From 85c230d62b3068ff68ca33ae68f500f39402556d Mon Sep 17 00:00:00 2001
From: bansvaru <bansvaru@amazon.com>
Date: Thu, 27 Jul 2023 18:15:05 +0530
Subject: [PATCH] Support wildcard/regex for indices param in
 _remotestore/_restore

Signed-off-by: bansvaru <bansvaru@amazon.com>
---
 .../main/java/org/opensearch/snapshots/RestoreService.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/server/src/main/java/org/opensearch/snapshots/RestoreService.java b/server/src/main/java/org/opensearch/snapshots/RestoreService.java
index d7e89172c5837..693003aec578d 100644
--- a/server/src/main/java/org/opensearch/snapshots/RestoreService.java
+++ b/server/src/main/java/org/opensearch/snapshots/RestoreService.java
@@ -227,7 +227,12 @@ public ClusterState execute(ClusterState currentState) {
 
                 List<String> indicesToBeRestored = new ArrayList<>();
                 int totalShards = 0;
-                for (String index : request.indices()) {
+                List<String> filteredIndices = filterIndices(
+                    new ArrayList<>(currentState.metadata().indices().keySet()),
+                    request.indices(),
+                    IndicesOptions.LENIENT_EXPAND_OPEN_HIDDEN
+                );
+                for (String index : filteredIndices) {
                     IndexMetadata currentIndexMetadata = currentState.metadata().index(index);
                     if (currentIndexMetadata == null) {
                         // ToDo: Handle index metadata does not exist case. (GitHub #3457)