azurite
Version:
An open source Azure Storage API compatible server
68 lines • 2.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const operation_1 = tslib_1.__importDefault(require("../artifacts/operation"));
const specifications_1 = tslib_1.__importDefault(require("../artifacts/specifications"));
const OperationMismatchError_1 = tslib_1.__importDefault(require("../errors/OperationMismatchError"));
const handlerMappers_1 = tslib_1.__importDefault(require("../handlers/handlerMappers"));
/**
* Auto generated. HandlerMiddlewareFactory will accept handlers and create handler middleware.
*
* @export
* @class HandlerMiddlewareFactory
*/
class HandlerMiddlewareFactory {
/**
* Creates an instance of HandlerMiddlewareFactory.
* Accept handlers and create handler middleware.
*
* @param {IHandlers} handlers Handlers implemented handler interfaces
* @param {ILogger} logger A valid logger
* @memberof HandlerMiddlewareFactory
*/
constructor(handlers, logger) {
this.handlers = handlers;
this.logger = logger;
}
/**
* Creates a handler middleware from input handlers.
*
* @memberof HandlerMiddlewareFactory
*/
createHandlerMiddleware() {
return (context, next) => {
this.logger.info(`HandlerMiddleware: DeserializedParameters=${JSON.stringify(context.handlerParameters, (key, value) => {
if (key === "body") {
return "ReadableStream";
}
return value;
})}`, context.contextID);
if (context.operation === undefined) {
const handlerError = new OperationMismatchError_1.default();
this.logger.error(`HandlerMiddleware: ${handlerError.message}`, context.contextID);
return next(handlerError);
}
if (specifications_1.default[context.operation] === undefined) {
this.logger.warn(`HandlerMiddleware: cannot find handler for operation ${operation_1.default[context.operation]}`);
}
// We assume handlerPath always exists for every generated operation in generated code
const handlerPath = (0, handlerMappers_1.default)(context.operation);
const args = [];
for (const arg of handlerPath.arguments) {
args.push(context.handlerParameters[arg]);
}
args.push(context);
const handler = this.handlers[handlerPath.handler];
const handlerMethod = handler[handlerPath.method];
handlerMethod
.apply(handler, args)
.then((response) => {
context.handlerResponses = response;
})
.then(next)
.catch(next);
};
}
}
exports.default = HandlerMiddlewareFactory;
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