/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.text.renderers;
import org.crsh.text.Color;
import org.crsh.text.Decoration;
import org.crsh.text.LineRenderer;
import org.crsh.text.Renderer;
import org.crsh.text.ui.LabelElement;
import org.crsh.text.ui.Overflow;
import org.crsh.text.ui.RowElement;
import org.crsh.text.ui.TableElement;
import org.crsh.util.Utils;
import javax.management.InstanceNotFoundException;
import javax.management.IntrospectionException;
import javax.management.JMException;
import javax.management.MBeanInfo;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import java.lang.management.ManagementFactory;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* @author Julien Viet
*/
public class ObjectNameRenderer extends Renderer<ObjectName> {
@Override
public Class<ObjectName> getType() {
return ObjectName.class;
}
@Override
public LineRenderer renderer(Iterator<ObjectName> stream) {
MBeanServer server = ManagementFactory.getPlatformMBeanServer();
List<ObjectName> names = Utils.list(stream);
Collections.sort(names);
//
TableElement table = new TableElement().overflow(Overflow.HIDDEN).rightCellPadding(1);
// Header
table.add(
new RowElement().
style(Decoration.bold.fg(Color.black).bg(Color.white)).
add("NAME", "CLASSNAME", "MXBEAN", "DESCRIPTION")
);
//
for (ObjectName name : names) {
String className;
String description;
String mxbean;
try {
MBeanInfo info = server.getMBeanInfo(name);
className = info.getClassName();
description = info.getDescription();
Object mxbeanValue = info.getDescriptor().getFieldValue("mxbean");
mxbean = mxbeanValue != null ? mxbeanValue.toString() : "false";
}
catch (JMException ignore) {
className = "";
description = "";
mxbean = "";
}
//
table.row("" + name, className, mxbean, description);
}
//
return table.renderer();
}
}