mirror of git://gcc.gnu.org/git/gcc.git
117 lines
3.6 KiB
Java
117 lines
3.6 KiB
Java
/* CommandInfo.java -- Description of the result of a command request.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.activation;
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import java.beans.Beans;
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import java.io.Externalizable;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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/**
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* Description of the result of a command request.
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*
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* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
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* @version 1.1
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*/
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public class CommandInfo
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{
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private final String verb;
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private final String className;
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/**
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* Constructor.
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* @param verb the command verb
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* @param className the command class name
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*/
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public CommandInfo(String verb, String className)
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{
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this.verb = verb;
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this.className = className;
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}
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/**
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* Returns the command verb.
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*/
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public String getCommandName()
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{
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return verb;
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}
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/**
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* Returns the command class name.
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*/
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public String getCommandClass()
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{
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return className;
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}
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/**
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* Returns the instantiated bean.
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* If the bean implements <code>CommandObject</code>, its
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* <code>setCommandContext</code> method will be called.
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* @param dh the data handler describing the command data
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* @param loader the class loader used to instantiate the bean
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*/
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public Object getCommandObject(DataHandler dh, ClassLoader loader)
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throws IOException, ClassNotFoundException
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{
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Object object = Beans.instantiate(loader, className);
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if (object != null)
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{
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if (object instanceof CommandObject)
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{
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CommandObject command = (CommandObject)object;
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command.setCommandContext(verb, dh);
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}
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else if (dh != null && (object instanceof Externalizable))
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{
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InputStream in = dh.getInputStream();
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if (in != null)
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{
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Externalizable externalizable = (Externalizable)object;
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externalizable.readExternal(new ObjectInputStream(in));
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}
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}
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}
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return object;
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}
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}
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