himanshug commented on a change in pull request #7985: fail complex type
'serde' registration when registered type does not match expected type
URL: https://github.com/apache/incubator-druid/pull/7985#discussion_r303060395
##########
File path:
processing/src/main/java/org/apache/druid/segment/serde/ComplexMetrics.java
##########
@@ -38,12 +38,18 @@ public static ComplexMetricSerde getSerdeForType(String
type)
return complexSerializers.get(type);
}
- public static void registerSerde(String type, Supplier<ComplexMetricSerde>
serdeSupplier)
+ public static <T extends ComplexMetricSerde> void registerSerde(String type,
Class<T> clazz, Supplier<T> serdeSupplier)
{
- if (ComplexMetrics.getSerdeForType(type) == null) {
- if (complexSerializers.containsKey(type)) {
- throw new ISE("Serializer for type[%s] already exists.", type);
+ if (complexSerializers.containsKey(type)) {
+ if
(!complexSerializers.get(type).getClass().getCanonicalName().equals(clazz.getCanonicalName()))
{
Review comment:
I think this might be more general than this context and better served as a
static analysis tool check to never use `getCanonicalName()` and use
`getName()` instead of some comment here.
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