diff options
Diffstat (limited to 'libjava/classpath/gnu/java/lang/management')
11 files changed, 2041 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/lang/management/BeanImpl.java b/libjava/classpath/gnu/java/lang/management/BeanImpl.java new file mode 100644 index 000000000..a7c2357b6 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/BeanImpl.java @@ -0,0 +1,447 @@ +/* BeanImpl.java - A common superclass for bean implementations. + 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.javax.management.Translator; + +import java.lang.management.ManagementPermission; + +import java.lang.reflect.Array; +import java.lang.reflect.Method; +import java.lang.reflect.InvocationTargetException; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; + +import javax.management.AttributeNotFoundException; +import javax.management.MBeanAttributeInfo; +import javax.management.MBeanConstructorInfo; +import javax.management.MBeanException; +import javax.management.MBeanInfo; +import javax.management.MBeanOperationInfo; +import javax.management.MBeanParameterInfo; +import javax.management.NotCompliantMBeanException; +import javax.management.ReflectionException; +import javax.management.StandardMBean; + +import javax.management.openmbean.ArrayType; +import javax.management.openmbean.CompositeDataSupport; +import javax.management.openmbean.CompositeType; +import javax.management.openmbean.OpenDataException; +import javax.management.openmbean.OpenMBeanAttributeInfo; +import javax.management.openmbean.OpenMBeanAttributeInfoSupport; +import javax.management.openmbean.OpenMBeanConstructorInfo; +import javax.management.openmbean.OpenMBeanConstructorInfoSupport; +import javax.management.openmbean.OpenMBeanInfo; +import javax.management.openmbean.OpenMBeanInfoSupport; +import javax.management.openmbean.OpenMBeanOperationInfo; +import javax.management.openmbean.OpenMBeanOperationInfoSupport; +import javax.management.openmbean.OpenMBeanParameterInfo; +import javax.management.openmbean.OpenMBeanParameterInfoSupport; +import javax.management.openmbean.OpenType; +import javax.management.openmbean.TabularData; +import javax.management.openmbean.TabularDataSupport; +import javax.management.openmbean.TabularType; + +/** + * A common superclass for bean implementations. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public class BeanImpl + extends StandardMBean +{ + + /** + * Cached open bean information. + */ + private OpenMBeanInfo openInfo; + + /** + * Constructs a new <code>BeanImpl</code>. + * + * @param iface the bean interface being implemented. + * @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. + */ + protected BeanImpl(Class iface) + throws NotCompliantMBeanException + { + super(iface); + } + + protected void cacheMBeanInfo(MBeanInfo info) + { + if (info == null) + return; + try + { + MBeanAttributeInfo[] oldA = info.getAttributes(); + OpenMBeanAttributeInfo[] attribs = + new OpenMBeanAttributeInfoSupport[oldA.length]; + for (int a = 0; a < oldA.length; ++a) + { + OpenMBeanParameterInfo param = Translator.translate(oldA[a].getType()); + if (param.getMinValue() == null) + { + Object[] lv; + if (param.getLegalValues() == null) + lv = null; + else + lv = param.getLegalValues().toArray(); + attribs[a] = new OpenMBeanAttributeInfoSupport(oldA[a].getName(), + oldA[a].getDescription(), + ((OpenType<Object>) + param.getOpenType()), + oldA[a].isReadable(), + oldA[a].isWritable(), + oldA[a].isIs(), + param.getDefaultValue(), + lv); + } + else + attribs[a] = new OpenMBeanAttributeInfoSupport(oldA[a].getName(), + oldA[a].getDescription(), + ((OpenType<Object>) + param.getOpenType()), + oldA[a].isReadable(), + oldA[a].isWritable(), + oldA[a].isIs(), + param.getDefaultValue(), + ((Comparable<Object>) + param.getMinValue()), + ((Comparable<Object>) + param.getMaxValue())); + } + MBeanConstructorInfo[] oldC = info.getConstructors(); + OpenMBeanConstructorInfo[] cons = new OpenMBeanConstructorInfoSupport[oldC.length]; + for (int a = 0; a < oldC.length; ++a) + cons[a] = + new OpenMBeanConstructorInfoSupport(oldC[a].getName(), + oldC[a].getDescription(), + translateSignature(oldC[a].getSignature())); + MBeanOperationInfo[] oldO = info.getOperations(); + OpenMBeanOperationInfo[] ops = new OpenMBeanOperationInfoSupport[oldO.length]; + for (int a = 0; a < oldO.length; ++a) + ops[a] = + new OpenMBeanOperationInfoSupport(oldO[a].getName(), + oldO[a].getDescription(), + translateSignature(oldO[a].getSignature()), + Translator.translate(oldO[a].getReturnType()).getOpenType(), + oldO[a].getImpact()); + openInfo = new OpenMBeanInfoSupport(info.getClassName(), info.getDescription(), + attribs, cons, ops, info.getNotifications()); + } + catch (OpenDataException e) + { + throw (InternalError) (new InternalError("A problem occurred creating the open type " + + "descriptors.").initCause(e)); + } + } + + protected void checkMonitorPermissions() + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkPermission(new ManagementPermission("monitor")); + } + + protected void checkControlPermissions() + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkPermission(new