strolch-website/content/development/_index.md at 2605fe4e4ab711808881c03de6f95ac1393adb88

Strolch

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Development	90

Prerequisites

To start developing Strolch you need an installed:

Java JDK 11
Apache Maven 3.x

Building Strolch

{{% notice tip %}} Note: You don't have to build Strolch if you want to use the version on Maven central, but if you need a snapshot version, or the release you want isn't on central, then go ahead and build Strolch. {{% /notice %}}

Building Strolch is just a few lines:

git clone https://github.com/strolch-li/strolch.git
cd strolch
mvn clean install -DskipTests

{{% notice warning %}} Note: To run the tests you will need to configure the PostgreSQL Databases. See the README in the module. {{% /notice %}}

After running the Maven build, you will have a full build of all Strolch projects. Now you can start modifying the projects, and add your own features, or, far more interesting, start developing your projects using the Strolch agent.

Converting an existing application

You can convert an existing application to a Strolch agent, but this might be a bit daunting in the beginning. If you are planning on doing this, first create a test application using the maven archetypes, so that you can get a feel for the configuration.

Once that works, use the archetypes configuration to reconfigure your project to start as a Strolch agent.

{{% notice warning %}} Note: Beware to select the archetype pertaining to your use case:

For a web app use the li.strolch.mvn.archetype.webapp
For a application with a main method use li.strolch.mvn.archetype.main {{% /notice %}}

Creating a Strolch App

To create your own Strolch App, you can use Maven's archetype generation. There are two versions, one is a simple Java App which you can use to directly access the Strolch runtime, and the second is to create a Java Web App, which is the usual way to run Strolch runtimes.

{{% notice warning %}} Note: you need to have installed Strolch to your local maven repo, otherwise the archetype won't be available. {{% /notice %}}

Creating a Java Strolch Web App

The following shows the maven command to create the new maven project. Note that you should replace the placeholders in the brackets:

{{% notice tip %}} The code is also available on GitHub. {{% /notice %}}

mvn archetype:generate \
  -DarchetypeGroupId=li.strolch \
  -DarchetypeArtifactId=li.strolch.mvn.archetype.webapp \
  -DarchetypeVersion=1.6.0-SNAPSHOT \
  -DgroupId=<my.groupid> \
  -DartifactId=<my-artifactId> \
  -Dversion=<my.version> \
  -DappName="<my app name>"

Install the web dependencies

The Strolch Web App uses NodeJS v11.x to build the web dependencies. Please download the relevant platform's package, unpack it, and add the bin directory to your path variable.

Once NodeJS is installed, then you can prepare the web dependencies:

cd src/main/webapp/
npm install gulp -g
npm install
gulp

{{% notice warning %}} Note: Whenever the bower.json is changed then you should again call npm install inside the webapp folder. {{% /notice %}}

Building the WAR

Building the WAR uses the package maven goal, but to have the optimized WAR use the release profile:

mvn clean package -Prelease

Happy coding =))

Creating a simple Java Strolch App