| /* |
| * Copyright (c) 2005, 2008, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.management; |
| |
| import javax.management.openmbean.CompositeType; |
| import javax.management.openmbean.CompositeData; |
| import javax.management.openmbean.CompositeDataSupport; |
| import javax.management.openmbean.OpenDataException; |
| |
| /** |
| * A CompositeData for StackTraceElement 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 StackTraceElementCompositeData extends LazyCompositeData { |
| private final StackTraceElement ste; |
| |
| private StackTraceElementCompositeData(StackTraceElement ste) { |
| this.ste = ste; |
| } |
| |
| public StackTraceElement getStackTraceElement() { |
| return ste; |
| } |
| |
| public static StackTraceElement from(CompositeData cd) { |
| validateCompositeData(cd); |
| |
| return new StackTraceElement(getString(cd, CLASS_NAME), |
| getString(cd, METHOD_NAME), |
| getString(cd, FILE_NAME), |
| getInt(cd, LINE_NUMBER)); |
| } |
| |
| public static CompositeData toCompositeData(StackTraceElement ste) { |
| StackTraceElementCompositeData cd = new StackTraceElementCompositeData(ste); |
| return cd.getCompositeData(); |
| } |
| |
| protected CompositeData getCompositeData() { |
| // CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH |
| // stackTraceElementItemNames! |
| final Object[] stackTraceElementItemValues = { |
| ste.getClassName(), |
| ste.getMethodName(), |
| ste.getFileName(), |
| new Integer(ste.getLineNumber()), |
| new Boolean(ste.isNativeMethod()), |
| }; |
| try { |
| return new CompositeDataSupport(stackTraceElementCompositeType, |
| stackTraceElementItemNames, |
| stackTraceElementItemValues); |
| } catch (OpenDataException e) { |
| // Should never reach here |
| throw new AssertionError(e); |
| } |
| } |
| |
| private static final CompositeType stackTraceElementCompositeType; |
| static { |
| try { |
| stackTraceElementCompositeType = (CompositeType) |
| MappedMXBeanType.toOpenType(StackTraceElement.class); |
| } catch (OpenDataException e) { |
| // Should never reach here |
| throw new AssertionError(e); |
| } |
| } |
| |
| // Attribute names |
| private static final String CLASS_NAME = "className"; |
| private static final String METHOD_NAME = "methodName"; |
| private static final String FILE_NAME = "fileName"; |
| private static final String LINE_NUMBER = "lineNumber"; |
| private static final String NATIVE_METHOD = "nativeMethod"; |
| |
| private static final String[] stackTraceElementItemNames = { |
| CLASS_NAME, |
| METHOD_NAME, |
| FILE_NAME, |
| LINE_NUMBER, |
| NATIVE_METHOD, |
| }; |
| |
| /** 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(stackTraceElementCompositeType, cd.getCompositeType())) { |
| throw new IllegalArgumentException( |
| "Unexpected composite type for StackTraceElement"); |
| } |
| } |
| |
| private static final long serialVersionUID = -2704607706598396827L; |
| } |