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Infinitic Examples

Hello World Workflow

The workflow and its implementation are described here.

The HelloWorkflow (Java, Kotlin) illustrates how to implement a simple workflow with two sequential tasks from a HelloService (Java, Kotlin)

It takes a name string as input and return "Hello $name!" using the following tasks:

  • sayHello task: Takes a name string as input and returns "Hello $name"
  • addEnthusiasm task: Takes a str string as input and returns "$str!"

Deployment

To be able to run HelloWorkflow instances:

  • Run a few HelloService workers

    • in Java (config): ./gradlew service-hello:run-java

    • and/or in Kotlin (config): ./gradlew service-hello:run-kotlin

  • Run a few HelloWorkflow workers

    • in Java (config): ./gradlew workflow-hello:run-java
    • and/or in Kotlin (config): ./gradlew workflow-hello:run-kotlin

Starting Instances

To start (code) 10 HelloWorkflow instances, run: ./gradlew common:hello-start --args 10.

The consoles should look like:

  • From the HelloService workers:
06:26:45.970 - 0190b737-c6b6-7cf3-a817-9b3708410601 - HelloService - sayHello("0")
06:26:45.970 - 0190b737-c9fc-738a-a61f-fc8e7ed13a95 - HelloService - sayHello("5")
06:26:45.970 - 0190b737-ca19-73df-b730-d6be87301d2d - HelloService - sayHello("8")
06:26:45.970 - 0190b737-ca10-7bd1-87b7-903f3f78ac32 - HelloService - sayHello("7")
06:26:45.970 - 0190b737-c9ea-7c73-ac6a-78191bdf9615 - HelloService - sayHello("2")
06:26:45.970 - 0190b737-c9f6-71bc-8d3b-44237c19404d - HelloService - sayHello("4")
06:26:45.970 - 0190b737-c9f0-7011-8f1e-caccabb83527 - HelloService - sayHello("3")
06:26:45.970 - 0190b737-ca1f-700e-ad78-62cf8ec94a48 - HelloService - sayHello("9")
06:26:45.970 - 0190b737-ca0a-7857-9564-d2cde06d4721 - HelloService - sayHello("6")
06:26:45.970 - 0190b737-c9dd-7c78-a177-2eb476a52b80 - HelloService - sayHello("1")
06:26:46.128 - 0190b737-ca10-7bd1-87b7-903f3f78ac32 - HelloService - addEnthusiasm("Hello 7")
06:26:46.137 - 0190b737-c9ea-7c73-ac6a-78191bdf9615 - HelloService - addEnthusiasm("Hello 2")
06:26:46.137 - 0190b737-c9f6-71bc-8d3b-44237c19404d - HelloService - addEnthusiasm("Hello 4")
06:26:46.137 - 0190b737-c9fc-738a-a61f-fc8e7ed13a95 - HelloService - addEnthusiasm("Hello 5")
06:26:46.137 - 0190b737-c6b6-7cf3-a817-9b3708410601 - HelloService - addEnthusiasm("Hello 0")
06:26:46.147 - 0190b737-c9dd-7c78-a177-2eb476a52b80 - HelloService - addEnthusiasm("Hello 1")
06:26:46.147 - 0190b737-ca19-73df-b730-d6be87301d2d - HelloService - addEnthusiasm("Hello 8")
06:26:46.147 - 0190b737-ca1f-700e-ad78-62cf8ec94a48 - HelloService - addEnthusiasm("Hello 9")
06:26:46.158 - 0190b737-ca0a-7857-9564-d2cde06d4721 - HelloService - addEnthusiasm("Hello 6")
06:26:46.165 - 0190b737-c9f0-7011-8f1e-caccabb83527 - HelloService - addEnthusiasm("Hello 3")
  • From the HelloWorkflow workers:
06:26:46.172 - 0190b737-ca10-7bd1-87b7-903f3f78ac32 (helloWorld) - HelloWorkflow - Hello 7!
06:26:46.172 - 0190b737-c6b6-7cf3-a817-9b3708410601 (helloWorld) - HelloWorkflow - Hello 0!
06:26:46.172 - 0190b737-c9f6-71bc-8d3b-44237c19404d (helloWorld) - HelloWorkflow - Hello 4!
06:26:46.183 - 0190b737-c9fc-738a-a61f-fc8e7ed13a95 (helloWorld) - HelloWorkflow - Hello 5!
06:26:46.183 - 0190b737-c9ea-7c73-ac6a-78191bdf9615 (helloWorld) - HelloWorkflow - Hello 2!
06:26:46.191 - 0190b737-ca1f-700e-ad78-62cf8ec94a48 (helloWorld) - HelloWorkflow - Hello 9!
06:26:46.191 - 0190b737-ca19-73df-b730-d6be87301d2d (helloWorld) - HelloWorkflow - Hello 8!
06:26:46.199 - 0190b737-c9dd-7c78-a177-2eb476a52b80 (helloWorld) - HelloWorkflow - Hello 1!
06:26:46.212 - 0190b737-ca0a-7857-9564-d2cde06d4721 (helloWorld) - HelloWorkflow - Hello 6!
06:26:46.221 - 0190b737-c9f0-7011-8f1e-caccabb83527 (helloWorld) - HelloWorkflow - Hello 3!

Canceling

To cancel (code) all HelloWorkflow instances, run: ./gradlew common:hello-cancel-all.