| /* Provider.java -- Security provider information |
| Copyright (C) 1998, 1999, 2000 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. |
| |
| As a special exception, if you link this library with other files to |
| produce an executable, this library does not by itself cause the |
| resulting executable to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why the |
| executable file might be covered by the GNU General Public License. */ |
| |
| |
| package java.security; |
| |
| import java.io.Serializable; |
| import java.util.Properties; |
| |
| /** |
| * This class represents a Java security architecture service provider. |
| * The services provided by a such a provider can range from security |
| * algorithms to key generation. |
| * <p> |
| * Providers are installed by name and verion number. There is one |
| * standard provider supplied with the class library. This is the |
| * "GNU" provider, which can also be accessed by the alias "SUN" for |
| * compatibility with the JDK. |
| * |
| * @version 0.0 |
| * |
| * @author Aaron M. Renn (arenn@urbanophile.com) |
| */ |
| public abstract class Provider extends Properties implements Serializable |
| { |
| |
| /*************************************************************************/ |
| |
| /* |
| * Instance Variables |
| */ |
| |
| /** |
| * This is a textual description of the provider |
| */ |
| private String info; |
| |
| /** |
| * This is the name of the provider |
| */ |
| private String name; |
| |
| /** |
| * This is the version number of the provider |
| */ |
| private double version; |
| |
| private static final long serialVersionUID = -4298000515446427739L; |
| |
| /*************************************************************************/ |
| |
| /* |
| * Constructors |
| */ |
| |
| /** |
| * This method initializes a new instance of <code>Provider</code> to have |
| * the specified name, version, and description information. |
| * |
| * @param name The name to assign to this <code>Provider</code>. |
| * @param version The version number for this <code>Provider</code>. |
| * @param info A textual description of this provider. |
| */ |
| protected |
| Provider(String name, double version, String info) |
| { |
| this.name = name; |
| this.version = version; |
| this.info = info; |
| } |
| |
| /*************************************************************************/ |
| |
| /* |
| * Instance Methods |
| */ |
| |
| /** |
| * This method returns the name assigned to this <code>Provider</code>. |
| * |
| * @return The <code>Provider</code>'s name. |
| */ |
| public String |
| getName() |
| { |
| return(name); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method retunrs the version number of this <code>Provider</code>. |
| * |
| * @return The <code>Provider</code>'s version number. |
| */ |
| public double |
| getVersion() |
| { |
| return(version); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method returns a textual description of the <code>Provider</code>. |
| * |
| * @return A description of the <code>Provider</code>. |
| */ |
| public String |
| getInfo() |
| { |
| return(info); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method sets the specified key to have the specified value. |
| * |
| * @param key The property key |
| * @param value The property value |
| * |
| * @return The previous value for this key, or <code>null</code> if no previous value. |
| */ |
| public Object |
| put(Object key, Object value) |
| { |
| return(super.put(key, value)); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method removes the specified key entry (and its associated value) |
| * from the property mapping list. |
| * |
| * @param key The key to remove |
| * |
| * @return The previous value for this key, or <code>null</code> if no previous value. |
| */ |
| public Object |
| remove(Object key) |
| { |
| return(super.remove(key)); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method clears the entire property list such that it no longer |
| * contains the properties used to look up the services provided by |
| * the <code>Provider</code>. |
| */ |
| public void |
| clear() |
| { |
| super.clear(); |
| } |
| |
| /*************************************************************************/ |
| |
| /** |
| * This method returns a <code>String</code> representation of this |
| * object. This will include the <code>Provider</code> name and |
| * version number. |
| * |
| * @return A <code>String</code> representation of this object. |
| */ |
| public String |
| toString() |
| { |
| return(getClass().getName() + ": name=" + getName() + " version=" + version); |
| } |
| |
| } // class Provider |
| |