com.nomagic.rcpf.product.utils

Class Utilities

java.lang.Object

com.nomagic.utils.CameoUtilities

com.nomagic.rcpf.product.utils.Utilities

@OpenApiAll
public class Utilities
extends CameoUtilities

General purpose utilities.

Constructor Summary

Constructors

Constructor and Description
Utilities()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	addHttpParameter(java.lang.String parameters, java.lang.String parameter, java.lang.String value) Adds http parameter to given parameters string
static boolean	areChildrenDisabled(javax.swing.JMenu menu) Are all children disabled?
static boolean	checkProperty(java.util.Properties properties, java.lang.String property, boolean defaultValue)
static boolean	checkResolvableException(boolean rule) if rule is false and it's DEVELOPER mode throws IllegalStateException
static boolean	checkSystemProperty(java.lang.String property, boolean defaultValue) Checks given system (boolean) property value
static java.lang.String	clearAllLine(java.lang.String src, java.lang.String trash) Removes all trash from string
static java.lang.String	clearLine(java.lang.String line, java.lang.String trash) removes from line ends wanted characters
static int	collectInteger(byte[] bytes) Makes int value from array of bytes
static boolean	compareFiles(java.io.File f1, java.io.File f2) Compares two files
static boolean	compareStreams(java.io.InputStream oldStr, java.io.InputStream newStr) Compares two input streams.
static byte[]	compressData(byte[] data) Compresses specified data using gzip output stream and returns the result as bytes array.
static byte[]	compressData(byte[] data, java.lang.String zipEntryName) Compresses specified data using zip output stream and returns the result as bytes array.
static java.lang.String	concatHttpParameter(java.lang.String parameters1, java.lang.String parameters2) Concant given http parameters
static java.lang.String	constructHttpParameter(java.lang.String parameter, java.lang.String value) Constructs http parameter
static boolean	containsOnlyFiles(java.util.List list) Indicates if given list contains only file objects.
static void	copy(java.io.InputStream input, java.io.OutputStream output) Copies all bytes from InputStream into OutputStream.
static void	copy(java.io.InputStream input, java.io.OutputStream output, long crc) Copies all bytes from InputStream into OutputStream.
static boolean	copyDirectory(java.io.File source, java.io.File destination) copy all directory recursivelly
static boolean	copyFile(java.io.File source, java.io.File dst) Copy source file to destination file.
static boolean	copyFile(java.lang.String sourceName, java.lang.String dstName) Copy source file to destination file.
static int	countOccurrences(java.lang.String string, char c) Returns the number of times the character c appears in a string.
static java.awt.Rectangle	coverRectangle(java.awt.Rectangle inner, java.awt.Rectangle outer) Moves outer rectengle in such way that it must cover inner one (if outer is smaller than inner resizes outer).
static java.awt.Cursor	createCursor(java.awt.Image image, java.awt.Point pt, java.lang.String cursorName) Creates the cursor for given image.
static java.awt.Rectangle	createRectFromList(java.util.List v) Creates rectangle from vector of points.
static java.lang.String	createStringRepresentation(java.util.Collection value)
static java.util.List<java.awt.Point>	deepPointsClone(java.util.List<java.awt.Point> v) Makes a deep clone of vector that contains points.
static java.util.List<java.awt.Point>	deepPointsClone(java.util.List<java.awt.Point> v, boolean cloneList) Makes a deep clone of vector that contains points.
static void	deleteDirContent(java.io.File f) Removes given directory contents.
static void	deleteTree(java.io.File f) Removes given directory and all its contents.
static void	deleteTreeOnExit(java.io.File f) Removes given file (directory and all its contents) on exit.
static byte[]	distributeInteger(int intValue, int size) Distributes integer intValue into array of bytes.
static void	dumpThreads() Dumps all threads to system out.
static void	extractZip(java.util.zip.ZipFile zipFile, java.lang.String dstDir) Extracts files from Zip archive
static java.awt.Rectangle	fitInRectangle(java.awt.Rectangle small, java.awt.Rectangle big) recalculate bounds to fit in rectangle
static java.lang.String	getAsString(javax.swing.KeyStroke e) Constructs the string representation of the given key stroke.
static java.lang.String	getAsStringKeyStrokes(java.util.List shortcuts, java.lang.String bracketFirst, java.lang.String bracketSecond) Constructs the string representation of the given key strokes.
static byte[]	getBytes(java.lang.String str) Returns bytes of string.
static java.lang.String	getClassName(java.lang.Class clazz) Get class name.
static java.lang.String	getFileExtension(java.io.File file) Get The given file extension.
static java.lang.String	getFileName(java.lang.String text)
