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87 changes: 87 additions & 0 deletions serverless-workflow-examples/serverless-workflow-subflows-event/README.md
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# serverless-workflow-subflow-events

This example illustrate how to trigger workflows manually with additional parameters calculated by an initial workflow.
The workflow that initially setup the parameters is executed as start state.
Then, all possible workflows that might be instantiated with those parameters are registered using `event` state. `exclusive` property is set to false ensuring that the process instance remains active till all possible workflows has been executed.

## Execution steps.

Execute main workflow

```
curl --location 'http://localhost:8080/master' \
--header 'Content-Type: application/json' \
--data '{
}'
```

This will return the id and the two properties that are configured by `setup` workflow

```
{
"id": "ad7e1081-3f05-431e-b246-d9471643fec2",
"workflowdata": {
"param1": "This is param1",
"param2": "This is param2"
}
}
```

We need to write down the id returned by the previous steps and invoke `workflowA` through a cloud event containing that id as `kogitoprocrefid` attibute.

```
curl --location 'http://localhost:8080/executeA' \
--header 'Content-Type: application/json' \
--data '{
"id" : "1",
"specversion" : "1.0",
"type" : "executeA",
"source" : "manual",
"data" : {
"param4" : "Additional parameter"
},
"kogitoprocrefid" : "ad7e1081-3f05-431e-b246-d9471643fec2"
}'
```

The execution of `workflowA` is registered in the quarkus log.

```
2024-05-14 12:09:10,306 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'Start' for process 'workflowA' (8321fbd0-64ee-4e95-91d6-957983a92325)
2024-05-14 12:09:10,306 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'doIt' for process 'workflowA' (8321fbd0-64ee-4e95-91d6-957983a92325)
2024-05-14 12:09:10,307 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Property 'workflowdata.param3' changed value from: 'null', to: '"This is workflow A"'
2024-05-14 12:09:10,307 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'End' for process 'workflowA' (8321fbd0-64ee-4e95-91d6-957983a92325)
```

The main workflow is still active, waiting for execution of workflow B. Lets execute it sending another cloud event.

```
curl --location 'http://localhost:8080/executeB' \
--header 'Content-Type: application/json' \
--data '{
"id": "1",
"specversion": "1.0",
"type": "executeB",
"source": "manual",
"data": {
"param4": "Additional parameter"
},
"kogitoprocrefid": "ad7e1081-3f05-431e-b246-d9471643fec2"
}'
```

We see in quarkus logs that workflow B is executed and that master workflow is completed, since there are not more waiting events

```
2024-05-14 12:09:10,334 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'Start' for process 'workflowB' (5a49f40d-2e54-46fb-8317-b0be12fd9f05)
2024-05-14 12:09:10,334 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'doIt' for process 'workflowB' (5a49f40d-2e54-46fb-8317-b0be12fd9f05)
2024-05-14 12:09:10,335 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Property 'workflowdata.param3' changed value from: 'null', to: '"This is workflow B"'
2024-05-14 12:09:10,335 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'End' for process 'workflowB' (5a49f40d-2e54-46fb-8317-b0be12fd9f05)
2024-05-14 12:09:10,335 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Workflow 'workflowB' (5a49f40d-2e54-46fb-8317-b0be12fd9f05) completed
2024-05-14 12:09:10,336 INFO [org.jbp.pro.cor.eve.EventTypeFilter] (kogito-event-executor-1) This event is subscribed to a message ref processInstanceCompleted:5a49f40d-2e54-46fb-8317-b0be12fd9f05 WorkflowProcessInstance [Id=5a49f40d-2e54-46fb-8317-b0be12fd9f05,processId=workflowB,state=2]
2024-05-14 12:09:10,336 INFO [org.jbp.pro.cor.eve.EventTypeFilter] (kogito-event-executor-1) This event is subscribed to a message ref processInstanceCompleted:5a49f40d-2e54-46fb-8317-b0be12fd9f05 WorkflowProcessInstance [Id=5a49f40d-2e54-46fb-8317-b0be12fd9f05,processId=workflowB,state=2]
2024-05-14 12:09:10,339 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'waitForEventsJoin' for process 'master' (0ee42b37-7106-4157-9d75-00842f1fea45)
2024-05-14 12:09:10,339 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'End' for process 'master' (0ee42b37-7106-4157-9d75-00842f1fea45)
2024-05-14 12:09:10,340 INFO [org.kie.kog.ser.wor.dev.DevModeServerlessWorkflowLogger] (kogito-event-executor-1) Triggered node 'End' for process 'master' (0ee42b37-7106-4157-9d75-00842f1fea45)
```
192 changes: 192 additions & 0 deletions serverless-workflow-examples/serverless-workflow-subflows-event/pom.xml
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<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>

