ccciudatu commented on a change in pull request #13572:
URL: https://github.com/apache/beam/pull/13572#discussion_r546433681
##########
File path:
sdks/java/extensions/protobuf/src/main/java/org/apache/beam/sdk/extensions/protobuf/ProtoMessageSchema.java
##########
@@ -130,28 +129,12 @@ public SchemaUserTypeCreator schemaTypeCreator(Class<?>
targetClass, Schema sche
"unchecked"
})
public static <T> SimpleFunction<byte[], Row> getProtoBytesToRowFn(Class<T>
clazz) {
- checkForMessageType(clazz);
- return new ProtoBytesToRowFn(clazz);
- }
-
- private static class ProtoBytesToRowFn<T extends Message> extends
SimpleFunction<byte[], Row> {
- private final ProtoCoder<T> protoCoder;
- private final SerializableFunction<T, Row> toRowFunction;
-
- public ProtoBytesToRowFn(Class<T> clazz) {
- this.protoCoder = ProtoCoder.of(clazz);
- this.toRowFunction = new
ProtoMessageSchema().toRowFunction(TypeDescriptor.of(clazz));
- }
-
- @Override
- public Row apply(byte[] bytes) {
- try {
- T message = protoCoder.getParser().parseFrom(bytes);
- return toRowFunction.apply(message);
- } catch (IOException e) {
- throw new IllegalArgumentException("Could not decode row from proto
payload.", e);
- }
- }
+ Class<Message> protoClass = ensureMessageType(clazz);
+ ProtoCoder<Message> protoCoder = ProtoCoder.of(protoClass);
+ return new SqlRows.BytesToRowFn<>(
+ new ProtoMessageSchema(),
+ TypeDescriptor.of(protoClass),
+ bytes -> protoCoder.getParser().parseFrom(bytes));
Review comment:
this can't be a method reference (`protoCoder.getParser()::parseFrom`)
because the protobuf `Parser` is not `Serializable`.
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