static java.lang.String	getFileWitoutExtention(java.lang.String filename) Returns file name without extention (removes chars from last "." to end of string)
static java.lang.String	getHtmlPage(java.lang.String pageHttpAddress, java.lang.String parameters, ProxyServerData proxy) Deprecated. use HttpUtilities.getHtmlPage(String, String, com.nomagic.utils.http.HttpProxyServerData, int)
static javax.swing.JMenuItem	getItemWithText(javax.swing.JPopupMenu menu, java.lang.String text) Returns inner component (not recursively) with given text.
static java.lang.String	getTempDir() Returns directory can be used for writing temporary files.
static boolean	hasExtension(java.lang.String name, java.util.List extensions) Checks if given file name has one of given file extensions.
static boolean	hasExtension(java.lang.String name, java.lang.String extension) Checks if given file name has given file extension.
static java.lang.String	implode(java.util.Collection collection, java.lang.String delimiter)
static java.lang.String	implode(java.lang.String[] values, java.lang.String delimiter)
static java.lang.String	insertSeparators(char[] chars, java.lang.String separator, int groupSize) Constructs string from arrays of chars.
static java.util.List	internString(java.util.List strings) Replace all strings in given collection with String.intern().
static boolean	isAlphaNumeric(java.lang.String str)
static boolean	isUseProxy(ProxyServerData proxy) Checks if use proxy server according given proxy server data
static boolean	isValidKeyCode(int keyCode) Checks if given code is correct one or not.
static boolean	match(java.lang.String pattern, java.lang.String string) algorithm for searching with wildcards.
static boolean	matchEmpty(java.lang.String patter, java.lang.String string) Matches empty string also
static <T> java.util.List<T>	mergeLists(java.util.List<T> l1, java.util.List<T> l2) Merges two lists into newly created one.
static void	normalize(java.awt.Rectangle rect) normalizes rectangle mRectToDraw;
static void	normalize(java.awt.Rectangle mRectToDraw, java.awt.Point mFirstCorner, java.awt.Point mSecondCorner) normalizes rectangle mRectToDraw; Calculates rectangle size and location using mFirstCorner and mSecondCorner.
static java.net.HttpURLConnection	openHttpURLConnection(java.lang.String pageHttpAddress, ProxyServerData proxyServerData) Deprecated. use HttpJavaUtilities.openHttpURLConnection(String, String, com.nomagic.utils.http.HttpProxyServerData, int, long)
static java.lang.String[]	parseExceptQuotes(java.lang.String cmd) parses string by standard tokens, except parts wrapped in quotes
static java.lang.String	readFileSkipFirstLines(java.io.File file, int n) Reads a file to string and skips a specified number of lines from the beginning.
static java.lang.String	removeComments(java.lang.String body) Removes / * * / comments from body.
static java.lang.String	removeExtension(java.lang.String name, java.util.Collection<java.lang.String> extensions) Removes file extension form given file name.
static java.lang.String	removeFromLine(java.lang.String line, java.lang.String trash) Removes from line trash line
static java.lang.String	removeNonUtf8CompliantCharacters(java.lang.String inString)
static java.lang.String	removeSeparators(java.lang.String str, java.lang.String separator) Removes separators from specified str
static java.lang.String	replace(java.lang.String src, java.lang.String pattern, java.lang.String replaceWith) Replaces string fragment with another string
static java.lang.String	replaceEpsString(java.lang.String aStr) Replace special char for Eps format string
static java.lang.String	reverseString(java.lang.String source) Given a string, returns a string with reversed characters.
static void	sendHttpParameters(java.net.HttpURLConnection connection, java.lang.String parameters) Deprecated. use HttpJavaUtilities.sendHttpParameters(java.net.HttpURLConnection, String)
static void	sortStrings(java.util.Vector elem) Sorts elements in strings' vector
static java.lang.String[]	splitString(java.lang.String str, java.lang.String delim, boolean returnDelims) Splits string
static void	swapVector(java.util.List v) Swaps vector ( first element will be last, same with others elements)
static byte[]	toByteArray(java.io.InputStream stream) Copies the given file into the array of bytes.
static byte[]	toByteArray(java.lang.String bytes) Returns byte array from string formated in toString(byte[]) method.
static java.lang.String	toString(byte[] data) Returns string representation of the given byte array.
static java.lang.String	toString(java.io.InputStream inputStream) Get String representation of inputStream
static java.lang.String	trim(java.lang.String src, java.lang.String trashBegin, java.lang.String trashEnd) Removes from begin and end given Strings.
static byte[]	uncompressData(byte[] data) Uncompresses specified data using gzip input stream and returns the result as bytes array.
static void	zipDir(java.lang.String dir2zip, java.util.zip.ZipOutputStream zos) Compress specified directory recursivelly to the specified stream.

