| /* CommandInfo.java -- Description of the result of a command request. |
| Copyright (C) 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 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.activation; |
| |
| import java.beans.Beans; |
| import java.io.Externalizable; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| |
| /** |
| * Description of the result of a command request. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| * @version 1.1 |
| */ |
| public class CommandInfo |
| { |
| |
| private final String verb; |
| private final String className; |
| |
| /** |
| * Constructor. |
| * @param verb the command verb |
| * @param className the command class name |
| */ |
| public CommandInfo(String verb, String className) |
| { |
| this.verb = verb; |
| this.className = className; |
| } |
| |
| /** |
| * Returns the command verb. |
| */ |
| public String getCommandName() |
| { |
| return verb; |
| } |
| |
| /** |
| * Returns the command class name. |
| */ |
| public String getCommandClass() |
| { |
| return className; |
| } |
| |
| /** |
| * Returns the instantiated bean. |
| * If the bean implements <code>CommandObject</code>, its |
| * <code>setCommandContext</code> method will be called. |
| * @param dh the data handler describing the command data |
| * @param loader the class loader used to instantiate the bean |
| */ |
| public Object getCommandObject(DataHandler dh, ClassLoader loader) |
| throws IOException, ClassNotFoundException |
| { |
| Object object = Beans.instantiate(loader, className); |
| if (object != null) |
| { |
| if (object instanceof CommandObject) |
| { |
| CommandObject command = (CommandObject)object; |
| command.setCommandContext(verb, dh); |
| } |
| else if (dh != null && (object instanceof Externalizable)) |
| { |
| InputStream in = dh.getInputStream(); |
| if (in != null) |
| { |
| Externalizable externalizable = (Externalizable)object; |
| externalizable.readExternal(new ObjectInputStream(in)); |
| } |
| } |
| } |
| return object; |
| } |
| |
| } |
| |