GRPC support for MultiJoin, improved GRPC support for RangeJoin (#5153)

* MultiJoin GRPC implementation and RangeJoin GRPC update.

* Additional verification for MultiJoinRequest

* Updated the documentation.

* OperatorHelper updated.

* PR comments addressed.

* Simplified MultiJoin GRPC structures.

* Re-gen'd proto output.

* Removed incorrect comment.

* Added comments to MultiJoinInput structures.

authorization/src/main/java/io/deephaven/auth/codegen/impl/TableServiceContextualAuthWiring.java

@@ -31,6 +31,7 @@
 import io.deephaven.proto.backplane.grpc.LeftJoinTablesRequest;
 import io.deephaven.proto.backplane.grpc.MergeTablesRequest;
 import io.deephaven.proto.backplane.grpc.MetaTableRequest;
+import io.deephaven.proto.backplane.grpc.MultiJoinTablesRequest;
 import io.deephaven.proto.backplane.grpc.NaturalJoinTablesRequest;
 import io.deephaven.proto.backplane.grpc.RangeJoinTablesRequest;
 import io.deephaven.proto.backplane.grpc.RunChartDownsampleRequest;
@@ -372,6 +373,17 @@ void checkPermissionAjTables(AuthContext authContext, AjRajTablesRequest request
  void checkPermissionRajTables(AuthContext authContext, AjRajTablesRequest request,
  List<Table> sourceTables);
 
+ /**
+ * Authorize a request to MultiJoinTables.
+ *
+ * @param authContext the authentication context of the request
+ * @param request the request to authorize
+ * @param sourceTables the operation's source tables
+ * @throws io.grpc.StatusRuntimeException if the user is not authorized to invoke MultiJoinTables
+ */
+ void checkPermissionMultiJoinTables(AuthContext authContext, MultiJoinTablesRequest request,
+ List<Table> sourceTables);
+
  /**
  * Authorize a request to RangeJoinTables.
  *
@@ -677,6 +689,11 @@ public void checkPermissionRajTables(AuthContext authContext, AjRajTablesRequest
  checkPermission(authContext, sourceTables);
  }
 
+ public void checkPermissionMultiJoinTables(AuthContext authContext,
+ MultiJoinTablesRequest request, List<Table> sourceTables) {
+ checkPermission(authContext, sourceTables);
+ }
+
  public void checkPermissionRangeJoinTables(AuthContext authContext,
  RangeJoinTablesRequest request, List<Table> sourceTables) {
  checkPermission(authContext, sourceTables);
@@ -972,6 +989,13 @@ public void checkPermissionRajTables(AuthContext authContext, AjRajTablesRequest
  }
  }
 
+ public void checkPermissionMultiJoinTables(AuthContext authContext,
+ MultiJoinTablesRequest request, List<Table> sourceTables) {
+ if (delegate != null) {
+ delegate.checkPermissionMultiJoinTables(authContext, request, sourceTables);
+ }
+ }
+
  public void checkPermissionRangeJoinTables(AuthContext authContext,
  RangeJoinTablesRequest request, List<Table> sourceTables) {
  if (delegate != null) {