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1. What You Will Learn

After finishing this tutorial you will be able to use Exclusive Gateways correctly and to properly incorporate them
into your PAK Workflows in the Editor. You can download the Editor
here.

An exclusive gateway is a diversion point of a business process flow. For a given expression of the process,
only one of the paths can be taken.
ExclusiveGateway
Figure 1. Exclusive Gateway

2. Prerequisites

To complete this guide you need:

  • Roughly 10 minutes

  • Installed PAK Editor

  • Installed PAK Workflow Executor

This HowTo does not contain a detailed introduction to the editor.
Click here
to learn everything about the PAK Workflow Editor.

3. Build the workflow

First you have to create a new BPMN

Editor NewBPMN
Figure 2. Editor New BPMN
With an Exclusive Gateway, the process flow is split into one of several flows depending on the conditions.

  1. Search for the Command „ChooseItem“ under the „Commands“ tab on the left side.

    Editor ChooseItem Command
    Figure 3. Editor ChooseItem Command

  2. Add the Command to your Workflow and configure its properties as shown in the picture.

    Inputs:

    • descriptiveText: „Choose your Task“

    • issueKeyList: „1,2,3“

Editor ChooseItem Exclusive
Figure 4. Editor ChooseItem Properties

  1. Then add the Exclusive Gateway from the controls to your Workflow.

    Editor Exclusive Gateway
    Figure 5. Editor Exclusive Gateway
    The gateway does not need any further editing. The label of the gateway can be removed by clicking
    on it and deleting it from the property on the right side

  2. Create three SimpleOK tasks, connect the Exclusive Gateway with edges to the three tasks
    and configure the properties of the tasks as shown in the picture.

    Editor SimpleOK Command
    Figure 6. Editor SimpleOK Command
    In this example we create three SimpleOK tasks and rename them to Task 1, Task 2, and Task 3

  3. Add the conditions to the paths. (Learn more about pathing conditions here)

    selectedItem == "1"
Editor Exlcusive Path 1
Figure 7. Editor Exclusive Path 1
selectedItem == "2"
Editor Exclusive Path 2
Figure 8. Editor Exclusive Path 2
selectedItem == "3"
Editor Exclusive Path 3
Figure 9. Editor Exclusive Path 3

  1. Then merge the paths through another Exclusive Gateway and add an end event to the BPMN

    Editor Exclusive Gateway Example
    Figure 10. Editor Exclusive Gateway Example
In this example all paths are filled with a condition, but Exclusive Gateways also allow us to let exact one path empty. The empty path will be considered to be the default path when no other conditional path matches.
That is very useful for simple yes no conditions in which you do not want to just write the negative term of the condition e.g number == 1 and number != 1.

4. Test / Run the workflow

You can download the PAK Workflow Executor
here.
You can download the Example Workflow
here.

  1. Save your BPMN via the menu File → Save to your destination folder.

  2. Open the Workflow inside the Workflow Executor Application via the „Open new Workflow“ Button.

  3. Start the workflow with the Play Button on the right side.

Executor Exclusive Start
Figure 11. Executor Exclusive Gateway Start
Executor Exclusive ChooseItem Task
Figure 12. Executor Exclusive Gateway ChooseItem
Executor Exclusive SimpleOK
Figure 13. Executor Exclusive Gateway SimpleOK
Executor Exclusive End
Figure 14. Executor Exclusive Gateway End

5. Summary

In this tutorial we have learned to use the Exclusive Gateway with a simple workflow, and to configure
it so that it can determine the path.

Sonatype Nexus

PAK features connectors and commands for Sonatype Nexus. This means the software can directly interact with Nexus repositories for storing and managing artifacts. Through these connectors, PAK can automate tasks like uploading binaries or retrieving dependencies, ensuring efficient artifact management within Nexus.

Jenkins

PAK has connectors and commands for Jenkins. This allows the software to directly communicate with Jenkins servers, enabling the automation of CI/CD (Continuous Integration/Continuous Deployment) tasks. Through these connectors, PAK can trigger builds, fetch build statuses, or manage job configurations, streamlining the CI/CD processes within Jenkins.

Git Hub

PAK possesses connectors and commands for GitHub. This means the software can interface directly with GitHub repositories, facilitating actions like code pushes, pull requests, or issue tracking. Through these connectors, PAK can automate various GitHub operations, enhancing code collaboration and repository management.

