Maven Enforcer - Is it possible to have a custom rule with an array property?

Question

I'm facing an issue regarding the configuration of one of my enforcer custom rules.

The plugin configuration inside my POM file looks like this:

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-enforcer-plugin</artifactId>
        <version>1.3.1</version>
        <executions>
          <execution>
            <id>enforce</id>
            <phase>validate</phase>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <rules>
                <uTF8Rule implementation="com.mavenrules.utf8validator.UTF8Rule">
                  <validationPath>${basedir}</validationPath>
                </uTF8Rule>
              </rules>
            </configuration>
          </execution>
        </executions>
      </plugin>

Dependencies to the Rule have been declared in the parent POM.

What I want is to be able to specify a list/array of Paths as a property to the "uTF8Rule" instead of just a simple variable. (I want the POM to be responsible for the paths where my rule applies and not configure the rule to search various paths inside my basedir)

I was not able to find references/documentation regarding types of the rule properties.

A desired output would be something like:

<configuration>
  <rules>
    <uTF8Rule implementation="com.mavenrules.utf8validator.UTF8Rule">
       <listOfPaths>
          <path1>xxx</path1>
          <path2>yyy</path2>                
       </listOfPaths>
    </uTF8Rule>
  </rules>
</configuration>

Any idea is welcomed.

Thanks in advance!

Answer 1

Objects within the configuration follow the JavaBean/pojo convention. So in this case:

public class com.mavenrules.utf8validator.UTF8Rule {
  private List<String> listOfPaths; // or String[]
}

This should already be enough, but is a bit useless. By adding a getter and setter you should be fine. If I call correctly some versions have trouble initiating the List or array, but that's sothing you can do yourself as well.