ManagementPermission("control")); + } + + public Object getAttribute(String attribute) + throws AttributeNotFoundException, MBeanException, + ReflectionException + { + Object value = super.getAttribute(attribute); + if (value instanceof Enum) + return ((Enum) value).name(); + Class vClass = value.getClass(); + if (vClass.isArray()) + vClass = vClass.getComponentType(); + String cName = vClass.getName(); + String[] allowedTypes = OpenType.ALLOWED_CLASSNAMES; + for (int a = 0; a < allowedTypes.length; ++a) + if (cName.equals(allowedTypes[a])) + return value; + OpenMBeanInfo info = (OpenMBeanInfo) getMBeanInfo(); + MBeanAttributeInfo[] attribs = + (MBeanAttributeInfo[]) info.getAttributes(); + OpenType type = null; + for (int a = 0; a < attribs.length; ++a) + if (attribs[a].getName().equals(attribute)) + type = ((OpenMBeanAttributeInfo) attribs[a]).getOpenType(); + if (value instanceof List) + { + try + { + Class e = + Class.forName(((ArrayType) type).getElementOpenType().getClassName()); + List l = (List) value; + Object[] array = (Object[]) Array.newInstance(e, l.size()); + return l.toArray(array); + } + catch (ClassNotFoundException e) + { + throw (InternalError) (new InternalError("The class of the list " + + "element type could not " + + "be created").initCause(e)); + } + } + if (value instanceof Map) + { + TabularType ttype = (TabularType) type; + TabularData data = new TabularDataSupport(ttype); + Iterator it = ((Map) value).entrySet().iterator(); + while (it.hasNext()) + { + Map.Entry entry = (Map.Entry) it.next(); + try + { + data.put(new CompositeDataSupport(ttype.getRowType(), + new String[] { + "key", + "value" + }, + new Object[] { + entry.getKey(), + entry.getValue() + })); + } + catch (OpenDataException e) + { + throw (InternalError) (new InternalError("A problem occurred " + + "converting the map " + + "to a composite data " + + "structure.").initCause(e)); + } + } + return data; + } + CompositeType cType = (CompositeType) type; + Set names = cType.keySet(); + Iterator it = names.iterator(); + List values = new ArrayList(names.size()); + while (it.hasNext()) + { + String field = (String) it.next(); + Method getter = null; + try + { + getter = vClass.getMethod("get" + field); + } + catch (NoSuchMethodException e) + { + /* Ignored; the type tells us it's there. */ + } + try + { + values.add(getter.invoke(value)); + } + catch (IllegalAccessException e) + { + throw new ReflectionException(e, "Failed to retrieve " + field); + } + catch (IllegalArgumentException e) + { + throw new ReflectionException(e, "Failed to retrieve " + field); + } + catch (InvocationTargetException e) + { + throw new MBeanException((Exception) e.getCause(), + "The getter of " + field + + " threw an exception"); + } + } + try + { + return new CompositeDataSupport(cType, + (String[]) + names.toArray(new String[names.size()]), + values.toArray()); + } + catch (OpenDataException e) + { + throw (InternalError) (new InternalError("A problem occurred " + + "converting the value " + + "to a composite data " + + "structure.").initCause(e)); + } + } + + protected MBeanInfo getCachedMBeanInfo() + { + return (MBeanInfo) openInfo; + } + + /** + * Override this method so as to prevent the description of a constructor's + * parameter being @code{null}. Open MBeans can not have @code{null} descriptions, + * but one will occur as the names of parameters aren't stored for reflection. + * + * @param constructor the constructor whose parameter needs describing. + * @param parameter the parameter to be described. + * @param sequenceNo the number of the parameter to describe. + * @return a description of the constructor's parameter. + */ + protected String getDescription(MBeanConstructorInfo constructor, + MBeanParameterInfo parameter, + int sequenceNo) + { + String desc = parameter.getDescription(); + if (desc == null) + return "param" + sequenceNo; + else + return desc; + } + + /** + * Override this method so as to prevent the description of an operation's + * parameter being @code{null}. Open MBeans can not have @code{null} descriptions, + * but one will occur as the names of parameters aren't stored for reflection. + * + * @param operation the operation whose parameter needs describing. + * @param parameter the parameter to be described. + * @param sequenceNo the number of the parameter to describe. + * @return a description of the operation's parameter. + */ + protected String getDescription(MBeanOperationInfo operation, + MBeanParameterInfo parameter, + int sequenceNo) + { + String desc = parameter.getDescription(); + if (desc == null) + return "param" + sequenceNo; + else + return desc; + } + + /** + * Override this method so as to prevent the name of a constructor's + * parameter being @code{null}. Open MBeans can not have @code{null} names, + * but one will occur as the names of parameters aren't stored for reflection. + * + * @param constructor the constructor whose parameter needs a name. + * @param parameter the parameter to be named. + * @param sequenceNo the number of the parameter to name. + * @return a description of the constructor's parameter. + */ + protected String getParameterName(MBeanConstructorInfo constructor, + MBeanParameterInfo parameter, + int sequenceNo) + { + String name = parameter.getName(); + if (name == null) + return "param" + sequenceNo; + else + return name; + } + + /** + * Override this method so as to prevent the name of an operation's + * parameter being @code{null}. Open MBeans can not have @code{null} names, + * but one will occur as the names of parameters aren't stored for reflection. + * + * @param operation the operation whose parameter needs a name. + * @param parameter the parameter to be named. + * @param sequenceNo the number of the parameter to name. + * @return a description of the operation's parameter. + */ + protected String getParameterName(MBeanOperationInfo operation, + MBeanParameterInfo parameter, + int sequenceNo) + { + String name = parameter.getName(); + if (name == null) + return "param" + sequenceNo; + else + return name; + } + + public MBeanInfo getMBeanInfo() + { + super.getMBeanInfo(); + return getCachedMBeanInfo(); + } + + private OpenMBeanParameterInfo[] translateSignature(MBeanParameterInfo[] oldS) + throws OpenDataException + { + OpenMBeanParameterInfo[] sig = new OpenMBeanParameterInfoSupport[oldS.length]; + for (int a = 0; a < oldS.length; ++a) + { + OpenMBeanParameterInfo param = Translator.translate(oldS[a].getType()); + if (param.getMinValue() == null) + { + Object[] lv; + if (param.getLegalValues() == null) + lv = null; + else + lv = param.getLegalValues().toArray(); + sig[a] = new OpenMBeanParameterInfoSupport(oldS[a].getName(), + oldS[a].getDescription(), + ((OpenType<Object>) + param.getOpenType()), + param.getDefaultValue(), + lv); + } + else + sig[a] = new OpenMBeanParameterInfoSupport(oldS[a].getName(), + oldS[a].getDescription(), + ((OpenType<Object>) + param.getOpenType()), + param.getDefaultValue(), + ((Comparable<Object>) + param.getMinValue()), + ((Comparable<Object>) + param.getMaxValue())); + } + return sig; + } + + +} diff --git a/libjava/classpath/gnu/java/lang/management/ClassLoadingMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/ClassLoadingMXBeanImpl.java new file mode 100644 index 000000000..d98a39633 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/ClassLoadingMXBeanImpl.java @@ -0,0 +1,98 @@ +/* ClassLoadingMXBeanImpl.java - Implementation of a class loading 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 java.lang.management.ClassLoadingMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about the class loading + * behaviour of the current invocation of the virtual + * machine. Instances of this bean are obtained by calling + * {@link ManagementFactory#getClassLoadingMXBean()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class ClassLoadingMXBeanImpl + extends BeanImpl + implements ClassLoadingMXBean +{ + + /** + * Constructs a new <code>ClassLoadingMXBeanImpl</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 ClassLoadingMXBeanImpl() + throws NotCompliantMBeanException + { + super(ClassLoadingMXBean.class); + } + + public int getLoadedClassCount() + { + return VMClassLoadingMXBeanImpl.getLoadedClassCount(); + } + + public long getTotalLoadedClassCount() + { + return getLoadedClassCount() + getUnloadedClassCount(); + } + + public long getUnloadedClassCount() + { + return VMClassLoadingMXBeanImpl.getUnloadedClassCount(); + } + + public boolean isVerbose() + { + return VMClassLoadingMXBeanImpl.isVerbose(); + } + + public void setVerbose(boolean verbose) + { + checkControlPermissions(); + VMClassLoadingMXBeanImpl.setVerbose(verbose); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/CompilationMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/CompilationMXBeanImpl.java new file mode 100644 index 000000000..1b77edf5a --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/CompilationMXBeanImpl.java @@ -0,0 +1,105 @@ +/* CompilationMXBeanImpl.java - Implementation of a compilation 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.CompilationMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about the JIT + * compiler of the virtual machine, if one exists. + * Instances of this bean are obtained by calling + * {@link ManagementFactory#getCompilationMXBean()}, + * if this is the case. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class CompilationMXBeanImpl + extends BeanImpl + implements CompilationMXBean +{ + + /** + * Constant for compiler name. + */ + private static final String COMPILER_NAME = "gnu.java.compiler.name"; + + /** + * Constant for compilation time support. + */ + private static final String COMPILATION_TIME_SUPPORT = + "gnu.java.lang.management.CompilationTimeSupport"; + + /** + * Constructs a new <code>CompilationMXBeanImpl</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 CompilationMXBeanImpl() + throws NotCompliantMBeanException + { + super(CompilationMXBean.class); + } + + public String getName() + { + return SystemProperties.getProperty(COMPILER_NAME); + } + + public boolean isCompilationTimeMonitoringSupported() + { + return SystemProperties.getProperty(COMPILATION_TIME_SUPPORT) != null; + } + + public long