/* Copyright (C) 2006 Christian Schneider
*
* This file is part of Nomad.
*
* Nomad 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.
*
* Nomad 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 Nomad; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.sf.nmedit.jtheme.component.misc;
import java.awt.Component;
import java.awt.Container;
import java.lang.reflect.Method;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import net.sf.nmedit.jtheme.component.JTComponent;
public class CallDescriptor
{
private String component;
private String method;
private JTComponent owner;
private transient JTComponent target;
private transient Method tmethod;
public CallDescriptor(JTComponent owner, String component, String method)
{
this.component = component;
this.method = method;
this.owner = owner;
}
private JTComponent getTarget()
{
if (target == null)
{
Container c = owner.getParent();
if (c != null)
{
for (int i=c.getComponentCount()-1;i>=0;i--)
{
Component t = c.getComponent(i);
if (t instanceof JTComponent && component.equals(t.getName()))
{
target = (JTComponent) t;
break;
}
}
}
}
return target;
}
private Method getMethod(JTComponent target)
{
if (tmethod == null)
{
try
{
tmethod = target.getClass().getDeclaredMethod(method, new Class[0]);
}
catch (Exception e)
{
Log l = LogFactory.getLog(getClass());
if (l.isDebugEnabled())
l.debug("Method not found: "+method, e);
}
}
return tmethod;
}
public void call()
{
JTComponent t = getTarget();
if (t == null) return;
Method m = getMethod(t);
if (m == null) return;
try
{
m.invoke(t, new Object[0]);
}
catch (Exception e)
{
Log l = LogFactory.getLog(getClass());
if (l.isDebugEnabled())
l.debug("call failed on method: "+method, e);
}
}
public String toString()
{
return getClass().getName()+"[component="+component+",method="+method+"]";
}
}