/*
* Copyright (c) 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 com.sun.servicetag;
// This class is a copy of the com.sun.scn.servicetags.LinuxSystemEnvironment
// class from the Sun Connection source.
//
// The Service Tags team maintains the latest version of the implementation
// for system environment data collection. JDK will include a copy of
// the most recent released version for a JDK release. We rename
// the package to com.sun.servicetag so that the Sun Connection
// product always uses the latest version from the com.sun.scn.servicetags
// package. JDK and users of the com.sun.servicetag API
// (e.g. NetBeans and SunStudio) will use the version in JDK.
//
// So we keep this class in src/share/classes instead of src/<os>/classes.
import java.io.*;
/**
* Linux implementation of the SystemEnvironment class.
*/
class LinuxSystemEnvironment extends SystemEnvironment {
LinuxSystemEnvironment() {
setHostId(getLinuxHostId());
setSystemModel(getCommandOutput("/bin/uname", "-i"));
setSystemManufacturer(getLinuxSystemManufacturer());
setCpuManufacturer(getLinuxCpuManufacturer());
setSerialNumber(getLinuxSN());
}
private String dmiInfo = null;
private static final int SN = 1;
private static final int SYS = 2;
private static final int CPU = 3;
private String getLinuxHostId() {
String output = getCommandOutput("/usr/bin/hostid");
// trim off the leading 0x
if (output.startsWith("0x")) {
output = output.substring(2);
}
return output;
}
/**
* Tries to obtain and return the cpu manufacturer.
* @return The cpu manufacturer (an empty string if not found or an error occurred)
*/
private String getLinuxCpuManufacturer() {
String tmp = getLinuxPSNInfo(CPU);
if (tmp.length() > 0) {
return tmp;
}
String contents = getFileContent("/proc/cpuinfo");
for (String line : contents.split("\n")) {
if (line.contains("vendor_id")) {
String[] ss = line.split(":", 2);
if (ss.length > 1) {
return ss[1].trim();
}
}
}
// returns an empty string if it can't be found or an error happened
return getLinuxDMIInfo("dmi type 4", "manufacturer");
}
/**
* Tries to obtain and return the system manufacturer.
* @return The system manufacturer (an empty string if not found or an error occurred)
*/
private String getLinuxSystemManufacturer() {
String tmp = getLinuxPSNInfo(SYS);
if (tmp.length() > 0) {
return tmp;
}
// returns an empty string if it can't be found or an error happened
return getLinuxDMIInfo("dmi type 1", "manufacturer");
}
/**
* Tries to obtain and return the serial number of the system.
* @return The serial number (an empty string if not found or an error occurred)
*/
private String getLinuxSN() {
String tmp = getLinuxPSNInfo(SN);
if (tmp.length() > 0) {
return tmp;
}
// returns an empty string if it can't be found or an error happened
return getLinuxDMIInfo("dmi type 1", "serial number");
}
private String getLinuxPSNInfo(int target) {
// try to read from the psn file if it exists
String contents = getFileContent("/var/run/psn");
String[] ss = contents.split("\n");
if (target <= ss.length) {
return ss[target-1];
}
// default case is to return ""
return "";
}
// reads from dmidecode with the given type and target
// returns an empty string if nothing was found or an error occurred
//
// Sample output segment:
// Handle 0x0001
// DMI type 1, 25 bytes.
// System Information
// Manufacturer: System manufacturer
// Product Name: System Product Name
// Version: System Version
// Serial Number: System Serial Number
// UUID: 3091D719-B25B-D911-959D-6D1B12C7686E
// Wake-up Type: Power Switch
private synchronized String getLinuxDMIInfo(String dmiType, String target) {
// only try to get dmidecode information once, after that, we can
// reuse the output
if (dmiInfo == null) {
Thread dmidecodeThread = new Thread() {
public void run() {
dmiInfo = getCommandOutput("/usr/sbin/dmidecode");
}
};
dmidecodeThread.start();
try {
dmidecodeThread.join(2000);
if (dmidecodeThread.isAlive()) {
dmidecodeThread.interrupt();
dmiInfo = "";
}
} catch (InterruptedException ie) {
dmidecodeThread.interrupt();
}
}
if (dmiInfo.length() == 0) {
return "";
}
boolean dmiFlag = false;
for (String s : dmiInfo.split("\n")) {
String line = s.toLowerCase();
if (dmiFlag) {
if (line.contains(target)) {
String key = target + ":";
int indx = line.indexOf(key) + key.length();
if (line.contains(key) && indx < line.length()) {
return line.substring(indx).trim();
}
String[] ss = line.split(":");
return ss[ss.length-1];
}
} else if (line.contains(dmiType)) {
dmiFlag = true;
}
}
return "";
}
}