Résumé
The WorkflowConnection object provides access to methods for creating or getting a Workflow Manager (Classic) job.
Discussion
Jobs are created from a job type template. All of the properties for the new job are automatically inherited from the job type and can be updated after creation using the Job methods.
Propriétés
| Propriété | Explication | Type de données |
| jtcPath (Lecture seule) | Returns the path to the workflow connection file (.jtc) in the ArcGIS Pro project. If there is an existing ArcGIS Pro connection, it will return the complete path to the workflow connection file. If a connection to the database is created using Connect, the jtcPath property can be used to get the manually entered workflow connection path for establishing the connection. | String |
Vue d’ensemble des méthodes
| Méthode | Explication |
| createJob ({job_type_id}, {job_type_name}, {job_type_description}, {callback}) | Creates a new job based on a job type. |
| createSD (output_directory, service_name, {connection_file_path}, {folder_name}, {description}, {mininstances}, {maxinstances}, {maxusagetime}, {maxwaittime}, {maxidletime}) | Creates a Service Definition (.sd) file of the Workflow Manager (Classic) service type that can be published to a specified GIS server. |
| getJob (jobID) | Return a single job using its job ID. |
| getQualifiedTableName (table_name) | Returns a fully qualified table name for a table in a Workflow Manager (Classic) database. |
| queryJobs (fields, tables, {aliases}, {where}, {order_by}) | Queries jobs based on criteria and returns a QueryResult object then allows access to a list of jobs and job properties that meet the criteria. |
Méthodes
createJob ({job_type_id}, {job_type_name}, {job_type_description}, {callback})| Paramètre | Explication | Type de données |
job_type_id | The ID of the job type from which to create a new job. | Integer |
job_type_name | The name of the job type from which to create a new job. | String |
job_type_description | The properties of the job type that can be customized and assigned to a new job being created, provided as the JobTypeDescription object. | JobTypeDescription |
callback | The callback argument is used when the job is set to automatically execute after being created. It passes a function that prompts the user for a response based on input from the step type. When executing a question step, for example, the callback takes the possible step response options and allows the user to choose the next step. It is also used when the next step in the workflow cannot be determined so a user can select the path to follow. | Function |
| Type de données | Explication |
| Job | Returns the job created as a Job. A list of Job objects is returned when multiple jobs are created by providing a list of Geometry objects in the JobTypeDescription and the LOI are not set to be unioned. |
To create a new job requires a job type name, a job type ID, or a job type description.
The following script creates two jobs in the Workflow Manager (Classic) database: one defined by the job type name and the other by the job type ID.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Create a Workflow Job of type Data Edits
job = conn.createJob(job_type_name="Data Edits")
#Create a Workflow Job of type 5
job2 = conn.createJob(job_type_id = 5)The following script creates a job in the Workflow Manager (Classic) database using the customized job type description. The customized job description provides the LOI, assigns the job to a user, assigns a data workspace to the job, assigns a parent using the ID, assigns a parent job version, adds a prefix to the job, and assigns a version for the job.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Create a polygon geometry for LOI
coordList = [[-105.0, 39.0], [-100.0, 39.0], [-100.0, 35.0], [-105.0, 35.0]]
array = arcpy.Array([arcpy.Point(x, y) for x, y in coordList])
loi = arcpy.Polygon(array)
#Create a job type description with customized properties
desc = {'LOI': 'loi', 'assignedTo':'amiller', 'assignedType': 'User', 'dataWorkspaceID':'{DB245005-0D1E-47B8-AE39-CC08530A6C9D}', 'jobTypeName':'Quality Control', 'parentJobID': '9999', 'parentVersionName': 'sde.Default', 'prefix':'QA_', 'versionName':'QA_QC'}
#Create a Workflow Job of type Quality Control
job = conn.createJob(job_type_description=desc)createSD (output_directory, service_name, {connection_file_path}, {folder_name}, {description}, {mininstances}, {maxinstances}, {maxusagetime}, {maxwaittime}, {maxidletime})| Paramètre | Explication | Type de données |
output_directory | The folder path for the the output (.sd) file. | String |
service_name | The name of the service. The name can only contain alphanumeric characters and underscores. The name cannot be more than 120 characters in length. | String |
connection_file_path | The path and file name of the ArcGIS Serverconnection file (.ags). | String |
folder_name | The folder name to which to publish the service definition. If the folder does not currently exist, it will be created. The default folder is the server root level. | String |
