109 lines
2.9 KiB
JavaScript
109 lines
2.9 KiB
JavaScript
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var uuid = require('uuid');
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var EventStoreNodeConnection = require('./eventStoreNodeConnection');
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var StaticEndpointDiscoverer = require('./core/staticEndpointDiscoverer');
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var NoopLogger = require('./common/log/noopLogger');
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var EventData = require('./eventData');
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var results = require('./results');
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var UserCredentials = require('./systemData/userCredentials');
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var defaultConnectionSettings = {
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log: new NoopLogger(),
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verboseLogging: false,
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maxQueueSize: 5000,
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maxConcurrentItems: 5000,
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maxRetries: 10,
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maxReconnections: 10,
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requireMaster: true,
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reconnectionDelay: 100,
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operationTimeout: 7*1000,
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operationTimeoutCheckPeriod: 1000,
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defaultUserCredentials: null,
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useSslConnection: false,
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targetHost: null,
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validateServer: false,
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failOnNoServerResponse: false,
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heartbeatInterval: 750,
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heartbeatTimeout: 1500,
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clientConnectionTimeout: 1000
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};
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const expectedVersion = {
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any: -2,
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noStream: -1,
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emptyStream: -1
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};
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const positions = {
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start: new results.Position(0, 0),
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end: new results.Position(-1, -1)
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};
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/**
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* @param {string} eventId
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* @param {object} data
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* @param {object} [metadata]
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* @param {string} [type]
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* @returns {EventData}
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*/
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function jsonEventDataFactory(eventId, data, metadata, type) {
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if (!data || typeof data !== 'object') throw new TypeError("data must be an object.");
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var d = new Buffer(JSON.stringify(data));
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var m = metadata ? new Buffer(JSON.stringify(metadata)) : null;
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return new EventData(eventId, type || data.constructor.name, true, d, m);
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}
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/**
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* @param {string} eventId
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* @param {string} type
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* @param {boolean} isJson
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* @param {Buffer} data
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* @param {Buffer} [metadata]
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* @returns {EventData}
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*/
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function eventDataFactory(eventId, type, isJson, data, metadata) {
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return new EventData(eventId, type, isJson, data, metadata);
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}
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function merge(a,b) {
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var c = {};
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Object.getOwnPropertyNames(a).forEach(function(k) {
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c[k] = a[k];
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});
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Object.getOwnPropertyNames(b).forEach(function(k) {
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c[k] = b[k];
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});
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return c;
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}
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/**
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* Create an EventStore connection
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* @param {object} tcpEndpoint
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* @param {object} settings
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* @returns {EventStoreNodeConnection}
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*/
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function connectionFactory(tcpEndpoint, settings) {
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var mergedSettings = merge(defaultConnectionSettings, settings);
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var endpointDiscoverer = new StaticEndpointDiscoverer(tcpEndpoint, settings.useSslConnection);
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var connectionName = null;
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return new EventStoreNodeConnection(mergedSettings, endpointDiscoverer, connectionName);
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}
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module.exports = connectionFactory;
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module.exports.expectedVersion = expectedVersion;
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module.exports.createEventData = eventDataFactory;
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module.exports.createJsonEventData = jsonEventDataFactory;
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module.exports.positions = positions;
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/**
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* @param {string} username
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* @param {string} password
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* @returns {UserCredentials}
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*/
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module.exports.createUserCredentials = function(username, password) {
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return new UserCredentials(username, password);
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};
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