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Diffstat (limited to 'src/share/classes/com/sun/servicetag/Util.java')
| -rw-r--r-- | src/share/classes/com/sun/servicetag/Util.java | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/servicetag/Util.java b/src/share/classes/com/sun/servicetag/Util.java new file mode 100644 index 000000000..9e32111a2 --- /dev/null +++ b/src/share/classes/com/sun/servicetag/Util.java @@ -0,0 +1,336 @@ +/* + * Copyright 2008 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. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun 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 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 com.sun.servicetag; + +import java.io.*; +import java.util.Date; +import java.text.SimpleDateFormat; +import java.text.ParseException; +import java.util.TimeZone; +import java.util.UUID; +import java.lang.reflect.Field; +import java.lang.reflect.Method; + +// Utility class for com.sun.servicetag package +class Util { + private static boolean verbose = (System.getProperty("servicetag.verbose") != null); + private static String jrepath = null; + private static final String REGKEY_TAIL = + "microsoft\\windows\\currentversion\\app paths\\stclient.exe"; + private static final String STCLIENT_TAIL = "sun\\servicetag\\stclient.exe"; + private static final String WIN32_STCLIENT = + "c:\\Program Files (x86)\\" + STCLIENT_TAIL; + + // for debugging and tracing + static boolean isVerbose() { + return verbose; + } + + /** + * Gets the pathname of JRE in the running platform + * This can be a JDK or JRE. + */ + static synchronized String getJrePath() { + if (jrepath == null) { + // Determine the JRE path by checking the existence of + // <HOME>/jre/lib and <HOME>/lib. + String javaHome = System.getProperty("java.home"); + jrepath = javaHome + File.separator + "jre"; + File f = new File(jrepath, "lib"); + if (!f.exists()) { + // java.home usually points to the JRE path + jrepath = javaHome; + } + } + return jrepath; + } + + /** + * Tests if the running platform is a JDK. + */ + static boolean isJdk() { + // <HOME>/jre exists which implies it's a JDK + return getJrePath().endsWith(File.separator + "jre"); + } + + /** + * Generates the URN string of "urn:st" namespace + */ + static String generateURN() { + return "urn:st:" + UUID.randomUUID().toString(); + } + + static int getIntValue(String value) { + try { + return Integer.parseInt(value); + } catch (NumberFormatException e) { + throw new IllegalArgumentException("\"" + value + "\"" + + " expected to be an integer"); + } + } + + /** + * Formats the Date into a timestamp string in YYYY-MM-dd HH:mm:ss GMT. + * @param timestamp Date + * @return a string representation of the timestamp + * in the YYYY-MM-dd HH:mm:ss GMT format. + */ + static String formatTimestamp(Date timestamp) { + if (timestamp == null) { + return "[No timestamp]"; + } + SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); + df.setTimeZone(TimeZone.getTimeZone("GMT")); + return df.format(timestamp); + } + + /** + * Parses a timestamp string in YYYY-MM-dd HH:mm:ss GMT format. + * @param timestamp Timestamp in the YYYY-MM-dd HH:mm:ss GMT format. + * @return Date + */ + static Date parseTimestamp(String timestamp) { + SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); + df.setTimeZone(TimeZone.getTimeZone("GMT")); + try { + return df.parse(timestamp); + } catch (ParseException e) { + // should not reach here + e.printStackTrace(); + return new Date(); + } + } + + static String commandOutput(Process p) throws IOException { + Reader r = null; + Reader err = null; + try { + r = new InputStreamReader(p.getInputStream()); + err = new InputStreamReader(p.getErrorStream()); + String output = commandOutput(r); + String errorMsg = commandOutput(err); + p.waitFor(); + return output + errorMsg.trim(); + } catch (InterruptedException e) { + if (isVerbose()) { + e.printStackTrace(); + } + return e.getMessage(); + } finally { + if (r != null) { + r.close(); + } + if (err != null) { + err.close(); + } + } + } + + static String commandOutput(Reader r) throws IOException { + StringBuilder sb = new StringBuilder(); + int c; + while ((c = r.read()) > 0) { + if (c != '\r') { + sb.append((char) c); + } + } + return sb.toString(); + } + + static int getJdkVersion() { + parseVersion(); + return jdkVersion; + } + + static int getUpdateVersion() { + parseVersion(); + return jdkUpdate; + } + + private static int jdkVersion = 0; + private static int jdkUpdate = 0; + private static synchronized void parseVersion() { + if (jdkVersion > 0) { + return; + } + + // parse java.runtime.version + // valid format of the version string is: + // n.n.n[_uu[c]][-<identifer>]-bxx + String cs = System.getProperty("java.runtime.version"); + if (cs.length() >= 5 && + Character.isDigit(cs.charAt(0)) && cs.charAt(1) == '.' && + Character.isDigit(cs.charAt(2)) && cs.charAt(3) == '.' && + Character.isDigit(cs.charAt(4))) { + jdkVersion = Character.digit(cs.charAt(2), 10); + cs = cs.substring(5, cs.length()); + if (cs.charAt(0) == '_' && cs.length() >= 3 && + Character.isDigit(cs.charAt(1)) && + Character.isDigit(cs.charAt(2))) { + int nextChar = 3; + try { + String uu = cs.substring(1, 3); + jdkUpdate = Integer.valueOf(uu).intValue(); + } catch (NumberFormatException e) { + // not conforming to the naming convention + return; + } + } + } else { + throw new InternalError("Invalid java.runtime.version" + cs); + } + } + + /** + * Returns this java string as a null-terminated byte array + */ + private static byte[] stringToByteArray(String str) { + return (str + "\u0000").getBytes(); + } + + /** + * Converts a null-terminated byte array to java string + */ + private static String byteArrayToString(byte[] array) { + return new String(array, 0, array.length -1); + } + + /** + * Gets the stclient path using a well known location from + * the Windows platform Registry, ensuring the path returned + * by the registry is really the one we are looking for, + * otherwise it will return null. + */ + private static File getWindowsStClientFile(boolean wow64) { + File out = null; + String regKey = (wow64 == true) + ? "software\\Wow6432Node\\" + REGKEY_TAIL + : "software\\" + REGKEY_TAIL; + String keyName = "" ; // use the default key + String path = getRegistryKey(regKey, keyName); + if (path != null + && (new File(path)).exists() + && path.toLowerCase().endsWith(STCLIENT_TAIL.toLowerCase())) { + out = new File(path); + } + if (isVerbose()) { + System.out.println("stclient=" + out); + } + return out; + } + + /** + * Finds a stclient in 32 and 64 bit environments, first by querying + * the windows registry, if not then get the well known paths for + * 64bit see http://support.microsoft.com/kb/896459 + */ + + static File getWindowsStClientFile() { + File stclient = null; + if (System.getProperty("os.arch").equals("x86")) { + // try to get the default entry + stclient = getWindowsStClientFile(false); + if (stclient != null) { + return stclient; + } + } else { // we are on 64-bit system + // try the wow64 area + stclient = getWindowsStClientFile(true); + if (stclient != null) { + return stclient; + } + // try the default hard coded path, maybe wow64 registry is missing + stclient = new File(WIN32_STCLIENT); + if (stclient.canExecute()) { + if (isVerbose()) { + System.out.println("stclient(default)=" + stclient); + } + return stclient; + } + } + if (isVerbose()) { + System.out.println("stclient not found"); + } + return null; + } + + /** + * This uses reflection to access a private java windows registry + * interface, any changes to that Class must be appropriately adjusted. + * Returns a null if unsuccessful. + */ + private static String getRegistryKey(String regKey, String keyName) { + String out = null; + try { + Class<?> clazz = Class.forName("java.util.prefs.WindowsPreferences"); + + // Get the registry methods + Method winRegOpenKeyM = clazz.getDeclaredMethod("WindowsRegOpenKey", + int.class, byte[].class, int.class); + winRegOpenKeyM.setAccessible(true); + + Method winRegCloseKeyM = clazz.getDeclaredMethod("WindowsRegCloseKey", + int.class); + winRegCloseKeyM.setAccessible(true); + + Method winRegQueryValueM = clazz.getDeclaredMethod("WindowsRegQueryValueEx", + int.class, byte[].class); + winRegQueryValueM.setAccessible(true); + + // Get all the constants we need + int HKLM = getValueFromStaticField("HKEY_LOCAL_MACHINE", clazz); + int KEY_READ = getValueFromStaticField("KEY_READ", clazz); + int ERROR_CODE = getValueFromStaticField("ERROR_CODE", clazz); + int NATIVE_HANDLE = getValueFromStaticField("NATIVE_HANDLE", clazz); + int ERROR_SUCCESS = getValueFromStaticField("ERROR_SUCCESS", clazz); + + // Convert keys + byte[] reg = stringToByteArray(regKey); + byte[] key = stringToByteArray(keyName); + + // Open the registry + int[] result = (int[]) winRegOpenKeyM.invoke(null, HKLM, reg, KEY_READ); + + if (result[ERROR_CODE] == ERROR_SUCCESS) { + byte[] stvalue = (byte[]) winRegQueryValueM.invoke(null, + result[NATIVE_HANDLE], key); + out = byteArrayToString(stvalue); + winRegCloseKeyM.invoke(null, result[NATIVE_HANDLE]); + } + } catch (Exception ex) { + if (isVerbose()) { + ex.printStackTrace(); + } + } + return out; + } + + private static int getValueFromStaticField(String fldName, Class<?> klass) throws Exception { + Field f = klass.getDeclaredField(fldName); + f.setAccessible(true); + return f.getInt(null); + } +} |