com.datastax.oss.driver.api.core.auth

Class ProgrammaticPlainTextAuthProvider

java.lang.Object

com.datastax.oss.driver.api.core.auth.PlainTextAuthProviderBase

com.datastax.oss.driver.api.core.auth.ProgrammaticPlainTextAuthProvider

All Implemented Interfaces:

AuthProvider, AutoCloseable

@ThreadSafe
public class ProgrammaticPlainTextAuthProvider
extends PlainTextAuthProviderBase

A simple plaintext AuthProvider that receives the credentials programmatically instead of pulling them from the configuration.

To use this class, create an instance with the appropriate credentials to use and pass it to your session builder:

 AuthProvider authProvider = new ProgrammaticPlainTextAuthProvider("...", "...");
 CqlSession session =
     CqlSession.builder()
         .addContactEndPoints(...)
         .withAuthProvider(authProvider)
         .build();
 

It also offers the possibility of changing the credentials at runtime. The new credentials will be used for all connections initiated after the change.

Implementation Note: this implementation is not particularly suited for highly-sensitive applications: it stores the credentials to use as private fields, and even if the fields are char arrays rather than strings to make it difficult to dump their contents, they are never cleared until the provider itself is garbage-collected, which typically only happens when the session is closed.

See Also:

SessionBuilder.withAuthProvider(AuthProvider), SessionBuilder.withAuthCredentials(String, String), SessionBuilder.withAuthCredentials(String, String, String)

Nested Class Summary

Nested classes/interfaces inherited from class com.datastax.oss.driver.api.core.auth.PlainTextAuthProviderBase

PlainTextAuthProviderBase.Credentials, PlainTextAuthProviderBase.PlainTextAuthenticator

Constructor Summary

Constructors

Constructor and Description
ProgrammaticPlainTextAuthProvider(String username, String password) Builds an instance for simple username/password authentication.
ProgrammaticPlainTextAuthProvider(String username, String password, String authorizationId) Builds an instance for username/password authentication, and proxy authentication with the given authorizationId.

Method Summary

Modifier and Type	Method and Description
protected PlainTextAuthProviderBase.Credentials	getCredentials(EndPoint endPoint, String serverAuthenticator) Retrieves the credentials from the underlying source.
void	setAuthorizationId(String authorizationId) Changes the authorization id.
void	setPassword(String password) Changes the password.
void	setUsername(String username) Changes the username.

Methods inherited from class com.datastax.oss.driver.api.core.auth.PlainTextAuthProviderBase

close, newAuthenticator, onMissingChallenge

Methods inherited from class java.lang.Object

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

Constructor Detail

ProgrammaticPlainTextAuthProvider

public ProgrammaticPlainTextAuthProvider(@NonNull
                                         String username,
                                         @NonNull
                                         String password)

Builds an instance for simple username/password authentication.

ProgrammaticPlainTextAuthProvider

public ProgrammaticPlainTextAuthProvider(@NonNull
                                         String username,
                                         @NonNull
                                         String password,
                                         @NonNull
                                         String authorizationId)

Builds an instance for username/password authentication, and proxy authentication with the given authorizationId.

This feature is only available with Datastax Enterprise. If the target server is Apache Cassandra, use ProgrammaticPlainTextAuthProvider(String, String) instead, or set the authorizationId to an empty string.

Method Detail

setUsername

public void setUsername(@NonNull
                        String username)

Changes the username.

The new credentials will be used for all connections initiated after this method was called.

Parameters:

username - the new name.

setPassword

public void setPassword(@NonNull
                        String password)

Changes the password.

The new credentials will be used for all connections initiated after this method was called.

Parameters:

password - the new password.

setAuthorizationId

public void setAuthorizationId(@NonNull
                               String authorizationId)

Changes the authorization id.

The new credentials will be used for all connections initiated after this method was called.

This feature is only available with Datastax Enterprise. If the target server is Apache Cassandra, this method should not be used.

Parameters:

authorizationId - the new authorization id.

getCredentials

@NonNull
protected PlainTextAuthProviderBase.Credentials getCredentials(@NonNull
                                                                        EndPoint endPoint,
                                                                        @NonNull
                                                                        String serverAuthenticator)

Retrieves the credentials from the underlying source.

This is invoked every time the driver opens a new connection.

This implementation disregards the endpoint being connected to as well as the authenticator class sent by the server, and always returns the same credentials.

Specified by:

getCredentials in class PlainTextAuthProviderBase

Parameters:

endPoint - The endpoint being contacted.

serverAuthenticator - The authenticator class sent by the endpoint.