code: private String getPrefixItem(String requirement, String minVersion, String maxVersion) {
          
          switch (requirement) {
          case Languages.JAVA: return "java";
          case Languages.PYTHON: return "python";
          case Languages.RUBY: return "ruby";
          case Languages.NET: return "dotnet";
          case Languages.PHP: return "php";
          
          case Containers.JBOSS6: return "jboss";
          case Containers.JBOSS7: return "jboss";
          case Containers.JETTY6: return "jetty";
          case Containers.TOMCAT: return "tomcat";
          case Containers.TOMCAT8: return "tomcat";
  
          case Categories.MYSQL: return "mysql";
          case Categories.MARIADB: return "maria";
          case Categories.POSTGRESQL: return "postgresql";
          case Categories.MONGODB: return "mongoDB";
          case Categories.REDIS: return "redis";
  
          default:
              return "";
          }
      }
docs: /*
  Quick & dirty getPrefixItem