<parent>
<groupId>org.kie.kogito.examples</groupId>
<artifactId>serverless-workflow-examples-parent</artifactId>
<version>999-SNAPSHOT</version>
<relativePath>../serverless-workflow-examples-parent/pom.xml</relativePath>
</parent>

<artifactId>serverless-workflow-subflows-event</artifactId>
<version>1.0-SNAPSHOT</version>

<name>Kogito Example :: Serverless Workflow Subflows Event :: Quarkus</name>
<description>Kogito Serverless Workflow Subflows Event - Quarkus</description>

<properties>
<quarkus-plugin.version>3.8.4</quarkus-plugin.version>
<quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
<quarkus.platform.group-id>io.quarkus</quarkus.platform.group-id>
<quarkus.platform.version>3.8.4</quarkus.platform.version>
<kogito.bom.group-id>org.kie.kogito</kogito.bom.group-id>
<kogito.bom.artifact-id>kogito-bom</kogito.bom.artifact-id>
<kogito.bom.version>999-SNAPSHOT</kogito.bom.version>
<version.org.kie.kogito>999-SNAPSHOT</version.org.kie.kogito>
<maven.compiler.release>17</maven.compiler.release>
<version.compiler.plugin>3.8.1</version.compiler.plugin>
<version.surefire.plugin>3.0.0-M7</version.surefire.plugin>
<version.failsafe.plugin>${version.surefire.plugin}</version.failsafe.plugin>
</properties>

<dependencyManagement>
<dependencies>
<dependency>
<groupId>${quarkus.platform.group-id}</groupId>
<artifactId>${quarkus.platform.artifact-id}</artifactId>
<version>${quarkus.platform.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>${kogito.bom.group-id}</groupId>
<artifactId>${kogito.bom.artifact-id}</artifactId>
<version>${kogito.bom.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.kie.sonataflow</groupId>
<artifactId>sonataflow-quarkus</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-resteasy-jackson</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-arc</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-resteasy</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-smallrye-openapi</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-junit5</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>rest-assured</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>${version.compiler.plugin}</version>
<configuration>
<release>${maven.compiler.release}</release>
</configuration>
</plugin>
<plugin>
<groupId>${quarkus.platform.group-id}</groupId>
<artifactId>quarkus-maven-plugin</artifactId>
<version>${quarkus-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>build</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>${version.surefire.plugin}</version>
<configuration>
<systemPropertyVariables>
<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
<maven.home>${maven.home}</maven.home>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>${version.failsafe.plugin}</version>
<configuration>
<systemPropertyVariables>
<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
<maven.home>${maven.home}</maven.home>
</systemPropertyVariables>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>container</id>
<activation>
<property>
<name>container</name>
</property>
</activation>
<properties>
<quarkus.profile>container</quarkus.profile>
</properties>
<dependencies>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-container-image-jib</artifactId>
</dependency>
</dependencies>
</profile>
<profile>
<id>native</id>
<activation>
<property>
<name>native</name>
</property>
</activation>
<properties>
<quarkus.package.type>native</quarkus.package.type>
</properties>
</profile>
</profiles>
</project>
33 changes: 33 additions & 0 deletions ...low-examples/serverless-workflow-subflows-event/src/main/resources/application.properties
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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.

quarkus.devservices.enabled=false
#

mp.messaging.incoming.executeA.connector=quarkus-http
mp.messaging.incoming.executeA.path=/executeA

mp.messaging.incoming.executeB.connector=quarkus-http
mp.messaging.incoming.executeB.path=/executeB

# profile to pack this example into a container, to use it execute activate the maven container profile, -Dcontainer
%container.quarkus.container-image.build=true
%container.quarkus.container-image.push=false
%container.quarkus.container-image.group=${USER}
%container.quarkus.container-image.registry=dev.local
%container.quarkus.container-image.tag=1.0-SNAPSHOT
66 changes: 66 additions & 0 deletions ...ss-workflow-examples/serverless-workflow-subflows-event/src/main/resources/master.sw.json
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{
"id": "master",
"version": "1.0",
"specVersion": "0.8",
"name": "master",
"start": "setup",
"events": [
{
"name": "executeA",
"source": "",
"type": "executeA"
},
{
"name": "executeB",
"source": "",
"type": "executeB"
}
],
"states": [
{
"name": "setup",
"type" : "operation",
"actions": [{
"name": "setup",
"subFlowRef" : "setup"
}],
"transition": "waitForEvents"
},
{
"name": "waitForEvents",
"type": "event",
"onEvents": [
{
"eventRefs": [
"executeA"
],
"actions": [
{
"name": "workflowA",
"subFlowRef": "workflowA",
"actionDataFilter" : {
"useResults": false
}
}
]
},
{
"eventRefs": [
"executeB"
],
"actions": [
{
"name": "workflowB",
"subFlowRef": "workflowB",
"actionDataFilter" : {
"useResults": false
}
}
]
}
],
"exclusive": false,
"end" : true
}
]
}
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