Methods inherited from class com.nomagic.utils.CameoUtilities

copy, isEqual, isEqual, replaceNewLine, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Utilities

public Utilities()

Method Detail

hasExtension

public static boolean hasExtension(java.lang.String name,
                   java.util.List extensions)

Checks if given file name has one of given file extensions.

Parameters:

name -

extensions -

Returns:

hasExtension

public static boolean hasExtension(java.lang.String name,
                   java.lang.String extension)

Checks if given file name has given file extension.

Parameters:

name -

extension -

Returns:

removeExtension

public static java.lang.String removeExtension(java.lang.String name,
                               java.util.Collection<java.lang.String> extensions)

Removes file extension form given file name.

Parameters:

name -

extensions - extensions

Returns:

createStringRepresentation

public static java.lang.String createStringRepresentation(java.util.Collection value)

deepPointsClone

public static java.util.List<java.awt.Point> deepPointsClone(java.util.List<java.awt.Point> v)

Makes a deep clone of vector that contains points.

Parameters:

v - List of point.

Returns:

vector

deepPointsClone

public static java.util.List<java.awt.Point> deepPointsClone(java.util.List<java.awt.Point> v,
                                             boolean cloneList)

Makes a deep clone of vector that contains points.

Parameters:

v - List of point.

cloneList - True if clone to new list.

Returns:

vector

replace

public static java.lang.String replace(java.lang.String src,
                       java.lang.String pattern,
                       java.lang.String replaceWith)

Replaces string fragment with another string

Parameters:

src - Source string.

pattern - String pattern.

replaceWith - The another string.

Returns:

string.

match

public static boolean match(java.lang.String pattern,
            java.lang.String string)

algorithm for searching with wildcards.

Parameters:

pattern - The given pattern.

string - String.

Returns:

boolean expression.

matchEmpty

public static boolean matchEmpty(java.lang.String patter,
                 java.lang.String string)

Matches empty string also

Parameters:

patter - The given pattern.

string - The given string.

Returns:

boolean

sortStrings

public static void sortStrings(java.util.Vector elem)

Sorts elements in strings' vector

Parameters:

elem - The given vector.

clearLine

public static java.lang.String clearLine(java.lang.String line,
                         java.lang.String trash)

removes from line ends wanted characters

Parameters:

line - The given line.

trash - characters as string.

Returns:

String.

clearAllLine

public static java.lang.String clearAllLine(java.lang.String src,
                            java.lang.String trash)

Removes all trash from string

Parameters:

src - String that be removed trash

trash - Trash string.

