public ValidationResult validate()

in src/main/java/org/apache/sling/cli/impl/pgp/HashValidator.java [35:52]

• 18 lines of code
• 3 McCabe index (conditional complexity)

    public ValidationResult validate(Path artifact, Path hash, String algorithm) {
        try {
            MessageDigest digest = MessageDigest.getInstance(algorithm);
            try (InputStream artifactIS = Files.newInputStream(artifact)) {
                byte[] buff = new byte[4096];
                int read;
                while ((read = artifactIS.read(buff)) != -1) {
                    digest.update(buff, 0, read);
                }
                byte[] hashed = digest.digest();
                String actualHash = Hex.toHexString(hashed);
                String expectedHash = Files.readString(hash, StandardCharsets.US_ASCII);
                return new ValidationResult(actualHash.equalsIgnoreCase(expectedHash), expectedHash, actualHash);
            }
        } catch (NoSuchAlgorithmException | IOException e) {
            throw new IllegalStateException(String.format("Cannot validate %s hash.", algorithm), e);
        }
    }