description | The description summary. | String |
mininstances | The minimum number of instances a service will start and make available for use. (La valeur par défaut est 1) | Integer |
maxinstances | The maximum number of instances a service can start and make available for use. (La valeur par défaut est 2) | Integer |
maxusagetime | The maximum time, in seconds, that a service can be used. For expected long running tasks increase the default time. (La valeur par défaut est 600) | Integer |
maxwaittime | The maximum time, in seconds, that a client will wait to connect with an instance before timing out. When all instances are busy processing requests, subsequent requests are queued. If this time-out elapses before an instance becomes available the task will fail. (La valeur par défaut est 60) | Integer |
maxidletime | The maximum time, in seconds, that an instance will continue to be active before pool shrinking occurs. Any instances above the minimum number of instances that have not been used will be shut down once the idle maximum time value has elapsed. | Integer |
| Type de données | Explication |
| String | The output path to the resulting .sd file. |
createSD is the first step to automating the publishing of a Workflow Manager (Classic) service type to a GIS Server using ArcPy. The output created from the createSD is a Service Definition file (.sd) representing the Workflow Manager (Classic) service type, it is a combination of information about the server and a set of service properties.
A Service Definition can be authored without knowing the specific server connection information. In this case, the connection_file_path parameter may be omitted.
Once the output Service Definition file is created it can be uploaded and published as a Workflow Manager (Classic) service to a specified GIS server using the Upload Service Definition. This takes the Service Definition file, copies it to the server, extracts the required information and publishes the GIS resource. For more information, see overview of the Publishing toolset
If using ArcGIS Pro then the specified GIS server must be federated to a portal.
Create a Workflow Manager (Classic) service definition file and publish it to a federated GIS Server.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
# Create the service definition file with connecting to the federated ArcGIS Server
conn.createSD(r'c:\test\SD','Workflow', None, 'serverfolder','service description',2,4,3000,300,2000)
# Publish the service using the service definition file
arcpy.UploadServiceDefinition_server(r'c:\test\SD\workflow.sd', 'https://servername.domain:6443/arcgis')getJob (jobID)
| Paramètre | Explication | Type de données |
jobID | The ID of the job to return. | Integer |
| Type de données | Explication |
| Job | Returns the job as a Job. |
Provides an easy way to retrieve a job.
Get a job from a Workflow Manager (Classic) database.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Access a Workflow Job
job = conn.getJob(99999)getQualifiedTableName (table_name)
| Paramètre | Explication | Type de données |
table_name | The table name to qualify. | String |
| Type de données | Explication |
| String | Returns the fully qualified table name. |
Get a fully qualified table name from a Workflow Manager (Classic) database.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Enter a tablename in the Workflow database
tablename = conn.getQualifiedTableName("Trails")queryJobs (fields, tables, {aliases}, {where}, {order_by})| Paramètre | Explication | Type de données |
fields | Fields from the query table(s) to be returned for the jobs that meet the criteria. | String |
tables | Tables in the Workflow Manager (Classic) database used to query jobs. | String |
aliases | Alias names defined by the user for the returned fields. The alias names are listed in the same order as the corresponding fields. | String |
where | A where clause used to query jobs. | String |
order_by | The fields used to order the query results. | String |
| Type de données | Explication |
| Object | QueryJobs method returns QueryResult object and allows access to the list of jobs and job properties returned by the query. |
The QueryResult object is a list of QueryRow referenced to a certain job and QueryField referenced to a certain job's property, returned from QueryJobs method.
The following script runs a query to find and print the names of jobs assigned to the current user.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Run a query for the jobs assigned to the current user and print each job name
for row in conn.queryJobs("JOB_NAME,ASSIGNED_TO","JTX_JOBS","Job Name,Assigned To", "ASSIGNED_TO = '[SYS:CUR_LOGIN]'", "JOB_NAME").rows:
print(row[0])Exemple de code
The following script creates one job and gets another from a Workflow Manager (Classic) database.
import arcpy
#Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')
#Create a Workflow Job of type Data Edits
job = conn.createJob(job_type_name="Data Edits")
#Access a Workflow Job
job = conn.getJob(99999)Vous avez un commentaire à formuler concernant cette rubrique ?