/**
* Copy file as stream for unpacking from jar.
*
* @param className class name for given resource
* @param inFile input file, path in the jar
* @param outFile output file
* @return true if it worked
*/
public static boolean copyFileFromJar(
final String className, final String inFile, final File outFile) {
try {
Class<?> thisClass = Class.forName(className);
InputStream is = thisClass.getResourceAsStream(inFile);
FileOutputStream of = new FileOutputStream(outFile);
int n = 0;
byte[] buffer = new byte[BUFFER_SIZE];
while ((n = is.read(buffer)) != -1) {
of.write(buffer, 0, n);
}
of.close();
is.close();
return true;
} catch (ClassNotFoundException e) {
SystemUtils.LOG.log(
Level.WARNING,
"SystemUtils.copyFileFromJar() ClassNotFoundException while copy file "
+ inFile
+ " to "
+ outFile.getAbsolutePath(),
e);
return false;
} catch (IOException e) {
SystemUtils.LOG.log(
Level.WARNING,
"SystemUtils.copyFileFromJar() IOException while copy file "
+ inFile
+ " to "
+ outFile.getAbsolutePath(),
e);
return false;
} catch (Exception e) {
SystemUtils.LOG.log(
Level.WARNING,
"SystemUtils.copyFileFromJar() Exception while copy file "
+ inFile
+ " to "
+ outFile.getAbsolutePath(),
e);
return false;
}
}
/**
* Update system time.
*
* @param date New System Date and Time
*/
public static void updateSystemTime(final Date date) {
Date oldDate = new Date(); // is saved only for LOG message output
SimpleDateFormat fmt = new SimpleDateFormat("dd-MM-yyyy");
String actDate = fmt.format(date);
fmt.applyPattern("HH:mm:ss");
String actTime = fmt.format(date);
try {
switch (SystemInformation.getInstance().os()) {
case WINDOWS:
Runtime rt = Runtime.getRuntime();
rt.exec("cmd /C date " + actDate);
rt.exec("cmd /C time " + actTime);
break;
case LINUX:
// with root permits only
fmt.applyPattern("MM/dd/yyyy HH:mm:ss");
actDate = fmt.format(date);
// String cmdDate = "date -u -s'" + actDate + "' +'%D %T'";
// execCommand(cmdDate);
break;
default:
break;
}
fmt.applyPattern("dd-MM-yyyy HH:mm:ss");
SystemUtils.LOG.log(
Level.INFO,
"SystemUtils.updateSystemTime() System time was updated from "
+ fmt.format(oldDate)
+ " to "
+ fmt.format(date));
} catch (IOException e) {
// cannot run commands
SystemUtils.LOG.log(
Level.SEVERE, "SystemUtils.updateSystemTime() Exception while updating sys time.", e);
}
}
/**
* Copy inFile to outFile using FileChannels.
*
* @param inFile input file
* @param outFile output file
* @return tue if the copy-operation was a success
*/
public static boolean copyFile(final File inFile, final File outFile) {
try {
FileChannel ic = new FileInputStream(inFile).getChannel();
FileChannel oc = new FileOutputStream(outFile).getChannel();
ic.transferTo(0, ic.size(), oc);
ic.close();
oc.close();
return true;
} catch (IOException e) {
SystemUtils.LOG.log(
Level.INFO,
"SystemUtils.copyFile() Exception while copy file "
+ inFile.getAbsolutePath()
+ " to "
+ outFile.getAbsolutePath(),
e);
return false;
}
}