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yacy_search_server/source/de/anomic/tools/diskUsage.java

526 lines
18 KiB

// diskUsage.java
// -----------------------
// part of YaCy
// (C) by Detlef Reichl; detlef!reichl()gmx!org
// Pforzheim, Germany, 2008
//
// 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
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
// The HashMap contains the following values:
//
// key = the device name e.g. /dev/hda1, on windows the drive e.g. c:
// value[0] = the total space of the volume, on windows not used
// value[1] = the free space of the volume
package de.anomic.tools;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import de.anomic.plasma.plasmaSwitchboard;
// FIXME entfernen
import de.anomic.server.logging.serverLog;
public class diskUsage {
// FIXME entfernen
serverLog log = new serverLog("DISK USAGE");
private static final HashMap<String, long[]> diskUsages = new HashMap<String, long[]>();
private static final ArrayList<String> allVolumes = new ArrayList<String>();
private static final ArrayList<String> allMountPoints = new ArrayList<String>();
private static final ArrayList<Boolean> usedVolumes = new ArrayList<Boolean>();
private static final ArrayList<String> yacyUsedVolumes = new ArrayList<String>();
private static final ArrayList<String> yacyUsedMountPoints = new ArrayList<String>();
private static plasmaSwitchboard sb;
private static int usedOS;
private static boolean usable;
private static String windowsCommand;
private static String errorMessage;
private static boolean consoleError;
// Unix-like
private final int AIX = 0; // IBM
private final int BS2000 = 1; // Fujitsu Siemens (oficial BS2000/OSD)
private final int BSD = 2; // all kind of BSD
private final int HAIKU = 3; // like BeOS; does not have a JRE til now, but they are working on it
private final int HP_UX = 4; // Hewlett-Packard
private final int TRU64 = 5; // Hewlett-Packard
private final int IRIX = 6; // sgi
private final int LINUX = 7; // all kind of linux
private final int MAC_OS_X = 8; // Apple
private final int MINIX = 9; // don't know if there even is a JRE for minix...
private final int SOLARIS = 10; // SUN The latest SunOS version is from 1990 and that is much
// older as Java 1.5. So we can ignore it.
private final int UNICOS = 11; // cray
private final int UNIX_END = UNICOS;
// Windows dos based
private final int WINDOWS_95 = 12;
private final int WINDOWS_98 = 13;
private final int WINDOWS_ME = 14;
// Windows WinNT based
private final int WINDOWS_NT = 15;
private final int WINDOWS_2000 = 16;
private final int WINDOWS_XP = 17;
private final int WINDOWS_SERVER = 18;
private final int WINDOWS_VISTA = 19;
String[] OSname = {"aix", "bs2000", "bsd", "haiku", "hp-ux", "tru64", "irix", "linux", "mac os x", "minix",
"solaris", "unicos",
"windows 95", "windows 98", "windows me",
"windows nt", "windows 2000", "windows xp", "windows server", "windows vista"};
//////////////////
// public API //
//////////////////
public diskUsage (plasmaSwitchboard sb) {
errorMessage = null;
diskUsage.sb = sb;
usedOS = getOS();
if (usedOS == -1) {
usable = false;
} else {
usable = true;
// some kind of *nix
if (usedOS <= UNIX_END) {
dfUnix (true);
for (int i = 0; i < allMountPoints.size(); i++)
usedVolumes.add(false);
checkVolumesInUseUnix ("DATA");
checkMapedSubDirs ();
for (int i = 0; i < allVolumes.size(); i++){
if (usedVolumes.get(i) == true) {
yacyUsedVolumes.add(allVolumes.get (i));
yacyUsedMountPoints.add(allMountPoints.get (i));
}
}
// all Windows version
} else {
checkWindowsCommandVersion();
getAllVolumesWindows ();
for (int i = 0; i < allVolumes.size(); i++)
usedVolumes.add(false);
checkStartVolume();
checkMapedSubDirs ();
for (int i = 0; i < allVolumes.size(); i++){
if (usedVolumes.get(i) == true)
yacyUsedVolumes.add(allVolumes.get (i));
}
}
if (yacyUsedVolumes.size() < 1)
usable = false;
}
}
public HashMap<String, long[]> getDiskUsage () {
if (!usable)
return null;
if (usedOS <= UNIX_END)
dfUnix(false);
else
dfWindows ();
return diskUsages;
}
public boolean getUsable () {
return usable;
}
public String getErrorMessage () {
return errorMessage;
}
public int getNumUsedVolumes () {
return yacyUsedVolumes.size();
}
////////////
// Unix //
////////////
private void dfUnix(boolean getVolumesOnly) {
if (!getVolumesOnly)
diskUsages.clear ();
// -k set blocksize to 1024
// confirmed with tests:
// Linux
// verified with man pages or other docs:
// AIX, BS2000, *BSD, HP-UX, IRIX, minix, Mac OS X, Solaris, Tru64, UNICOS
// -l list local filesystems only
// confirmed with tests:
// Linux
// verified with man pages or other docs:
// AIX, BS2000, *BSD, HP-UX, IRIX, minix, Mac OS X, Solaris, UNICOS
// please report all successes or fails for non-confirmed systems to
// detlef!reichl()gmx!org. Thanks!
