org.apache.taverna.security.credentialmanager

Interface ServiceUsernameAndPasswordProvider

public interface ServiceUsernameAndPasswordProvider

Defines an interface for providing a username and password for a service to be invoked as part of a workflow run.

Used by Credential Manager when looking up the username and password for the service in its Keystore - if it cannot find anything it will loop through all providers until one can provide them. If none can, the service invocation will (most probably) fail.

A typical implementation of this class would pop up a dialog and ask the user for the password. Such providers should check GraphicsEnvironment#isHeadless() before returning to avoid attempts to pop up dialogues on server/headless installations.

Author:

Alex Nenadic, Stian Soiland-Reyes

See Also:

CredentialManager

Method Summary

Modifier and Type	Method and Description
UsernamePassword	getServiceUsernameAndPassword(URI serviceURI, String requestMessage) Get the username and password pair for the given service URI.
void	setServiceUsernameAndPassword(URI serviceURI, UsernamePassword usernamePassword) Set the username and password pair for the given service URI.

Method Detail

getServiceUsernameAndPassword

UsernamePassword getServiceUsernameAndPassword(URI serviceURI,
                                               String requestMessage)

Get the username and password pair for the given service URI.

Parameters:

serviceURI - The service we are looking username and password for

requestMessage - The message to be presented to the user when asking for the username and password, normally useful for UI providers that pop up dialogs, can be ignored otherwise

Returns:

the username and password pair for the given service URI, or null if the provider does not know for this URI.

setServiceUsernameAndPassword

void setServiceUsernameAndPassword(URI serviceURI,
                                   UsernamePassword usernamePassword)

Set the username and password pair for the given service URI.