UNPKG

azure-arm-datalake-analytics

Version:

Microsoft Azure Data Lake Analytics Management Client Library for node

788 lines (764 loc) 31.6 kB
/* * Copyright (c) Microsoft Corporation. All rights reserved. * Licensed under the MIT License. See License.txt in the project root for * license information. * * Code generated by Microsoft (R) AutoRest Code Generator. * Changes may cause incorrect behavior and will be lost if the code is * regenerated. */ 'use strict'; const msRest = require('ms-rest'); const msRestAzure = require('ms-rest-azure'); const WebResource = msRest.WebResource; /** * Lists all recurrences. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * list of recurrences. The startDateTime and endDateTime can be no more than * 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get the list of * recurrences. The startDateTime and endDateTime can be no more than 30 days * apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} callback - The callback. * * @returns {function} callback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformationListResult} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ function _list(accountName, options, callback) { /* jshint validthis: true */ let client = this.client; if(!callback && typeof options === 'function') { callback = options; options = null; } if (!callback) { throw new Error('callback cannot be null.'); } let startDateTime = (options && options.startDateTime !== undefined) ? options.startDateTime : undefined; let endDateTime = (options && options.endDateTime !== undefined) ? options.endDateTime : undefined; // Validate try { if (accountName === null || accountName === undefined || typeof accountName.valueOf() !== 'string') { throw new Error('accountName cannot be null or undefined and it must be of type string.'); } if (this.client.adlaJobDnsSuffix === null || this.client.adlaJobDnsSuffix === undefined || typeof this.client.adlaJobDnsSuffix.valueOf() !== 'string') { throw new Error('this.client.adlaJobDnsSuffix cannot be null or undefined and it must be of type string.'); } if (startDateTime && !(startDateTime instanceof Date || (typeof startDateTime.valueOf() === 'string' && !isNaN(Date.parse(startDateTime))))) { throw new Error('startDateTime must be of type date.'); } if (endDateTime && !(endDateTime instanceof Date || (typeof endDateTime.valueOf() === 'string' && !isNaN(Date.parse(endDateTime))))) { throw new Error('endDateTime must be of type date.'); } if (this.client.apiVersion === null || this.client.apiVersion === undefined || typeof this.client.apiVersion.valueOf() !== 'string') { throw new Error('this.client.apiVersion cannot be null or undefined and it must be of type string.'); } if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') { throw new Error('this.client.acceptLanguage must be of type string.'); } } catch (error) { return callback(error); } // Construct URL let baseUrl = this.client.baseUri; let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'recurrences'; requestUrl = requestUrl.replace('{accountName}', accountName); requestUrl = requestUrl.replace('{adlaJobDnsSuffix}', this.client.adlaJobDnsSuffix); let queryParameters = []; if (startDateTime !== null && startDateTime !== undefined) { queryParameters.push('startDateTime=' + encodeURIComponent(client.serializeObject(startDateTime))); } if (endDateTime !== null && endDateTime !== undefined) { queryParameters.push('endDateTime=' + encodeURIComponent(client.serializeObject(endDateTime))); } queryParameters.push('api-version=' + encodeURIComponent(this.client.apiVersion)); if (queryParameters.length > 0) { requestUrl += '?' + queryParameters.join('&'); } // Create HTTP transport objects let httpRequest = new WebResource(); httpRequest.method = 'GET'; httpRequest.url = requestUrl; httpRequest.headers = {}; // Set Headers httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8'; if (this.client.generateClientRequestId) { httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid(); } if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) { httpRequest.headers['accept-language'] = this.client.acceptLanguage; } if(options) { for(let headerName in options['customHeaders']) { if (options['customHeaders'].hasOwnProperty(headerName)) { httpRequest.headers[headerName] = options['customHeaders'][headerName]; } } } httpRequest.body = null; // Send Request return client.pipeline(httpRequest, (err, response, responseBody) => { if (err) { return callback(err); } let statusCode = response.statusCode; if (statusCode !