[rules-dev] Fwd: How to work with Protobuf (.proto) files

All, re-sending this e-mail. Anyone touching .proto files please make sure you follow the instructions bellow to install the protobuf plugin. I will add that to a wiki page. Edson ---------- Forwarded message ---------- From: Edson Tirelli <ed.tirelli(a)gmail.com&gt; Date: Wed, Mar 21, 2012 at 12:30 PM Subject: How to work with Protobuf (.proto) files To: Rules Dev List <rules-dev(a)lists.jboss.org&gt; All, As we started using Protobuf, it is important to know how you make changes to .proto files and how to compile them. Easiest way: 1. Download protobuf compiler from: http://code.google.com/p/protobuf/downloads/list 2. Install protobuf-dt eclipse plugin as detailed here: http://code.google.com/p/protobuf-dt/ 3. Configure the destination directory to generate the java files as detailed in step 2 here: http://code.google.com/p/protobuf-dt/wiki/IntegrationWithProtoc Set the "Java Output Directory" to: src/main/java 4. VERY IMPORTANT FOR JBPM: jBPM Flow project has a .proto file that extends the data types defined in the .proto file in Drools Core, so you need to configure the protobuf import path as detailed here: http://code.google.com/p/protobuf-dt/wiki/ImportPaths Add the following import paths to the jbpm-flow project: ${your drools-core project in eclipse}/src/main/resources ${your_drools_flow_project}/src/main/resources After doing that, when you edit and save the .proto files, eclipse will automatically compile and regenerate the java source code for them. Edson