getTotalCompilationTime() + { + if (isCompilationTimeMonitoringSupported()) + return VMCompilationMXBeanImpl.getTotalCompilationTime(); + else + throw new UnsupportedOperationException("Compilation time monitoring " + + "is not supported"); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/GarbageCollectorMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/GarbageCollectorMXBeanImpl.java new file mode 100644 index 000000000..7a2d762fa --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/GarbageCollectorMXBeanImpl.java @@ -0,0 +1,84 @@ +/* GarbageCollectorMXBeanImpl.java - Implementation of a GC 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 java.lang.management.GarbageCollectorMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about one of the garbage + * collectors used by the current invocation of the + * virtual machine. An instance of this bean for each garbage + * collector is obtained by calling + * {@link ManagementFactory#getGarbageCollectorMXBeans()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class GarbageCollectorMXBeanImpl + extends MemoryManagerMXBeanImpl + implements GarbageCollectorMXBean +{ + + /** + * Constructs a new <code>GarbageCollectorMXBeanImpl</code>. + * + * @param name the name of the garbage collector this bean represents. + * @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 GarbageCollectorMXBeanImpl(String name) + throws NotCompliantMBeanException + { + super(name, GarbageCollectorMXBean.class); + } + + public long getCollectionCount() + { + return VMGarbageCollectorMXBeanImpl.getCollectionCount(name); + } + + public long getCollectionTime() + { + return VMGarbageCollectorMXBeanImpl.getCollectionTime(name); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java new file mode 100644 index 000000000..10e6522f1 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/MemoryMXBeanImpl.java @@ -0,0 +1,281 @@ +/* MemoryMXBeanImpl.java - Implementation of a memory 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.javax.management.ListenerData; + +import java.lang.management.MemoryMXBean; +import java.lang.management.MemoryNotificationInfo; +import java.lang.management.MemoryUsage; + +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import javax.management.ListenerNotFoundException; +import javax.management.MBeanNotificationInfo; +import javax.management.NotCompliantMBeanException; +import javax.management.Notification; +import javax.management.NotificationEmitter; +import javax.management.NotificationFilter; +import javax.management.NotificationListener; + +import javax.management.openmbean.CompositeData; +import javax.management.openmbean.CompositeDataSupport; +import javax.management.openmbean.CompositeType; +import javax.management.openmbean.OpenDataException; +import javax.management.openmbean.OpenType; +import javax.management.openmbean.SimpleType; + +/** + * Provides access to information about the memory + * management of the current invocation of the virtual + * machine. Instances of this bean are obtained by calling + * {@link ManagementFactory#getMemoryMXBean()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class MemoryMXBeanImpl + extends BeanImpl + implements MemoryMXBean, NotificationEmitter +{ + + private List listeners; + + private long notificationCount; + + public static CompositeType notifType; + + public static CompositeType usageType; + + static + { + try + { + CompositeType usageType = + new CompositeType(MemoryUsage.class.getName(), + "Describes the usage levels of a pool", + new String[] { "init", "used", + "committed", "max" + }, + new String[] { "Initial level", + "Used level", + "Committed level", + "Maximum level" + }, + new OpenType[] { + SimpleType.LONG, SimpleType.LONG, + SimpleType.LONG, SimpleType.LONG + }); + CompositeType notifType = + new CompositeType(MemoryNotificationInfo.class.getName(), + "Provides the notification info on memory usage", + new String[] { "poolName", "usage", "count" }, + new String[] { "Name of the memory pool", + "Usage level of the memory pool", + "Number of times the threshold " + + "has been crossed" + }, + new OpenType[] { + SimpleType.STRING, usageType, SimpleType.LONG + }); + } + catch (OpenDataException e) + { + throw new IllegalStateException("Something went wrong in creating " + + "the composite data types.", e); + } + } + + /** + * Constructs a new <code>MemoryMXBeanImpl</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 MemoryMXBeanImpl() + throws NotCompliantMBeanException + { + super(MemoryMXBean.class); + listeners = new ArrayList(); + notificationCount = 0; + } + + public void gc() + { + System.gc(); + } + + public MemoryUsage getHeapMemoryUsage() + { + return VMMemoryMXBeanImpl.getHeapMemoryUsage(); + } + + public MemoryUsage getNonHeapMemoryUsage() + { + return VMMemoryMXBeanImpl.getNonHeapMemoryUsage(); + } + + public int getObjectPendingFinalizationCount() + { + return VMMemoryMXBeanImpl.getObjectPendingFinalizationCount(); + } + + public boolean isVerbose() + { + return VMMemoryMXBeanImpl.isVerbose(); + } + + public void setVerbose(boolean