6612: Remove deprecated sync modes and related helper methods

Signed-off-by: Matilda-Clerke <matilda.shay.clerke@gmail.com>

Author: Matilda-Clerke

besu/src/main/java/org/hyperledger/besu/cli/BesuCommand.java

@@ -1566,11 +1566,11 @@ private void validateConsensusSyncCompatibilityOptions() {
             || genesisConfigOptionsSupplier.get().isQbft())
         && !unstableSynchronizerOptions.isSnapSyncBftEnabled()) {
       final String errorSuffix = "can't be used with BFT networks";
-      if (SyncMode.CHECKPOINT.equals(syncMode) || SyncMode.X_CHECKPOINT.equals(syncMode)) {
+      if (SyncMode.CHECKPOINT.equals(syncMode)) {
         throw new ParameterException(
             commandLine, String.format("%s %s", "Checkpoint sync", errorSuffix));
       }
-      if (syncMode == SyncMode.SNAP || syncMode == SyncMode.X_SNAP) {
+      if (syncMode == SyncMode.SNAP) {
         throw new ParameterException(commandLine, String.format("%s %s", "Snap sync", errorSuffix));
       }
     }
@@ -1753,7 +1753,7 @@ && isOptionSet(commandLine, "--sync-min-peers")) {
     CommandLineUtils.failIfOptionDoesntMeetRequirement(
         commandLine,
         "--Xcheckpoint-post-merge-enabled can only be used with CHECKPOINT sync-mode",
-        SyncMode.isCheckpointSync(getDefaultSyncModeIfNotSet()),
+        getDefaultSyncModeIfNotSet() == SyncMode.CHECKPOINT,
         singletonList("--Xcheckpoint-post-merge-enabled"));
 
     CommandLineUtils.failIfOptionDoesntMeetRequirement(
@@ -2043,10 +2043,10 @@ private PrivacyParameters privacyParameters() {
       if (syncMode == SyncMode.FAST) {
         throw new ParameterException(commandLine, String.format("%s %s", "Fast sync", errorSuffix));
       }
-      if (syncMode == SyncMode.SNAP || syncMode == SyncMode.X_SNAP) {
+      if (syncMode == SyncMode.SNAP) {
         throw new ParameterException(commandLine, String.format("%s %s", "Snap sync", errorSuffix));
       }
-      if (syncMode == SyncMode.CHECKPOINT || syncMode == SyncMode.X_CHECKPOINT) {
+      if (syncMode == SyncMode.CHECKPOINT) {
         throw new ParameterException(
             commandLine, String.format("%s %s", "Checkpoint sync", errorSuffix));
       }

besu/src/main/java/org/hyperledger/besu/controller/BesuController.java

@@ -14,8 +14,6 @@
  */
 package org.hyperledger.besu.controller;
 
-import static org.hyperledger.besu.ethereum.eth.sync.SyncMode.isCheckpointSync;
-
 import org.hyperledger.besu.cli.config.EthNetworkConfig;
 import org.hyperledger.besu.config.GenesisConfigFile;
 import org.hyperledger.besu.config.GenesisConfigOptions;
@@ -361,7 +359,7 @@ public BesuControllerBuilder fromGenesisFile(
       // wrap with TransitionBesuControllerBuilder if we have a terminal total difficulty:
       if (configOptions.getTerminalTotalDifficulty().isPresent()) {
         // Enable start with vanilla MergeBesuControllerBuilder for PoS checkpoint block
-        if (isCheckpointSync(syncMode) && isCheckpointPoSBlock(configOptions)) {
+        if (syncMode == SyncMode.CHECKPOINT && isCheckpointPoSBlock(configOptions)) {
           return new MergeBesuControllerBuilder().genesisConfigFile(genesisConfigFile);
         } else {
           // TODO this should be changed to vanilla MergeBesuControllerBuilder and the Transition*

besu/src/main/java/org/hyperledger/besu/controller/BesuControllerBuilder.java

@@ -708,8 +708,7 @@ public BesuController build() {
 
     ethPeers.setTrailingPeerRequirementsSupplier(synchronizer::calculateTrailingPeerRequirements);
 