== 200) { let error = new Error(responseBody); error.statusCode = response.statusCode; error.request = msRest.stripRequest(httpRequest); error.response = msRest.stripResponse(response); if (responseBody === '') responseBody = null; let parsedErrorResponse; try { parsedErrorResponse = JSON.parse(responseBody); if (parsedErrorResponse) { if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error; if (parsedErrorResponse.code) error.code = parsedErrorResponse.code; if (parsedErrorResponse.message) error.message = parsedErrorResponse.message; } if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) { let resultMapper = new client.models['CloudError']().mapper(); error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body'); } } catch (defaultError) { error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` + `- "${responseBody}" for the default response.`; return callback(error); } return callback(error); } // Create Result let result = null; if (responseBody === '') responseBody = null; // Deserialize Response if (statusCode === 200) { let parsedResponse = null; try { parsedResponse = JSON.parse(responseBody); result = JSON.parse(responseBody); if (parsedResponse !== null && parsedResponse !== undefined) { let resultMapper = new client.models['JobRecurrenceInformationListResult']().mapper(); result = client.deserialize(resultMapper, parsedResponse, 'result'); } } catch (error) { let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`); deserializationError.request = msRest.stripRequest(httpRequest); deserializationError.response = msRest.stripResponse(response); return callback(deserializationError); } } return callback(null, result, httpRequest, response); }); } /** * Gets the recurrence information for the specified recurrence ID. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {uuid} recurrenceIdentity Recurrence ID. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * recurrence and aggregate its data. The startDateTime and endDateTime can be * no more than 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get recurrence * and aggregate its data. The startDateTime and endDateTime can be no more * than 30 days apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} callback - The callback. * * @returns {function} callback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformation} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ function _get(accountName, recurrenceIdentity, options, callback) { /* jshint validthis: true */ let client = this.client; if(!callback && typeof options === 'function') { callback = options; options = null; } if (!callback) { throw new Error('callback cannot be null.'); } let startDateTime = (options && options.startDateTime !== undefined) ? options.startDateTime : undefined; let endDateTime = (options && options.endDateTime !== undefined) ? options.endDateTime : undefined; // Validate try { if (accountName === null || accountName === undefined || typeof accountName.valueOf() !== 'string') { throw new Error('accountName cannot be null or undefined and it must be of type string.'); } if (this.client.adlaJobDnsSuffix === null || this.client.adlaJobDnsSuffix === undefined || typeof this.client.adlaJobDnsSuffix.valueOf() !== 'string') { throw new Error('this.client.adlaJobDnsSuffix cannot be null or undefined and it must be of type string.'); } if (recurrenceIdentity === null || recurrenceIdentity === undefined || typeof recurrenceIdentity.valueOf() !== 'string' || !msRest.isValidUuid(recurrenceIdentity)) { throw new Error('recurrenceIdentity cannot be null or undefined and it must be of type string and must be a valid uuid.'); } if (startDateTime && !(startDateTime instanceof Date || (typeof startDateTime.valueOf() === 'string' && !isNaN(Date.parse(startDateTime))))) { throw new Error('startDateTime must be of type date.'); } if (endDateTime && !(endDateTime instanceof Date || (typeof endDateTime.valueOf() === 'string' && !isNaN(Date.parse(endDateTime))))) { throw new Error('endDateTime must be of type date.'); } if (this.client.apiVersion === null || this.client.apiVersion === undefined || typeof this.client.apiVersion.valueOf() !== 'string') { throw new Error('this.client.apiVersion cannot be null or undefined and it must be of type string.'); } if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') { throw new Error('this.client.acceptLanguage must be of type string.'); } } catch (error) { return callback(error); } // Construct URL let baseUrl = this.client.baseUri; let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'recurrences/{recurrenceIdentity}'; requestUrl = requestUrl.replace('{accountName}', accountName); requestUrl = requestUrl.replace('{adlaJobDnsSuffix}', this.client.adlaJobDnsSuffix); requestUrl = requestUrl.replace('{recurrenceIdentity}', encodeURIComponent(recurrenceIdentity.toString())); let queryParameters = []; if (startDateTime !== null && startDateTime !== undefined) { queryParameters.push('startDateTime=' + encodeURIComponent(client.serializeObject(startDateTime))); } if (endDateTime !== null && endDateTime !