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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java')
-rw-r--r-- | libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java new file mode 100644 index 000000000..8db943bb6 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/RuntimeMXBeanImpl.java @@ -0,0 +1,197 @@ +/* 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; + } + +} |