public EncryptionMaterials modifyMaterials()

in src/main/java/software/amazon/encryption/s3/materials/KmsKeyring.java [88:109]

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

        public EncryptionMaterials modifyMaterials(EncryptionMaterials materials) {
            S3Request s3Request = materials.s3Request();

            Map<String, String> encryptionContext = new HashMap<>(materials.encryptionContext());
            if (s3Request.overrideConfiguration().isPresent()) {
                AwsRequestOverrideConfiguration overrideConfig = s3Request.overrideConfiguration().get();
                Optional<Map<String, String>> optEncryptionContext = overrideConfig
                        .executionAttributes()
                        .getOptionalAttribute(S3EncryptionClient.ENCRYPTION_CONTEXT);
                optEncryptionContext.ifPresent(encryptionContext::putAll);
            }

            if (encryptionContext.containsKey(ENCRYPTION_CONTEXT_ALGORITHM_KEY)) {
                throw new S3EncryptionClientException(ENCRYPTION_CONTEXT_ALGORITHM_KEY + " is a reserved key for the S3 encryption client");
            }

            encryptionContext.put(ENCRYPTION_CONTEXT_ALGORITHM_KEY, materials.algorithmSuite().cipherName());

            return materials.toBuilder()
                    .encryptionContext(encryptionContext)
                    .build();
        }