Move MountSearchableActionRequest and Action to xpack/core (#53394)

This moves the classes needed to invoke the mount snapshot request to the
xpack/core module such that clients aiming to invoke the mount api don't need
to add a dependency on the xpack/searchable-snapshots module.

Author: andreidan

x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/action/MountSearchableSnapshotAction.java renamed to x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/searchablesnapshots/MountSearchableSnapshotAction.java

@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-package org.elasticsearch.xpack.searchablesnapshots.action;
+package org.elasticsearch.xpack.core.searchablesnapshots;
 
 import org.elasticsearch.action.ActionType;
 import org.elasticsearch.action.admin.cluster.snapshots.restore.RestoreSnapshotResponse;

x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/action/MountSearchableSnapshotRequest.java renamed to x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/searchablesnapshots/MountSearchableSnapshotRequest.java

@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-package org.elasticsearch.xpack.searchablesnapshots.action;
+package org.elasticsearch.xpack.core.searchablesnapshots;
 
 import org.elasticsearch.action.ActionRequestValidationException;
 import org.elasticsearch.action.support.master.MasterNodeRequest;
@@ -77,7 +77,7 @@ public MountSearchableSnapshotRequest(String mountedIndexName, String repository
         this.waitForCompletion = waitForCompletion;
     }
 
-    MountSearchableSnapshotRequest(StreamInput in) throws IOException {
+    public MountSearchableSnapshotRequest(StreamInput in) throws IOException {
         super(in);
         this.mountedIndexName = in.readString();
         this.repositoryName = in.readString();

x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/SearchableSnapshots.java

@@ -39,7 +39,7 @@
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.watcher.ResourceWatcherService;
 import org.elasticsearch.xpack.searchablesnapshots.action.ClearSearchableSnapshotsCacheAction;
-import org.elasticsearch.xpack.searchablesnapshots.action.MountSearchableSnapshotAction;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotAction;
 import org.elasticsearch.xpack.searchablesnapshots.action.SearchableSnapshotsStatsAction;
 import org.elasticsearch.xpack.searchablesnapshots.action.TransportClearSearchableSnapshotsCacheAction;
 import org.elasticsearch.xpack.searchablesnapshots.action.TransportMountSearchableSnapshotAction;

x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/action/TransportMountSearchableSnapshotAction.java

@@ -31,6 +31,8 @@
 import org.elasticsearch.tasks.Task;
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.transport.TransportService;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotAction;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotRequest;
 import org.elasticsearch.xpack.searchablesnapshots.SearchableSnapshots;
 
 import java.io.IOException;

x-pack/plugin/searchable-snapshots/src/main/java/org/elasticsearch/xpack/searchablesnapshots/rest/RestMountSearchableSnapshotAction.java

@@ -11,8 +11,8 @@
 import org.elasticsearch.rest.BaseRestHandler;
 import org.elasticsearch.rest.RestRequest;
 import org.elasticsearch.rest.action.RestToXContentListener;
-import org.elasticsearch.xpack.searchablesnapshots.action.MountSearchableSnapshotAction;
-import org.elasticsearch.xpack.searchablesnapshots.action.MountSearchableSnapshotRequest;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotAction;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotRequest;
 
 import java.io.IOException;
 import java.util.Collections;

x-pack/plugin/searchable-snapshots/src/test/java/org/elasticsearch/xpack/searchablesnapshots/SearchableSnapshotsIntegTests.java

@@ -27,8 +27,8 @@
 import org.elasticsearch.snapshots.SnapshotInfo;
 import org.elasticsearch.test.ESIntegTestCase;
 import org.elasticsearch.xpack.core.searchablesnapshots.SearchableSnapshotShardStats;
-import org.elasticsearch.xpack.searchablesnapshots.action.MountSearchableSnapshotAction;
-import org.elasticsearch.xpack.searchablesnapshots.action.MountSearchableSnapshotRequest;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotAction;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotRequest;
 import org.elasticsearch.xpack.searchablesnapshots.action.SearchableSnapshotsStatsAction;
 import org.elasticsearch.xpack.searchablesnapshots.action.SearchableSnapshotsStatsRequest;
 import org.elasticsearch.xpack.searchablesnapshots.action.SearchableSnapshotsStatsResponse;

x-pack/plugin/searchable-snapshots/src/test/java/org/elasticsearch/xpack/searchablesnapshots/action/MountSearchableSnapshotRequestTests.java

@@ -11,6 +11,7 @@
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.test.AbstractWireSerializingTestCase;
+import org.elasticsearch.xpack.core.searchablesnapshots.MountSearchableSnapshotRequest;
 
 import java.util.Arrays;