| /* |
| * Copyright (c) 2004, 2013, 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. |
| * |
| * 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.jvm.hotspot.tools; |
| |
| import sun.jvm.hotspot.debugger.JVMDebugger; |
| import sun.jvm.hotspot.runtime.Arguments; |
| import sun.jvm.hotspot.runtime.VM; |
| |
| public class JInfo extends Tool { |
| public JInfo() { |
| super(); |
| } |
| |
| public JInfo(int m) { |
| mode = m; |
| } |
| |
| public JInfo(JVMDebugger d) { |
| super(d); |
| } |
| |
| protected boolean needsJavaPrefix() { |
| return false; |
| } |
| |
| public String getName() { |
| return "jinfo"; |
| } |
| |
| protected void printFlagsUsage() { |
| System.out.println(" -flags\tto print VM flags"); |
| System.out.println(" -sysprops\tto print Java System properties"); |
| System.out.println(" <no option>\tto print both of the above"); |
| super.printFlagsUsage(); |
| } |
| |
| public static final int MODE_FLAGS = 0; |
| public static final int MODE_SYSPROPS = 1; |
| public static final int MODE_BOTH = 2; |
| |
| public void run() { |
| Tool tool = null; |
| switch (mode) { |
| case MODE_FLAGS: |
| printVMFlags(); |
| return; |
| case MODE_SYSPROPS: |
| tool = new SysPropsDumper(); |
| break; |
| case MODE_BOTH: { |
| tool = new Tool() { |
| public void run() { |
| Tool sysProps = new SysPropsDumper(); |
| sysProps.setAgent(getAgent()); |
| System.out.println("Java System Properties:"); |
| System.out.println(); |
| sysProps.run(); |
| System.out.println(); |
| System.out.println("VM Flags:"); |
| printVMFlags(); |
| System.out.println(); |
| } |
| }; |
| } |
| break; |
| |
| default: |
| usage(); |
| break; |
| } |
| tool.setAgent(getAgent()); |
| tool.run(); |
| } |
| |
| public static void main(String[] args) { |
| int mode = -1; |
| switch (args.length) { |
| case 1: |
| if (args[0].charAt(0) == '-') { |
| // -h or -help or some invalid flag |
| new JInfo(mode).usage(); |
| } else { |
| mode = MODE_BOTH; |
| } |
| break; |
| case 2: |
| case 3: { |
| String modeFlag = args[0]; |
| if (modeFlag.equals("-flags")) { |
| mode = MODE_FLAGS; |
| } else if (modeFlag.equals("-sysprops")) { |
| mode = MODE_SYSPROPS; |
| } else if (modeFlag.charAt(0) == '-') { |
| // -h or -help or some invalid flag |
| new JInfo(mode).usage(); |
| } else { |
| mode = MODE_BOTH; |
| } |
| |
| if (mode != MODE_BOTH) { |
| // we have to consume first flag argument. |
| String[] newArgs = new String[args.length - 1]; |
| for (int i = 0; i < newArgs.length; i++) { |
| newArgs[i] = args[i + 1]; |
| } |
| args = newArgs; |
| } |
| break; |
| } |
| |
| default: |
| new JInfo(mode).usage(); |
| } |
| |
| JInfo jinfo = new JInfo(mode); |
| jinfo.execute(args); |
| } |
| |
| private void printVMFlags() { |
| VM.Flag[] flags = VM.getVM().getCommandLineFlags(); |
| System.out.print("Non-default VM flags: "); |
| for (VM.Flag flag : flags) { |
| if (flag.getOrigin() == 0) { |
| // only print flags which aren't their defaults |
| continue; |
| } |
| if (flag.isBool()) { |
| String onoff = flag.getBool() ? "+" : "-"; |
| System.out.print("-XX:" + onoff + flag.getName() + " "); |
| } else { |
| System.out.print("-XX:" + flag.getName() + "=" |
| + flag.getValue() + " "); |
| } |
| } |
| System.out.println(); |
| |
| System.out.print("Command line: "); |
| String str = Arguments.getJVMFlags(); |
| if (str != null) { |
| System.out.print(str + " "); |
| } |
| str = Arguments.getJVMArgs(); |
| if (str != null) { |
| System.out.print(str); |
| } |
| System.out.println(); |
| } |
| |
| private int mode; |
| } |