From ab9a6c92a2988b122c526354f6cefa1f3b41c282 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Mon, 27 Nov 2023 23:33:35 +0000
Subject: [PATCH] Check if Index exists before max workflow check (#178)

* adding check to init GC index if absent before max workflow check

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>

* moved check if index exists earlier

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>

* added test and switched to if/else

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>

---------

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>
(cherry picked from commit d3ab0ef4be2dbcea066639152be57b380b4e07c4)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
---
 .../CreateWorkflowTransportAction.java        | 30 +++++++++++--------
 .../CreateWorkflowTransportActionTests.java   | 15 ++++++++++
 2 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/src/main/java/org/opensearch/flowframework/transport/CreateWorkflowTransportAction.java b/src/main/java/org/opensearch/flowframework/transport/CreateWorkflowTransportAction.java
index d4f6b3b3f..a77e7dd79 100644
--- a/src/main/java/org/opensearch/flowframework/transport/CreateWorkflowTransportAction.java
+++ b/src/main/java/org/opensearch/flowframework/transport/CreateWorkflowTransportAction.java
@@ -195,21 +195,25 @@ protected void doExecute(Task task, WorkflowRequest request, ActionListener<Work
      *  @param internalListener listener for search request
      */
     protected void checkMaxWorkflows(TimeValue requestTimeOut, Integer maxWorkflow, ActionListener<Boolean> internalListener) {
-        QueryBuilder query = QueryBuilders.matchAllQuery();
-        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder().query(query).size(0).timeout(requestTimeOut);
+        if (!flowFrameworkIndicesHandler.doesIndexExist(CommonValue.GLOBAL_CONTEXT_INDEX)) {
+            internalListener.onResponse(true);
+        } else {
+            QueryBuilder query = QueryBuilders.matchAllQuery();
+            SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder().query(query).size(0).timeout(requestTimeOut);
 
-        SearchRequest searchRequest = new SearchRequest(CommonValue.GLOBAL_CONTEXT_INDEX).source(searchSourceBuilder);
+            SearchRequest searchRequest = new SearchRequest(CommonValue.GLOBAL_CONTEXT_INDEX).source(searchSourceBuilder);
 
-        client.search(searchRequest, ActionListener.wrap(searchResponse -> {
-            if (searchResponse.getHits().getTotalHits().value >= maxWorkflow) {
-                internalListener.onResponse(false);
-            } else {
-                internalListener.onResponse(true);
-            }
-        }, exception -> {
-            logger.error("Unable to fetch the workflows {}", exception);
-            internalListener.onFailure(new FlowFrameworkException("Unable to fetch the workflows", RestStatus.BAD_REQUEST));
-        }));
+            client.search(searchRequest, ActionListener.wrap(searchResponse -> {
+                if (searchResponse.getHits().getTotalHits().value >= maxWorkflow) {
+                    internalListener.onResponse(false);
+                } else {
+                    internalListener.onResponse(true);
+                }
+            }, exception -> {
+                logger.error("Unable to fetch the workflows {}", exception);
+                internalListener.onFailure(new FlowFrameworkException("Unable to fetch the workflows", RestStatus.BAD_REQUEST));
+            }));
+        }
     }
 
     private void validateWorkflows(Template template) throws Exception {
diff --git a/src/test/java/org/opensearch/flowframework/transport/CreateWorkflowTransportActionTests.java b/src/test/java/org/opensearch/flowframework/transport/CreateWorkflowTransportActionTests.java
index 5492ad822..22d831f2b 100644
--- a/src/test/java/org/opensearch/flowframework/transport/CreateWorkflowTransportActionTests.java
+++ b/src/test/java/org/opensearch/flowframework/transport/CreateWorkflowTransportActionTests.java
@@ -34,6 +34,7 @@
 
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 
 import org.mockito.ArgumentCaptor;
 
@@ -198,6 +199,20 @@ public void testMaxWorkflow() {
         assertEquals(("Maximum workflows limit reached 1000"), exceptionCaptor.getValue().getMessage());
     }
 
+    public void testMaxWorkflowWithNoIndex() {
+        @SuppressWarnings("unchecked")
+        ActionListener<Boolean> listener = new ActionListener<Boolean>() {
+            @Override
+            public void onResponse(Boolean booleanResponse) {
+                assertTrue(booleanResponse);
+            }
+
+            @Override
+            public void onFailure(Exception e) {}
+        };
+        createWorkflowTransportAction.checkMaxWorkflows(new TimeValue(10, TimeUnit.SECONDS), 10, listener);
+    }
+
     public void testFailedToCreateNewWorkflow() {
         @SuppressWarnings("unchecked")
         ActionListener<WorkflowResponse> listener = mock(ActionListener.class);