| /* TestClassLoading.java -- Tests the class loading bean. |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath examples. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. */ |
| |
| package gnu.classpath.examples.management; |
| |
| import java.lang.management.ClassLoadingMXBean; |
| import java.lang.management.ManagementFactory; |
| |
| import static java.lang.management.ManagementFactory.CLASS_LOADING_MXBEAN_NAME; |
| |
| import javax.management.Attribute; |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| |
| public class TestClassLoading |
| { |
| public static void main(String[] args) |
| throws Exception |
| { |
| System.out.println("Testing locally..."); |
| ClassLoadingMXBean bean = ManagementFactory.getClassLoadingMXBean(); |
| System.out.println("Bean: " + bean); |
| System.out.println("Loaded classes: " + bean.getLoadedClassCount()); |
| System.out.println("Unloaded classes: " + bean.getUnloadedClassCount()); |
| System.out.println("Total loaded classes: " + bean.getTotalLoadedClassCount()); |
| boolean verbosity = bean.isVerbose(); |
| System.out.println("Verbose class output: " + (verbosity ? "yes" : "no")); |
| System.out.println("Changing verbose setting..."); |
| bean.setVerbose(!verbosity); |
| System.out.println("Verbose class output: " + (bean.isVerbose() ? "yes" : "no")); |
| System.out.println("Testing via the server..."); |
| MBeanServer server = ManagementFactory.getPlatformMBeanServer(); |
| ObjectName classBean = new ObjectName(CLASS_LOADING_MXBEAN_NAME); |
| System.out.println("Bean: " + classBean); |
| System.out.println("Loaded classes: " + server.getAttribute(classBean, "LoadedClassCount")); |
| System.out.println("Unloaded classes: " + server.getAttribute(classBean, |
| "UnloadedClassCount")); |
| System.out.println("Total loaded classes: " + server.getAttribute(classBean, |
| "TotalLoadedClassCount")); |
| verbosity = (Boolean) server.getAttribute(classBean, "Verbose"); |
| System.out.println("Verbose class output: " + (verbosity ? "yes" : "no")); |
| System.out.println("Changing verbose setting..."); |
| server.setAttribute(classBean, new Attribute("Verbose", !verbosity)); |
| System.out.println("Verbose class output: " + ((Boolean) |
| server.getAttribute(classBean, "Verbose") ? |
| "yes" : "no")); |
| System.out.println("Testing via the proxy..."); |
| bean = ManagementFactory.newPlatformMXBeanProxy(server, CLASS_LOADING_MXBEAN_NAME, |
| ClassLoadingMXBean.class); |
| System.out.println("Bean: " + bean); |
| System.out.println("Loaded classes: " + bean.getLoadedClassCount()); |
| System.out.println("Unloaded classes: " + bean.getUnloadedClassCount()); |
| System.out.println("Total loaded classes: " + bean.getTotalLoadedClassCount()); |
| verbosity = bean.isVerbose(); |
| System.out.println("Verbose class output: " + (verbosity ? "yes" : "no")); |
| System.out.println("Changing verbose setting..."); |
| bean.setVerbose(!verbosity); |
| System.out.println("Verbose class output: " + (bean.isVerbose() ? "yes" : "no")); |
| } |
| } |