This project provides the core functionality of openLCA as a set of Maven modules. Since version 1.4 the openLCA application is built on top of these modules.

The modules are available in the Maven Central Repository, so you can just add them as a dependency to your project:

<dependency>
  <groupId>org.openlca</groupId>
  <artifactId>olca-core</artifactId>
  <version>2.0.0</version>
</dependency>

A Java version >= 17 is required.

In order to build the modules from source, you need to have a JDK >=17 and Maven 3 installed. Then, building the modules can be done like this:

git clone https://github.com/GreenDelta/olca-modules.git
cd olca-modules
mvn install

If the build fails because of failing tests you can skip them via:

mvn install -DskipTests=true

• olca-core: the openLCA kernel with the openLCA model, the database layer, LCA calculations, JSON-LD data exchange etc.
• olca-git: a client API to communicate with data repositories using Git
• olca-io: the import-export API of openLCA
• olca-ipc: inter-process communication with openLCA over JSON-RPC/HTTP
• olca-proto-io: data exchange via Protocol Buffers and gRPC

Unless stated otherwise, all source code of the openLCA project is licensed under the Mozilla Public License, v. 2.0. Please see the LICENSE.txt file in the root directory of the source code.