Spring-Boot with StandaloneProcessEngineConfiguration does not deploy *.bpmn-files

[Torsten Geise]

Hi guys,

I'm stuck setting up a simple web application containing a standalone process engine deploying a simple BPMN process. The problem is that a src/main/resources/bpmn/camunda-demo-1.bpmn file is not deployed. 

After startup of the SpringBootApplication the engine is running. Here's my process engine configuration:

@Configuration
public class CamundaConfiguration {

    @Autowired private DataSource dataSource;

    @Bean
    public ProcessEngineConfiguration processEngineConfiguration() {
        ProcessEngineConfiguration pec = new StandaloneProcessEngineConfiguration();
        pec.setDataSource(dataSource);
        pec.setDatabaseSchemaUpdate("true");
        pec.setJobExecutorActivate(true);
        pec.setHistory("full");
        pec.setJobExecutorDeploymentAware(true);
        return pec;
    }

    @Bean
    public ProcessEngine processEngine() {
        return processEngineConfiguration().buildProcessEngine();
    }
    ...
}

The BPMN file is location in "src/main/resources/bpmn/camunda-demo-1.bpmn". 

I also provided a src/main/resources/META-INF/processes.xml with the following content:

<process-application xmlns="http://www.camunda.org/schema/1.0/ProcessApplication">
    <process-archive name="camunda-demo">
        <resource>bpmn/camunda-demo-1.bpmn</resource>
        <properties>
            <property name="isDeleteUponUndeploy">false</property>
            <property name="isScanForProcessDefinitions">true</property>
        </properties>
    </process-archive>

</process-application>

But there is no process available after startup:

@Override
public void run(String... strings) throws Exception {
    List<ProcessDefinition> procDefs = repositoryService.createProcessDefinitionQuery().list();
    LOG.debug("Number of deployed processes: " + procDefs.size());
}

Any hints?

Thanks,

Torsten
 

[Roman Smirnov]

Hi Torsten,

What does the console say? Is there any log that the processes has been deployed?

Is the attribute "isExecutable" of your process set to true?

Cheers,

Roman

[Torsten Geise]

The console output does not say anything about deployment. Just a statement about successful creation of the process engine:

o.c.bpm.engine.impl.ProcessEngineImpl    : ProcessEngine default created

The BPMN file is executable:

<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd" id="_cS3BYOU8EeSOnprl-BZowg" exporter="camunda modeler" exporterVersion="2.7.0" targetNamespace="http://activiti.org/bpmn">
  <bpmn2:process id="Process_1" isExecutable="true">
    <bpmn2:startEvent id="StartEvent_1">
...

[Torsten Geise]

I tried setup the engine with spring xml configuration ... it works. Obviously, there is one configuration property "deploymentResources" that is not available when configurating the process engine in Java.

<bean id="processEngineConfiguration" class="org.camunda.bpm.engine.spring.SpringProcessEngineConfiguration">
    <property name="dataSource" ref="camundaDataSource" />
    <property name="transactionManager" ref="camundaTransactionManager" />
    <property name="databaseSchemaUpdate" value="true" />
    <property name="jobExecutorActivate" value="false" />
    <property name="deploymentResources" value="classpath*:/bpmn/*.bpmn" />
    <property name="historyLevel" value="HISTORY_LEVEL_FULL" />
</bean>

Any idea where to configure this property in Java?

Thanks,
Torsten

[Roman Smirnov]

Hi Torsten,

The property "deploymentResources" can only configured on a "SpringProcessEngineConfiguration" (see [1]).

You could try to adjust your java process engine configuration as follows:

  public ProcessEngineConfiguration processEngineConfiguration() {
    SpringProcessEngineConfiguration pec = new SpringProcessEngineConfiguration();
    // ...

    // set deployment resources 
    pec.setDeploymentResources(...);

    return pec;
  }

 

Cheers,

Roman

[1]: http://docs.camunda.org/7.2/guides/user-guide/#spring-framework-integration-automatic-resource-deployment

[Torsten Geise]

This works.

Thanks, Torsten