README.md

Task Assigning (Java, Quarkus, Maven)

Assign employees to tasks to produce a better plan for task assignments.

Constraints

Name	Level	Description
No missing skills	Hard	An employee must have all the required skills for their assigned task.
Minimize unassigned tasks	Soft	All tasks should be assigned to an employee.
Minimize makespan	Soft	Minimize the time until all tasks are completed.
Critical priority task end time	Soft	Critical priority tasks should be completed as early as possible.
Major priority task end time	Soft	Major priority tasks should be completed as early as possible.
Minor priority task end time	Soft	Minor priority tasks should be completed as early as possible.

• Run the application
• Run the packaged application
• Run the application in a container
• Run it native

Prerequisites

1. Install Java and Maven, for example with Sdkman:

   $ sdk install java
   $ sdk install maven

Run the application

1. Git clone the timefold-quickstarts repo and navigate to this directory:

   $ git clone https://github.com/TimefoldAI/timefold-quickstarts.git
   ...
   $ cd timefold-quickstarts/java/task-assigning

2. (Optional) If you want to run a licensed edition (Plus / Enterprise), set up your license key first. See the Timefold license tool for instructions.

3. Start the application with Maven:

   1. Community Edition

      $ mvn quarkus:dev

   2. Plus / Enterprise Edition: The profile sets up the correct Maven artifacts to run the licensed version. See the pom.xml for the implementation details.

      $ mvn quarkus:dev -Denterprise

4. Visit http://localhost:8080 in your browser.

5. Click on the Solve button.

Then try live coding:

• Make some changes in the source code.
• Refresh your browser (F5).

Notice that those changes are immediately in effect.

Run the packaged application

When you're done iterating in quarkus:dev mode, package the application to run as a conventional jar file.

1. Build it with Maven:

   $ mvn package

2. Run the Maven output:

   $ java -jar ./target/quarkus-app/quarkus-run.jar

   Note To run it on port 8081 instead, add -Dquarkus.http.port=8081.

3. Visit http://localhost:8080 in your browser.

4. Click on the Solve button.

Run the application in a container

1. Build a container image:

   $ mvn package -Dcontainer

2. Run a container:

   $ docker run -p 8080:8080 --rm $USER/task-assigning:1.0-SNAPSHOT

Run it native

To increase startup performance for serverless deployments, build the application as a native executable:

1. Install GraalVM and gu install the native-image tool.

2. Compile it natively. This takes a few minutes:

   $ mvn package -Dnative

3. Run the native executable:

   $ ./target/*-runner

4. Visit http://localhost:8080 in your browser.

5. Click on the Solve button.

More information

Visit timefold.ai.