cdm/src/main/java/ucar/nc2/NetcdfFile.java
static public boolean iospRegistered(Class iospClass) {
    for (IOServiceProvider spi : registeredProviders) {
      if (spi.getClass() == iospClass) return true;
    }
    return false;
  }
static public boolean iospRegistered(Class iospClass) {
    for (IOServiceProvider spi : registeredProviders) {
      if (spi.getClass() == iospClass) return true;
    }
    return false;
  }
See if a specific IOServiceProvider is registered

@param iospClass Class for which to search