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author | 2017-08-07 11:39:39 +0800 | |
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committer | 2017-08-07 11:39:39 +0800 | |
commit | 21d72c4a80fe2937d0c4ddd20624b27adbcd989b (patch) | |
tree | e5013ee12f74f8452e01cbff16e7b0158bc456cb /common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js | |
parent | f533e73e2ae32e010b16abdcf7985abaf31ab843 (diff) |
Upload the ESR GUI seed code
Issue-ID: AAI-68
Change-Id: Ia50ce0570c2fabecd77199d4e8454f56fe587c4e
Signed-off-by: lizi00164331 <li.zi30@zte.com.cn>
Diffstat (limited to 'common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js')
-rw-r--r-- | common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js b/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js new file mode 100644 index 0000000..c17330d --- /dev/null +++ b/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js @@ -0,0 +1,386 @@ +/*! + * Module dependencies. + */ + +var MongooseConnection = require('../../connection'); +var mongo = require('mongodb'); +var Db = mongo.Db; +var Server = mongo.Server; +var Mongos = mongo.Mongos; +var STATES = require('../../connectionstate'); +var ReplSetServers = mongo.ReplSet; +var DisconnectedError = require('../../error/disconnected'); + +/** + * A [node-mongodb-native](https://github.com/mongodb/node-mongodb-native) connection implementation. + * + * @inherits Connection + * @api private + */ + +function NativeConnection() { + MongooseConnection.apply(this, arguments); + this._listening = false; +} + +/** + * Expose the possible connection states. + * @api public + */ + +NativeConnection.STATES = STATES; + +/*! + * Inherits from Connection. + */ + +NativeConnection.prototype.__proto__ = MongooseConnection.prototype; + +/** + * Opens the connection to MongoDB. + * + * @param {Function} fn + * @return {Connection} this + * @api private + */ + +NativeConnection.prototype.doOpen = function(fn) { + var _this = this; + var server = new Server(this.host, this.port, this.options.server); + + if (this.options && this.options.mongos) { + var mongos = new Mongos([server], this.options.mongos); + this.db = new Db(this.name, mongos, this.options.db); + } else { + this.db = new Db(this.name, server, this.options.db); + } + + this.db.open(function(err) { + listen(_this); + + if (!mongos) { + server.s.server.on('error', function(error) { + if (/after \d+ attempts/.test(error.message)) { + _this.emit('error', new DisconnectedError(server.s.server.name)); + } + }); + } + + if (err) return fn(err); + + fn(); + }); + + return this; +}; + +/** + * Switches to a different database using the same connection pool. + * + * Returns a new connection object, with the new db. + * + * @param {String} name The database name + * @return {Connection} New Connection Object + * @api public + */ + +NativeConnection.prototype.useDb = function(name) { + // we have to manually copy all of the attributes... + var newConn = new this.constructor(); + newConn.name = name; + newConn.base = this.base; + newConn.collections = {}; + newConn.models = {}; + newConn.replica = this.replica; + newConn.hosts = this.hosts; + newConn.host = this.host; + newConn.port = this.port; + newConn.user = this.user; + newConn.pass = this.pass; + newConn.options = this.options; + newConn._readyState = this._readyState; + newConn._closeCalled = this._closeCalled; + newConn._hasOpened = this._hasOpened; + newConn._listening = false; + + // First, when we create another db object, we are not guaranteed to have a + // db object to work with. So, in the case where we have a db object and it + // is connected, we can just proceed with setting everything up. However, if + // we do not have a db or the state is not connected, then we need to wait on + // the 'open' event of the connection before doing the rest of the setup + // the 'connected' event is the first time we'll have access to the db object + + var _this = this; + + if (this.db && this._readyState === STATES.connected) { + wireup(); + } else { + this.once('connected', wireup); + } + + function wireup() { + newConn.db = _this.db.db(name); + newConn.onOpen(); + // setup the events appropriately + listen(newConn); + } + + newConn.name = name; + + // push onto the otherDbs stack, this is used when state changes + this.otherDbs.push(newConn); + newConn.otherDbs.push(this); + + return newConn; +}; + +/*! + * Register listeners for important events and bubble appropriately. + */ + +function listen(conn) { + if (conn.db._listening) { + return; + } + conn.db._listening = true; + + conn.db.on('close', function() { + if (conn._closeCalled) return; + + // the driver never emits an `open` event. auto_reconnect still + // emits a `close` event but since we never get another + // `open` we can't emit close + if (conn.db.serverConfig.autoReconnect) { + conn.readyState = STATES.disconnected; + conn.emit('close'); + return; + } + conn.onClose(); + }); + conn.db.on('error', function(err) { + conn.emit('error', err); + }); + conn.db.on('reconnect', function() { + conn.readyState = STATES.connected; + conn.emit('reconnected'); + }); + conn.db.on('timeout', function(err) { + var error = new Error(err && err.err || 'connection timeout'); + conn.emit('error', error); + }); + conn.db.on('open', function(err, db) { + if (STATES.disconnected === conn.readyState && db && db.databaseName) { + conn.readyState = STATES.connected; + conn.emit('reconnected'); + } + }); + conn.db.on('parseError', function(err) { + conn.emit('parseError', err); + }); +} + +/** + * Opens a connection to a MongoDB ReplicaSet. + * + * See description of [doOpen](#NativeConnection-doOpen) for server options. In this case `options.replset` is also passed to ReplSetServers. + * + * @param {Function} fn + * @api private + * @return {Connection} this + */ + +NativeConnection.prototype.doOpenSet = function(fn) { + var servers = [], + _this = this; + + this.hosts.forEach(function(server) { + var host = server.host || server.ipc; + var port = server.port || 27017; + servers.push(new Server(host, port, _this.options.server)); + }); + + var server = this.options.mongos + ? new Mongos(servers, this.options.mongos) + : new ReplSetServers(servers, this.options.replset || this.options.replSet); + this.db = new Db(this.name, server, this.options.db); + + this.db.on('fullsetup', function() { + _this.emit('fullsetup'); + }); + + this.db.on('all', function() { + _this.emit('all'); + }); + + this.db.open(function(err) { + if (err) return fn(err); + fn(); + listen(_this); + }); + + return this; +}; + +/** + * Closes the connection + * + * @param {Function} fn + * @return {Connection} this + * @api private + */ + +NativeConnection.prototype.doClose = function(fn) { + this.db.close(fn); + return this; +}; + +/** + * Prepares default connection options for the node-mongodb-native driver. + * + * _NOTE: `passed` options take precedence over connection string options._ + * + * @param {Object} passed options that were passed directly during connection + * @param {Object} [connStrOptions] options that were passed in the connection string + * @api private + */ + +NativeConnection.prototype.parseOptions = function(passed, connStrOpts) { + var o = passed || {}; + o.db || (o.db = {}); + o.auth || (o.auth = {}); + o.server || (o.server = {}); + o.replset || (o.replset = o.replSet) || (o.replset = {}); + o.server.socketOptions || (o.server.socketOptions = {}); + o.replset.socketOptions || (o.replset.socketOptions = {}); + o.mongos || (o.mongos = (connStrOpts && connStrOpts.mongos)); + (o.mongos === true) && (o.mongos = {}); + + var opts = connStrOpts || {}; + Object.keys(opts).forEach(function(name) { + switch (name) { + case 'ssl': + o.server.ssl = opts.ssl; + o.replset.ssl = opts.ssl; + o.mongos && (o.mongos.ssl = opts.ssl); + break; + case 'poolSize': + if (typeof o.server[name] === 'undefined') { + o.server[name] = o.replset[name] = opts[name]; + } + break; + case 'slaveOk': + if (typeof o.server.slave_ok === 'undefined') { + o.server.slave_ok = opts[name]; + } + break; + case 'autoReconnect': + if (typeof o.server.auto_reconnect === 'undefined') { + o.server.auto_reconnect = opts[name]; + } + break; + case 'socketTimeoutMS': + case 'connectTimeoutMS': + if (typeof o.server.socketOptions[name] === 'undefined') { + o.server.socketOptions[name] = o.replset.socketOptions[name] = opts[name]; + } + break; + case 'authdb': + if (typeof o.auth.authdb === 'undefined') { + o.auth.authdb = opts[name]; + } + break; + case 'authSource': + if (typeof o.auth.authSource === 'undefined') { + o.auth.authSource = opts[name]; + } + break; + case 'retries': + case 'reconnectWait': + case 'rs_name': + if (typeof o.replset[name] === 'undefined') { + o.replset[name] = opts[name]; + } + break; + case 'replicaSet': + if (typeof o.replset.rs_name === 'undefined') { + o.replset.rs_name = opts[name]; + } + break; + case 'readSecondary': + if (typeof o.replset.read_secondary === 'undefined') { + o.replset.read_secondary = opts[name]; + } + break; + case 'nativeParser': + if (typeof o.db.native_parser === 'undefined') { + o.db.native_parser = opts[name]; + } + break; + case 'w': + case 'safe': + case 'fsync': + case 'journal': + case 'wtimeoutMS': + if (typeof o.db[name] === 'undefined') { + o.db[name] = opts[name]; + } + break; + case 'readPreference': + if (typeof o.db.readPreference === 'undefined') { + o.db.readPreference = opts[name]; + } + break; + case 'readPreferenceTags': + if (typeof o.db.read_preference_tags === 'undefined') { + o.db.read_preference_tags = opts[name]; + } + break; + case 'sslValidate': + o.server.sslValidate = opts.sslValidate; + o.replset.sslValidate = opts.sslValidate; + o.mongos && (o.mongos.sslValidate = opts.sslValidate); + } + }); + + if (!('auto_reconnect' in o.server)) { + o.server.auto_reconnect = true; + } + + // mongoose creates its own ObjectIds + o.db.forceServerObjectId = false; + + // default safe using new nomenclature + if (!('journal' in o.db || 'j' in o.db || + 'fsync' in o.db || 'safe' in o.db || 'w' in o.db)) { + o.db.w = 1; + } + + if (o.promiseLibrary) { + o.db.promiseLibrary = o.promiseLibrary; + } + + validate(o); + return o; +}; + +/*! + * Validates the driver db options. + * + * @param {Object} o + */ + +function validate(o) { + if (o.db.w === -1 || o.db.w === 0) { + if (o.db.journal || o.db.fsync || o.db.safe) { + throw new Error( + 'Invalid writeConcern: ' + + 'w set to -1 or 0 cannot be combined with safe|fsync|journal'); + } + } +} + +/*! + * Module exports. + */ + +module.exports = NativeConnection; |