支持PasswordCallback

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@85 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/DruidDataAbstractSource.java

@@ -320,6 +320,11 @@ public abstract class DruidDataAbstractSource implements DataSource, DataSourceP
     public void setPasswordCallback(PasswordCallback passwordCallback) {
         this.passwordCallback = passwordCallback;
     }
+    
+    public void setPasswordCallback(String passwordCallbackClassName) throws Exception {
+        Class<?> clazz = Thread.currentThread().getContextClassLoader().loadClass(passwordCallbackClassName);
+        this.passwordCallback = (PasswordCallback) clazz.newInstance();
+    }
 
     public NameCallback getUserCallback() {
         return userCallback;