chrriis.common
Class Utils

java.lang.Object
  chrriis.common.Utils

public class Utils
extends Object

Author:

Christopher Deckers

Field Summary

static boolean	IS_32_BIT
static boolean	IS_64_BIT
static boolean	IS_JAVA_6_OR_GREATER
static boolean	IS_MAC
static boolean	IS_WINDOWS
static boolean	IS_WINDOWS_7_OR_GREATER
static boolean	IS_WINDOWS_VISTA_OR_GREATER
static String	LINE_SEPARATOR

Method Summary

static String	arrayDeepToString(Object array) Produce the deep string value of an array, whatever the actual class type of the array is.
static String	decodeURL(String s)
static void	deleteAll(File fileOrDir) Delete the file, or delete the directtory and all its children recursively.
static String	encodeURL(String s)
static boolean	equals(Object o1, Object o2) Test the equality of 2 objects, with a check on nullity.
static String	escapeXML(String s)
static File	getClassPathFile(Class<?> clazz)
static File	getClassPathFile(String resourcePath)
static File	getDirectory(Class<?> clazz)
static File	getDirectory(String resourcePath)
static File	getJARFile(Class<?> clazz)
static File	getJARFile(String resourcePath)
static File	getLocalFile(String path)
static String	getLocalHostAddress() Get a local host address on which client and server sockets can connect to communicate.
static String	getLocalHostAddress(int port) Get a local host address on which client and server sockets can connect to communicate.
static void	printStackTraces()
static void	printStackTraces(PrintStream printStream)
static void	printStackTraces(PrintWriter printWriter)
static String	simplifyPath(String path) Simplify a path, where separators are '/', by resolving "." and "..".

Methods inherited from class java.lang.Object

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

Field Detail

IS_JAVA_6_OR_GREATER

public static final boolean IS_JAVA_6_OR_GREATER

IS_MAC

public static final boolean IS_MAC

IS_WINDOWS

public static final boolean IS_WINDOWS

IS_32_BIT

public static final boolean IS_32_BIT

IS_64_BIT

public static final boolean IS_64_BIT

IS_WINDOWS_VISTA_OR_GREATER

public static final boolean IS_WINDOWS_VISTA_OR_GREATER

IS_WINDOWS_7_OR_GREATER

public static final boolean IS_WINDOWS_7_OR_GREATER

LINE_SEPARATOR

public static final String LINE_SEPARATOR

Method Detail

decodeURL

public static String decodeURL(String s)

encodeURL

public static String encodeURL(String s)

escapeXML

public static String escapeXML(String s)

getLocalFile

public static File getLocalFile(String path)

Returns:

null or a valid File if the path is a URL or path to a valid local file (that exists).

getClassPathFile

public static File getClassPathFile(String resourcePath)

getClassPathFile

public static File getClassPathFile(Class<?> clazz)

getJARFile

public static File getJARFile(String resourcePath)

getJARFile

public static File getJARFile(Class<?> clazz)

getDirectory

public static File getDirectory(String resourcePath)

getDirectory

public static File getDirectory(Class<?> clazz)

deleteAll

public static void deleteAll(File fileOrDir)

Delete the file, or delete the directtory and all its children recursively.

Parameters:

fileOrDir - a file or a directory to delete.

equals

public static boolean equals(Object o1,
                             Object o2)

Test the equality of 2 objects, with a check on nullity.

Parameters:

o1 - the first object.

o2 - the second object.

Returns:

true if both object are equal, which includes the case where both are null.

arrayDeepToString

public static String arrayDeepToString(Object array)

Produce the deep string value of an array, whatever the actual class type of the array is.

Parameters:

array - the array to get the deep string value of.

Returns:

the deep string value of the array, or null if invalid.

simplifyPath

public static String simplifyPath(String path)

Simplify a path, where separators are '/', by resolving "." and "..".

Returns:

the simplified path.

printStackTraces

public static void printStackTraces()

printStackTraces

public static void printStackTraces(PrintStream printStream)

printStackTraces

public static void printStackTraces(PrintWriter printWriter)

getLocalHostAddress

public static String getLocalHostAddress()

Get a local host address on which client and server sockets can connect to communicate. The result is cached so that only the first call may take some time.

Returns:

the local host address that was found, or null.

getLocalHostAddress

public static String getLocalHostAddress(int port)

Get a local host address on which client and server sockets can connect to communicate.

Parameters:

port - the port on which to test, or 0 for a random test port.

Returns:

the local host address that was found, or null.