Package com.mongodb

Class KerberosSubjectProvider

java.lang.Object

com.mongodb.KerberosSubjectProvider

All Implemented Interfaces:

SubjectProvider

@ThreadSafe
public class KerberosSubjectProvider
extends Object
implements SubjectProvider

An implementation of SubjectProvider suitable for use as the value of the MongoCredential.JAVA_SUBJECT_PROVIDER_KEY mechanism property for Kerberos credentials, created via MongoCredential.createGSSAPICredential(String).

An instance of this class will cache a Kerberos Subject until its TGT is close to expiration, at which point it will replace the Subject with a new one.

Subject instances are created by first constructing a LoginContext with the specified name, then calling its LoginContext.login() method, and finally acquiring the Subject via a call to LoginContext.getSubject().

Since:

4.2

See Also:

LoginContext, Subject, KerberosTicket

Constructor Summary

Constructors

Constructor	Description
KerberosSubjectProvider()	Construct an instance with the default login context name "com.sun.security.jgss.krb5.initiate".
KerberosSubjectProvider(String loginContextName)	Construct an instance with the specified login context name

Method Summary

Modifier and Type	Method	Description
Subject	getSubject()	Gets a Subject instance associated with a LoginContext after its been logged in.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KerberosSubjectProvider

public KerberosSubjectProvider()

Construct an instance with the default login context name "com.sun.security.jgss.krb5.initiate".

KerberosSubjectProvider

public KerberosSubjectProvider(@NonNull
                               String loginContextName)

Construct an instance with the specified login context name

Parameters:

loginContextName - the login context name

Method Detail

getSubject

@NonNull
public Subject getSubject()
                   throws LoginException

Gets a Subject instance associated with a LoginContext after its been logged in.

Specified by:

getSubject in interface SubjectProvider

Returns:

the non-null Subject instance

Throws:

LoginException - any exception resulting from a call to LoginContext.login()