import com.adeptia.indigo.security.auth.PassiveCallbackHandler;
import com.adeptia.indigo.web.SessionLoginContext;
import com.adeptia.indigo.system.IndigoConfig;
import com.adeptia.indigo.security.AuthUtil;

PassiveCallbackHandler cbh = new PassiveCallbackHandler("<USER_NAME>", "<PASSWORD>",
					"<USER_GROUP>",true);
SessionLoginContext lc = AuthUtil.getSessionLoginContext("<USER_NAME>",cbh);
lc.login();