ArrayList<String> processArgs = new ArrayList<String>();
processArgs.add("df");
processArgs.add("-k");
// Some systems need the additional -P parameter to return the data in Posix format.
// Without it the mount point will be in the 7th and not in the 6th column
if (usedOS == AIX || usedOS == BS2000 || usedOS == MINIX || usedOS == UNICOS)
processArgs.add("-P");
// Tru64 does not know the -l parameter
// For haiku i didn't found online docs at all; so better exclude it
if (usedOS != TRU64 && usedOS != HAIKU)
processArgs.add("-l");
ArrayList<String> lines = getConsoleOutput(processArgs);
if (consoleError) {
errorMessage = "df:";
Iterator<String> iter = lines.iterator();
while (iter.hasNext()){
errorMessage += "\n" + iter.next();
usable = false;
return;
}
}
Iterator<String> iter = lines.iterator();
while (iter.hasNext()){
String line = iter.next();
if (! line.startsWith ("/"))
continue;
String[] tokens = line.split(" ++", 6);
if (tokens.length < 6)
continue;
nextLine:
if (getVolumesOnly) {
for (int i = 0; i < allMountPoints.size(); i++) {
if (tokens[5].trim().compareTo(allMountPoints.get(i)) > 0) {
allMountPoints.add(i, tokens[5].trim());
allVolumes.add(i, tokens[0]);
break nextLine;
}
}
allMountPoints.add(allMountPoints.size(), tokens[5]);
allVolumes.add(allVolumes.size(), tokens[0]);
} else {
for (int i = 0; i < yacyUsedVolumes.size(); i++){
if (yacyUsedVolumes.get(i).equals(tokens[0])) {
long[] vals = new long[2];
try { vals[0] = new Long(tokens[1]); } catch (NumberFormatException e) { break nextLine; }
try { vals[1] = new Long(tokens[3]); } catch (NumberFormatException e) { break nextLine; }
vals[0] *= 1024;
vals[1] *= 1024;
diskUsages.put (yacyUsedMountPoints.get(i), vals);
}
}
}
}
}
private void checkVolumesInUseUnix (String path) {
File file = new File(path);
File[] fileList = file.listFiles();
String base;
String dir;
for (int i = 0; i < fileList.length; i++) {
// ATTENTION! THIS LOOP NEEDS A TIME-OUT
if (fileList[i].isDirectory()) {
try {
dir = fileList[i].getCanonicalPath();
} catch (IOException e) {
usable = false;
break;
}
if (!dir.endsWith ("HTCACHE")
&& !dir.endsWith ("LOCALE")
&& !dir.endsWith ("RANKING")
&& !dir.endsWith ("RELEASE")
&& !dir.endsWith ("collection.0028.commons")) {
checkVolumesInUseUnix (dir);
} else {
checkPathUsage (dir);
}
} else {
try {
base = fileList[i].getCanonicalPath();
} catch (IOException e) {
usable = false;
break;
}
checkPathUsage (base);
}
}
}
///////////////
// Windows //
///////////////
private void checkWindowsCommandVersion () {
windowsCommand = null;
String os = System.getProperty("os.name").toLowerCase();
String[] oses = {"windows 95", "windows 98", "windows me"};
for (int i = 0; i < oses.length; i++)
{
if (os.indexOf(oses[i]) >= 0){
windowsCommand = "command.com";
break;
}
}
if (windowsCommand == null)
windowsCommand = "cmd.exe";
}
private String dfWindowsGetConsoleOutput (String device) {
ArrayList<String> processArgs = new ArrayList<String>();
processArgs.add(windowsCommand);
processArgs.add("/c");
processArgs.add("dir");
processArgs.add(device);
ProcessBuilder processBuilder = new ProcessBuilder(processArgs);
Process process;
try {
process = processBuilder.start();
} catch (IOException e) {return null;}
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
String lastLine = null;
while (true) {
try {
line = bufferedReader.readLine ();
} catch (IOException e) { return null; }
if (line == null)
break;
if (line.trim().length() > 0)
lastLine = line;
}
return lastLine;
}
private void getAllVolumesWindows () {
for (char c = 'C'; c <= 'Z'; c++) { // A and B are reserved for floppy on Windows
String dirName = c + ":\\";
if (dfWindowsGetConsoleOutput (dirName) != null) {
allVolumes.add(String.valueOf(c));
}
}
}
private void checkStartVolume() {
