded. encoding: The encoding of the file that is being uploaded.

Result

A JSON object corresponding to the Batch interface in the engine. Its properties are as follows:

Name	Value	Description
id	String	The id of the batch.
type	String	The type of the batch. See the User Guide for more information about batch types.
totalJobs	Number	The total jobs of a batch is the number of batch execution jobs required to complete the batch.
jobsCreated	Number	The number of batch execution jobs already created by the seed job.
batchJobsPerSeed	Number	The number of batch execution jobs created per seed job invocation. The batch seed job is invoked until it has created all batch execution jobs required by the batch (see totalJobs property).
invocationsPerBatchJob	Number	Every batch execution job invokes the command executed by the batch invocationsPerBatchJob times. E.g., for a process instance migration batch this specifies the number of process instances which are migrated per batch execution job.
seedJobDefinitionId	String	The job definition id for the seed jobs of this batch.
monitorJobDefinitionId	String	The job definition id for the monitor jobs of this batch.
batchJobDefinitionId	String	The job definition id for the batch execution jobs of this batch.
suspended	Boolean	Indicates whether this batch is suspended or not.
tenantId	String	The tenant id of the batch.
createUserId	String	The id of the user that created the batch.

Response codes

Code	Media type	Description
200	application/json	Request successful.
400	application/json	Invalid variable value, for example if the value could not be parsed to an Integer value or the passed variable type is not supported. See the Introduction for the error response format.
400	application/json	The provided migration plan is not valid, so an exception of type MigrationPlanValidationException is returned. See the Introduction for the error response format.
400	application/json	In case additional parameters of the request are unexpected, an exception of type InvalidRequestException is returned. See the Introduction for the error response format.

Example

Request

POST /migration/executeAsync

Request Body:

{
  "migrationPlan": {
    "sourceProcessDefinitionId": "aProcessDefinitionId1",
    "targetProcessDefinitionId": "aProcessDefinitionId2",
    "instructions": [
      {
        "sourceActivityIds": ["aUserTask"],
        "targetActivityIds": ["aUserTask"]
      },
      {
        "sourceActivityIds": ["anEvent"],
        "targetActivityIds": ["anotherEvent"],
        "updateEventTrigger": true
      }
    ],
    "variables": {
      "foo": {
        "type": "Object",
        "value": "[5,9]",
        "valueInfo": {
          "objectTypeName": "java.util.ArrayList",
          "serializationDataFormat": "application/json"
        }
      }
    }
  },
  "processInstanceIds": [
    "aProcessInstance",
    "anotherProcessInstance"
  ],
  "processInstanceQuery": {
    "processDefinitionId": "aProcessDefinitionId1"
  },
  "skipCustomListeners": true
}

Response

Status 200.

{
  "id": "aBatchId",
  "type": "aBatchType",
  "totalJobs": 10,
  "batchJobsPerSeed": 100,
  "invocationsPerBatchJob": 1,
  "seedJobDefinitionId": "aSeedJobDefinitionId",
  "monitorJobDefinitionId": "aMonitorJobDefinitionId",
  "batchJobDefinitionId": "aBatchJobDefinitionId",
  "tenantId": "aTenantId"
}