@Override
public boolean isCompatibleWith(SecurityConfiguration securityConfig) {
	// not compatible if no hadoop module factory configured.
	if (!securityConfig.getSecurityModuleFactories().contains(HadoopModuleFactory.class.getCanonicalName())) {
		return false;
	}
	// not compatible if Hadoop binary not in classpath.
	try {
		Class.forName(
			"org.apache.hadoop.security.UserGroupInformation",
			false,
			HadoopSecurityContextFactory.class.getClassLoader());
		return true;
	} catch (ClassNotFoundException e) {
		LOG.info("Cannot install HadoopSecurityContext because Hadoop cannot be found in the Classpath.");
		return false;
	}
}