public PublicKeyRecord publicKeySelector()

in main/src/main/java/org/apache/james/jdkim/DKIMVerifier.java [84:106]

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

    public PublicKeyRecord publicKeySelector(List<String> records)
            throws PermFailException {
        String lastError = null;
        if (records == null || records.isEmpty()) {
            lastError = "no key for signature";
        } else {
            for (String record : records) {
                try {
                    PublicKeyRecord pk = newPublicKeyRecord(record);
                    pk.validate();
                    // we expect a single valid record, otherwise the result
                    // is unpredictable.
                    // in case of multiple valid records we use the first one.
                    return pk;
                } catch (IllegalStateException e) {
                    // do this at last.
                    lastError = "invalid key for signature: " + e.getMessage();
                }
            }
        }
        // return PERMFAIL ($error).
        throw new PermFailException(lastError);
    }