-    if (SyncMode.isSnapSync(syncConfig.getSyncMode())
-        || SyncMode.isCheckpointSync(syncConfig.getSyncMode())) {
+    if (syncConfig.getSyncMode() == SyncMode.SNAP || syncConfig.getSyncMode() == SyncMode.CHECKPOINT) {
       synchronizer.subscribeInSync((b) -> ethPeers.snapServerPeersNeeded(!b));
       ethPeers.snapServerPeersNeeded(true);
     } else {
@@ -1157,7 +1156,7 @@ protected List<PeerValidator> createPeerValidators(final ProtocolSchedule protoc
 
     final CheckpointConfigOptions checkpointConfigOptions =
         genesisConfigOptions.getCheckpointOptions();
-    if (SyncMode.isCheckpointSync(syncConfig.getSyncMode()) && checkpointConfigOptions.isValid()) {
+    if (syncConfig.getSyncMode() == SyncMode.CHECKPOINT && checkpointConfigOptions.isValid()) {
       validators.add(
           new CheckpointBlocksPeerValidator(
               protocolSchedule,

besu/src/test/java/org/hyperledger/besu/cli/BesuCommandTest.java

@@ -1107,7 +1107,7 @@ public void syncMode_invalid() {
     assertThat(commandOutput.toString(UTF_8)).isEmpty();
     assertThat(commandErrorOutput.toString(UTF_8))
         .contains(
-            "Invalid value for option '--sync-mode': expected one of [FULL, FAST, SNAP, CHECKPOINT, X_SNAP, X_CHECKPOINT] (case-insensitive) but was 'bogus'");
+            "Invalid value for option '--sync-mode': expected one of [FULL, FAST, SNAP, CHECKPOINT] (case-insensitive) but was 'bogus'");
   }
 
   @Test

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/manager/EthPeers.java

@@ -525,7 +525,7 @@ private void ethPeerStatusExchanged(final EthPeer peer) {
 
             peer.chainState().updateHeightEstimate(peerHeadBlockHeader.getNumber());
             CompletableFuture<Void> isServingSnapFuture;
-            if (SyncMode.isCheckpointSync(syncMode) || SyncMode.isSnapSync(syncMode)) {
+            if (syncMode == SyncMode.SNAP || syncMode == SyncMode.CHECKPOINT) {
               // even if we have finished the snap sync, we still want to know if the peer is a snap
               // server
               isServingSnapFuture =

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/DefaultSynchronizer.java

@@ -99,8 +99,7 @@ public DefaultSynchronizer(
         this::calculateTrailingPeerRequirements,
         metricsSystem);
 
-    if (SyncMode.isSnapSync(syncConfig.getSyncMode())
-        || SyncMode.isCheckpointSync(syncConfig.getSyncMode())) {
+    if (syncConfig.getSyncMode() == SyncMode.SNAP || syncConfig.getSyncMode() == SyncMode.CHECKPOINT) {
       SnapServerChecker.createAndSetSnapServerChecker(ethContext, metricsSystem);
     }
 
@@ -145,7 +144,7 @@ public DefaultSynchronizer(
                   worldStateStorageCoordinator,
                   syncState,
                   clock);
-    } else if (SyncMode.isCheckpointSync(syncConfig.getSyncMode())) {
+    } else if (syncConfig.getSyncMode() == SyncMode.CHECKPOINT) {
       this.fastSyncFactory =
           () ->
               CheckpointDownloaderFactory.createCheckpointDownloader(

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/SyncMode.java

@@ -27,35 +27,17 @@ public enum SyncMode {
   // Perform snapsync
   SNAP,
   // Perform snapsync but starting from a checkpoint instead of starting from genesis
-  CHECKPOINT,
-  // Deprecated and will be removed in 24.4.0 (X_SNAP and X_CHECKPOINT)
-  X_SNAP,
-  X_CHECKPOINT;
+  CHECKPOINT;
 
   public String normalize() {
-    if (this.toString().startsWith("X_")) {
-      // removes X_ at the beginning
-      return StringUtils.capitalize(this.toString().substring(2).toLowerCase(Locale.ROOT));
-    }
-
     return StringUtils.capitalize(this.toString().toLowerCase(Locale.ROOT));
   }
 
   public static boolean isFullSync(final SyncMode syncMode) {
     return !EnumSet.of(
             SyncMode.FAST,
             SyncMode.SNAP,
-            SyncMode.X_SNAP,
-            SyncMode.CHECKPOINT,
-            SyncMode.X_CHECKPOINT)
+            SyncMode.CHECKPOINT)
         .contains(syncMode);
   }
-
-  public static boolean isCheckpointSync(final SyncMode syncMode) {
-    return X_CHECKPOINT.equals(syncMode) || CHECKPOINT.equals(syncMode);
-  }
-
-  public static boolean isSnapSync(final SyncMode syncMode) {
-    return X_SNAP.equals(syncMode) || SNAP.equals(syncMode);
-  }
 }