This post summarizes my initial tryout of Maven project for Drools
Eclipse Plugin
Installing Eclipse plugins is optional, but it will make your job easier when using Drools in Eclipse.
Firstly, you might want to install the GEF (Graphical Editing Framework) on your eclipse or STS first. To do so, select "Help-->Install New Software", and enter the following link to add:
http://download.eclipse.org/tools/gef/updates/releases/
Set the GEF as the name. As show in the figure below:
Click Next and Finish to complete the the installation of GEF.
Next install the drools plugin in Eclipse. To do so, select "Help-->Install New Software". and enter the following link to add:
http://download.jboss.org/drools/release/5.5.0.Final/org.drools.updatesite/
Set the DROOLS as the name. As shown in the figure below:
Click Next and Finish to complete the installation of DROOLS.
Configure pom.xml in Maven project
The following is the dependencies setup for Maven project to use Drools:
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>5.5.0.Final</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>5.5.0.Final</version>
</dependency>
To add maven plugins for compiling and executing the project:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<goals><goal>exec</goal></goals>
</execution>
</executions>
<configuration>
<includeProjectDependencies>true</includeProjectDependencies>
<includePluginDependencies>false</includePluginDependencies>
<executable>java</executable>
<classpathScope>compile</classpathScope>
<mainClass>com.memeanalytics.drools_hello_world.App</mainClass>
</configuration>
</plugin>
Where to add the Drool rule files in the project root folder
To create Drools rules *.drl files, first create a "src/main/resources" folder under the project root folder, and the create and save *.drl files into it. The package names in the *.drl files is up to the developer to define. Once they are in that folder, they can be retrieved directly by their name in method such as ResourceFactory.newResourceClassPathResource() method. For example, for "src/main/resources/simplerule.drl", we can write ResourceFactory.newResourceClassPathResource("simplerule.drl").
Tryout Maven Project Source Codes
Below is the source codes for the tryout
