Package org.apache.tomcat.jni
Class OS
- java.lang.Object
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- org.apache.tomcat.jni.OS
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public class OS extends Object
OS- Author:
- Mladen Turk
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Field Summary
Fields Modifier and Type Field Description static boolean
IS_BSD
static boolean
IS_LINUX
static boolean
IS_MACOSX
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
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Constructor Summary
Constructors Constructor Description OS()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static String
defaultEncoding(long pool)
Get the name of the system default character set.static String
expand(String str)
Expand environment variables.static int
info(long[] inf)
Gather system info.static 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, String message)
Log message.static void
sysloginit(String domain)
Initialize system logging.
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Field Detail
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LOG_EMERG
public static final int LOG_EMERG
- See Also:
- Constant Field Values
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LOG_ERROR
public static final int LOG_ERROR
- See Also:
- Constant Field Values
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LOG_NOTICE
public static final int LOG_NOTICE
- See Also:
- Constant Field Values
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LOG_WARN
public static final int LOG_WARN
- See Also:
- Constant Field Values
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LOG_INFO
public static final int LOG_INFO
- See Also:
- Constant Field Values
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LOG_DEBUG
public static final int LOG_DEBUG
- See Also:
- Constant Field Values
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IS_UNIX
public static final boolean IS_UNIX
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IS_NETWARE
public static final boolean IS_NETWARE
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IS_WIN32
public static final boolean IS_WIN32
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IS_WIN64
public static final boolean IS_WIN64
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IS_LINUX
public static final boolean IS_LINUX
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IS_SOLARIS
public static final boolean IS_SOLARIS
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IS_BSD
public static final boolean IS_BSD
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IS_MACOSX
public static final boolean IS_MACOSX
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Method Detail
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defaultEncoding
public static String defaultEncoding(long pool)
Get the name of the system default character set.- Parameters:
pool
- the pool to allocate the name from, if needed
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localeEncoding
public static 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 retrieved on this system.- Parameters:
pool
- the pool to allocate the name from, if needed
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random
public static int random(byte[] buf, int len)
Generate random bytes.- Parameters:
buf
- Buffer to fill with random byteslen
- Length of buffer in bytes
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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.
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expand
public static String expand(String str)
Expand environment variables.- Parameters:
str
- String to expand- Returns:
- Expanded string with replaced environment variables.
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sysloginit
public static void sysloginit(String domain)
Initialize system logging.- Parameters:
domain
- String that will be prepended to every message
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syslog
public static void syslog(int level, String message)
Log message.- Parameters:
level
- Log message severity. See LOG_XXX enums.message
- Message to log
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