Returns:

String.

removeFromLine

public static java.lang.String removeFromLine(java.lang.String line,
                              java.lang.String trash)

Removes from line trash line

Parameters:

line - the given line.

trash - characters as string.

Returns:

The given string without From Line.

countOccurrences

public static int countOccurrences(java.lang.String string,
                   char c)

Returns the number of times the character c appears in a string.

Parameters:

string - The given string.

c - character.

Returns:

number of time.

removeNonUtf8CompliantCharacters

public static java.lang.String removeNonUtf8CompliantCharacters(java.lang.String inString)

fitInRectangle

public static java.awt.Rectangle fitInRectangle(java.awt.Rectangle small,
                                java.awt.Rectangle big)

recalculate bounds to fit in rectangle

Parameters:

small - Small rectangle.

big - Big rectangle.

Returns:

New rectangle.

containsOnlyFiles

public static boolean containsOnlyFiles(java.util.List list)

Indicates if given list contains only file objects.

Parameters:

list - list to check.

Returns:

true if given list contains only file objects, false otherwise.

coverRectangle

public static java.awt.Rectangle coverRectangle(java.awt.Rectangle inner,
                                java.awt.Rectangle outer)

Moves outer rectengle in such way that it must cover inner one (if outer is smaller than inner resizes outer). Modifies outer and returns it.

Parameters:

inner - Inner rectangle.

outer - Outer rectangle.

Returns:

Moved rectangle.

createRectFromList

public static java.awt.Rectangle createRectFromList(java.util.List v)

Creates rectangle from vector of points.

Parameters:

v - List of point.

Returns:

null if vector was empty.

swapVector

public static void swapVector(java.util.List v)

Swaps vector ( first element will be last, same with others elements)

Parameters:

v - List that be swaped.

getFileWitoutExtention

public static java.lang.String getFileWitoutExtention(java.lang.String filename)

Returns file name without extention (removes chars from last "." to end of string)

Parameters:

filename - The given file name.

getFileExtension

public static java.lang.String getFileExtension(java.io.File file)

Get The given file extension.

Parameters:

file - The given file.

Returns:

File extension.

getFileName

public static java.lang.String getFileName(java.lang.String text)

removeComments

public static java.lang.String removeComments(java.lang.String body)

Removes / * * / comments from body.

Parameters:

body - String body.

Returns:

body without comment.

trim

public static java.lang.String trim(java.lang.String src,
                    java.lang.String trashBegin,
                    java.lang.String trashEnd)

Removes from begin and end given Strings.

Parameters:

src - The given string.

trashBegin - Trash string that is a beginning.

trashEnd - Trash string that is a ending.

Returns:

String

replaceEpsString

public static java.lang.String replaceEpsString(java.lang.String aStr)

Replace special char for Eps format string

Parameters:

aStr - The given string.

Returns:

String

copy

public static void copy(java.io.InputStream input,
        java.io.OutputStream output,
        long crc)
                 throws java.io.IOException

Copies all bytes from InputStream into OutputStream. Closes the streams.

Parameters:

input - the inputstream.

output - the output stream.

crc - crc to check. -1 if do not check crc.

Throws:

java.io.IOException

copy

public static void copy(java.io.InputStream input,
        java.io.OutputStream output)
                 throws java.io.IOException

Copies all bytes from InputStream into OutputStream. Closes the streams.

Parameters:

input - the inputstream.

output - the output stream.

Throws:

java.io.IOException

copyFile

public static boolean copyFile(java.lang.String sourceName,
               java.lang.String dstName)

Copy source file to destination file.

Parameters:

sourceName - Source file name.

dstName - destination file name.

Returns:

True if work successful.

copyFile

public static boolean copyFile(java.io.File source,
               java.io.File dst)

Copy source file to destination file.

Parameters:

source - Source file.

dst - destination file.

