Remove the ILMClient (#42817)

This commit removes the ILMClient class, which is a wrapper around the
transport client. This class is not used in the codebase and the
transport client is being removed.

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifecycle/client/ILMClient.java

@@ -1,165 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-
-package org.elasticsearch.xpack.core.indexlifecycle.client;
-
-import org.elasticsearch.action.ActionFuture;
-import org.elasticsearch.action.ActionListener;
-import org.elasticsearch.action.support.master.AcknowledgedResponse;
-import org.elasticsearch.client.ElasticsearchClient;
-import org.elasticsearch.xpack.core.indexlifecycle.ExplainLifecycleRequest;
-import org.elasticsearch.xpack.core.indexlifecycle.ExplainLifecycleResponse;
-import org.elasticsearch.xpack.core.indexlifecycle.StartILMRequest;
-import org.elasticsearch.xpack.core.indexlifecycle.StopILMRequest;
-import org.elasticsearch.xpack.core.indexlifecycle.action.DeleteLifecycleAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.ExplainLifecycleAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.GetLifecycleAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.GetStatusAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.PutLifecycleAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.RemoveIndexLifecyclePolicyAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.RetryAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.StartILMAction;
-import org.elasticsearch.xpack.core.indexlifecycle.action.StopILMAction;
-
-/**
- * A wrapper to elasticsearch clients that exposes all ILM related APIs
- */
-public class ILMClient {
-
-    private ElasticsearchClient client;
-
-    public ILMClient(ElasticsearchClient client) {
-        this.client = client;
-    }
-
-    /**
-     * Create or modify a lifecycle policy definition
-     */
-    public void putLifecyclePolicy(PutLifecycleAction.Request request, ActionListener<PutLifecycleAction.Response> listener) {
-        client.execute(PutLifecycleAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Create or modify a lifecycle policy definition
-     */
-    public ActionFuture<PutLifecycleAction.Response> putLifecyclePolicy(PutLifecycleAction.Request request) {
-        return client.execute(PutLifecycleAction.INSTANCE, request);
-    }
-
-    /**
-     * Get a lifecycle policy definition
-     */
-    public void getLifecyclePolicy(GetLifecycleAction.Request request, ActionListener<GetLifecycleAction.Response> listener) {
-        client.execute(GetLifecycleAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Get a lifecycle policy definition
-     */
-    public ActionFuture<GetLifecycleAction.Response> getLifecyclePolicy(GetLifecycleAction.Request request) {
-        return client.execute(GetLifecycleAction.INSTANCE, request);
-    }
-
-    /**
-     * Delete a lifecycle policy definition
-     */
-    public void deleteLifecyclePolicy(DeleteLifecycleAction.Request request, ActionListener<DeleteLifecycleAction.Response> listener) {
-        client.execute(DeleteLifecycleAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Delete a lifecycle policy definition
-     */
-    public ActionFuture<DeleteLifecycleAction.Response> deleteLifecyclePolicy(DeleteLifecycleAction.Request request) {
-        return client.execute(DeleteLifecycleAction.INSTANCE, request);
-    }
-
-    /**
-     * Explain the current lifecycle state for an index
-     */
-    public void explainLifecycle(ExplainLifecycleRequest request, ActionListener<ExplainLifecycleResponse> listener) {
-        client.execute(ExplainLifecycleAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Explain the current lifecycle state for an index
-     */
-    public ActionFuture<ExplainLifecycleResponse> explainLifecycle(ExplainLifecycleRequest request) {
-        return client.execute(ExplainLifecycleAction.INSTANCE, request);
-    }
-
-    /**
-     * Returns the current status of the ILM plugin
-     */
-    public void getStatus(GetStatusAction.Request request, ActionListener<GetStatusAction.Response> listener) {
-        client.execute(GetStatusAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Returns the current status of the ILM plugin
-     */
-    public ActionFuture<GetStatusAction.Response> getStatus(GetStatusAction.Request request) {
-        return client.execute(GetStatusAction.INSTANCE, request);
-    }
-
-    /**
-     * Removes index lifecycle management from an index
-     */
-    public void removeIndexLifecyclePolicy(RemoveIndexLifecyclePolicyAction.Request request,
-            ActionListener<RemoveIndexLifecyclePolicyAction.Response> listener) {
-        client.execute(RemoveIndexLifecyclePolicyAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Removes index lifecycle management from an index
-     */
-    public ActionFuture<RemoveIndexLifecyclePolicyAction.Response> removeIndexLifecyclePolicy(
-            RemoveIndexLifecyclePolicyAction.Request request) {
-        return client.execute(RemoveIndexLifecyclePolicyAction.INSTANCE, request);
-    }
-
-    /**
-     * Retries the policy for an index which is currently in ERROR
-     */
-    public void retryPolicy(RetryAction.Request request, ActionListener<RetryAction.Response> listener) {
-        client.execute(RetryAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Removes index lifecycle management from an index
-     */
-    public ActionFuture<RetryAction.Response> retryPolicy(RetryAction.Request request) {
-        return client.execute(RetryAction.INSTANCE, request);
-    }
-
-    /**
-     * Starts the ILM plugin
-     */
-    public void startILM(StartILMRequest request, ActionListener<AcknowledgedResponse> listener) {
-        client.execute(StartILMAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Starts the ILM plugin
-     */
-    public ActionFuture<AcknowledgedResponse> startILM(StartILMRequest request) {
-        return client.execute(StartILMAction.INSTANCE, request);
-    }
-
-    /**
-     * Stops the ILM plugin
-     */
-    public void stopILM(StopILMRequest request, ActionListener<AcknowledgedResponse> listener) {
-        client.execute(StopILMAction.INSTANCE, request, listener);
-    }
-
-    /**
-     * Stops the ILM plugin
-     */
-    public ActionFuture<AcknowledgedResponse> stopILM(StopILMRequest request) {
-        return client.execute(StopILMAction.INSTANCE, request);
-    }
-}