Set connection properties (#44)

* Add setConnectionProperties prototype

Author: Quentin Presley

lib/ibmdb.js

@@ -42,34 +42,41 @@ function IBMDB(name, settings) {
   debug('IBMDB constructor settings: %j', settings);
   SQLConnector.call(this, name, settings);
 
-  this.dbname = (settings.database || settings.db || 'testdb');
-  this.dsn = settings.dsn;
-  this.hostname = (settings.hostname || settings.host);
-  this.username = (settings.username || settings.user);
-  this.password = settings.password;
-  this.portnumber = settings.port;
-  this.protocol = (settings.protocol || 'TCPIP');
-
-  // Save off the connectionOptions passed in for connection pooling
-  this.connectionOptions = {};
-  this.connectionOptions.minPoolSize = parseInt(settings.minPoolSize, 10) || 0;
-  this.connectionOptions.maxPoolSize = parseInt(settings.maxPoolSize, 10) || 0;
-  this.connectionOptions.connectionTimeout =
-    parseInt(settings.connectionTimeout, 10) || 60;
-
   // Create the Connection Pool object.  It will be initialized once we
   // have the connection string prepped below.
+  this.setConnectionProperties(name, settings);
   this.client = new Driver.Pool(this.connectionOptions);
+  this.client.init(this.connectionOptions.minPoolSize, this.connStr);
+};
+
+util.inherits(IBMDB, SQLConnector);
+
+IBMDB.prototype.setConnectionProperties = function(name, settings) {
+  var self = this;
+  self.dbname = (settings.database || settings.db || 'testdb');
+  self.dsn = settings.dsn;
+  self.hostname = (settings.hostname || settings.host);
+  self.username = (settings.username || settings.user);
+  self.password = settings.password;
+  self.portnumber = settings.port;
+  self.protocol = (settings.protocol || 'TCPIP');
+
+  // Save off the connectionOptions passed in for connection pooling
+  self.connectionOptions = {};
+  self.connectionOptions.minPoolSize = parseInt(settings.minPoolSize, 10) || 0;
+  self.connectionOptions.maxPoolSize = parseInt(settings.maxPoolSize, 10) || 0;
+  self.connectionOptions.connectionTimeout =
+    parseInt(settings.connectionTimeout, 10) || 60;
 
   var dsn = settings.dsn;
   if (dsn) {
-    this.connStr = dsn;
+    self.connStr = dsn;
 
-    var DSNObject = parseDSN(dsn);
+    var DSNObject = self.parseDSN(dsn);
     if (!('CurrentSchema' in DSNObject)) {
-      this.connStr += ';CurrentSchema=' + DSNObject.UID;
+      self.connStr += ';CurrentSchema=' + DSNObject.UID;
     }
-    this.schema = DSNObject.CurrentSchema || DSNObject.UID;
+    self.schema = DSNObject.CurrentSchema || DSNObject.UID;
   } else {
     var connStrGenerate =
       'DRIVER={' + name + '}' +
@@ -79,22 +86,19 @@ function IBMDB(name, settings) {
       ';PWD=' + this.password +
       ';PORT=' + this.portnumber +
       ';PROTOCOL=' + this.protocol;
-    this.connStr = connStrGenerate;
+    self.connStr = connStrGenerate;
 
-    this.schema = this.username;
+    self.schema = this.username;
     if (settings.schema) {
-      this.schema = settings.schema.toUpperCase();
+      self.schema = settings.schema.toUpperCase();
     }
 
-    this.connStr += ';CurrentSchema=' + this.schema;
+    self.connStr += ';CurrentSchema=' + self.schema;
   }
-
-  this.client.init(this.connectionOptions.minPoolSize, this.connStr);
 };
 
-util.inherits(IBMDB, SQLConnector);
 
-function parseDSN(dsn) {
+IBMDB.prototype.parseDSN = function(dsn) {
   // Split dsn into an array of optionStr
   var dsnOption = dsn.split(';');
   // Handle dsn string ended with ';'
@@ -110,7 +114,7 @@ function parseDSN(dsn) {
   });
 
   return result;
-}
+};
 
 IBMDB.prototype.tableEscaped = function(model) {
   var escapedName = this.escapeName(this.table(model));