1 /*
2 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.servicetag;
27
28 // This class is a copy of the com.sun.scn.servicetags.LinuxSystemEnvironment
29 // class from the Sun Connection source.
30 //
31 // The Service Tags team maintains the latest version of the implementation
32 // for system environment data collection. JDK will include a copy of
33 // the most recent released version for a JDK release. We rename
34 // the package to com.sun.servicetag so that the Sun Connection
35 // product always uses the latest version from the com.sun.scn.servicetags
36 // package. JDK and users of the com.sun.servicetag API
37 // (e.g. NetBeans and SunStudio) will use the version in JDK.
38 //
39 // So we keep this class in src/share/classes instead of src/<os>/classes.
40
41 import java.io.*;
42
43 /**
44 * Linux implementation of the SystemEnvironment class.
45 */
46 class LinuxSystemEnvironment extends SystemEnvironment {
47 LinuxSystemEnvironment() {
48 setHostId(getLinuxHostId());
49 setSystemModel(getCommandOutput("/bin/uname", "-i"));
50 setSystemManufacturer(getLinuxSystemManufacturer());
51 setCpuManufacturer(getLinuxCpuManufacturer());
52 setSerialNumber(getLinuxSN());
53 }
54 private String dmiInfo = null;
55
56 private static final int SN = 1;
57 private static final int SYS = 2;
58 private static final int CPU = 3;
59
60 private String getLinuxHostId() {
61 String output = getCommandOutput("/usr/bin/hostid");
62 // trim off the leading 0x
63 if (output.startsWith("0x")) {
64 output = output.substring(2);
65 }
66 return output;
67 }
68
69 /**
70 * Tries to obtain and return the cpu manufacturer.
71 * @return The cpu manufacturer (an empty string if not found or an error occurred)
72 */
73 private String getLinuxCpuManufacturer() {
74 String tmp = getLinuxPSNInfo(CPU);
75 if (tmp.length() > 0) {
76 return tmp;
77 }
78
79 String contents = getFileContent("/proc/cpuinfo");
80 for (String line : contents.split("\n")) {
81 if (line.contains("vendor_id")) {
82 String[] ss = line.split(":", 2);
83 if (ss.length > 1) {
84 return ss[1].trim();
85 }
86 }
87 }
88
89 // returns an empty string if it can't be found or an error happened
90 return getLinuxDMIInfo("dmi type 4", "manufacturer");
91 }
92
93
94 /**
95 * Tries to obtain and return the system manufacturer.
96 * @return The system manufacturer (an empty string if not found or an error occurred)
97 */
98 private String getLinuxSystemManufacturer() {
99 String tmp = getLinuxPSNInfo(SYS);
100 if (tmp.length() > 0) {
101 return tmp;
102 }
103
104 // returns an empty string if it can't be found or an error happened
105 return getLinuxDMIInfo("dmi type 1", "manufacturer");
106 }
107
108 /**
109 * Tries to obtain and return the serial number of the system.
110 * @return The serial number (an empty string if not found or an error occurred)
111 */
112 private String getLinuxSN() {
113 String tmp = getLinuxPSNInfo(SN);
114 if (tmp.length() > 0) {
115 return tmp;
116 }
117
118 // returns an empty string if it can't be found or an error happened
119 return getLinuxDMIInfo("dmi type 1", "serial number");
120 }
121
122 private String getLinuxPSNInfo(int target) {
123 // try to read from the psn file if it exists
124 String contents = getFileContent("/var/run/psn");
125 String[] ss = contents.split("\n");
126 if (target <= ss.length) {
127 return ss[target-1];
128 }
129
130 // default case is to return ""
131 return "";
132 }
133
134 // reads from dmidecode with the given type and target
135 // returns an empty string if nothing was found or an error occurred
136 //
137 // Sample output segment:
138 // Handle 0x0001
139 // DMI type 1, 25 bytes.
140 // System Information
141 // Manufacturer: System manufacturer
142 // Product Name: System Product Name
143 // Version: System Version
144 // Serial Number: System Serial Number
145 // UUID: 3091D719-B25B-D911-959D-6D1B12C7686E
146 // Wake-up Type: Power Switch
147
148 private synchronized String getLinuxDMIInfo(String dmiType, String target) {
149 // only try to get dmidecode information once, after that, we can
150 // reuse the output
151 if (dmiInfo == null) {
152 Thread dmidecodeThread = new Thread() {
153 public void run() {
154 dmiInfo = getCommandOutput("/usr/sbin/dmidecode");
155 }
156 };
157 dmidecodeThread.start();
158
159 try {
160 dmidecodeThread.join(2000);
161 if (dmidecodeThread.isAlive()) {
162 dmidecodeThread.interrupt();
163 dmiInfo = "";
164 }
165 } catch (InterruptedException ie) {
166 dmidecodeThread.interrupt();
167 }
168 }
169
170 if (dmiInfo.length() == 0) {
171 return "";
172 }
173 boolean dmiFlag = false;
174 for (String s : dmiInfo.split("\n")) {
175 String line = s.toLowerCase();
176 if (dmiFlag) {
177 if (line.contains(target)) {
178 String key = target + ":";
179 int indx = line.indexOf(key) + key.length();
180 if (line.contains(key) && indx < line.length()) {
181 return line.substring(indx).trim();
182 }
183 String[] ss = line.split(":");
184 return ss[ss.length-1];
185 }
186 } else if (line.contains(dmiType)) {
187 dmiFlag = true;
188 }
189 }
190 return "";
191 }
192
193 }