YannByron commented on code in PR #9068:
URL: https://github.com/apache/hudi/pull/9068#discussion_r1244635387


##########
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/procedures/HoodieProcedureUtils.scala:
##########
@@ -43,4 +47,74 @@ object HoodieProcedureUtils {
 
     ProcedureArgs(isNamedArgs = true, map, new GenericInternalRow(values))
   }
+
+  sealed trait Operation {
+    def value: String
+    def isSchedule: Boolean = this != Execute
+    def isExecute: Boolean = this != Schedule
+  }
+
+  /**
+   * schedule: schedule a new plan
+   */
+  case object Schedule extends Operation {
+    override def value: String = "schedule"
+  }
+
+  /**
+   * execute: if specific instants exist, execute them, otherwise execute all 
pending plans
+   */
+  case object Execute extends Operation {
+    override def value: String = "execute"
+  }
+
+  /**
+   * scheduleAndExecute: schedule a new plan and then execute it, if no plan 
is generated during
+   * schedule, execute all pending plans
+   */
+  case object ScheduleAndExecute extends Operation {
+    override def value: String = "scheduleandexecute"
+  }
+
+  object Operation {
+    private val ValueToEnumMap: Map[String, Operation with Product with 
Serializable] = Seq(Schedule, Execute, ScheduleAndExecute)
+      .map(enum => enum.value -> enum).toMap
+
+    def fromValue(value: String): Operation = {
+      ValueToEnumMap.getOrElse(value, throw new HoodieException(s"Invalid 
value ($value)"))
+    }
+  }
+
+  def fileterPendingInstantsAndGetOperation(pendingInstants: Seq[String], 
specificInstants: Option[String], op: Option[String]): (Seq[String], Operation) 
= {
+    specificInstants match {
+      case Some(inst) =>
+        op match {
+          case Some(o) =>
+            if (!Execute.value.equalsIgnoreCase(o)) {
+              throw new HoodieException("specific instants only can be used in 
'execute' op or not specific op")
+            }
+          case _ =>
+            // No op specified, set it as 'execute' with instants specified
+        }

Review Comment:
   91~98:
   ```
   if (op.exists(o => !Execute.value.equalsIgnoreCase(o)) {
       throw ....
   }
   ```



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