Process links
Process actions can be attached to Camunda activities through process links. Configured actions will be executed when the process reached the desired activity. This makes it possible to extend the functionality of a process beyond what Camunda offers through BPMN.
Currently, the following types of process-links are supported by Valtimo:
Form
Form-flow
Plugin
Creating process links
There are two ways of creating process links:
Manually via the UI
Using auto-deployment via the IDE
To configure process links, admin privileges are required.
Go to the
AdminmenuGo to the
Process links v2 (beta)menuSelect the activity of the desired process.
Depending on the type of activity, a list of supported process link types might be shown.
Follow the steps
Creating a form process link
A form process link can be added to user-tasks. When the process reaches the user-task, a user will be presented with the configured form when opening it.
More information about forms can be found here.
Creating a form-flow process link
A form-flow process link can be added to user-tasks. When the process reaches the user-task, an instance of the form-flow will be created and be made visible to the user.
More information about form-flows can be found here.
Creating a plugin process link
When configuring a plugin process link, a wizard is presented to choose between the available plugin configuration, actions and (optionally) additional settings for that action.
Any text fields for configuring the process link itself support several ways of providing values through value resolvers:
A fixed value. This value will be put directly into the template without alterations. For example
JohnA value retrieved from the case-data. This value should start with
doc:and should end with the path to the case-data property. For exampledoc:/firstname.A value retrieved from a process variable. This value should start with
pv:and should end with the name of the process variable. For examplepv:firstname.
Available since Valtimo 10.6.0
Process links can also be configured using auto-deployment. These process links will be created at application startup. When a conflicting configuration is found on the target activity, creation is skipped and a warning is logged in the application logs.
auto-deployed process links can be added by creating a json file with the following filename structure: <process-id>.process-link.json. This file can be placed anywhere in the resource folder of the application.
This is an example of an auto-deployment file for two user task for a process:
[
{
"activityId": "do-something",
"activityType": "bpmn:UserTask:create",
"processLinkType": "form",
"formDefinitionName": "do-something"
},
{
"activityId": "do-another-thing",
"activityType": "bpmn:UserTask:create",
"processLinkType": "form-flow",
"formFlowDefinitionId": "do-another-thing:latest"
},
{
"activityId": "delete-object-from-objectsapi",
"activityType": "bpmn:ServiceTask:start",
"processLinkType": "plugin",
"pluginConfigurationId": "7d77d894-6458-4213-8bc0-9a65d523845b",
"pluginActionDefinitionKey": "delete-object",
"actionProperties": {
"objectUrl": "pv:myObjectUrl",
"someOtherProperty": "${VALTIMO_MY_PROPERTY}"
}
}
]The auto-deployment configuration file supports environment variables such as ${VALTIMO_MY_PROPERTY}. At runtime, these placeholders are replaced with the values of the corresponding environment variables.
Important: You must explicitly whitelist which environment variables can be used in these files. Add the following to your application.yml:
valtimo:
imports:
whitelistedPaths:
- "VALTIMO_.*"
- "GZAC_.*"This ensures that only environment variables matching the given patterns are available in the deployment file.
Editing process links
Process links that have been attached to Camunda activities, can also be edited. Admin privileges are required to edit process links.
Go to the
AdminmenuGo to the
Process links v2 (beta)menuSelect the activity of the desired process.
Change the settings using the provided form
Save the new configuration by clicking on Complete
Note: It is not possible to change the type of existing process links (form, form-flow or plugin), nor is it possible to change the selected plugin configuration. To do that, please unlink the current process link and create a new one.
Unlinking process links
Process links that have been attached to Camunda activities, can also be unlinked (deleted). Admin privileges are required to unlink/delete process links.
Go to the
AdminmenuGo to the
Process links v2 (beta)menuSelect the activity of the desired process.
Click on Unlink
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