| /* |
| * Copyright (c) 2005, 2012, 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 java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import javax.management.ObjectName; |
| |
| import com.sun.management.HotSpotDiagnosticMXBean; |
| import com.sun.management.VMOption; |
| |
| /** |
| * Implementation of the diagnostic MBean for Hotspot VM. |
| */ |
| public class HotSpotDiagnostic implements HotSpotDiagnosticMXBean { |
| public HotSpotDiagnostic() { |
| } |
| |
| public native void dumpHeap(String outputFile, boolean live) throws IOException; |
| |
| public List<VMOption> getDiagnosticOptions() { |
| List<Flag> allFlags = Flag.getAllFlags(); |
| List<VMOption> result = new ArrayList<VMOption>(); |
| for (Flag flag : allFlags) { |
| if (flag.isWriteable() && flag.isExternal()) { |
| result.add(flag.getVMOption()); |
| } |
| } |
| return result; |
| } |
| |
| public VMOption getVMOption(String name) { |
| if (name == null) { |
| throw new NullPointerException("name cannot be null"); |
| } |
| |
| Flag f = Flag.getFlag(name); |
| if (f == null) { |
| throw new IllegalArgumentException("VM option \"" + |
| name + "\" does not exist"); |
| } |
| return f.getVMOption(); |
| } |
| |
| public void setVMOption(String name, String value) { |
| if (name == null) { |
| throw new NullPointerException("name cannot be null"); |
| } |
| if (value == null) { |
| throw new NullPointerException("value cannot be null"); |
| } |
| |
| Util.checkControlAccess(); |
| Flag flag = Flag.getFlag(name); |
| if (flag == null) { |
| throw new IllegalArgumentException("VM option \"" + |
| name + "\" does not exist"); |
| } |
| if (!flag.isWriteable()){ |
| throw new IllegalArgumentException("VM Option \"" + |
| name + "\" is not writeable"); |
| } |
| |
| // Check the type of the value |
| Object v = flag.getValue(); |
| if (v instanceof Long) { |
| try { |
| long l = Long.parseLong(value); |
| Flag.setLongValue(name, l); |
| } catch (NumberFormatException e) { |
| IllegalArgumentException iae = |
| new IllegalArgumentException("Invalid value:" + |
| " VM Option \"" + name + "\"" + |
| " expects numeric value"); |
| iae.initCause(e); |
| throw iae; |
| } |
| } else if (v instanceof Boolean) { |
| if (!value.equalsIgnoreCase("true") && |
| !value.equalsIgnoreCase("false")) { |
| throw new IllegalArgumentException("Invalid value:" + |
| " VM Option \"" + name + "\"" + |
| " expects \"true\" or \"false\"."); |
| } |
| Flag.setBooleanValue(name, Boolean.parseBoolean(value)); |
| } else if (v instanceof String) { |
| Flag.setStringValue(name, value); |
| } else { |
| throw new IllegalArgumentException("VM Option \"" + |
| name + "\" is of an unsupported type: " + |
| v.getClass().getName()); |
| } |
| } |
| |
| public ObjectName getObjectName() { |
| return Util.newObjectName("com.sun.management:type=HotSpotDiagnostic"); |
| } |
| } |