| /* RuntimeMXBeanImpl.java - Implementation of an runtime bean |
| Copyright (C) 2006 Free Software Foundation |
| |
| This file is part of GNU Classpath. |
| |
| 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. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.java.lang.management; |
| |
| import gnu.classpath.SystemProperties; |
| |
| import java.lang.management.RuntimeMXBean; |
| |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import javax.management.NotCompliantMBeanException; |
| |
| /** |
| * Provides access to information about the virtual machine. |
| * |
| * @author Andrew John Hughes (gnu_andrew@member.fsf.org) |
| * @since 1.5 |
| */ |
| public final class RuntimeMXBeanImpl |
| extends BeanImpl |
| implements RuntimeMXBean |
| { |
| |
| private static final String SUN_BOOT_CLASS_PATH = "sun.boot.class.path"; |
| private static final String JAVA_BOOT_CLASS_PATH = "java.boot.class.path"; |
| |
| private long startTime = -1; |
| |
| private String bootClassPath = null; |
| |
| private boolean bootClassPathSupported = true; |
| |
| /** |
| * Constructs a new <code>RuntimeMXBeanImpl</code>. |
| * |
| * @throws NotCompliantMBeanException if this class doesn't implement |
| * the interface or a method appears |
| * in the interface that doesn't comply |
| * with the naming conventions. |
| */ |
| public RuntimeMXBeanImpl() |
| throws NotCompliantMBeanException |
| { |
| super(RuntimeMXBean.class); |
| } |
| |
| public String getBootClassPath() |
| { |
| checkMonitorPermissions(); |
| if (isBootClassPathSupported()) |
| return bootClassPath; |
| else |
| throw |
| new UnsupportedOperationException("Retrieving the boot " + |
| "classpath is not supported."); |
| } |
| |
| public String getClassPath() |
| { |
| return System.getProperty("java.class.path"); |
| } |
| |
| public List getInputArguments() |
| { |
| checkMonitorPermissions(); |
| return Arrays.asList(VMRuntimeMXBeanImpl.getInputArguments()); |
| } |
| |
| public String getLibraryPath() |
| { |
| return System.getProperty("java.library.path"); |
| } |
| |
| public String getManagementSpecVersion() |
| { |
| return "1.0"; |
| } |
| |
| public String getName() |
| { |
| return VMRuntimeMXBeanImpl.getName(); |
| } |
| |
| public String getSpecName() |
| { |
| return System.getProperty("java.vm.specification.name"); |
| } |
| |
| public String getSpecVendor() |
| { |
| return System.getProperty("java.vm.specification.vendor"); |
| } |
| |
| public String getSpecVersion() |
| { |
| return System.getProperty("java.vm.specification.version"); |
| } |
| |
| public long getStartTime() |
| { |
| if (startTime == -1) |
| startTime = VMRuntimeMXBeanImpl.getStartTime(); |
| return startTime; |
| } |
| |
| public Map getSystemProperties() |
| { |
| Map map = new HashMap(); |
| Properties props = System.getProperties(); |
| Iterator entries = props.entrySet().iterator(); |
| while (entries.hasNext()) |
| { |
| Map.Entry next = (Map.Entry) entries.next(); |
| Object key = next.getKey(); |
| Object value = next.getValue(); |
| if (key instanceof String && |
| value instanceof String) |
| map.put(key, value); |
| } |
| return map; |
| } |
| |
| public long getUptime() |
| { |
| return new Date().getTime() - getStartTime(); |
| } |
| |
| public String getVmName() |
| { |
| return System.getProperty("java.vm.name"); |
| } |
| |
| public String getVmVendor() |
| { |
| return System.getProperty("java.vm.vendor"); |
| } |
| |
| public String getVmVersion() |
| { |
| return System.getProperty("java.vm.version"); |
| } |
| |
| public boolean isBootClassPathSupported() |
| { |
| if (bootClassPath == null) |
| { |
| bootClassPath = SystemProperties.getProperty(JAVA_BOOT_CLASS_PATH); |
| if (bootClassPath == null) |
| bootClassPath = SystemProperties.getProperty(SUN_BOOT_CLASS_PATH); |
| if (bootClassPath == null) |
| bootClassPathSupported = false; |
| } |
| return bootClassPathSupported; |
| } |
| |
| } |