fix(cardano-chain-follower): update cip509

Signed-off-by: bkioshn <[email protected]>

Author: bkioshn

rust/cardano-chain-follower/src/metadata/cip509.rs

@@ -7,11 +7,9 @@ use std::sync::Arc;
 use cardano_blockchain_types::{MetadatumLabel, TransactionAuxData};
 use minicbor::{Decode, Decoder};
 use pallas::ledger::traverse::MultiEraTx;
-use rbac_registration::cardano::cip509::{Cip509 as RbacRegCip509, Cip509Validation, LABEL};
+use rbac_registration::cardano::cip509::{Cip509 as RbacRegCip509, Cip509Validation};
 
-use super::{
-    DecodedMetadata, DecodedMetadataItem, DecodedMetadataValues, ValidationReport,
-};
+use super::{DecodedMetadata, DecodedMetadataItem, DecodedMetadataValues, ValidationReport};
 
 /// CIP509 metadatum.
 #[derive(Debug, PartialEq, Clone, Default)]
@@ -42,7 +40,7 @@ impl Cip509 {
         let cip509 = match RbacRegCip509::decode(&mut decoder, &mut ()) {
             Ok(metadata) => metadata,
             Err(e) => {
-                Cip509::default().validation_failure(
+                Cip509::default().decoding_failed(
                     &format!("Failed to decode CIP509 metadata: {e}"),
                     &mut validation_report,
                     decoded_metadata,
@@ -56,22 +54,22 @@ impl Cip509 {
 
         // Create a Cip509 struct and insert it into decoded_metadata
         decoded_metadata.0.insert(
-            LABEL,
+            MetadatumLabel::CIP509_RBAC,
             Arc::new(DecodedMetadataItem {
                 value: DecodedMetadataValues::Cip509(Arc::new(Cip509 { cip509, validation })),
                 report: validation_report.clone(),
             }),
         );
     }
 
-    /// Handle validation failure.
-    fn validation_failure(
+    /// Decoding of the CIP509 metadata failed, and can not continue.
+    fn decoding_failed(
         &self, reason: &str, validation_report: &mut ValidationReport,
         decoded_metadata: &DecodedMetadata,
     ) {
         validation_report.push(reason.into());
         decoded_metadata.0.insert(
-            LABEL,
+            MetadatumLabel::CIP509_RBAC,
             Arc::new(DecodedMetadataItem {
                 value: DecodedMetadataValues::Cip509(Arc::new(self.clone()).clone()),
                 report: validation_report.clone(),