Atlassian Confluence

PAK is equipped with connectors and commands for Atlassian Confluence. This enables the software to directly interact with Confluence spaces and pages. Through these connectors, PAK can automate actions such as creating, updating, or retrieving documentation, ensuring efficient content management and collaboration within Confluence.

Codebeamer

PAK features connectors and commands for Codebeamer. This allows the software to seamlessly integrate with Codebeamer’s ALM (Application Lifecycle Management) platform. Through these connectors, PAK can automate tasks like issue tracking, test management, or requirements tracing, enhancing the coordination and management of software development processes.

JFrog Artifactory

PAK has connectors and commands for JFrog Artifactory. This means the software can directly interface with Artifactory repositories, enabling actions like artifact storage, retrieval, and management. Through these connectors, PAK can automate tasks such as deploying artifacts or managing repository configurations, streamlining the integration and management of binary artifacts within Artifactory.

Amazon Web Services (AWS)

PAK has connectors and commands for Amazon Web Services (AWS). This means the software possesses specialized interfaces to directly interact with AWS services and execute actions on the AWS platform. Through these connectors, PAK can automate AWS-specific commands, such as launching EC2 instances, managing S3 buckets, or configuring Lambda functions. This allows for efficient integration, management, and automation of AWS resources and services directly from PAK.

Atlassian Jira

PAK features integration tools and capabilities for Atlassian Jira. These tools allow for a direct connection to Jira and the execution of specific actions. Using these integration tools, PAK can automate Jira actions such as adding comments or changing ticket priorities, ensuring seamless handling and coordination of Jira processes.

Git

PAK has connectors and commands for Git. This means it has interfaces to directly communicate with Git and execute actions. Through these connectors, the software can automate Git commands such as retrieving changes or creating branches, enabling efficient integration and management of Git tasks.

Generic Human Tasks

PAK offers you a standard set of commands which require creative input from the user. Enables you to start with automating your workflows, that still need abit of human input.

Generic Commands

PAK offers a standard set of commands giving you the first steps to automate your workflows.

Nexus Maven Command Pool

Nexus is an artifact repository manager for storing binaries, libraries, and artifacts, supporting formats like Maven. Maven, a software project management tool, is based on the Project Object Model (POM) and allows developers to consistently define projects and dependencies. Our Command Pool offers commands for interactions between Maven and Nexus, such as artifact uploads or dependency retrieval.

Artifactory Maven Command Pool

Artifactory allows developers to store, retrieve, and manage binary files and artifacts, providing a
central source for all binaries used in a development process. Apache Maven is a software project
management and comprehension tool that enables developers to consistently describe a project and
its dependencies. Our Command Pool offers a collection of commands used to facilitate interactions
between Maven and Artifactory, such as uploading artifacts or retrieving dependencies.

Open API Command Interpreter

The OpenApi Command Interpreter allows you the automatic parsing of commands from an OpenApi defintion. No additional code needs to be written anymore, just add the address to the definition and our framework does the rest!

Kotlin Command Interpreter

The Kotlin Command Interpreter allows you the parsing and execution of commands within a Kotlin environment to automate various tasks or processes.

Bpmn Interpreter

Workflows come in many shapes and forms. The BPMN (Business Process Model and Notation) Interpreter enables the parsing of worklows defined in the BPMN format into the PAK intern model.

Human Task Interpreter

The Human Task Interpreter allows you the parsing and running of commands within a HTML and Javascript environment. Use this to build commands which need the creative input of a workflow user!

Java Command Interpreter

The Java Command Interpreter allows you the parsing and execution of commands within a Java
environment to automate various tasks or processes.

Core

The heart of the PAK-Framework. Contains the means to run workflows with the PAK engine, but also the possibility to enrich the frameworks interfaces with your own implementations and solutions.

RocksDB Persistence

Data that is generated by a workflow run needs to be saved for short or longer terms. Our solution to the Persistence Interface of the PAK-Framework is to use the high-performance, key-value based RocksDB developed by Facebook.

PAK online

PAK Online is a web based application and provides an Open API based REST API. It enables you to upload workflows and run them periodically or on REST demand.

Command Line App

Run tasks and workflows on the console or as part of a CI/CD Pipeline with our Command Line Interface.

Workflow Editor

With our specially developed editor, a wide variety of workflows can be easily modeled in the wide known BPMN process format.

Workflow Executor

The Workflow Executor is the application to run your workflows. It features a multilingual UI and easy managment of your favorite workflows.

Support

We offer a community website where you can exchange ideas and support each other. For our Pro packages we also offer full support via email.