BasicAuthenticator (Java SE 12 & JDK 12 )

java.lang.Object
- com.sun.net.httpserver.Authenticator
- - com.sun.net.httpserver.BasicAuthenticator

```
public abstract class BasicAuthenticator
extends Authenticator
```
BasicAuthenticator provides an implementation of HTTP Basic authentication. It is an abstract class and must be extended to provide an implementation of checkCredentials(String,String) which is called to verify each incoming request.

Nested Class Summary
- Nested classes/interfaces declared in class com.sun.net.httpserver.Authenticator
  Authenticator.Failure, Authenticator.Result, Authenticator.Retry, Authenticator.Success

Field Summary

Fields
Modifier and Type Field Description

protected String realm

Constructor Summary

Constructors
Constructor Description

BasicAuthenticator(String realm)
Creates a BasicAuthenticator for the given HTTP realm

Method Summary

Modifier and Type	Method	Description
`abstract boolean`	`checkCredentials(String username, String password)`	called for each incoming request to verify the given name and password in the context of this Authenticator's realm.
`String`	`getRealm()`	returns the realm this BasicAuthenticator was created with

Methods declared in class com.sun.net.httpserver.Authenticator
authenticate

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

- Field Detail
  - realm
```
protected String realm
```
- Constructor Detail
  - BasicAuthenticator
```
public BasicAuthenticator(String realm)
```
    Creates a BasicAuthenticator for the given HTTP realm
    
    Parameters:
    
    realm - The HTTP Basic authentication realm
    
    Throws:
    
    NullPointerException - if the realm is an empty string
- Method Detail
  - getRealm
```
public String getRealm()
```
    returns the realm this BasicAuthenticator was created with
    
    Returns:
    
    the authenticator's realm string.
  - checkCredentials
```
public abstract boolean checkCredentials(String username,
                                         String password)
```
    called for each incoming request to verify the given name and password in the context of this Authenticator's realm. Any caching of credentials must be done by the implementation of this method
    
    Parameters:
    
    username - the username from the request
    
    password - the password from the request
    
    Returns:
    
    true if the credentials are valid, false otherwise.