| /* |
| * 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 com.sun.management.VMOption; |
| import com.sun.management.VMOption.Origin; |
| import javax.management.openmbean.CompositeType; |
| import javax.management.openmbean.CompositeData; |
| import javax.management.openmbean.CompositeDataSupport; |
| import javax.management.openmbean.OpenDataException; |
| |
| /** |
| * A CompositeData for VMOption 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 VMOptionCompositeData extends LazyCompositeData { |
| private final VMOption option; |
| |
| private VMOptionCompositeData(VMOption option) { |
| this.option = option; |
| } |
| |
| public VMOption getVMOption() { |
| return option; |
| } |
| |
| public static CompositeData toCompositeData(VMOption option) { |
| VMOptionCompositeData vcd = new VMOptionCompositeData(option); |
| return vcd.getCompositeData(); |
| } |
| |
| protected CompositeData getCompositeData() { |
| // CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH |
| // vmOptionItemNames! |
| final Object[] vmOptionItemValues = { |
| option.getName(), |
| option.getValue(), |
| new Boolean(option.isWriteable()), |
| option.getOrigin().toString(), |
| }; |
| |
| try { |
| return new CompositeDataSupport(vmOptionCompositeType, |
| vmOptionItemNames, |
| vmOptionItemValues); |
| } catch (OpenDataException e) { |
| // Should never reach here |
| throw new AssertionError(e); |
| } |
| } |
| |
| private static final CompositeType vmOptionCompositeType; |
| static { |
| try { |
| vmOptionCompositeType = (CompositeType) |
| MappedMXBeanType.toOpenType(VMOption.class); |
| } catch (OpenDataException e) { |
| // Should never reach here |
| throw new AssertionError(e); |
| } |
| } |
| |
| static CompositeType getVMOptionCompositeType() { |
| return vmOptionCompositeType; |
| } |
| |
| private static final String NAME = "name"; |
| private static final String VALUE = "value"; |
| private static final String WRITEABLE = "writeable"; |
| private static final String ORIGIN = "origin"; |
| |
| private static final String[] vmOptionItemNames = { |
| NAME, |
| VALUE, |
| WRITEABLE, |
| ORIGIN, |
| }; |
| |
| public static String getName(CompositeData cd) { |
| return getString(cd, NAME); |
| } |
| public static String getValue(CompositeData cd) { |
| return getString(cd, VALUE); |
| } |
| public static Origin getOrigin(CompositeData cd) { |
| String o = getString(cd, ORIGIN); |
| return Enum.valueOf(Origin.class, o); |
| } |
| public static boolean isWriteable(CompositeData cd) { |
| return getBoolean(cd, WRITEABLE); |
| } |
| |
| /** 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(vmOptionCompositeType, cd.getCompositeType())) { |
| throw new IllegalArgumentException( |
| "Unexpected composite type for VMOption"); |
| } |
| } |
| |
| private static final long serialVersionUID = -2395573975093578470L; |
| } |