Login (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.messaging.netty.Login

```
public class Login
extends Object
```

Field Summary

Fields
Modifier and Type Field Description

CallbackHandler callbackHandler

Constructor Summary

Constructors
Constructor Description

Login(String loginContextName, CallbackHandler callbackHandler, String jaasConfFile)
Login constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getLoginContextName()`
`Subject`	`getSubject()`
`void`	`shutdown()`
`void`	`startThreadIfNeeded()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - callbackHandler
```
public CallbackHandler callbackHandler
```
- Constructor Detail
  - Login
```
public Login(String loginContextName,
             CallbackHandler callbackHandler,
             String jaasConfFile)
      throws LoginException
```
    Login constructor. The constructor starts the thread used to periodically re-login to the Kerberos Ticket Granting Server.
    
    Parameters:
    
    loginContextName - name of section in JAAS file that will be used to login. Passed as first param to javax.security.auth.login.LoginContext().
    
    callbackHandler - Passed as second param to javax.security.auth.login.LoginContext().
    
    Throws:
    
    LoginException - Thrown if authentication fails.
- Method Detail
  - startThreadIfNeeded
```
public void startThreadIfNeeded()
```
  - shutdown
```
public void shutdown()
```
  - getSubject
```
public Subject getSubject()
```
  - getLoginContextName
```
public String getLoginContextName()
```