Fix typo in RemoveProcessor (opensearch-project#11983)

* Fix typo in RemoveProcessor

Signed-off-by: Gao Binlong <gbinlong@amazon.com>

* Modify changelog

Signed-off-by: Gao Binlong <gbinlong@amazon.com>

---------

Signed-off-by: Gao Binlong <gbinlong@amazon.com>

Author: gaobinlong

CHANGELOG.md

@@ -103,7 +103,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add search query categorizer ([#10255](https://github.com/opensearch-project/OpenSearch/pull/10255))
 - Per request phase latency ([#10351](https://github.com/opensearch-project/OpenSearch/issues/10351))
 - Add cluster state stats ([#10670](https://github.com/opensearch-project/OpenSearch/pull/10670))
-- Remove ingest processor supports excluding fields ([#10967](https://github.com/opensearch-project/OpenSearch/pull/10967))
+- Remove ingest processor supports excluding fields ([#10967](https://github.com/opensearch-project/OpenSearch/pull/10967), [#11983](https://github.com/opensearch-project/OpenSearch/pull/11983))
 - [Tiered caching] Enabling serialization for IndicesRequestCache key object ([#10275](https://github.com/opensearch-project/OpenSearch/pull/10275))
 - [Tiered caching] Defining interfaces, listeners and extending IndicesRequestCache with Tiered cache support ([#10753](https://github.com/opensearch-project/OpenSearch/pull/10753))
 - [Remote cluster state] Restore cluster state version during remote state auto restore ([#10853](https://github.com/opensearch-project/OpenSearch/pull/10853))

modules/ingest-common/src/main/java/org/opensearch/ingest/common/RemoveProcessor.java

@@ -72,7 +72,7 @@ public final class RemoveProcessor extends AbstractProcessor {
     ) {
         super(tag, description);
         if (fields == null && excludeFields == null || fields != null && excludeFields != null) {
-            throw new IllegalArgumentException("ether fields and excludeFields must be set");
+            throw new IllegalArgumentException("either fields or excludeFields must be set");
         }
         if (fields != null) {
             this.fields = new ArrayList<>(fields);
@@ -188,7 +188,7 @@ public RemoveProcessor create(
             final Object excludeField = ConfigurationUtils.readOptionalObject(config, "exclude_field");
 
             if (field == null && excludeField == null || field != null && excludeField != null) {
-                throw newConfigurationException(TYPE, processorTag, "field", "ether field or exclude_field must be set");
+                throw newConfigurationException(TYPE, processorTag, "field", "either field or exclude_field must be set");
             }
 
             boolean ignoreMissing = ConfigurationUtils.readBooleanProperty(TYPE, processorTag, config, "ignore_missing", false);

modules/ingest-common/src/test/java/org/opensearch/ingest/common/RemoveProcessorFactoryTests.java

@@ -97,13 +97,13 @@ public void testCreateWithExcludeField() throws Exception {
             OpenSearchParseException.class,
             () -> factory.create(null, processorTag, null, config)
         );
-        assertThat(exception.getMessage(), equalTo("[field] ether field or exclude_field must be set"));
+        assertThat(exception.getMessage(), equalTo("[field] either field or exclude_field must be set"));
 
         Map<String, Object> config2 = new HashMap<>();
         config2.put("field", "field1");
         config2.put("exclude_field", "field2");
         exception = expectThrows(OpenSearchParseException.class, () -> factory.create(null, processorTag, null, config2));
-        assertThat(exception.getMessage(), equalTo("[field] ether field or exclude_field must be set"));
+        assertThat(exception.getMessage(), equalTo("[field] either field or exclude_field must be set"));
 
         Map<String, Object> config6 = new HashMap<>();
         config6.put("exclude_field", "exclude_field");

modules/ingest-common/src/test/java/org/opensearch/ingest/common/RemoveProcessorTests.java

@@ -203,7 +203,7 @@ public void testRemoveMetadataField() throws Exception {
 
     public void testCreateRemoveProcessorWithBothFieldsAndExcludeFields() throws Exception {
         assertThrows(
-            "ether fields and excludeFields must be set",
+            "either fields or excludeFields must be set",
             IllegalArgumentException.class,
             () -> new RemoveProcessor(randomAlphaOfLength(10), null, null, null, false)
         );
@@ -223,7 +223,7 @@ public void testCreateRemoveProcessorWithBothFieldsAndExcludeFields() throws Exc
         }
 
         assertThrows(
-            "ether fields and excludeFields must be set",
+            "either fields or excludeFields must be set",
             IllegalArgumentException.class,
             () -> new RemoveProcessor(randomAlphaOfLength(10), null, fields, excludeFields, false)
         );