@project-sunbird/ext-framework-server
Version:
Extensible framework for sunbird extensions on server side
109 lines • 5.48 kB
JavaScript
/**
* @author Santhosh Vasabhaktula <santhosh@ilimi.in>
*/
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CassandraSchemaLoader = void 0;
const index_1 = require("./index");
const util_1 = require("../../util");
const schemaService_1 = require("./schemaService");
const util = require("util");
const logger_1 = require("../../logger");
const typescript_ioc_1 = require("typescript-ioc");
const InMemoryMetaDataProvider_1 = require("../../meta/InMemoryMetaDataProvider");
let CassandraSchemaLoader = class CassandraSchemaLoader {
constructor(config) {
this._config = config;
this.cassandraDB.initialize(config);
}
getType() {
return 'cassandra';
}
exists(pluginId, schema) {
return __awaiter(this, void 0, void 0, function* () {
// TODO: complete implementation
});
}
alter(pluginId, schema) {
return __awaiter(this, void 0, void 0, function* () {
// TODO: complete implementation
});
}
migrate(pluginId, schema) {
return __awaiter(this, void 0, void 0, function* () {
// TODO: complete implementation
});
}
create(pluginId, schema) {
return __awaiter(this, void 0, void 0, function* () {
logger_1.logger.info('loading schema for plugin: ', pluginId);
this.validateSchema(schema);
const keyspaceName = util_1.Util.generateId(pluginId, schema.keyspace_name);
this.schemaService.setSchema(pluginId, Object.assign({}, schema, { keyspace_name: keyspaceName }));
if (!schema.private)
yield this.metaDataProvider.updateMeta(pluginId, { cassandra_keyspace: keyspaceName });
this.dbConnection = yield this.cassandraDB.getConnectionByKeyspace(keyspaceName, schema.config);
for (const table of schema.column_families) {
const model = this.dbConnection.loadSchema(table.table_name, table);
const syncDBAsync = util.promisify(model.syncDB.bind(model));
yield syncDBAsync()
.then((result) => {
if (result) {
logger_1.logger.info(`cassandra schema updated successfully for "${pluginId}"`);
}
else {
logger_1.logger.info(`no Cassandra schema change detected for plugin "${pluginId}"!`);
}
})
.catch((err) => {
if (err)
throw new util_1.FrameworkError({ message: `"${pluginId}" : unable to sync database model with cassandra`, code: util_1.FrameworkErrors.DB_ERROR });
});
}
;
});
}
validateSchema(schema) {
if (!schema.column_families || !Array.isArray(schema.column_families)) {
throw new util_1.FrameworkError({ message: 'invalid cassandra schema! "column_families" not defined!', code: util_1.FrameworkErrors.DB_ERROR });
}
if (!schema.keyspace_name) {
throw new util_1.FrameworkError({ message: 'invalid cassandra schema! "keyspace_name" not defined!', code: util_1.FrameworkErrors.DB_ERROR });
}
}
};
exports.CassandraSchemaLoader = CassandraSchemaLoader;
__decorate([
typescript_ioc_1.Inject,
__metadata("design:type", InMemoryMetaDataProvider_1.InMemoryMetaDataProvider)
], CassandraSchemaLoader.prototype, "metaDataProvider", void 0);
__decorate([
typescript_ioc_1.Inject,
__metadata("design:type", schemaService_1.SchemaService)
], CassandraSchemaLoader.prototype, "schemaService", void 0);
__decorate([
typescript_ioc_1.Inject,
__metadata("design:type", index_1.CassandraDB)
], CassandraSchemaLoader.prototype, "cassandraDB", void 0);
exports.CassandraSchemaLoader = CassandraSchemaLoader = __decorate([
typescript_ioc_1.Singleton,
__metadata("design:paramtypes", [Object])
], CassandraSchemaLoader);
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