Returns:

True if work successful.

copyDirectory

public static boolean copyDirectory(java.io.File source,
                    java.io.File destination)

copy all directory recursivelly

Parameters:

source -

destination -

extractZip

public static void extractZip(java.util.zip.ZipFile zipFile,
              java.lang.String dstDir)
                       throws java.io.IOException

Extracts files from Zip archive

Parameters:

zipFile - Zip archive file

dstDir - name of the destination directory

Throws:

java.io.IOException

toByteArray

public static byte[] toByteArray(java.io.InputStream stream)

Copies the given file into the array of bytes.

Parameters:

stream - the given file.

Returns:

the byte array with the context of the file;null if some errors occurs

getItemWithText

public static javax.swing.JMenuItem getItemWithText(javax.swing.JPopupMenu menu,
                                    java.lang.String text)

Returns inner component (not recursively) with given text.

Parameters:

menu - The given JPopupMenu.

text - The given text.

Returns:

JMenuItem.

createCursor

public static java.awt.Cursor createCursor(java.awt.Image image,
                           java.awt.Point pt,
                           java.lang.String cursorName)

Creates the cursor for given image.

Parameters:

image - the given image.

pt - the hot point.

cursorName - the cursor name.

Returns:

Curser.

getAsStringKeyStrokes

public static java.lang.String getAsStringKeyStrokes(java.util.List shortcuts,
                                     java.lang.String bracketFirst,
                                     java.lang.String bracketSecond)

Constructs the string representation of the given key strokes.

Parameters:

shortcuts - The given key strokes.

bracketFirst - Open bracket.

bracketSecond - Close bracket.

Returns:

String.

getAsString

public static java.lang.String getAsString(javax.swing.KeyStroke e)

Constructs the string representation of the given key stroke.

Parameters:

e - the given key stroke.

Returns:

String representation.

isValidKeyCode

public static boolean isValidKeyCode(int keyCode)

Checks if given code is correct one or not.

Parameters:

keyCode - The given key code.

Returns:

true if given code is not CTRL, SHIFT, META or ALT.

toString

public static java.lang.String toString(byte[] data)

Returns string representation of the given byte array.

Parameters:

data - the given bytes array.

Returns:

the string representation (every byte is represented as hex string separated by space)

toByteArray

public static byte[] toByteArray(java.lang.String bytes)

Returns byte array from string formated in toString(byte[]) method.

Parameters:

bytes - the given string.

Returns:

the byte array.

areChildrenDisabled

public static boolean areChildrenDisabled(javax.swing.JMenu menu)

Are all children disabled?

Parameters:

menu - the menu

Returns:

true, if all menu children are disabled

normalize

public static void normalize(java.awt.Rectangle mRectToDraw,
             java.awt.Point mFirstCorner,
             java.awt.Point mSecondCorner)

normalizes rectangle mRectToDraw; Calculates rectangle size and location using mFirstCorner and mSecondCorner. This method is useful when resizing a shape and only opposite corners are known.

Parameters:

mRectToDraw - rectangle to normalize

mFirstCorner - first corner

mSecondCorner - second corner

normalize

public static void normalize(java.awt.Rectangle rect)

normalizes rectangle mRectToDraw;

Parameters:

rect - rectangle to normalize

getTempDir

public static java.lang.String getTempDir()

Returns directory can be used for writing temporary files.

Returns:

string.

openHttpURLConnection

@Deprecated
public static java.net.HttpURLConnection openHttpURLConnection(java.lang.String pageHttpAddress,
                                                          ProxyServerData proxyServerData)
                                                        throws java.io.IOException

Deprecated. use HttpJavaUtilities.openHttpURLConnection(String, String, com.nomagic.utils.http.HttpProxyServerData, int, long)

Opens HttpURLConnection according given page address and proxy server data.

Parameters:

pageHttpAddress - page address with protocol e.g "http://www.magicdraw.com"

proxyServerData - proxy server data

Returns:

HttpURLConnection.

Throws:

java.io.IOException

isUseProxy

public static boolean isUseProxy(ProxyServerData proxy)

Checks if use proxy server according given proxy server data

Parameters:

proxy - proxy data.

