@dolittle/sdk.events.handling/Distribution/Builders/EventHandlersModelBuilder.js

Dolittle is a decentralized, distributed, event-driven microservice platform built to harness the power of events.

"use strict";
// Copyright (c) Dolittle. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
Object.defineProperty(exports, "__esModule", { value: true });
exports.EventHandlersModelBuilder = void 0;
const EventHandlerProcessor_1 = require("../Internal/EventHandlerProcessor");
const EventHandlerBuilder_1 = require("./EventHandlerBuilder");
const EventHandlerClassBuilder_1 = require("./EventHandlerClassBuilder");
/**
 * Represents a builder that can build {@link EventHandlerProcessor} from an {@link IModel}.
 */
class EventHandlersModelBuilder {
    /**
     * Initialises a new instance of the {@link EventFiltersModelBuilder} class.
     * @param {IModel} _model - The built application model.
     * @param {IClientBuildResults} _buildResults - For keeping track of build results.
     * @param {IEventTypes} _eventTypes - For event types resolution.
     * @param {IServiceProviderBuilder} _bindings - For registering the bindings for the event handler classes.
     */
    constructor(_model, _buildResults, _eventTypes, _bindings) {
        this._model = _model;
        this._buildResults = _buildResults;
        this._eventTypes = _eventTypes;
        this._bindings = _bindings;
    }
    /**
     * Builds all the event handlers.
     * @returns {EventHandlerProcessor[]} The built event handlers.
     */
    build() {
        const builders = this._model.getProcessorBuilderBindings(EventHandlerBuilder_1.EventHandlerBuilder, EventHandlerClassBuilder_1.EventHandlerClassBuilder);
        const processors = [];
        for (const { processorBuilder } of builders) {
            const handler = processorBuilder.build(this._eventTypes, this._bindings, this._buildResults);
            if (handler !== undefined) {
                processors.push(new EventHandlerProcessor_1.EventHandlerProcessor(handler, this._eventTypes));
            }
        }
        return processors;
    }
}
exports.EventHandlersModelBuilder = EventHandlersModelBuilder;
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