verbose) + { + checkControlPermissions(); + VMMemoryMXBeanImpl.setVerbose(verbose); + } + + public void addNotificationListener(NotificationListener listener, + NotificationFilter filter, + Object passback) + { + if (listener == null) + throw new IllegalArgumentException("Null listener added to bean."); + listeners.add(new ListenerData(listener, filter, passback)); + } + + public MBeanNotificationInfo[] getNotificationInfo() + { + return new MBeanNotificationInfo[] + { + new MBeanNotificationInfo(new String[] + { + MemoryNotificationInfo.MEMORY_COLLECTION_THRESHOLD_EXCEEDED, + MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED + }, + Notification.class.getName(), + "Memory Usage Notifications") + }; + } + + public void removeNotificationListener(NotificationListener listener) + throws ListenerNotFoundException + { + Iterator it = listeners.iterator(); + boolean foundOne = false; + while (it.hasNext()) + { + ListenerData data = (ListenerData) it.next(); + if (data.getListener() == listener) + { + it.remove(); + foundOne = true; + } + } + if (!foundOne) + throw new ListenerNotFoundException("The specified listener, " + listener + + "is not registered with this bean."); + } + + public void removeNotificationListener(NotificationListener listener, + NotificationFilter filter, + Object passback) + throws ListenerNotFoundException + { + if (!(listeners.remove(new ListenerData(listener, filter, passback)))) + { + throw new ListenerNotFoundException("The specified listener, " + listener + + " with filter " + filter + + "and passback " + passback + + ", is not registered with this bean."); + } + } + + void fireNotification(String type, String poolName, long init, long used, + long committed, long max, long count) + { + Notification notif = new Notification(type, this, notificationCount); + MemoryUsage usage = new MemoryUsage(init, used, committed, max); + CompositeData data; + try + { + data = new CompositeDataSupport(notifType, + new String[] { + "poolName", "usage", "count" + }, + new Object[] { + poolName, usage, Long.valueOf(count) + }); + } + catch (OpenDataException e) + { + throw new IllegalStateException("Something went wrong in creating " + + "the composite data instance.", e); + } + notif.setUserData(data); + Iterator it = listeners.iterator(); + while (it.hasNext()) + { + ListenerData ldata = (ListenerData) it.next(); + NotificationFilter filter = ldata.getFilter(); + if (filter == null || filter.isNotificationEnabled(notif)) + ldata.getListener().handleNotification(notif, ldata.getPassback()); + } + ++notificationCount; + } + + void fireThresholdExceededNotification(String poolName, long init, + long used, long committed, + long max, long count) + { + fireNotification(MemoryNotificationInfo.MEMORY_THRESHOLD_EXCEEDED, + poolName, init, used, committed, max, count); + } + + void fireCollectionThresholdExceededNotification(String poolName, + long init, + long used, + long committed, + long max, + long count) + { + fireNotification(MemoryNotificationInfo.MEMORY_COLLECTION_THRESHOLD_EXCEEDED, + poolName, init, used, committed, max, count); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/MemoryManagerMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/MemoryManagerMXBeanImpl.java new file mode 100644 index 000000000..51d0ed972 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/MemoryManagerMXBeanImpl.java @@ -0,0 +1,112 @@ +/* MemoryManagerMXBeanImpl.java - Implementation of a memory manager 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 java.lang.management.MemoryManagerMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about one of the memory + * managers used by the current invocation of the + * virtual machine. An instance of this bean for each memory + * manager is obtained by calling + * {@link ManagementFactory#getMemoryPoolMXBeans()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public class MemoryManagerMXBeanImpl + extends BeanImpl + implements MemoryManagerMXBean +{ + + /** + * The name of the memory manager. + */ + protected String name; + + /** + * Constructs a new <code>MemoryManagerMXBeanImpl</code>. + * + * @param name the name of the manager this bean represents. + * @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 MemoryManagerMXBeanImpl(String name) + throws NotCompliantMBeanException + { + this(name, MemoryManagerMXBean.class); + } + + /** + * Constructs a new <code>MemoryManagerMXBeanImpl</code> + * implementing the specified bean interface. + * + * @param name the name of the manager this bean represents. + * @param iface the bean interface being implemented. + * @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. + */ + protected MemoryManagerMXBeanImpl(String name, Class iface) + throws NotCompliantMBeanException + { + super(iface); + this.name = name; + } + + public String[] getMemoryPoolNames() + { + return VMMemoryManagerMXBeanImpl.getMemoryPoolNames(name); + } + + public String getName() + { + return name; + } + + public boolean isValid() + { + return VMMemoryManagerMXBeanImpl.isValid(name); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/MemoryPoolMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/MemoryPoolMXBeanImpl.java