C0urante commented on code in PR #13433:
URL: https://github.com/apache/kafka/pull/13433#discussion_r1150960727
##########
connect/api/src/main/java/org/apache/kafka/connect/data/ConnectSchema.java:
##########
@@ -289,29 +291,202 @@ public ConnectSchema schema() {
@Override
public boolean equals(Object o) {
if (this == o) return true;
- if (o == null || getClass() != o.getClass()) return false;
- ConnectSchema schema = (ConnectSchema) o;
- return Objects.equals(optional, schema.optional) &&
- Objects.equals(version, schema.version) &&
- Objects.equals(name, schema.name) &&
- Objects.equals(doc, schema.doc) &&
- Objects.equals(type, schema.type) &&
- Objects.deepEquals(defaultValue, schema.defaultValue) &&
- Objects.equals(fields, schema.fields) &&
- Objects.equals(keySchema, schema.keySchema) &&
- Objects.equals(valueSchema, schema.valueSchema) &&
- Objects.equals(parameters, schema.parameters);
+ if (!(o instanceof Schema)) return false;
+ Schema schema = (Schema) o;
+ return equals(this, schema);
+ }
+
+ private static boolean equals(Schema left, Schema right) {
+ return equals(left, right, new IdentityHashMap<>());
+ }
+
+ private static boolean equals(Schema left, Schema right,
IdentityHashMap<Schema, Schema> equivalentSchemas) {
+ if (left == right)
+ return true;
+
+ if (equivalentSchemas.containsKey(left)) {
+ // Use referential equality because object equality might cause a
stack overflow
+ return equivalentSchemas.get(left) == right;
+ }
+
+ boolean shallowMatches = Objects.equals(left.isOptional(),
right.isOptional()) &&
+ Objects.equals(left.version(), right.version()) &&
+ Objects.equals(left.name(), right.name()) &&
+ Objects.equals(left.doc(), right.doc()) &&
+ Objects.equals(left.type(), right.type()) &&
+ Objects.equals(left.parameters(), right.parameters());
+ if (!shallowMatches)
+ return false;
+
+ // Avoid mutating the passed-in map, since that may interfere with
recursive calls higher up the stack
+ IdentityHashMap<Schema, Schema> equivalentSchemasCopy = new
IdentityHashMap<>(equivalentSchemas);
+ equivalentSchemasCopy.put(left, right);
Review Comment:
Thanks Greg, I agree that it's useful to understand the limitations of this
approach but that we don't need to address them right now.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
