rhauch commented on a change in pull request #9541:
URL: https://github.com/apache/kafka/pull/9541#discussion_r615975188
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File path:
connect/api/src/main/java/org/apache/kafka/connect/data/ConnectSchema.java
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@@ -266,7 +267,7 @@ public static void validateValue(String name, Schema
schema, Object value) {
private static List<Class> expectedClassesFor(Schema schema) {
List<Class> expectedClasses = LOGICAL_TYPE_CLASSES.get(schema.name());
if (expectedClasses == null)
- expectedClasses = SCHEMA_TYPE_CLASSES.get(schema.type());
+ expectedClasses = SCHEMA_TYPE_CLASSES.getOrDefault(schema.type(),
Collections.emptyList());
Review comment:
Strictly speaking, this shouldn't be necessary as `SCHEMA_TYPE_CLASSES`
should have a `Schema` instance for all `Schema.Type` literals. And with
`SchemaBuilder` a connector or converter cannot create a schema instance with a
null `Schema.Type`.
However, it is possible to construct a `ConnectSchema` instance with a null
`Type` reference (like what `FakeSchema` essentially does in the existing
test), which of course without this change would result in this method
returning a null list.
So +1 for this line change since it simplifies the error handling in the
calling code.
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