--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/management/MonitorInfoCompositeData.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.management;
+
+import java.lang.management.MonitorInfo;
+import javax.management.openmbean.CompositeType;
+import javax.management.openmbean.CompositeData;
+import javax.management.openmbean.CompositeDataSupport;
+import javax.management.openmbean.OpenDataException;
+import java.util.Set;
+
+/**
+ * A CompositeData for MonitorInfo for the local management support.
+ * This class avoids the performance penalty paid to the
+ * construction of a CompositeData use in the local case.
+ */
+public class MonitorInfoCompositeData extends LazyCompositeData {
+ private final MonitorInfo lock;
+
+ private MonitorInfoCompositeData(MonitorInfo mi) {
+ this.lock = mi;
+ }
+
+ public MonitorInfo getMonitorInfo() {
+ return lock;
+ }
+
+ public static CompositeData toCompositeData(MonitorInfo mi) {
+ MonitorInfoCompositeData micd = new MonitorInfoCompositeData(mi);
+ return micd.getCompositeData();
+ }
+
+ protected CompositeData getCompositeData() {
+ // CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH
+ // monitorInfoItemNames!
+
+ int len = monitorInfoItemNames.length;
+ Object[] values = new Object[len];
+ CompositeData li = LockDataConverter.toLockInfoCompositeData(lock);
+
+ for (int i = 0; i < len; i++) {
+ String item = monitorInfoItemNames[i];
+ if (item.equals(LOCKED_STACK_FRAME)) {
+ StackTraceElement ste = lock.getLockedStackFrame();
+ values[i] = (ste != null ? StackTraceElementCompositeData.
+ toCompositeData(ste)
+ : null);
+ } else if (item.equals(LOCKED_STACK_DEPTH)) {
+ values[i] = new Integer(lock.getLockedStackDepth());
+ } else {
+ values[i] = li.get(item);
+ }
+ }
+
+ try {
+ return new CompositeDataSupport(monitorInfoCompositeType,
+ monitorInfoItemNames,
+ values);
+ } catch (OpenDataException e) {
+ // Should never reach here
+ throw Util.newInternalError(e);
+ }
+ }
+
+ private static final CompositeType monitorInfoCompositeType;
+ private static final String[] monitorInfoItemNames;
+ static {
+ try {
+ monitorInfoCompositeType = (CompositeType)
+ MappedMXBeanType.toOpenType(MonitorInfo.class);
+ Set<String> s = monitorInfoCompositeType.keySet();
+ monitorInfoItemNames = (String[]) s.toArray(new String[0]);
+ } catch (OpenDataException e) {
+ // Should never reach here
+ throw Util.newInternalError(e);
+ }
+ }
+
+ static CompositeType getMonitorInfoCompositeType() {
+ return monitorInfoCompositeType;
+ }
+
+ private static final String CLASS_NAME = "className";
+ private static final String IDENTITY_HASH_CODE = "identityHashCode";
+ private static final String LOCKED_STACK_FRAME = "lockedStackFrame";
+ private static final String LOCKED_STACK_DEPTH = "lockedStackDepth";
+
+ public static String getClassName(CompositeData cd) {
+ return getString(cd, CLASS_NAME);
+ }
+
+ public static int getIdentityHashCode(CompositeData cd) {
+ return getInt(cd, IDENTITY_HASH_CODE);
+ }
+
+ public static StackTraceElement getLockedStackFrame(CompositeData cd) {
+ CompositeData ste = (CompositeData) cd.get(LOCKED_STACK_FRAME);
+ if (ste != null) {
+ return StackTraceElementCompositeData.from(ste);
+ } else {
+ return null;
+ }
+ }
+
+ public static int getLockedStackDepth(CompositeData cd) {
+ return getInt(cd, LOCKED_STACK_DEPTH);
+ }
+
+ /** Validate if the input CompositeData has the expected
+ * CompositeType (i.e. contain all attributes with expected
+ * names and types).
+ */
+ public static void validateCompositeData(CompositeData cd) {
+ if (cd == null) {
+ throw new NullPointerException("Null CompositeData");
+ }
+
+ if (!isTypeMatched(monitorInfoCompositeType, cd.getCompositeType())) {
+ throw new IllegalArgumentException(
+ "Unexpected composite type for MonitorInfo");
+ }
+ }
+}