Returns:

true if use; otherwise - false

getHtmlPage

@Deprecated
public static java.lang.String getHtmlPage(java.lang.String pageHttpAddress,
                                      java.lang.String parameters,
                                      ProxyServerData proxy)
                                    throws java.io.IOException

Deprecated. use HttpUtilities.getHtmlPage(String, String, com.nomagic.utils.http.HttpProxyServerData, int)

Returns HTML page

Parameters:

pageHttpAddress - page address with protocol e.g "http://www.magicdraw.com"

parameters - parameters for POST method (null if no data to POST)

proxy - proxy server data

Returns:

HTML page

Throws:

java.io.IOException

toString

public static java.lang.String toString(java.io.InputStream inputStream)
                                 throws java.io.IOException

Get String representation of inputStream

Parameters:

inputStream - The given inputStream

Returns:

String representation.

Throws:

java.io.IOException

sendHttpParameters

@Deprecated
public static void sendHttpParameters(java.net.HttpURLConnection connection,
                                 java.lang.String parameters)
                               throws java.io.IOException

Deprecated. use HttpJavaUtilities.sendHttpParameters(java.net.HttpURLConnection, String)

Send Http Parameters.

Parameters:

connection - HttpURLConnection

parameters - Http Parameters.

Throws:

java.io.IOException

constructHttpParameter

public static java.lang.String constructHttpParameter(java.lang.String parameter,
                                      java.lang.String value)

Constructs http parameter

Parameters:

parameter - parameter name

value - parameter value

Returns:

constructed parameter

addHttpParameter

public static java.lang.String addHttpParameter(java.lang.String parameters,
                                java.lang.String parameter,
                                java.lang.String value)

Adds http parameter to given parameters string

Parameters:

parameters - parameters

parameter - parameter name to add

value - parameter value to add

Returns:

constructed parameters string

concatHttpParameter

public static java.lang.String concatHttpParameter(java.lang.String parameters1,
                                   java.lang.String parameters2)

Concant given http parameters

Parameters:

parameters1 -

parameters2 -

Returns:

concatenated parameters

insertSeparators

public static java.lang.String insertSeparators(char[] chars,
                                java.lang.String separator,
                                int groupSize)

Constructs string from arrays of chars. String characters are grouped into groups. Groups are separated by separator.

Parameters:

chars - array of characters to divide

separator - group separator

groupSize - size if the group

Returns:

result string

removeSeparators

public static java.lang.String removeSeparators(java.lang.String str,
                                java.lang.String separator)

Removes separators from specified str

Parameters:

str - string to unite

separator -

Returns:

str without separators

getBytes

public static byte[] getBytes(java.lang.String str)

Returns bytes of string. 2 bytes for every char.

Parameters:

str -

distributeInteger

public static byte[] distributeInteger(int intValue,
                       int size)

Distributes integer intValue into array of bytes. int is 4 bytes, so max array size is 4

Parameters:

intValue - int intValue to distribute

size - size of result array

Returns:

array of bytes

collectInteger

public static int collectInteger(byte[] bytes)

Makes int value from array of bytes

Parameters:

bytes - array of bytes

Returns:

int value

compareStreams

public static boolean compareStreams(java.io.InputStream oldStr,
                     java.io.InputStream newStr)
                              throws java.io.IOException

Compares two input streams.

Parameters:

oldStr - First input stream.

newStr - Second input stream.

Returns:

true if streams contains identical data.

Throws:

java.io.IOException

compareFiles

public static boolean compareFiles(java.io.File f1,
                   java.io.File f2)
                            throws java.io.IOException

Compares two files

Parameters:

f1 - First file.

f2 - Second file.

Returns:

true if files contains identical data.

Throws:

java.io.IOException

deleteTree

public static void deleteTree(java.io.File f)

Removes given directory and all its contents. File.delete fails if directory is not empty

Parameters:

f - file to delete

deleteTreeOnExit

public static void deleteTreeOnExit(java.io.File f)

Removes given file (directory and all its contents) on exit. File.delete fails if directory is not empty

Parameters:

f - file to delete

deleteDirContent

public static void deleteDirContent(java.io.File f)

Removes given directory contents. File.delete fails if directory is not empty

Parameters:

f - file to delete

getClassName

public static java.lang.String getClassName(java.lang.Class clazz)

Get class name.