== undefined) { queryParameters.push('endDateTime=' + encodeURIComponent(client.serializeObject(endDateTime))); } queryParameters.push('api-version=' + encodeURIComponent(this.client.apiVersion)); if (queryParameters.length > 0) { requestUrl += '?' + queryParameters.join('&'); } // Create HTTP transport objects let httpRequest = new WebResource(); httpRequest.method = 'GET'; httpRequest.url = requestUrl; httpRequest.headers = {}; // Set Headers httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8'; if (this.client.generateClientRequestId) { httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid(); } if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) { httpRequest.headers['accept-language'] = this.client.acceptLanguage; } if(options) { for(let headerName in options['customHeaders']) { if (options['customHeaders'].hasOwnProperty(headerName)) { httpRequest.headers[headerName] = options['customHeaders'][headerName]; } } } httpRequest.body = null; // Send Request return client.pipeline(httpRequest, (err, response, responseBody) => { if (err) { return callback(err); } let statusCode = response.statusCode; if (statusCode !== 200) { let error = new Error(responseBody); error.statusCode = response.statusCode; error.request = msRest.stripRequest(httpRequest); error.response = msRest.stripResponse(response); if (responseBody === '') responseBody = null; let parsedErrorResponse; try { parsedErrorResponse = JSON.parse(responseBody); if (parsedErrorResponse) { if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error; if (parsedErrorResponse.code) error.code = parsedErrorResponse.code; if (parsedErrorResponse.message) error.message = parsedErrorResponse.message; } if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) { let resultMapper = new client.models['CloudError']().mapper(); error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body'); } } catch (defaultError) { error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` + `- "${responseBody}" for the default response.`; return callback(error); } return callback(error); } // Create Result let result = null; if (responseBody === '') responseBody = null; // Deserialize Response if (statusCode === 200) { let parsedResponse = null; try { parsedResponse = JSON.parse(responseBody); result = JSON.parse(responseBody); if (parsedResponse !== null && parsedResponse !== undefined) { let resultMapper = new client.models['JobRecurrenceInformation']().mapper(); result = client.deserialize(resultMapper, parsedResponse, 'result'); } } catch (error) { let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`); deserializationError.request = msRest.stripRequest(httpRequest); deserializationError.response = msRest.stripResponse(response); return callback(deserializationError); } } return callback(null, result, httpRequest, response); }); } /** * Lists all recurrences. * * @param {string} nextPageLink The NextLink from the previous successful call * to List operation. * * @param {object} [options] Optional Parameters. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} callback - The callback. * * @returns {function} callback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformationListResult} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ function _listNext(nextPageLink, options, callback) { /* jshint validthis: true */ let client = this.client; if(!callback && typeof options === 'function') { callback = options; options = null; } if (!callback) { throw new Error('callback cannot be null.'); } // Validate try { if (nextPageLink === null || nextPageLink === undefined || typeof nextPageLink.valueOf() !== 'string') { throw new Error('nextPageLink cannot be null or undefined and it must be of type string.'); } if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') { throw new Error('this.client.acceptLanguage must be of type string.'); } } catch (error) { return callback(error); } // Construct URL let requestUrl = '{nextLink}'; requestUrl = requestUrl.replace('{nextLink}', nextPageLink); // Create HTTP transport objects let httpRequest = new WebResource(); httpRequest.method = 'GET'; httpRequest.url = requestUrl; httpRequest.headers = {}; // Set Headers httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8'; if (this.client.generateClientRequestId) { httpRequest.headers['x-ms-client-request-id'] = msRestAzure.generateUuid(); } if (this.client.acceptLanguage !== undefined && this.client.acceptLanguage !== null) { httpRequest.headers['accept-language'] = this.client.acceptLanguage; } if(options) { for(let headerName in options['customHeaders']) { if (options['customHeaders'].hasOwnProperty(headerName)) { httpRequest.headers[headerName] = options['customHeaders'][headerName]; } } } httpRequest.body = null; // Send Request return client.pipeline(httpRequest, (err, response, responseBody) => { if (err) { return callback(err); } let statusCode = response.statusCode; if (statusCode !