Chapter 2. System integration with Maven

If your environment does not have access to the internet, set up an in-house Nexus and use it instead of Maven Central or other public repositories. To import JARs from the remote Maven repository of Red Hat Decision Manager server to a local Maven project, turn on pre-emptive authentication for the repository server. You can do this by configuring authentication for guvnor-m2-repo in the pom.xml file as shown below:

<server>
  <id>guvnor-m2-repo</id>
  <username>admin</username>
  <password>admin</password>
  <configuration>
    <wagonProvider>httpclient</wagonProvider>
    	<httpConfiguration>
      	<all>
      	   <usePreemptive>true</usePreemptive>
      	</all>
    	</httpConfiguration>
  </configuration>
</server>

Alternatively, you can set Authorization HTTP header with Base64 encoded credentials:

<server>
  <id>guvnor-m2-repo</id>
  <configuration>
  	<httpHeaders>
  	   <property>
    	    <name>Authorization</name>
    	    <!-- Base64-encoded "admin:admin" -->
    	    <value>Basic YWRtaW46YWRtaW4=</value>
  	   </property>
    </httpHeaders>
  </configuration>
</server>

In Decision Central, all Maven repositories are checked for any duplicated GroupId, ArtifactId, and Version (GAV) values in a project. If a GAV duplicate exists, the performed operation is canceled.

Duplicate GAV detection is executed every time you perform the following operations:

The following Maven repositories are checked for duplicate GAVs:

Decision Central users with the admin role can modify the list of repositories that are checked for duplicate GroupId, ArtifactId, and Version (GAV) values for a project.