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/*
* Copyright 2004 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.
*
* 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.jvm.hotspot.tools;
import sun.jvm.hotspot.runtime.*;
public class JInfo extends Tool {
public JInfo(int m) {
mode = m;
}
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.start(args);
jinfo.stop();
}
private void printVMFlags() {
String str = Arguments.getJVMFlags();
if (str != null) {
System.out.println(str);
}
str = Arguments.getJVMArgs();
if (str != null) {
System.out.println(str);
}
}
private int mode;
}
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