author | xdono |
Wed, 02 Jul 2008 12:55:45 -0700 | |
changeset 715 | f16baef3a20e |
parent 401 | ef01e0dccd63 |
child 4173 | d01972926813 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2004-2008 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package sun.management; |
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import java.lang.management.MemoryUsage; |
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import java.lang.reflect.Method; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Collections; |
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import java.io.InvalidObjectException; |
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import javax.management.openmbean.CompositeType; |
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import javax.management.openmbean.CompositeData; |
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import javax.management.openmbean.CompositeDataSupport; |
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import javax.management.openmbean.TabularData; |
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import javax.management.openmbean.SimpleType; |
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import javax.management.openmbean.OpenType; |
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import javax.management.openmbean.OpenDataException; |
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import com.sun.management.GcInfo; |
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/** |
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* A CompositeData for GcInfo for the local management support. |
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* This class avoids the performance penalty paid to the |
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* construction of a CompositeData use in the local case. |
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*/ |
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public class GcInfoCompositeData extends LazyCompositeData { |
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private final GcInfo info; |
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private final GcInfoBuilder builder; |
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private final Object[] gcExtItemValues; |
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public GcInfoCompositeData(GcInfo info, |
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GcInfoBuilder builder, |
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Object[] gcExtItemValues) { |
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this.info = info; |
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this.builder = builder; |
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this.gcExtItemValues = gcExtItemValues; |
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} |
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public GcInfo getGcInfo() { |
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return info; |
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} |
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protected CompositeData getCompositeData() { |
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// CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH |
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// baseGcInfoItemNames! |
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final Object[] baseGcInfoItemValues; |
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try { |
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baseGcInfoItemValues = new Object[] { |
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new Long(info.getId()), |
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new Long(info.getStartTime()), |
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new Long(info.getEndTime()), |
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new Long(info.getDuration()), |
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memoryUsageMapType.toOpenTypeData(info.getMemoryUsageBeforeGc()), |
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memoryUsageMapType.toOpenTypeData(info.getMemoryUsageAfterGc()), |
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}; |
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} catch (OpenDataException e) { |
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// Should never reach here |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} |
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// Get the item values for the extension attributes |
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final int gcExtItemCount = builder.getGcExtItemCount(); |
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if (gcExtItemCount == 0 && |
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gcExtItemValues != null && gcExtItemValues.length != 0) { |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError("Unexpected Gc Extension Item Values"); |
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} |
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if (gcExtItemCount > 0 && (gcExtItemValues == null || |
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gcExtItemCount != gcExtItemValues.length)) { |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError("Unmatched Gc Extension Item Values"); |
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} |
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Object[] values = new Object[baseGcInfoItemValues.length + |
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gcExtItemCount]; |
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System.arraycopy(baseGcInfoItemValues, 0, values, 0, |
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baseGcInfoItemValues.length); |
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if (gcExtItemCount > 0) { |
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System.arraycopy(gcExtItemValues, 0, values, |
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baseGcInfoItemValues.length, gcExtItemCount); |
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} |
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try { |
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return new CompositeDataSupport(builder.getGcInfoCompositeType(), |
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builder.getItemNames(), |
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values); |
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} catch (OpenDataException e) { |
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// Should never reach here |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} |
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} |
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private static final String ID = "id"; |
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private static final String START_TIME = "startTime"; |
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private static final String END_TIME = "endTime"; |
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private static final String DURATION = "duration"; |
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private static final String MEMORY_USAGE_BEFORE_GC = "memoryUsageBeforeGc"; |
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private static final String MEMORY_USAGE_AFTER_GC = "memoryUsageAfterGc"; |
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private static final String[] baseGcInfoItemNames = { |
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ID, |
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START_TIME, |
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END_TIME, |
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DURATION, |
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MEMORY_USAGE_BEFORE_GC, |
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MEMORY_USAGE_AFTER_GC, |
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}; |
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private static MappedMXBeanType memoryUsageMapType; |
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static { |
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try { |