== 200) { let error = new Error(responseBody); error.statusCode = response.statusCode; error.request = msRest.stripRequest(httpRequest); error.response = msRest.stripResponse(response); if (responseBody === '') responseBody = null; let parsedErrorResponse; try { parsedErrorResponse = JSON.parse(responseBody); if (parsedErrorResponse) { if (parsedErrorResponse.error) parsedErrorResponse = parsedErrorResponse.error; if (parsedErrorResponse.code) error.code = parsedErrorResponse.code; if (parsedErrorResponse.message) error.message = parsedErrorResponse.message; } if (parsedErrorResponse !== null && parsedErrorResponse !== undefined) { let resultMapper = new client.models['CloudError']().mapper(); error.body = client.deserialize(resultMapper, parsedErrorResponse, 'error.body'); } } catch (defaultError) { error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` + `- "${responseBody}" for the default response.`; return callback(error); } return callback(error); } // Create Result let result = null; if (responseBody === '') responseBody = null; // Deserialize Response if (statusCode === 200) { let parsedResponse = null; try { parsedResponse = JSON.parse(responseBody); result = JSON.parse(responseBody); if (parsedResponse !== null && parsedResponse !== undefined) { let resultMapper = new client.models['JobRecurrenceInformationListResult']().mapper(); result = client.deserialize(resultMapper, parsedResponse, 'result'); } } catch (error) { let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`); deserializationError.request = msRest.stripRequest(httpRequest); deserializationError.response = msRest.stripResponse(response); return callback(deserializationError); } } return callback(null, result, httpRequest, response); }); } /** Class representing a Recurrence. */ class Recurrence { /** * Create a Recurrence. * @param {DataLakeAnalyticsJobManagementClient} client Reference to the service client. */ constructor(client) { this.client = client; this._list = _list; this._get = _get; this._listNext = _listNext; } /** * Lists all recurrences. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * list of recurrences. The startDateTime and endDateTime can be no more than * 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get the list of * recurrences. The startDateTime and endDateTime can be no more than 30 days * apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @returns {Promise} A promise is returned * * @resolve {HttpOperationResponse<JobRecurrenceInformationListResult>} - The deserialized result object. * * @reject {Error} - The error object. */ listWithHttpOperationResponse(accountName, options) { let client = this.client; let self = this; return new Promise((resolve, reject) => { self._list(accountName, options, (err, result, request, response) => { let httpOperationResponse = new msRest.HttpOperationResponse(request, response); httpOperationResponse.body = result; if (err) { reject(err); } else { resolve(httpOperationResponse); } return; }); }); } /** * Lists all recurrences. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * list of recurrences. The startDateTime and endDateTime can be no more than * 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get the list of * recurrences. The startDateTime and endDateTime can be no more than 30 days * apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} [optionalCallback] - The optional callback. * * @returns {function|Promise} If a callback was passed as the last parameter * then it returns the callback else returns a Promise. * * {Promise} A promise is returned * * @resolve {JobRecurrenceInformationListResult} - The deserialized result object. * * @reject {Error} - The error object. * * {function} optionalCallback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformationListResult} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ list(accountName, options, optionalCallback) { let client = this.client; let self = this; if (!optionalCallback && typeof options === 'function') { optionalCallback = options; options = null; } if (!optionalCallback) { return new Promise((resolve, reject) => { self._list(accountName, options, (err, result, request, response) => { if (err) { reject(err); } else { resolve(result); } return; }); }); } else { return self._list(accountName, options, optionalCallback); } } /** * Gets the recurrence information for the specified recurrence ID. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {uuid} recurrenceIdentity Recurrence ID. