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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */
package org.elasticsearch.client;

import org.elasticsearch.action.ActionListener;
import org.elasticsearch.client.watcher.DeactivateWatchRequest;
import org.elasticsearch.client.watcher.DeactivateWatchResponse;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.watcher.ActivateWatchRequest;
import org.elasticsearch.client.watcher.ActivateWatchResponse;
import org.elasticsearch.client.watcher.AckWatchRequest;
import org.elasticsearch.client.watcher.AckWatchResponse;
import org.elasticsearch.client.watcher.ExecuteWatchRequest;
import org.elasticsearch.client.watcher.ExecuteWatchResponse;
import org.elasticsearch.client.watcher.GetWatchRequest;
import org.elasticsearch.client.watcher.GetWatchResponse;
import org.elasticsearch.client.watcher.StartWatchServiceRequest;
import org.elasticsearch.client.watcher.StopWatchServiceRequest;
import org.elasticsearch.client.watcher.DeleteWatchRequest;
import org.elasticsearch.client.watcher.DeleteWatchResponse;
import org.elasticsearch.client.watcher.PutWatchRequest;
import org.elasticsearch.client.watcher.PutWatchResponse;
import org.elasticsearch.client.watcher.WatcherStatsRequest;
import org.elasticsearch.client.watcher.WatcherStatsResponse;

import java.io.IOException;

import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;

public final class WatcherClient {

    private final RestHighLevelClient restHighLevelClient;

    WatcherClient(RestHighLevelClient restHighLevelClient) {
        this.restHighLevelClient = restHighLevelClient;
    }

    /**
     * Start the watch service
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public AcknowledgedResponse startWatchService(StartWatchServiceRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(
                request, WatcherRequestConverters::startWatchService, options, AcknowledgedResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously start the watch service
     * See 
     * the docs for more.
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable startWatchServiceAsync(StartWatchServiceRequest request, RequestOptions options,
                                              ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(
                request, WatcherRequestConverters::startWatchService, options, AcknowledgedResponse::fromXContent, listener, emptySet());
    }

    /**
     * Stop the watch service
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public AcknowledgedResponse stopWatchService(StopWatchServiceRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(
                request, WatcherRequestConverters::stopWatchService, options, AcknowledgedResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously stop the watch service
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable stopWatchServiceAsync(StopWatchServiceRequest request, RequestOptions options,
                                             ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(
                request, WatcherRequestConverters::stopWatchService, options, AcknowledgedResponse::fromXContent, listener, emptySet());
    }

    /**
     * Put a watch into the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public PutWatchResponse putWatch(PutWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::putWatch, options,
            PutWatchResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously put a watch into the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable putWatchAsync(PutWatchRequest request, RequestOptions options,
                                     ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::putWatch, options,
            PutWatchResponse::fromXContent, listener, emptySet());
    }

    /**
     * Gets a watch from the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public GetWatchResponse getWatch(GetWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::getWatch, options,
            GetWatchResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously gets a watch into the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable getWatchAsync(GetWatchRequest request, RequestOptions options,
                                     ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::getWatch, options,
            GetWatchResponse::fromXContent, listener, emptySet());
    }

    /**
     * Deactivate an existing watch
     * See 
     *     the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public DeactivateWatchResponse deactivateWatch(DeactivateWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::deactivateWatch, options,
            DeactivateWatchResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously deactivate an existing watch
     * See 
     *     the docs for more.
     *
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable deactivateWatchAsync(DeactivateWatchRequest request, RequestOptions options,
                                            ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::deactivateWatch, options,
            DeactivateWatchResponse::fromXContent, listener, emptySet());
    }

    /**
     * Deletes a watch from the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public DeleteWatchResponse deleteWatch(DeleteWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::deleteWatch, options,
            DeleteWatchResponse::fromXContent, singleton(404));
    }

    /**
     * Asynchronously deletes a watch from the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable deleteWatchAsync(DeleteWatchRequest request, RequestOptions options, ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::deleteWatch, options,
            DeleteWatchResponse::fromXContent, listener, singleton(404));
    }

    /**
     * Acknowledges a watch.
     * See 
     * the docs for more information.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException if there is a problem sending the request or parsing back the response
     */
    public AckWatchResponse ackWatch(AckWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::ackWatch, options,
            AckWatchResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously acknowledges a watch.
     * See 
     * the docs for more information.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon completion of the request
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable ackWatchAsync(AckWatchRequest request, RequestOptions options, ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::ackWatch, options,
            AckWatchResponse::fromXContent, listener, emptySet());
    }

    /**
     * Activate a watch from the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public ActivateWatchResponse activateWatch(ActivateWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::activateWatch, options,
            ActivateWatchResponse::fromXContent, singleton(404));
    }

    /**
     * Asynchronously activates a watch from the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable activateWatchAsync(ActivateWatchRequest request, RequestOptions options,
                                          ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::activateWatch, options,
            ActivateWatchResponse::fromXContent, listener, singleton(404));
    }

    /**
     * Execute a watch on the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException if there is a problem sending the request or parsing the response
     */
    public ExecuteWatchResponse executeWatch(ExecuteWatchRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::executeWatch, options,
            ExecuteWatchResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously execute a watch on the cluster
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notifed upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable executeWatchAsync(ExecuteWatchRequest request, RequestOptions options,
                                         ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::executeWatch, options,
            ExecuteWatchResponse::fromXContent, listener, emptySet());
    }

    /**
     * Get the watcher stats
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @return the response
     * @throws IOException in case there is a problem sending the request or parsing back the response
     */
    public WatcherStatsResponse watcherStats(WatcherStatsRequest request, RequestOptions options) throws IOException {
        return restHighLevelClient.performRequestAndParseEntity(request, WatcherRequestConverters::watcherStats, options,
            WatcherStatsResponse::fromXContent, emptySet());
    }

    /**
     * Asynchronously get the watcher stats
     * See 
     * the docs for more.
     * @param request the request
     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
     * @param listener the listener to be notified upon request completion
     * @return cancellable that may be used to cancel the request
     */
    public Cancellable watcherStatsAsync(WatcherStatsRequest request, RequestOptions options,
                                         ActionListener listener) {
        return restHighLevelClient.performRequestAsyncAndParseEntity(request, WatcherRequestConverters::watcherStats, options,
            WatcherStatsResponse::fromXContent, listener, emptySet());
    }

}