index.js

/**
 * (c) 2018 cepharum GmbH, Berlin, http://cepharum.de
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 cepharum GmbH
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * @author: cepharum
 */

module.exports = function() {
	const api = this;
	const logDebug = api.log( "hitchy:odem:debug" );
	const logError = api.log( "hitchy:odem:error" );

	return {
		initialize() {
			const { config, runtime: { models, services } } = api;

			// choose configured default adapter for storing model instances
			let adapter = ( config.database || {} ).default;
			if ( adapter ) {
				if ( !( adapter instanceof services.OdemAdapter ) ) {
					logError( "invalid adapter:", adapter );

					return Promise.reject( new Error( "invalid adapter rejected" ) );
				}

				logDebug( "discovering model definitions to be managed via %s with %j", adapter.constructor.name, adapter.options || adapter.config || adapter.id );
			} else {
				adapter = new services.OdemAdapterMemory();

				logDebug( "discovering model definitions to be managed via memory adapter by default" );
			}

			return ( adapter.onPrepared || Promise.resolve() )
				.then( () => services.OdemConverter.processModelDefinitions( models, adapter ) );
		}
	};
};