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * recurrence and aggregate its data. The startDateTime and endDateTime can be * no more than 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get recurrence * and aggregate its data. The startDateTime and endDateTime can be no more * than 30 days apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @returns {Promise} A promise is returned * * @resolve {HttpOperationResponse<JobRecurrenceInformation>} - The deserialized result object. * * @reject {Error} - The error object. */ getWithHttpOperationResponse(accountName, recurrenceIdentity, options) { let client = this.client; let self = this; return new Promise((resolve, reject) => { self._get(accountName, recurrenceIdentity, options, (err, result, request, response) => { let httpOperationResponse = new msRest.HttpOperationResponse(request, response); httpOperationResponse.body = result; if (err) { reject(err); } else { resolve(httpOperationResponse); } return; }); }); } /** * Gets the recurrence information for the specified recurrence ID. * * @param {string} accountName The Azure Data Lake Analytics account to execute * job operations on. * * @param {uuid} recurrenceIdentity Recurrence ID. * * @param {object} [options] Optional Parameters. * * @param {date} [options.startDateTime] The start date for when to get the * recurrence and aggregate its data. The startDateTime and endDateTime can be * no more than 30 days apart. * * @param {date} [options.endDateTime] The end date for when to get recurrence * and aggregate its data. The startDateTime and endDateTime can be no more * than 30 days apart. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} [optionalCallback] - The optional callback. * * @returns {function|Promise} If a callback was passed as the last parameter * then it returns the callback else returns a Promise. * * {Promise} A promise is returned * * @resolve {JobRecurrenceInformation} - The deserialized result object. * * @reject {Error} - The error object. * * {function} optionalCallback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformation} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ get(accountName, recurrenceIdentity, options, optionalCallback) { let client = this.client; let self = this; if (!optionalCallback && typeof options === 'function') { optionalCallback = options; options = null; } if (!optionalCallback) { return new Promise((resolve, reject) => { self._get(accountName, recurrenceIdentity, options, (err, result, request, response) => { if (err) { reject(err); } else { resolve(result); } return; }); }); } else { return self._get(accountName, recurrenceIdentity, options, optionalCallback); } } /** * Lists all recurrences. * * @param {string} nextPageLink The NextLink from the previous successful call * to List operation. * * @param {object} [options] Optional Parameters. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @returns {Promise} A promise is returned * * @resolve {HttpOperationResponse<JobRecurrenceInformationListResult>} - The deserialized result object. * * @reject {Error} - The error object. */ listNextWithHttpOperationResponse(nextPageLink, options) { let client = this.client; let self = this; return new Promise((resolve, reject) => { self._listNext(nextPageLink, options, (err, result, request, response) => { let httpOperationResponse = new msRest.HttpOperationResponse(request, response); httpOperationResponse.body = result; if (err) { reject(err); } else { resolve(httpOperationResponse); } return; }); }); } /** * Lists all recurrences. * * @param {string} nextPageLink The NextLink from the previous successful call * to List operation. * * @param {object} [options] Optional Parameters. * * @param {object} [options.customHeaders] Headers that will be added to the * request * * @param {function} [optionalCallback] - The optional callback. * * @returns {function|Promise} If a callback was passed as the last parameter * then it returns the callback else returns a Promise. * * {Promise} A promise is returned * * @resolve {JobRecurrenceInformationListResult} - The deserialized result object. * * @reject {Error} - The error object. * * {function} optionalCallback(err, result, request, response) * * {Error} err - The Error object if an error occurred, null otherwise. * * {object} [result] - The deserialized result object if an error did not occur. * See {@link JobRecurrenceInformationListResult} for more * information. * * {object} [request] - The HTTP Request object if an error did not occur. * * {stream} [response] - The HTTP Response stream if an error did not occur. */ listNext(nextPageLink, options, optionalCallback) { let client = this.client; let self = this; if (!optionalCallback && typeof options === 'function') { optionalCallback = options; options = null; } if (!optionalCallback) { return new Promise((resolve, reject) => { self._listNext(nextPageLink, options, (err, result, request, response) => { if (err) { reject(err); } else { resolve(result); } return; }); }); } else { return self._listNext(nextPageLink, options, optionalCallback); } } } module.exports = Recurrence;