Parameters:

clazz - The given class.

Returns:

Class name.

isAlphaNumeric

public static boolean isAlphaNumeric(java.lang.String str)

mergeLists

public static <T> java.util.List<T> mergeLists(java.util.List<T> l1,
                               java.util.List<T> l2)

Merges two lists into newly created one.

Parameters:

l1 - first list.

l2 - second list.

Returns:

newly created list with added elements from l1 and l2.

splitString

public static java.lang.String[] splitString(java.lang.String str,
                             java.lang.String delim,
                             boolean returnDelims)

Splits string

Parameters:

str - string to split

delim - delimiter

returnDelims - flag indicating whether to return the delimiters with string

Returns:

array of strings

implode

public static java.lang.String implode(java.util.Collection collection,
                       java.lang.String delimiter)

implode

public static java.lang.String implode(java.lang.String[] values,
                       java.lang.String delimiter)

parseExceptQuotes

public static java.lang.String[] parseExceptQuotes(java.lang.String cmd)

parses string by standard tokens, except parts wrapped in quotes

Parameters:

cmd -

Returns:

readFileSkipFirstLines

public static java.lang.String readFileSkipFirstLines(java.io.File file,
                                      int n)

Reads a file to string and skips a specified number of lines from the beginning.

Parameters:

file - - file to read.

n - - number of lines to skip from the beginning.

Returns:

file contents as string with skipped lines.

zipDir

public static void zipDir(java.lang.String dir2zip,
          java.util.zip.ZipOutputStream zos)
                   throws java.io.IOException

Compress specified directory recursivelly to the specified stream.

Parameters:

dir2zip - directory to zip.

zos - ZipOutputStream object.

Throws:

java.io.IOException - if any occurs during

compressData

public static byte[] compressData(byte[] data,
                  java.lang.String zipEntryName)
                           throws java.io.IOException

Compresses specified data using zip output stream and returns the result as bytes array.

Parameters:

data - a data.

zipEntryName - name of how the data will be named in the archive.

Returns:

compressed data.

Throws:

java.io.IOException - if any occurs during compressing the data.

compressData

public static byte[] compressData(byte[] data)
                           throws java.io.IOException

Compresses specified data using gzip output stream and returns the result as bytes array.

Parameters:

data - a data.

Returns:

compressed data.

Throws:

java.io.IOException - if any occurs during compressing the data.

uncompressData

public static byte[] uncompressData(byte[] data)
                             throws java.io.IOException

Uncompresses specified data using gzip input stream and returns the result as bytes array.

Parameters:

data - a data.

Returns:

compressed data.

Throws:

java.io.IOException - if any occurs during compressing the data.

checkSystemProperty

public static boolean checkSystemProperty(java.lang.String property,
                          boolean defaultValue)

Checks given system (boolean) property value

Parameters:

property -

defaultValue -

Returns:

value of the system property, or defaultValue if system property is not set

checkProperty

public static boolean checkProperty(java.util.Properties properties,
                    java.lang.String property,
                    boolean defaultValue)

checkResolvableException

public static boolean checkResolvableException(boolean rule)

if rule is false and it's DEVELOPER mode throws IllegalStateException

Parameters:

rule -

Returns:

rule

internString

public static java.util.List internString(java.util.List strings)

Replace all strings in given collection with String.intern().

Parameters:

strings - collection of object. Strings among these objects will be interned, other objects will remain.

Returns:

the same collection as given

dumpThreads

public static void dumpThreads()

Dumps all threads to system out.

reverseString

public static java.lang.String reverseString(java.lang.String source)

Given a string, returns a string with reversed characters.

Parameters:

source - string which has to be reversed.

Returns:

a string with reversed characters.