dcapwell commented on code in PR #169:
URL: https://github.com/apache/cassandra-accord/pull/169#discussion_r1951878403
##########
accord-core/src/main/java/accord/topology/TopologyManager.java:
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@@ -442,6 +448,102 @@ private void timeOutCurrentListeners(long newDeadline,
Agent agent)
}
}
+ // this class could be just the list, but left it here in case we wish to
expose "futureEpochs" and "pending" as well
+ public static class EpochsSnapshot implements
Iterable<EpochsSnapshot.Epoch>
+ {
+ public final ImmutableList<Epoch> epochs;
+
+ public EpochsSnapshot(ImmutableList<Epoch> epochs)
+ {
+ this.epochs = epochs;
+ }
+
+ @Override
+ public Iterator<Epoch> iterator()
+ {
+ return epochs.iterator();
+ }
+
+ public enum ResultStatus
+ {
+ PENDING("pending"),
+ SUCCESS("success"),
+ FAILURE("failure");
+
+ public final String value;
+
+ ResultStatus(String value)
+ {
+ this.value = value;
+ }
+
+ private static ResultStatus of(AsyncResult<?> result)
+ {
+ if (result == null || !result.isDone())
+ return PENDING;
+
+ return result.isSuccess() ? SUCCESS : FAILURE;
+ }
+ }
+
+ public static class EpochReady
+ {
+ public final ResultStatus metadata, coordinate, data, reads;
+
+ public EpochReady(ResultStatus metadata, ResultStatus coordinate,
ResultStatus data, ResultStatus reads)
+ {
+ this.metadata = metadata;
+ this.coordinate = coordinate;
+ this.data = data;
+ this.reads = reads;
+ }
+
+ private static EpochReady of(ConfigurationService.EpochReady ready)
+ {
+ return new EpochReady(ResultStatus.of(ready.metadata),
+ ResultStatus.of(ready.coordinate),
+ ResultStatus.of(ready.data),
+ ResultStatus.of(ready.reads));
+ }
+ }
+
+ public static class Epoch
+ {
+ public final long epoch;
+ public final EpochReady ready;
+ public final Ranges global, addedRanges, removedRanges, synced,
closed, retired;
+
+ public Epoch(long epoch, EpochReady ready, Ranges global, Ranges
addedRanges, Ranges removedRanges, Ranges synced, Ranges closed, Ranges retired)
+ {
+ this.epoch = epoch;
+ this.ready = ready;
+ this.global = global;
+ this.addedRanges = addedRanges;
+ this.removedRanges = removedRanges;
+ this.synced = synced;
+ this.closed = closed;
+ this.retired = retired;
+ }
+ }
+
+ private static class Builder
Review Comment:
could inline, the first draft of this wasn't defining each field at once
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