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Method m = GcInfo.class.getMethod("getMemoryUsageBeforeGc"); |
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memoryUsageMapType = |
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MappedMXBeanType.getMappedType(m.getGenericReturnType()); |
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} catch (NoSuchMethodException e) { |
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// Should never reach here |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} catch (OpenDataException e) { |
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// Should never reach here |
|
401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} |
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} |
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static String[] getBaseGcInfoItemNames() { |
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return baseGcInfoItemNames; |
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} |
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private static OpenType[] baseGcInfoItemTypes = null; |
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static synchronized OpenType[] getBaseGcInfoItemTypes() { |
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if (baseGcInfoItemTypes == null) { |
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OpenType<?> memoryUsageOpenType = memoryUsageMapType.getOpenType(); |
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baseGcInfoItemTypes = new OpenType[] { |
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SimpleType.LONG, |
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SimpleType.LONG, |
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SimpleType.LONG, |
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SimpleType.LONG, |
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memoryUsageOpenType, |
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memoryUsageOpenType, |
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}; |
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} |
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return baseGcInfoItemTypes; |
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} |
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public static long getId(CompositeData cd) { |
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return getLong(cd, ID); |
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} |
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public static long getStartTime(CompositeData cd) { |
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return getLong(cd, START_TIME); |
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} |
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public static long getEndTime(CompositeData cd) { |
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return getLong(cd, END_TIME); |
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} |
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public static Map<String, MemoryUsage> |
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getMemoryUsageBeforeGc(CompositeData cd) { |
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try { |
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TabularData td = (TabularData) cd.get(MEMORY_USAGE_BEFORE_GC); |
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return cast(memoryUsageMapType.toJavaTypeData(td)); |
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} catch (InvalidObjectException e) { |
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// Should never reach here |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} catch (OpenDataException e) { |
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// Should never reach here |
|
401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} |
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} |
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@SuppressWarnings("unchecked") |
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public static Map<String, MemoryUsage> cast(Object x) { |
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return (Map<String, MemoryUsage>) x; |
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} |
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public static Map<String, MemoryUsage> |
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getMemoryUsageAfterGc(CompositeData cd) { |
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try { |
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TabularData td = (TabularData) cd.get(MEMORY_USAGE_AFTER_GC); |
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//return (Map<String,MemoryUsage>) |
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return cast(memoryUsageMapType.toJavaTypeData(td)); |
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} catch (InvalidObjectException e) { |
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// Should never reach here |
|
401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} catch (OpenDataException e) { |
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// Should never reach here |
|
401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError(e); |
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} |
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} |
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/** |
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* Returns true if the input CompositeData has the expected |
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* CompositeType (i.e. contain all attributes with expected |
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* names and types). Otherwise, return false. |
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*/ |
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public static void validateCompositeData(CompositeData cd) { |
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if (cd == null) { |
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throw new NullPointerException("Null CompositeData"); |
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} |
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if (!isTypeMatched(getBaseGcInfoCompositeType(), |
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cd.getCompositeType())) { |
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throw new IllegalArgumentException( |
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"Unexpected composite type for GcInfo"); |
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} |
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} |
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// This is only used for validation. |
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private static CompositeType baseGcInfoCompositeType = null; |
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private static synchronized CompositeType getBaseGcInfoCompositeType() { |
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if (baseGcInfoCompositeType == null) { |
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try { |
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baseGcInfoCompositeType = |
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new CompositeType("sun.management.BaseGcInfoCompositeType", |
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"CompositeType for Base GcInfo", |
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getBaseGcInfoItemNames(), |
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getBaseGcInfoItemNames(), |
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getBaseGcInfoItemTypes()); |
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} catch (OpenDataException e) { |
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// shouldn't reach here |
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throw Util.newException(e); |
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} |
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} |
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return baseGcInfoCompositeType; |
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} |
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} |