gistfile1.java

   /**
    * This method only returns true if:
    *
    * The major version of pluginApiVersion is equal to the major version of runtimeVersion AND
    *
    * The minor version of pluginApiVersion is less or equal to the minor version of runtimeVersion
    *
    * @param runtimeVersion a version in the format x.x.x
    * @param pluginApiVersion a version in the format x.x.x
    * @return
    */
   public static boolean isApiCompatible(CharSequence runtimeVersion, String pluginApiVersion)
   {
      Matcher runtimeMatcher = VERSION_PATTERN.matcher(runtimeVersion);
      if (runtimeMatcher.matches())
      {
         int runtimeMajorVersion = Integer.parseInt(runtimeMatcher.group(1));
         int runtimeMinorVersion = Integer.parseInt(runtimeMatcher.group(2));

         Matcher pluginApiMatcher = VERSION_PATTERN.matcher(pluginApiVersion);
         if (pluginApiMatcher.matches())
         {
            int pluginApiMajorVersion = Integer.parseInt(pluginApiMatcher.group(1));
            int pluginApiMinorVersion = Integer.parseInt(pluginApiMatcher.group(2));

            if (pluginApiMajorVersion == runtimeMajorVersion && pluginApiMinorVersion <= runtimeMinorVersion)
            {
               return true;
            }
         }
      }
      return false;
   }