| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.taverna.security.credentialmanager; |
| |
| import java.net.URI; |
| |
| /** |
| * Defines an interface for providing a username and password for a service to |
| * be invoked as part of a workflow run. |
| * <p> |
| * 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. |
| * <p> |
| * A typical implementation of this class would pop up a dialog and ask the user |
| * for the password. Such providers should check |
| * {@link GraphicsEnvironment#isHeadless()} before returning to avoid attempts |
| * to pop up dialogues on server/headless installations. |
| * |
| * @see CredentialManager |
| * @author Alex Nenadic |
| * @author Stian Soiland-Reyes |
| */ |
| public interface ServiceUsernameAndPasswordProvider { |
| /** |
| * Get the username and password pair for the given service URI. |
| * |
| * @param serviceURI |
| * The service we are looking username and password for |
| * @param 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 |
| * @return the username and password pair for the given service URI, or |
| * <tt>null</tt> if the provider does not know for this URI. |
| */ |
| UsernamePassword getServiceUsernameAndPassword(URI serviceURI, |
| String requestMessage); |
| |
| /** |
| * Set the username and password pair for the given service URI. |
| */ |
| void setServiceUsernameAndPassword(URI serviceURI, |
| UsernamePassword usernamePassword); |
| } |