Apache Tomcat 6.0.39

org.apache.tomcat.jni
Class OS

java.lang.Object
  extended by org.apache.tomcat.jni.OS

public class OS
extends java.lang.Object

OS

Version:
$Id: OS.java 939351 2010-04-29 15:41:54Z kkolinko $
Author:
Mladen Turk

Field Summary
static boolean IS_BSD
           
static boolean IS_LINUX
           
static boolean IS_NETWARE
           
static boolean IS_SOLARIS
           
static boolean IS_UNIX
           
static boolean IS_WIN32
           
static boolean IS_WIN64
           
static int LOG_DEBUG
           
static int LOG_EMERG
           
static int LOG_ERROR
           
static int LOG_INFO
           
static int LOG_NOTICE
           
static int LOG_WARN
           
 
Constructor Summary
OS()
           
 
Method Summary
static java.lang.String defaultEncoding(long pool)
          Get the name of the system default characer set.
static java.lang.String expand(java.lang.String str)
          Expand environment variables.
static int info(long[] inf)
          Gather system info.
static java.lang.String localeEncoding(long pool)
          Get the name of the current locale character set.
static int random(byte[] buf, int len)
          Generate random bytes.
static void syslog(int level, java.lang.String message)
          Log message.
static void sysloginit(java.lang.String domain)
          Initialize system logging.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

LOG_EMERG

public static final int LOG_EMERG
See Also:
Constant Field Values

LOG_ERROR

public static final int LOG_ERROR
See Also:
Constant Field Values

LOG_NOTICE

public static final int LOG_NOTICE
See Also:
Constant Field Values

LOG_WARN

public static final int LOG_WARN
See Also:
Constant Field Values

LOG_INFO

public static final int LOG_INFO
See Also:
Constant Field Values

LOG_DEBUG

public static final int LOG_DEBUG
See Also:
Constant Field Values

IS_UNIX

public static final boolean IS_UNIX

IS_NETWARE

public static final boolean IS_NETWARE

IS_WIN32

public static final boolean IS_WIN32

IS_WIN64

public static final boolean IS_WIN64

IS_LINUX

public static final boolean IS_LINUX

IS_SOLARIS

public static final boolean IS_SOLARIS

IS_BSD

public static final boolean IS_BSD
Constructor Detail

OS

public OS()
Method Detail

defaultEncoding

public static java.lang.String defaultEncoding(long pool)
Get the name of the system default characer set.

Parameters:
pool - the pool to allocate the name from, if needed

localeEncoding

public static java.lang.String localeEncoding(long pool)
Get the name of the current locale character set. Defers to apr_os_default_encoding if the current locale's data can't be retreved on this system.

Parameters:
pool - the pool to allocate the name from, if needed

random

public static int random(byte[] buf,
                         int len)
Generate random bytes.

Parameters:
buf - Buffer to fill with random bytes
len - Length of buffer in bytes

info

public static int info(long[] inf)
Gather system info.
 On exit the inf array will be filled with:
 inf[0]  - Total usable main memory size
 inf[1]  - Available memory size
 inf[2]  - Total page file/swap space size
 inf[3]  - Page file/swap space still available
 inf[4]  - Amount of shared memory
 inf[5]  - Memory used by buffers
 inf[6]  - Memory Load

 inf[7]  - Idle Time in microseconds
 inf[8]  - Kernel Time in microseconds
 inf[9]  - User Time in microseconds

 inf[10] - Process creation time (apr_time_t)
 inf[11] - Process Kernel Time in microseconds
 inf[12] - Process User Time in microseconds

 inf[13] - Current working set size.
 inf[14] - Peak working set size.
 inf[15] - Number of page faults.
 

Parameters:
inf - array that will be filled with system information. Array length must be at least 16.

expand

public static java.lang.String expand(java.lang.String str)
Expand environment variables.

Parameters:
str - String to expand
Returns:
Expanded string with replaced environment variables.

sysloginit

public static void sysloginit(java.lang.String domain)
Initialize system logging.

Parameters:
domain - String that will be prepended to every message

syslog

public static void syslog(int level,
                          java.lang.String message)
Log message.

Parameters:
level - Log message severity. See LOG_XXX enums.
message - Message to log

Apache Tomcat 6.0.39

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