public static ISignerFactory registerSignerFactory()

in src/main/java/com/alibaba/cloudapi/sdk/signature/SignerFactoryManager.java [28:39]


    public static ISignerFactory registerSignerFactory(String method, ISignerFactory factory) {

        if (HttpCommonUtil.isEmpty(method)) {
            throw new IllegalArgumentException("method can not be empty");
        }

        if (null == factory) {
            throw new IllegalArgumentException("factory can not be null");
        }

        return factoryMap.put(method, factory);
    }