Creating PreIngestionLambda Interface (#398)

* Initial commit

* Added proto

* Fixed enum

* Using pdl

* Addressed 1 comment

* Added POJO

* Addressed more comments

* Fixed checkstyle error

* Added @builder

* Final interface decision

* Revert "Final interface decision"

This reverts commit b32bd1c.

* Include Skip and Proceed

* Removed unused import

* Final

* java doc

---------

Co-authored-by: Rakhi Agrawal <[email protected]>

dao-api/build.gradle

@@ -9,7 +9,7 @@ dependencies {
   compile externalDependency.javatuples
   compile externalDependency.reflections
   compile externalDependency.commonsLang
-
+  implementation 'com.google.protobuf:protobuf-java:3.21.1'
   dataModel project(':core-models')
   dataModel project(':validators')
 

dao-api/src/main/java/com/linkedin/metadata/dao/ingestion/PreUpdateRoutingClient.java

@@ -0,0 +1,19 @@
+package com.linkedin.metadata.dao.ingestion;
+
+import com.google.protobuf.Message;
+
+
+/**
+ * An interface that defines methods to route update requests to the appropriate custom APIs.
+ */
+
+public interface PreUpdateRoutingClient<ASPECT extends Message> {
+  /**
+   * A method that routes the update request to the appropriate custom API.
+   * @param urn the urn of the asset
+   * @param aspect the aspect to be updated
+   * @return the updated aspect
+   * @throws Exception if the routing fails
+   */
+  ASPECT routingLambda(Message urn, ASPECT aspect) throws Exception;
+}