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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
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--- /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;