[7.5][ML][HLRC] Add FAILED state for data frame analytics (#49326) (#…

…49328)

Backport of #49326

client/rest-high-level/src/main/java/org/elasticsearch/client/ml/dataframe/DataFrameAnalyticsState.java

@@ -22,7 +22,7 @@
 import java.util.Locale;
 
 public enum DataFrameAnalyticsState {
-    STARTED, REINDEXING, ANALYZING, STOPPING, STOPPED, STARTING;
+    STARTED, REINDEXING, ANALYZING, STOPPING, STOPPED, STARTING, FAILED;
 
     public static DataFrameAnalyticsState fromString(String name) {
         return valueOf(name.trim().toUpperCase(Locale.ROOT));

client/rest-high-level/src/test/java/org/elasticsearch/client/ml/dataframe/DataFrameAnalyticsStateTests.java

@@ -0,0 +1,46 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.elasticsearch.client.ml.dataframe;
+
+import org.elasticsearch.test.ESTestCase;
+
+import static org.hamcrest.Matchers.equalTo;
+
+public class DataFrameAnalyticsStateTests extends ESTestCase {
+
+    public void testFromString() {
+        assertThat(DataFrameAnalyticsState.fromString("starting"), equalTo(DataFrameAnalyticsState.STARTING));
+        assertThat(DataFrameAnalyticsState.fromString("started"), equalTo(DataFrameAnalyticsState.STARTED));
+        assertThat(DataFrameAnalyticsState.fromString("reindexing"), equalTo(DataFrameAnalyticsState.REINDEXING));
+        assertThat(DataFrameAnalyticsState.fromString("analyzing"), equalTo(DataFrameAnalyticsState.ANALYZING));
+        assertThat(DataFrameAnalyticsState.fromString("stopping"), equalTo(DataFrameAnalyticsState.STOPPING));
+        assertThat(DataFrameAnalyticsState.fromString("stopped"), equalTo(DataFrameAnalyticsState.STOPPED));
+        assertThat(DataFrameAnalyticsState.fromString("failed"), equalTo(DataFrameAnalyticsState.FAILED));
+    }
+
+    public void testValue() {
+        assertThat(DataFrameAnalyticsState.STARTING.value(), equalTo("starting"));
+        assertThat(DataFrameAnalyticsState.STARTED.value(), equalTo("started"));
+        assertThat(DataFrameAnalyticsState.REINDEXING.value(), equalTo("reindexing"));
+        assertThat(DataFrameAnalyticsState.ANALYZING.value(), equalTo("analyzing"));
+        assertThat(DataFrameAnalyticsState.STOPPING.value(), equalTo("stopping"));
+        assertThat(DataFrameAnalyticsState.STOPPED.value(), equalTo("stopped"));
+        assertThat(DataFrameAnalyticsState.FAILED.value(), equalTo("failed"));
+    }
+}