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From monolith to single-source to single-deployment

This repository contains projects to evaluate an evolution strategy for Eclipse RCP Desktop based applications to create web-based applications.

The folder eclipse-application contains the projects for an Eclipse RCP Desktop application as a client application for the single-deployed services. These projects use the PDE project layout.

The folder service-application contains the projects for the OSGi Services and projects for creating a commandline application, an application that publishes the services via REST API and an application that publishes the services via REST API and as OSGi Remote Services at once. These projects use a Java/Maven project layout.

The folder vscode-extension contains a simple extension for VS Code to show the integration of a REST service. It is configured to use the services published via the Remote Service application of the service-application.

The folder theia-customization a Theia Extension that modifies the default layout of the application by adding a header banner. The folder theia-app contains the project to build a Theia Application that contains the VSCode Extension and the Theia Extension.

Build & Run the example

The following section describes the process for building and running the example.

Service Applications

First you need to run the build for the OSGi service applications. As a pre-requisite you need to install the ECF JAX-RS Distribution Provider bundles to the local Maven repository, as they are not yet available via Maven Central. To make this easier the folder service-application/jaxrs-provider-bundles contains an install script (install.bat/install.sh).

After the bundles are available in the local Maven repository, execute the service-application build via

mvn clean install

This installs the OSGI Service API and Implementation bundle also in the local Maven repository, which is required for the Eclipse RCP Application build.

After the build succeeds the remoteservice example application can be started via

java -jar org.fipro.service.app.rs\target\rs-app.jar

You can verify if the application is started by accessing the following URL in a browser:
http://localhost:8282/camelcase/osgicommunityday

Note
The build also produces a commandline application and a Jakarta-RS Whiteboard application that can be tested.

Client Applications

You can run the Eclipse Application via build & run from commandline. For this execute the build in the folder eclipse-application via

mvn clean verify

After the build succeeds you will find the resulting product for your OS in org.fipro.client.ui.product/target/products.

Alternatively you can start the application from within an Eclipse IDE:

  • Import the projects in eclipse-application into an Eclipse workspace.
  • Open the Target Definition in org.fipro.client.target and activate it.
  • Open the product definition in org.fipro.client.ui.product and Launch an Eclipse application

Additionally in vscode-extension there is an example on how to integrate the service in Visual Studio Code. To see this in action, open the folder vscode-extension in VS Code and execute the extension via F5. In the then opened VS Code instance select a word in the editor, press F1 and select Modify Selection. If the Remove Service Application with Jakarta-RS Distribution Provider is running, the selected text should be changed to uppercase.
Note that a devcontainer is configured to reduce the installation needs in the host system.