handle ignore unavailable for datastream related

Author: albertzaharovits

server/src/main/java/org/elasticsearch/cluster/metadata/IndexNameExpressionResolver.java

@@ -366,8 +366,13 @@ Index[] concreteIndices(Context context, String... indexExpressions) {
                     continue;
                 }
             } else if (indexAbstraction.isDataStreamRelated() && context.includeDataStreams() == false) {
-                excludedDataStreams = true;
-                continue;
+                if (options.ignoreUnavailable() == false) {
+                    assert options.expandWildcardExpressions() == false;
+                    throw notFoundException(expression);
+                } else {
+                    excludedDataStreams = true;
+                    continue;
+                }
             }
 
             if (indexAbstraction.getType() == Type.ALIAS && context.isResolveToWriteIndex()) {