Package com.itextpdf.commons.utils

Class SystemUtil

java.lang.Object

com.itextpdf.commons.utils.SystemUtil

 public final class SystemUtil extends Object 
      

This file is a helper class for internal usage only. Be aware that its API and functionality may be changed in future.

Method Summary

Modifier and Type	Method	Description
static long	getFreeMemory()
static String	getPropertyOrEnvironmentVariable(String name)	Gets either java property or environment variable with given name.
static long	getRelativeTimeMillis()	Should be used in relative constructs (for example to check how many milliseconds have passed).
static int	getTimeBasedIntSeed()
static long	getTimeBasedSeed()
static StringBuilder	runProcessAndCollectErrors(String execPath, String params)
static int	runProcessAndGetExitCode(String exec, String params)
static int	runProcessAndGetExitCode(String exec, String params, String workingDirPath)
static String	runProcessAndGetOutput(String command, String params)
static ProcessInfo	runProcessAndGetProcessInfo(String command, String params)
static boolean	runProcessAndWait(String exec, String params)
static boolean	runProcessAndWait(String exec, String params, String workingDirPath)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getTimeBasedSeed

 public static long getTimeBasedSeed() 
            

getTimeBasedIntSeed

 public static int getTimeBasedIntSeed() 
            

getRelativeTimeMillis

 public static long getRelativeTimeMillis() 
            

Should be used in relative constructs (for example to check how many milliseconds have passed).

Shouldn't be used in the Date creation since the value returned by this method is different in С#. For getting current time consistently use DateTimeUtil.getCurrentTimeDate().

Returns:

relative time in milliseconds.

getFreeMemory

 public static long getFreeMemory() 
            

getPropertyOrEnvironmentVariable

 public static String getPropertyOrEnvironmentVariable 
             (String name) 
            

Gets either java property or environment variable with given name.

Parameters:

name - the name of either java property or environment variable.

Returns:

property or variable value or null if there is no such.

runProcessAndWait

 public static boolean runProcessAndWait 
             (String exec, String params) throws IOException, InterruptedException 
            

Throws:

IOException

InterruptedException

runProcessAndWait

 public static boolean runProcessAndWait 
             (String exec, String params, String workingDirPath) throws IOException, InterruptedException 
            

Throws:

IOException

InterruptedException

runProcessAndGetExitCode

 public static int runProcessAndGetExitCode 
             (String exec, String params) throws IOException, InterruptedException 
            

Throws:

IOException

InterruptedException

runProcessAndGetExitCode

 public static int runProcessAndGetExitCode 
             (String exec, String params, String workingDirPath) throws IOException, InterruptedException 
            

Throws:

IOException

InterruptedException

runProcessAndGetOutput

 public static String runProcessAndGetOutput 
             (String command, String params) throws IOException 
            

Throws:

IOException

runProcessAndCollectErrors

 public static StringBuilder runProcessAndCollectErrors 
             (String execPath, String params) throws IOException 
            

Throws:

IOException

runProcessAndGetProcessInfo

 public static ProcessInfo runProcessAndGetProcessInfo 
             (String command, String params) throws IOException, InterruptedException 
            

Throws:

IOException

InterruptedException