diffusion/src/internal/topic-update/set-stream.js

Diffusion JavaScript client

"use strict";
/**
 * @module TopicUpdate
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.SetStream = void 0;
var update_stream_request_1 = require("./../services/topic-update/update-stream-request");
var invalid_set_stream_1 = require("./../topic-update/invalid-set-stream");
var logger = require("./../util/logger");
var topic_update_1 = require("../../topic-update/topic-update");
var log = logger.create('diffusion.TopicUpdate');
/**
 * An update stream delegate that is used when a {@link set} operation has
 * completed successfully. A cached value is available.
 */
var SetStream = /** @class */ (function () {
    /**
     * Create a new SetStream instance
     *
     * @param streamServices   the stream services
     * @param options          the update stream options
     * @param stream           the stream that using this stream as a delegate
     * @param streamId         the stream ID
     * @param value            the cached value
     */
    function SetStream(streamServices, options, stream, streamId, value) {
        this.streamServices = streamServices;
        this.options = options;
        this.stream = stream;
        this.streamId = streamId;
        this.cache = value;
    }
    /**
     * @inheritdoc
     */
    SetStream.prototype.set = function (value) {
        var _this = this;
        this.options.checkOperation(value);
        return new Promise(function (resolve, reject) {
            var buffer = _this.options.toBuffer(_this.cache, value);
            _this.cache = value;
            _this.options.deltaService.send(new update_stream_request_1.UpdateStreamRequest(_this.streamId, buffer), function (err) {
                if (err) {
                    log.debug('Set update stream failed');
                    _this.stream.onSetFailed(err);
                    reject(err);
                }
                else {
                    _this.stream.onSetComplete(_this.streamId, _this.options.retainsValue, _this.options.supportsConflation);
                    resolve();
                }
            });
        });
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.get = function () {
        return this.cache;
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.validate = function () {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this.streamServices.CHECK_UPDATE_STREAM.send(_this.streamId, function (err) {
                if (err) {
                    log.debug('Validate update stream failed');
                    _this.stream.onValidateFailed(err);
                    reject(err);
                }
                else {
                    _this.stream.onValidateComplete(_this.streamId, _this.options.retainsValue, _this.options.supportsConflation);
                    resolve(topic_update_1.TopicCreationResult.EXISTS);
                }
            });
        });
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.onSetComplete = function () {
        // no-op
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.onSetFailed = function (err) {
        this.stream.setDelegate(new invalid_set_stream_1.InvalidSetStream(err, this.cache));
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.onValidateComplete = function () {
        // no-op
    };
    /**
     * @inheritdoc
     */
    SetStream.prototype.onValidateFailed = function (err) {
        this.stream.setDelegate(new invalid_set_stream_1.InvalidSetStream(err, this.cache));
    };
    return SetStream;
}());
exports.SetStream = SetStream;