new file mode 100644 index 000000000..d92e6703f --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/MemoryPoolMXBeanImpl.java @@ -0,0 +1,226 @@ +/* MemoryPoolMXBeanImpl.java - Implementation of a memory pool 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.MemoryPoolMXBean; +import java.lang.management.MemoryType; +import java.lang.management.MemoryUsage; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about one of the memory + * resources or pools used by the current invocation of the + * virtual machine. An instance of this bean for each memory + * pool is obtained by calling + * {@link ManagementFactory#getMemoryPoolMXBeans()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class MemoryPoolMXBeanImpl + extends BeanImpl + implements MemoryPoolMXBean +{ + + /** + * The name of the pool. + */ + private String name; + + /** + * Constant for collection usage threshold. + */ + private static final String COLLECTION_USAGE_THRESHOLD = + "gnu.java.lang.management.CollectionUsageThresholdSupport"; + + /** + * Constant for thread time support. + */ + private static final String USAGE_THRESHOLD = + "gnu.java.lang.management.UsageThresholdSupport"; + + /** + * Constructs a new <code>MemoryPoolMXBeanImpl</code>. + * + * @param name the name of the pool this bean represents. + * @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 MemoryPoolMXBeanImpl(String name) + throws NotCompliantMBeanException + { + super(MemoryPoolMXBean.class); + this.name = name; + } + + public MemoryUsage getCollectionUsage() + { + return VMMemoryPoolMXBeanImpl.getCollectionUsage(name); + } + + public long getCollectionUsageThreshold() + { + if (isCollectionUsageThresholdSupported()) + return VMMemoryPoolMXBeanImpl.getCollectionUsageThreshold(name); + else + throw new UnsupportedOperationException("A collection usage "+ + "threshold is not supported."); + } + + public long getCollectionUsageThresholdCount() + { + if (isCollectionUsageThresholdSupported()) + return VMMemoryPoolMXBeanImpl.getCollectionUsageThresholdCount(name); + else + throw new UnsupportedOperationException("A collection usage "+ + "threshold is not supported."); + } + + public String[] getMemoryManagerNames() + { + return VMMemoryPoolMXBeanImpl.getMemoryManagerNames(name); + } + + public String getName() + { + return name; + } + + public MemoryUsage getPeakUsage() + { + if (isValid()) + return VMMemoryPoolMXBeanImpl.getPeakUsage(name); + else + return null; + } + + public MemoryType getType() + { + return + MemoryType.valueOf(VMMemoryPoolMXBeanImpl.getType(name)); + } + + public MemoryUsage getUsage() + { + if (isValid()) + return VMMemoryPoolMXBeanImpl.getUsage(name); + else + return null; + } + + public long getUsageThreshold() + { + if (isUsageThresholdSupported()) + return VMMemoryPoolMXBeanImpl.getUsageThreshold(name); + else + throw new UnsupportedOperationException("A usage threshold " + + "is not supported."); + } + + public long getUsageThresholdCount() + { + if (isUsageThresholdSupported()) + return VMMemoryPoolMXBeanImpl.getUsageThresholdCount(name); + else + throw new UnsupportedOperationException("A usage threshold " + + "is not supported."); + } + + public boolean isCollectionUsageThresholdExceeded() + { + return getCollectionUsage().getUsed() >= getCollectionUsageThreshold(); + } + + public boolean isCollectionUsageThresholdSupported() + { + return SystemProperties.getProperty(COLLECTION_USAGE_THRESHOLD) != null; + } + + public boolean isUsageThresholdExceeded() + { + return getUsage().getUsed() >= getUsageThreshold(); + } + + public boolean isUsageThresholdSupported() + { + return SystemProperties.getProperty(USAGE_THRESHOLD) != null; + } + + public boolean isValid() + { + return VMMemoryPoolMXBeanImpl.isValid(name); + } + + public void resetPeakUsage() + { + checkControlPermissions(); + VMMemoryPoolMXBeanImpl.resetPeakUsage(name); + } + + public void setCollectionUsageThreshold(long threshold) + { + checkControlPermissions(); + if (threshold < 0) + throw new IllegalArgumentException("Threshold of " + threshold + + "is less than zero."); + if (isCollectionUsageThresholdSupported()) + VMMemoryPoolMXBeanImpl.setCollectionUsageThreshold(name, threshold); + else + throw new UnsupportedOperationException("A collection usage "+ + "threshold is not supported."); + } + + public void setUsageThreshold(long threshold) + { + checkControlPermissions(); + if (threshold < 0) + throw new IllegalArgumentException("Threshold of " + threshold + + "is less than zero."); + if (isUsageThresholdSupported()) + VMMemoryPoolMXBeanImpl.setUsageThreshold(name, threshold); + else + throw new UnsupportedOperationException("A usage threshold " + + "is not supported."); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/OperatingSystemMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/OperatingSystemMXBeanImpl.java new file mode 100644 index 000000000..7f5a9586c --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/OperatingSystemMXBeanImpl.java @@ -0,0 +1,95 @@ +/* OperatingSystemMXBeanImpl.java - Implementation of an operating system 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 java.lang.management.OperatingSystemMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about the underlying operating + * system. