Package org.jumpmind.util

Class AppUtils

java.lang.Object

org.jumpmind.util.AppUtils

public class AppUtils
extends Object

General application utility methods

Field Summary

Fields

Modifier and Type	Field	Description
static final String	SYSPROP_HOST_NAME
static final String	SYSPROP_IP_ADDRESS
static final String	SYSPROP_PORT_NUMBER

Constructor Summary

Constructors

Constructor	Description
AppUtils()

Method Summary

Modifier and Type	Method	Description
static String	formatStackTrace(StackTraceElement[] stackTrace)
static String	formatStackTrace(StackTraceElement[] stackTrace, int indentSpaces, boolean indentFirst)
static String	getCanonicalSymHome(String dirName)
static String	getHostName()
static String	getIpAddress()
static Date	getLocalDateForOffset(String timezoneOffset)
static String	getPortNumber()
static String	getProtocol()
static String	getSymHome()
static String	getTimezoneOffset()	This method will return the timezone in RFC822 format.
static boolean	isSystemPropertySet(String propName, boolean defaultValue)
static <T> T	newInstance(Class<T> clazz, Class<?> defaultClass)
static <T> T	newInstance(Class<T> clazz, Class<?> defaultClass, Object[] args, Class<?>[] argTypes)
static void	sleep(long ms)	Useful method to sleep that catches and ignores the InterruptedException
static void	unzip(InputStream in, File toDir)

Methods inherited from class java.lang.Object

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

Field Details

SYSPROP_HOST_NAME

public static final String SYSPROP_HOST_NAME

See Also:

• Constant Field Values

SYSPROP_PORT_NUMBER

public static final String SYSPROP_PORT_NUMBER

See Also:

• Constant Field Values

SYSPROP_IP_ADDRESS

public static final String SYSPROP_IP_ADDRESS

See Also:

• Constant Field Values

Constructor Details

AppUtils

public AppUtils()

Method Details

getSymHome

public static String getSymHome()

getCanonicalSymHome

public static String getCanonicalSymHome(String dirName)

getHostName

public static String getHostName()

getPortNumber

public static String getPortNumber()

getProtocol

public static String getProtocol()

getIpAddress

public static String getIpAddress()

getTimezoneOffset

public static String getTimezoneOffset()

This method will return the timezone in RFC822 format.

The format ("-+HH:MM") has advantages over the older timezone codes ("AAA"). The difference of 5 hours from GMT is obvious with "-05:00" but only implied with "EST". There is no ambiguity saying "-06:00", but you don't know if "CST" means Central Standard Time ("-06:00") or China Standard Time ("+08:00"). The timezone codes need to be loaded on the system, and definitions are not standardized between systems. Therefore, to remain agnostic to operating systems and databases, the RFC822 format is the best choice.

getLocalDateForOffset

public static Date getLocalDateForOffset(String timezoneOffset)

Parameters:

timezoneOffset - see description for getTimezoneOffset()

Returns:

a date object that represents the local date and time at the passed in offset

sleep

public static void sleep(long ms)

Useful method to sleep that catches and ignores the InterruptedException

Parameters:

ms - milliseconds to sleep

isSystemPropertySet

public static boolean isSystemPropertySet(String propName,
 boolean defaultValue)

unzip

public static void unzip(InputStream in,
 File toDir)

formatStackTrace

public static String formatStackTrace(StackTraceElement[] stackTrace)

formatStackTrace

public static String formatStackTrace(StackTraceElement[] stackTrace,
 int indentSpaces,
 boolean indentFirst)

newInstance

public static <T> T newInstance(Class<T> clazz,
 Class<?> defaultClass)

newInstance

public static <T> T newInstance(Class<T> clazz,
 Class<?> defaultClass,
 Object[] args,
 Class<?>[] argTypes)