camunda-bpm-spring-boot-starter | Camunda BPM | BPM library
kandi X-RAY | camunda-bpm-spring-boot-starter Summary
kandi X-RAY | camunda-bpm-spring-boot-starter Summary
[cols="a,a,a"] ,==== // license image::// mvn central image::// openhub image::,====. This project provides Spring Boot starters that allow you to integrate the Camunda BPM Platform into your Spring Boot applications. Please check out the the Started Guide] and the
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Top functions reviewed by kandi - BETA
- Registers the servlet
- Gets the init params
- Registers a filter
- Returns the initParams parameters
- Creates the camunda admin user
- Creates a new user
- Checks if the admin user already exists
- Init parameter
- Parse a comma - separated list of URLs
- Initializes the bean configuration with the bean properties
- Creates a filter
- Injects the JpaProperties into the given configuration
- Initializes the given configuration
- Checks if the request is valid
- Bean deployment configuration
- Initializes this user
- Performs the pre - initialization
- Checks if a license key is available in the classpath
- Initializes the resource patterns used for deployment resources
- Returns the contents of the webjar
- Called before application initialization
- Loads the filter rules
- Initializes the bean properties
- Post process application name
- Returns true if the given resource is a file or directory
- Fetches the history level from the database
camunda-bpm-spring-boot-starter Key Features
camunda-bpm-spring-boot-starter Examples and Code Snippets
Community Discussions
Trending Discussions on camunda-bpm-spring-boot-starter
QUESTION
Introduction
I recently stumbled across a problem in my Camunda/Spring Boot application. I just want to expose the Camunda REST-API and thus let Maven incorporate the camunda-bpm-spring-boot-starter-rest dependency. Unfortunately, this seems to mess with the Spring Boot configurations I am having already in place for non-Camunda API endpoints.
Specific Problem Description
I have a class of type AccessDecisionVoter in which the RequestContextHolder is utilized to obtain the current request details, while querying a self-made REST endpoint. This decision voter class is involved in method security and basically decides whether a user is authorized for this endpoint. While this approach works fine with all sorts of other Camunda dependencies the above mentioned dependency somehow distorts the request handling for my own API (The Camunda REST-API works fine). The result being a RequestContextHolder that returns null which ultimately leads to an AccessDeniedException.
Using the RequestContextHolder:
...ANSWER
Answered 2022-Mar-30 at 09:09Luckily, I was able to answer my own question.
1.) In a vanilla Spring Boot environment the DispatcherServlet has a property setThreadContextInheritable set to false. This indicates that no request details are shared with possible child threads from the parent thread that handles a certain request. A possible solution to the stated problem would of course be to set this property to true. But in environments utilizing thread pools such modification would expose request information to all contained threads and thus should not be the prefered solution (Ref).
2.) While debugging I could find that the Camunda REST dependency spawns a bean of Type FilterRegistrationBean which is named requestContextFilter and thus replaces the original bean of Type OrderedRequestContextFilter which is automatically maintained and spawned by Spring. The original bean exposes the request details to the current thread. Since its missing the details are not shared among child threads and the RequestContextHolder remains empty.
Hence, using a new bean of type RequestContextListener seems like the correct approach to expose request details to the current child thread without messing with the DispatcherServlet properties:
QUESTION
I have a simple cammunda spring boot application. which I want to run in a docker container
I am able to run it locally from IntelliJ but when I try to run it inside a docker it fails with below error message:
08043 Exception while performing 'Deployment of Process Application camundaApplication' => 'Deployment of process archive 'ct-camunda': The deployment contains definitions with the same key 'ct-camunda' (id attribute), this is not allowed
docker-compose.yml
...ANSWER
Answered 2022-Feb-25 at 11:07I don't think this is Docker related. Maybe your build process copies files?
"The deployment contains definitions with the same key 'ct-camunda' (id attribute), this is not allowed" Check if you have packaged multiple .bpmn files into your deployment. Maybe you accidentally copied the model file in an additional classpath location. You seem to have two deployments with the same id. (This is not about the filename, but the technical id used inside the XML)
If you are using auto deployment in Spring Boot, you do not have to declare anything in the processes.xml. Use this only in combination with @EnableProcessApplication (or do not use both)
QUESTION
I have a remote server installation of the Camunda BPM Platform (installed using the Camunda BPM Platform Helm Chart - https://github.com/camunda-community-hub/camunda-helm/tree/main/charts/camunda-bpm-platform). It is working as expected and, while new to BPM, I have been able to try out some workflows and examples successfully.
I am now trying to connect to it remotely and register for thrown events. I've been following https://docs.camunda.org/manual/7.15/reference/bpmn20/events/signal-events/ however I am stumped as to how I can get a handle to runtimeService. Other than using the REST API is there another way to connect to a remote Camunda service? I've tried using the camunda-bpm-spring-boot-starter-external-task-client but no RuntimeService gets initialized. Perhaps I'm missing some remote-specific configuration but I have not found anything in the documentation so far. Based on https://camunda.com/best-practices/deciding-about-your-stack/ I understand that this should be possible - however, all examples I've found deal with an embedded service. Any help is appreciated!
...ANSWER
Answered 2021-Jul-29 at 02:51CAMUNDA offers a Java API and a REST API. In addition there are official or community client libraries, which all rely on the REST API. The Java API is only available to code which gets deployed inside the CAMUNDA JVM.
To interact with the engine from outside the JVM you have to use the REST API. The endpoints are named after the resources, not after the Java API services. Hence you You will not find a RuntimeService endpoint on the REST API, but you will find all the functionality the RuntimeService offers, e.g. start via process-definition.
If you do not want to deploy code in the CAMUNDA JVM, then service integration is done preferably using the external task pattern. If you want to use Java, especially the new Spring Boot Starter for external task clients is fun to work with. If you prefer other languages, check out https://github.com/camunda/awesome-camunda-external-clients.
Unfortunately there currently is no implementation type external for signal events so far. Ootb you can work with signal events for 1:n communication between different BPMN processes on the same environment. If you want to send the signal to an external event bus, then you need to add this functionality to the same JVM as a one-time effort. Here is an example for Azure event bus: https://github.com/camunda-consulting/code/tree/master/snippets/engine-plugin-signal-to-azure-eventhub. The implementation would look very similar for SQS or other alternatives.
If you need to modify the container image to include custom code then you can either just add own jars to e.g. the CAMUNDA RUN Docker image as shown here: https://github.com/rob2universe/bpmrun-add-to-dockerimg or you could build your own image based on the Spring Boot Starter as shown here: https://github.com/rob2universe/camunda-aks
QUESTION
I am following this Canmunda-provided Springboot tutorial:
...ANSWER
Answered 2021-Jul-09 at 15:22Simply add -Dorg.camunda.bpm.spring.boot.starter.example.simple.SimpleApplication.exitWhenFinished=false into the command before -jar:
QUESTION
Communda app has application.properties like that:
...ANSWER
Answered 2020-Nov-12 at 20:41Particularly for this issue it was solved with building other modules with -pl or -am options like that:
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Install camunda-bpm-spring-boot-starter
You can use camunda-bpm-spring-boot-starter like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the camunda-bpm-spring-boot-starter component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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