/*
* CommandInfo.java
* Copyright (C) 2004 The Free Software Foundation
*
* This file is part of GNU Java Activation Framework (JAF), a library.
*
* GNU JAF 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 of the License, or
* (at your option) any later version.
*
* GNU JAF 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 javax.activation;
import java.io.Externalizable;
import java.io.InputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import at.dasz.KolabDroid.glue.Beans;
/**
* 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 String verb;
private 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;
}
}