// OS.java // ------------------------------------------- // (C) by Michael Peter Christen; mc@yacy.net // first published on http://www.anomic.de // Frankfurt, Germany, 2004 // last major change: 11.03.2004 // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program 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 for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA package net.yacy.kelondro.util; import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.lang.management.ManagementFactory; import java.util.ArrayList; import java.util.List; import java.util.Properties; import java.util.Vector; import net.yacy.cora.document.UTF8; import net.yacy.kelondro.logging.Log; import de.anomic.server.serverCore; import java.util.*; public final class OS { // constants for system identification public enum System { MacOSC, // 'classic' Mac OS 7.6.1/8.*/9.* MacOSX, // all Mac OS X Unix, // all Unix/Linux type systems Windows, // all Windows 95/98/NT/2K/XP Unknown; // any other system } // constants for file type identification (Mac only) public static final String blankTypeString = "____"; // system-identification statics public static final System systemOS; public static final boolean isMacArchitecture; public static final boolean isUnixFS; public static final boolean canExecUnix; public static final boolean isWindows; public static final boolean isWin32; // calculated system constants public static int maxPathLength = 65535; // Macintosh-specific statics public static final Map macFSTypeCache = new HashMap(); public static final Map macFSCreatorCache = new HashMap(); // static initialization static { // check operation system type final Properties sysprop = java.lang.System.getProperties(); final String sysname = sysprop.getProperty("os.name","").toLowerCase(); if (sysname.startsWith("mac os x")) systemOS = System.MacOSX; else if (sysname.startsWith("mac os")) systemOS = System.MacOSC; else if (sysname.startsWith("windows")) systemOS = System.Windows; else if ((sysname.startsWith("linux")) || (sysname.startsWith("unix"))) systemOS = System.Unix; else systemOS = System.Unknown; isMacArchitecture = ((systemOS == System.MacOSC) || (systemOS == System.MacOSX)); isUnixFS = ((systemOS == System.MacOSX) || (systemOS == System.Unix)); canExecUnix = ((isUnixFS) || (!((systemOS == System.MacOSC) || (systemOS == System.Windows)))); isWindows = (systemOS == System.Windows); isWin32 = (isWindows && java.lang.System.getProperty("os.arch", "").contains("x86")); // set up maximum path length according to system if (isWindows) maxPathLength = 255; else maxPathLength = 65535; } /** * finds the maximum possible heap (may cause high system load) * @return heap in -Xmx[heap]m * @author [DW], 07.02.2009 */ public static int getWin32MaxHeap() { int maxmem = 1000; while(checkWin32Heap(maxmem)) maxmem += 100; while(!checkWin32Heap(maxmem)) maxmem -= 10; return maxmem; } /** * checks heap (may cause high system load) * @param mem heap to check in -Xmx[heap]m * @return true if possible * @author [DW], 07.02.2009 */ public static boolean checkWin32Heap(final int mem){ String line = ""; final List processArgs = new ArrayList(); processArgs.add("java"); processArgs.add("-Xms4m"); processArgs.add("-Xmx" + Integer.toString(mem) + "m"); try { line = ConsoleInterface.getLastLineConsoleOutput(processArgs, new Log("MEMCHECK")); } catch (final IOException e) { return false; } return (line.indexOf("space for object heap",0) > -1) ? false : true; } public static String infoString() { String s = "System="; if (systemOS == System.Unknown) s += "unknown"; else if (systemOS == System.MacOSC) s += "Mac OS Classic"; else if (systemOS == System.MacOSX) s += "Mac OS X"; else if (systemOS == System.Unix) s += "Unix/Linux"; else if (systemOS == System.Windows) s += "Windows"; else s += "unknown"; if (isMacArchitecture) s += ", Mac System Architecture"; if (isUnixFS) s += ", has Unix-like File System"; if (canExecUnix) s += ", can execute Unix-Shell Commands"; return s; } /** generates a 2-character string containing information about the OS-type*/ public static String infoKey() { String s = ""; if (systemOS == System.Unknown) s += "o"; else if (systemOS == System.MacOSC) s += "c"; else if (systemOS == System.MacOSX) s += "x"; else if (systemOS == System.Unix) s += "u"; else if (systemOS == System.Windows) s += "w"; else s += "o"; if (isMacArchitecture) s += "m"; if (isUnixFS) s += "f"; if (canExecUnix) s += "e"; return s; } public static void deployScript(final File scriptFile, final String theScript) throws