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class OperatingSystemMXBeanImpl + extends BeanImpl + implements OperatingSystemMXBean +{ + + /** + * Constructs a new <code>OperatingSystemMXBeanImpl</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 OperatingSystemMXBeanImpl() + throws NotCompliantMBeanException + { + super(OperatingSystemMXBean.class); + } + + public String getArch() + { + return System.getProperty("os.arch"); + } + + public int getAvailableProcessors() + { + return Runtime.getRuntime().availableProcessors(); + } + + public String getName() + { + return System.getProperty("os.name"); + } + + public double getSystemLoadAverage() + { + return VMOperatingSystemMXBeanImpl.getSystemLoadAverage(); + } + + public String getVersion() + { + return System.getProperty("os.version"); + } + +} 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; + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/ThreadMXBeanImpl.java b/libjava/classpath/gnu/java/lang/management/ThreadMXBeanImpl.java new file mode 100644 index 000000000..97040997b --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/ThreadMXBeanImpl.java @@ -0,0 +1,350 @@ +/* ThreadMXBeanImpl.java - Implementation of a thread 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.ThreadInfo; +import java.lang.management.ThreadMXBean; + +import javax.management.NotCompliantMBeanException; + +/** + * Provides access to information about the threads + * of the virtual machine. An instance of this bean is + * obtained by calling + * {@link ManagementFactory#getThreadMXBean()}. + * See {@link java.lang.management.ThreadMXBean} for + * full documentation. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public final class ThreadMXBeanImpl + extends BeanImpl + implements ThreadMXBean +{ + + /** + * Constant for current thread time support. + */ + private static final String CURRENT_THREAD_TIME_SUPPORT = + "gnu.java.lang.management.CurrentThreadTimeSupport"; + + /** + * Constant for thread time support. + */ + private static final String THREAD_TIME_SUPPORT = + "gnu.java.lang.management.ThreadTimeSupport"; + + /** + * Constant for thread contention support. + */ + private static final String CONTENTION_SUPPORT = + "gnu.java.lang.management.ThreadContentionSupport"; + + /** + * Constant for initial value of thread time support. + */ + private static final String TIME_ENABLED = + "gnu.java.lang.management.ThreadTimeInitallyEnabled"; + + /** + * Constant for monitor usage monitoring support. + */ + private static final String MONITOR_SUPPORT = + "gnu.java.lang.management.MonitorUsageMonitoringSupport"; + + /** + * Constant for ownable synchronizer usage monitoring support. + */ + private static final String SYNCHRONIZER_SUPPORT = + "gnu.java.lang.management.OwnableSynchronizerUsageMonitoringSupport"; + + /** + * Flag to indicate whether time monitoring is enabled or not. + */ + private boolean timeEnabled; + + /** + * Flag to indicate whether contention monitoring is enabled or not. + */ + private boolean contentionEnabled; + + /** + * Default constructor to set up flag states. The + * VM has to specify whether time monitoring is initially + * enabled or not. + * + * @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 ThreadMXBeanImpl() + throws NotCompliantMBeanException + { + super(ThreadMXBean.class); + timeEnabled = Boolean.parseBoolean(SystemProperties.getProperty(TIME_ENABLED)); + contentionEnabled = false; + } + + public ThreadInfo[] dumpAllThreads(boolean lockedMonitors, + boolean lockedSynchronizers) + { + return getThreadInfo(getAllThreadIds(), lockedMonitors, + lockedSynchronizers); + } + + public long[] findDeadlockedThreads() + { + checkMonitorPermissions(); + if (!isSynchronizerUsageSupported()) + throw new UnsupportedOperationException("Ownable synchronizer usage " + + "monitoring is not provided " + + "by this VM."); + return VMThreadMXBeanImpl.findDeadlockedThreads(); + } + + public long[] findMonitorDeadlockedThreads() + { + checkMonitorPermissions(); + return VMThreadMXBeanImpl.findMonitorDeadlockedThreads(); + } + + public long[] getAllThreadIds() + { + checkMonitorPermissions(); + return VMThreadMXBeanImpl.getAllThreadIds(); + } + + public long getCurrentThreadCpuTime() + { + if (!isCurrentThreadCpuTimeSupported()) + throw new UnsupportedOperationException("Current thread CPU " + + "time not supported."); + if (!timeEnabled) + return -1; + return VMThreadMXBeanImpl.getCurrentThreadCpuTime(); + } + + public long getCurrentThreadUserTime() + { + if (!isCurrentThreadCpuTimeSupported()) + throw new UnsupportedOperationException("Current thread user " + + "time not supported."); + if (!timeEnabled) + return -1; + return VMThreadMXBeanImpl.getCurrentThreadUserTime(); + } + + public int getDaemonThreadCount() + { + return VMThreadMXBeanImpl.getDaemonThreadCount(); + } + + public int getPeakThreadCount() + { + return VMThreadMXBeanImpl.getPeakThreadCount(); + } + + public int