File file = new File("DATA");
String path = null;
try { path = file.getCanonicalPath().toString(); } catch (IOException e) {
errorMessage = "Cant get DATA directory";
usable = false;
return;
}
if (path.length() < 6)
return;
int index = -1;
try { index = allVolumes.indexOf(path.substring(0, 1)); } catch (IndexOutOfBoundsException e) {
errorMessage = "Start volume not found in all volumes";
usable = false;
return;
}
if (index > -1)
usedVolumes.set(index, true);
else {
errorMessage = "No start volume found";
usable = false;
}
}
public void dfWindows () {
for (int i = 0; i < yacyUsedVolumes.size(); i++){
// in yacyUsedMountPoints aendern
String line = dfWindowsGetConsoleOutput(yacyUsedVolumes.get(i) + ":\\");
String[] tokens = line.trim().split(" ++");
long[] vals = new long[2];
vals[0] = -1;
try { vals[1] = new Long(tokens[2].replaceAll("[.,]", "")); } catch (NumberFormatException e) {continue;}
diskUsages.put (yacyUsedVolumes.get(i), vals);
}
}
/////////////
// common //
/////////////
private int getOS () {
String os = System.getProperty("os.name").toLowerCase();
for (int i = 0; i < OSname.length; i++)
{
if (os.indexOf(OSname[i]) >= 0)
return i;
}
errorMessage = "unknown operating system (" + System.getProperty("os.name") + ")";
return -1;
}
private void checkMapedSubDirs () {
// FIXME whats about the secondary path???
// = (getConfig(plasmaSwitchboard.INDEX_SECONDARY_PATH, "");
String[] pathes = {plasmaSwitchboard.HTDOCS_PATH,
plasmaSwitchboard.INDEX_PRIMARY_PATH,
plasmaSwitchboard.LISTS_PATH,
plasmaSwitchboard.PLASMA_PATH,
plasmaSwitchboard.RANKING_PATH,
plasmaSwitchboard.WORK_PATH};
for (int i = 0; i < pathes.length; i++) {
String path = null;
try {
path = sb.getConfigPath(pathes[i], "").getCanonicalPath().toString();
} catch (IOException e) { continue; }
if (path.length() > 0)
checkPathUsage (path);
}
}
private void checkPathUsage (String path) {
for (int i = 0; i < allMountPoints.size(); i++){
if (path.startsWith (allMountPoints.get(i))) {
usedVolumes.set(i, true);
return;
}
}
}
private ArrayList<String> getConsoleOutput (ArrayList<String> processArgs) {
ArrayList<String> list = new ArrayList<String>();
ProcessBuilder processBuilder = new ProcessBuilder(processArgs);
Process process = null;
consoleInterface inputStream = null;
consoleInterface errorStream = null;
consoleError = false;
try {
process = processBuilder.start();
inputStream = new consoleInterface(process.getInputStream());
errorStream = new consoleInterface(process.getErrorStream());
inputStream.start();
errorStream.start();
/*int retval =*/ process.waitFor();
} catch(IOException iox) {
consoleError = true;
log.logWarning("logpoint 0 " + iox.getMessage());
list.add(iox.getMessage());
return list;
} catch(InterruptedException ix) {
consoleError = true;
log.logWarning("logpoint 1 " + ix.getMessage());
list.add(ix.getMessage());
return list;
}
list = inputStream.getOutput();
if (list.isEmpty()) {
consoleError = true;
log.logWarning("logpoint 2 ");
return errorStream.getOutput();
} else
return list;
}
public class consoleInterface extends Thread
{
private InputStream stream;
private boolean getInputStream;
private ArrayList<String> output;
public consoleInterface (InputStream stream)
{
this.stream = stream;
output = new ArrayList<String>();
}
public void run() {
try {
InputStreamReader input = new InputStreamReader(stream);
BufferedReader buffer = new BufferedReader(input);
String line = null;
int tries = 1000;
while (tries-- > 0) {
if (buffer.ready())
break;
}
log.logInfo("logpoint 3 " + tries + " tries");
while((line = buffer.readLine()) != null) {
output.add(line);
}
} catch(IOException ix) { log.logWarning("logpoint 4 " + ix.getMessage());}
}
public ArrayList<String> getOutput(){
return output;
}
}
}