IOException { FileUtils.copy(UTF8.getBytes(theScript), scriptFile); if(!isWindows){ // set executable try { Runtime.getRuntime().exec("chmod 755 " + scriptFile.getAbsolutePath().replaceAll(" ", "\\ ")).waitFor(); } catch (final InterruptedException e) { Log.logSevere("DEPLOY", "deploy of script file failed. file = " + scriptFile.getAbsolutePath(), e); throw new IOException(e.getMessage()); } } } /** * use a hack to get the current process PID * @return the PID of the current java process or -1 if the PID cannot be obtained */ public static int getPID() { final String pids = ManagementFactory.getRuntimeMXBean().getName(); final int p = pids.indexOf('@'); return p >= 0 ? Integer.parseInt(pids.substring(0, p)) : -1; } public static void execAsynchronous(final File scriptFile) throws IOException { // runs a script as separate thread String starterFileExtension = null; String script = null; if(isWindows){ starterFileExtension = ".starter.bat"; // use /K to debug, /C for release script = "start /MIN CMD /C \"" + scriptFile.getAbsolutePath() + "\""; } else { // unix/linux starterFileExtension = ".starter.sh"; script = "#!/bin/sh" + serverCore.LF_STRING + scriptFile.getAbsolutePath().replaceAll(" ", "\\ ") + " &" + serverCore.LF_STRING; } final File starterFile = new File(scriptFile.getAbsolutePath().replaceAll(" ", "\\ ") + starterFileExtension); deployScript(starterFile, script); try { Runtime.getRuntime().exec(starterFile.getAbsolutePath().replaceAll(" ", "\\ ")).waitFor(); } catch (final InterruptedException e) { throw new IOException(e.getMessage()); } FileUtils.deletedelete(starterFile); } public static Vector execSynchronous(final String command) throws IOException { // runs a unix/linux command and returns output as Vector of Strings // this method blocks until the command is executed final Process p = Runtime.getRuntime().exec(command); final BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream())); String text; final Vector output = new Vector(); while ((text = in.readLine()) != null) { output.add(text); } in.close(); return output; } public static void main(final String[] args) { if (args[0].equals("-m")) { java.lang.System.out.println("Maximum possible memory: " + Integer.toString(getWin32MaxHeap()) + "m"); } } } /* table of common system properties comparisment between different operation systems property |Mac OS 9.22 |Mac OSX 10.1.5 |Windows 98 |Linux Kernel 2.4.22 | -------------------+----------------------+----------------------+----------------------+----------------------+ file.encoding |MacTEC |MacRoman |Cp1252 |ANSI_X3.4-1968 | file.separator |/ |/ |\ |/ | java.class.path |/hdisc/... |. |. |/usr/lib/j2se/ext | java.class.version |45.3 |47.0 |48.0 |47.0 | java.home |/hdisc/... |/System/Library/... |C:\PROGRAM\... |/usr/lib/j2se/1.3/jre | java.vendor |Apple Computer, Inc. |Apple Computer, Inc. |Sun Microsystems Inc. |Blackdown Java-Linux | java.version |1.1.8 |1.3.1 |1.4.0_02 |1.3.1 | os.arch |PowerPC |ppc |x86 |i386 | os.name |Mac OS |Mac OS X |Windows 98 |Linux | os.version |9.2.2 |10.1.5 |4.10 |2.4.22 | path.separator |: |: |; |: | user.dir |/hdisc/... |/mydir/... |C:\mydir\... |/home/public | user.home |/hdisc/... |/Users/myself |C:\WINDOWS |/home/public | user.language |de |de |de |en | user.name |Bob |myself |User |public | user.timezone |ECT |Europe/Berlin |Europe/Berlin | | -------------------+----------------------+----------------------+----------------------+----------------------+ */ /* static struct browser possible_browsers[] = { {N_("Opera"), "opera"}, {N_("Netscape"), "netscape"}, {N_("Mozilla"), "mozilla"}, {N_("Konqueror"), "kfmclient"}, {N_("Galeon"), "galeon"}, {N_("Firebird"), "mozilla-firebird"}, {N_("Firefox"), "firefox"}, {N_("Gnome Default"), "gnome-open"} }; new: command = exec("netscape -remote " "\" openURL(\"%s\",new-window) "", uri); command = exec("opera -newwindow \"%s\"", uri); command = exec("opera -newpage \"%s\"", uri); command = exec("galeon -w \"%s\"", uri); command = exec("galeon -n \"%s\"", uri); command = exec("%s -remote \"openURL(\"%s\"," "new-window)\"", web_browser, uri); command = exec("%s -remote \"openURL(\"%s\"," "new-tab)\"", web_browser, uri); current: command = exec("netscape -remote " "\"openURL(\"%s\")\"", uri); command = exec("opera -remote " "\"openURL(\"%s\")\"", uri); command = exec("galeon \"%s\"", uri); command = exec("%s -remote \"openURL(\"%s\")\"", web_browser, uri); no option: command = exec("kfmclient openURL \"%s\"", uri); command = exec("gnome-open \"%s\"", uri); */