/* NameCallback.java -- callback for user names. Copyright (C) 2003, Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package javax.security.auth.callback; import java.io.Serializable; /** * Underlying security services instantiate and pass a NameCallback * to the handle() method of a {@link CallbackHandler} to retrieve * name information. * * @see CallbackHandler * @version $Revision: 1.1 $ */ public class NameCallback implements Callback, Serializable { // Constants and variables // ------------------------------------------------------------------------- /** * @serial * @since 1.4 */ private String prompt; /** * @serial * @since 1.4 */ private String defaultName; /** * @serial * @since 1.4 */ private String inputName; // Constructor(s) // ------------------------------------------------------------------------- /** * Construct a NameCallback with a prompt. * * @param prompt the prompt used to request the name. * @throws IllegalArgumentException if prompt is null * or if prompt has a length of 0. */ public NameCallback(String prompt) { super(); setPrompt(prompt); } /** * Construct a NameCallback with a prompt and default name. * * @param prompt the prompt used to request the information. * @param defaultName the name to be used as the default name displayed with * the prompt. * @throws IllegalArgumentException if prompt is null * or if prompt has a length of 0, if * defaultName is null, or if defaultName * has a length of 0. */ public NameCallback(String prompt, String defaultName) throws IllegalArgumentException { super(); setPrompt(prompt); setDefaultName(defaultName); } // Class methods // ------------------------------------------------------------------------- // Instance methods // ------------------------------------------------------------------------- /** * Get the prompt. * * @return the prompt. */ public String getPrompt() { return prompt; } /** * Get the default name. * * @return the default name, or null if this * NameCallback was not instantiated with a * defaultName. */ public String getDefaultName() { return defaultName; } /** * Set the retrieved name. * * @param name the retrieved name (which may be null). * @see #getName() */ public void setName(String name) { this.inputName = name; } /** * Get the retrieved name. * * @return the retrieved name (which may be null) * @see #setName(String) */ public String getName() { return inputName; } private void setPrompt(String prompt) throws IllegalArgumentException { if ((prompt == null) || (prompt.length() == 0)) { throw new IllegalArgumentException("invalid prompt"); } this.prompt = prompt; } private void setDefaultName(String defaultName) throws IllegalArgumentException { if ((defaultName == null) || (defaultName.length() == 0)) { throw new IllegalArgumentException("invalid default name"); } this.defaultName = defaultName; } }