swingviewer.java

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/*
*  Copyright (c) 2001 Sun Microsystems, Inc.  All rights
*  reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*  notice, this list of conditions and the following disclaimer.
*
*  2. Redistributions in binary form must reproduce the above copyright
*  notice, this list of conditions and the following disclaimer in
*  the documentation and/or other materials provided with the
*  distribution.
*
*  3. The end-user documentation included with the redistribution,
*  if any, must include the following acknowledgment:
*  "This product includes software developed by the
*  Sun Microsystems, Inc. for Project JXTA."
*  Alternately, this acknowledgment may appear in the software itself,
*  if and wherever such third-party acknowledgments normally appear.
*
*  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA"
*  must not be used to endorse or promote products derived from this
*  software without prior written permission. For written
*  permission, please contact Project JXTA at http://www.jxta.org.
*
*  5. Products derived from this software may not be called "JXTA",
*  nor may "JXTA" appear in their name, without prior written
*  permission of Sun.
*
*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
*  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
*  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
*  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
*  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*  SUCH DAMAGE.
*  ====================================================================
*
*  This software consists of voluntary contributions made by many
*  individuals on behalf of Project JXTA.  For more
*  information on Project JXTA, please see
*  <http://www.jxta.org/>.
*
*  This license is based on the BSD license adopted by the Apache Foundation.
*
*  $Id: SwingViewer.java,v 1.1 2006/07/17 19:21:58 nano Exp $
*/

package net.jxta.myjxta.ui;

import net.jxta.myjxta.MyJXTA;
import net.jxta.myjxta.View;
import net.jxta.myjxta.Viewer;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import java.awt.EventQueue;

/**
 *
 * @version $Id: SwingViewer.java,v 1.1 2006/07/17 19:21:58 nano Exp $
 */
public class SwingViewer
implements Viewer {
    
    private View view = null;
    public static final String viewClassConstant="swingViewClass"; 
    private Class customSwingViewClass;
    
    public SwingViewer() {
	String customSwingViewClassString = System.getProperty(viewClassConstant);
	if (customSwingViewClassString==null){
	    customSwingViewClass=MyJXTAView.class;
	} else {
	    try {
		customSwingViewClass=Class.forName(customSwingViewClassString);
	    } catch (ClassNotFoundException e) {
		e.printStackTrace();
		customSwingViewClass=MyJXTAView.class;
	    }
	}
    }
    
    public View getView(final MyJXTA myjxta) {
        try {
            EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    Class cls = customSwingViewClass;
                    Class partypes[] = new Class[1];
                    partypes[0] = MyJXTA.class;
                    try {
                	Constructor ct = cls.getConstructor(partypes);
			view = (View) ct.newInstance(new Object[]{myjxta});
		    } catch (Exception e) {
			e.printStackTrace();
		    }
                }
            });
        } catch (InterruptedException ie) {
            ie.printStackTrace();
        } catch (InvocationTargetException ite) {
            ite.printStackTrace();
        }
        return view;
    }
}