getThreadCount() + { + return VMThreadMXBeanImpl.getThreadCount(); + } + + public long getThreadCpuTime(long id) + { + if (!isThreadCpuTimeSupported()) + throw new UnsupportedOperationException("Thread CPU time not " + + "supported."); + if (id <= 0) + throw new IllegalArgumentException("Invalid thread id: " + id); + if (!timeEnabled) + return -1; + return VMThreadMXBeanImpl.getThreadCpuTime(id); + } + + public ThreadInfo getThreadInfo(long id) + { + return getThreadInfo(id, 0); + } + + public ThreadInfo[] getThreadInfo(long[] ids) + { + return getThreadInfo(ids, 0); + } + + public ThreadInfo getThreadInfo(long id, int maxDepth) + { + checkMonitorPermissions(); + if (id <= 0) + throw new IllegalArgumentException("Invalid thread id: " + id); + if (maxDepth < 0) + throw new IllegalArgumentException("Invalid depth: " + maxDepth); + return VMThreadMXBeanImpl.getThreadInfoForId(id, maxDepth); + } + + public ThreadInfo[] getThreadInfo(long[] ids, int maxDepth) + { + checkMonitorPermissions(); + if (maxDepth < 0) + throw new IllegalArgumentException("Invalid depth: " + maxDepth); + ThreadInfo[] infos = new ThreadInfo[ids.length]; + for (int a = 0; a < ids.length; ++a) + { + if (ids[a] <= 0) + throw new IllegalArgumentException("Invalid thread id " + a + + ": " + ids[a]); + infos[a] = VMThreadMXBeanImpl.getThreadInfoForId(ids[a], maxDepth); + } + return infos; + } + + public ThreadInfo[] getThreadInfo(long[] ids, boolean lockedMonitors, + boolean lockedSynchronizers) + { + checkMonitorPermissions(); + if (lockedMonitors && !isObjectMonitorUsageSupported()) + throw new UnsupportedOperationException("Monitor usage monitoring is " + + "not provided by this VM."); + if (lockedSynchronizers && !isSynchronizerUsageSupported()) + throw new UnsupportedOperationException("Ownable synchronizer usage " + + "monitoring is not provided " + + "by this VM."); + ThreadInfo[] infos = getThreadInfo(ids, Integer.MAX_VALUE); + if (lockedMonitors) + for (ThreadInfo info : infos) + VMThreadMXBeanImpl.getMonitorInfo(info); + if (lockedSynchronizers) + for (ThreadInfo info : infos) + VMThreadMXBeanImpl.getLockInfo(info); + return infos; + } + + public long getThreadUserTime(long id) + { + if (!isThreadCpuTimeSupported()) + throw new UnsupportedOperationException("Thread user time not " + + "supported."); + if (id <= 0) + throw new IllegalArgumentException("Invalid thread id: " + id); + if (!timeEnabled) + return -1; + return VMThreadMXBeanImpl.getThreadUserTime(id); + } + + public long getTotalStartedThreadCount() + { + return VMThreadMXBeanImpl.getTotalStartedThreadCount(); + } + + public boolean isCurrentThreadCpuTimeSupported() + { + if (isThreadCpuTimeSupported()) + return true; + return SystemProperties.getProperty(CURRENT_THREAD_TIME_SUPPORT) != null; + } + + public boolean isObjectMonitorUsageSupported() + { + return SystemProperties.getProperty(MONITOR_SUPPORT) != null; + } + + public boolean isSynchronizerUsageSupported() + { + return SystemProperties.getProperty(SYNCHRONIZER_SUPPORT) != null; + } + + public boolean isThreadContentionMonitoringEnabled() + { + if (isThreadContentionMonitoringSupported()) + return contentionEnabled; + else + throw new UnsupportedOperationException("Contention monitoring " + + "not supported."); + } + + public boolean isThreadContentionMonitoringSupported() + { + return SystemProperties.getProperty(CONTENTION_SUPPORT) != null; + } + + public boolean isThreadCpuTimeEnabled() + { + if (isThreadCpuTimeSupported() || + isCurrentThreadCpuTimeSupported()) + return timeEnabled; + else + throw new UnsupportedOperationException("Thread time not " + + "supported."); + } + + public boolean isThreadCpuTimeSupported() + { + return SystemProperties.getProperty(THREAD_TIME_SUPPORT) != null; + } + + public void resetPeakThreadCount() + { + checkControlPermissions(); + VMThreadMXBeanImpl.resetPeakThreadCount(); + } + + public void setThreadContentionMonitoringEnabled(boolean enable) + { + checkControlPermissions(); + if (isThreadContentionMonitoringSupported()) + contentionEnabled = enable; + else + throw new UnsupportedOperationException("Contention monitoring " + + "not supported."); + } + + public void setThreadCpuTimeEnabled(boolean enable) + { + checkControlPermissions(); + if (isThreadCpuTimeSupported() || + isCurrentThreadCpuTimeSupported()) + timeEnabled = enable; + else + throw new UnsupportedOperationException("Thread time not " + + "supported."); + } + +} diff --git a/libjava/classpath/gnu/java/lang/management/package.html b/libjava/classpath/gnu/java/lang/management/package.html new file mode 100644 index 000000000..fc1bafc0c --- /dev/null +++ b/libjava/classpath/gnu/java/lang/management/package.html @@ -0,0 +1,46 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> +<!-- package.html - describes classes in gnu.java.lang.management package. + Copyright (C) 2006 Free Software Foundation, Inc. + +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. --> + +<html> +<head><title>GNU Classpath - gnu.java.lang.management</title></head> + +<body> +<p>GNU implementations of the Java system management beans.</p> + +</body> +</html> |