Builder Class — netty Architecture

Source Code

handler/src/main/java/io/netty/handler/ssl/util/SelfSignedCertificate.java lines 386–591

    public static final class Builder {
        // user fields
        String fqdn = "localhost";
        SecureRandom random;
        int bits = DEFAULT_KEY_LENGTH_BITS;
        Date notBefore = DEFAULT_NOT_BEFORE;
        Date notAfter = DEFAULT_NOT_AFTER;
        String algorithm = "RSA";

        // fields that are populated on demand
        Throwable failure;
        KeyPair keypair;
        PrivateKey privateKey;
        String[] paths;

        private Builder() {
        }

        /**
         * Set the fully-qualified domain name of the certificate that should be generated.
         *
         * @param fqdn The FQDN
         * @return This builder
         */
        public Builder fqdn(String fqdn) {
            this.fqdn = ObjectUtil.checkNotNullWithIAE(fqdn, "fqdn");
            return this;
        }

        /**
         * Set the RNG to use for key generation. This setting is not supported by the keytool-based generator.
         *
         * @param random The CSPRNG
         * @return This builder
         */
        public Builder random(SecureRandom random) {
            this.random = random;
            return this;
        }

        /**
         * Set the key size.
         *
         * @param bits The key size
         * @return This builder
         */
        public Builder bits(int bits) {
            this.bits = bits;
            return this;
        }

        /**
         * Set the start of the certificate validity period.
         *
         * @param notBefore The start date
         * @return This builder
         */
        public Builder notBefore(Date notBefore) {
            this.notBefore = ObjectUtil.checkNotNullWithIAE(notBefore, "notBefore");
            return this;
        }

        /**
         * Set the end of the certificate validity period.
         *
         * @param notAfter The start date
         * @return This builder
         */
        public Builder notAfter(Date notAfter) {
            this.notAfter = ObjectUtil.checkNotNullWithIAE(notAfter, "notAfter");
            return this;
        }

        /**
         * Set the key algorithm. Only RSA and EC are supported.
         *
         * @param algorithm The key algorithm
         * @return This builder
         */
        public Builder algorithm(String algorithm) {
            if ("EC".equalsIgnoreCase(algorithm)) {