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https://issues.apache.org/jira/browse/FLINK-8558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16538667#comment-16538667
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ASF GitHub Bot commented on FLINK-8558:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/6264#discussion_r201359834
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/formats/utils/TestAmbiguousTableFormatFactory.scala
---
@@ -16,22 +16,32 @@
* limitations under the License.
*/
-package org.apache.flink.streaming.connectors.kafka;
+package org.apache.flink.table.formats.utils
-import static
org.apache.flink.table.descriptors.KafkaValidator.CONNECTOR_VERSION_VALUE_010;
+import java.util
+
+import org.apache.flink.table.formats.TableFormatFactory
+import org.apache.flink.types.Row
/**
- * Tests for {@link Kafka010AvroTableSourceFactory}.
- */
-public class Kafka010AvroTableSourceFactoryTest extends
KafkaAvroTableSourceFactoryTestBase {
+ * Table format factory for testing.
+ */
+class TestAmbiguousTableFormatFactory extends TableFormatFactory[Row] {
--- End diff --
This implicit interconnection is on purposes. A similar configuration could
happen in a SQL Client library folder. The `TableFormatFactoryServiceTest`
should fail if they are changed too much. But I added more comments for
implementers. If `TestAmbiguousTableFormatFactory` would extend from
`TestTableFormatFactory` then the class based selection would not work anymore.
> Add unified format interfaces and format discovery
> --------------------------------------------------
>
> Key: FLINK-8558
> URL: https://issues.apache.org/jira/browse/FLINK-8558
> Project: Flink
> Issue Type: New Feature
> Components: Streaming Connectors
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
>
> In the last release, we introduced a new module {{flink-formats}}. Currently
> only {{flink-avro}} is located there but we will add more formats such as
> {{flink-json}}, {{flink-protobuf}}, and so on. For better separation of
> concerns we want decouple connectors from formats: e.g., remove
> {{KafkaAvroTableSource}} and {{KafkaJsonTableSource}}.
> A newly introduced {{FormatFactory}} will use Java service loaders to
> discovery available formats in the classpath (similar to how file systems are
> discovered now). A {{Format}} will provide a method for converting {{byte[]}}
> to target record type.
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