Package org.apache.uima.pear.util

Class StringUtil

java.lang.Object

org.apache.uima.pear.util.StringUtil

public class StringUtil
extends Object

The StringUtil class provides utility methods for working with strings.

Constructor Summary

Constructors

Constructor	Description
StringUtil()

Method Summary

Modifier and Type	Method	Description
static Properties	appendProperties(Properties source, Properties plus, boolean override)	Appends properties specified in a given 'plus' object to a given 'source' object.
static int	countWords(String text)
static String	errorStackTraceContent(Throwable error)	Return the content of the stack trace for a given Throwable object.
static String	extractTextFromMarkup(String mString)
static String	getPlainClassName(Class<?> aClass)	Returns a plain name (without package name) of a given Java Class.
static int	indexOfIgnoreCase(String mainStr, String argStr)
static int	indexOfIgnoreCase(String mainStr, String argStr, int fromIndex)
static boolean	isLowerCase(String string)
static boolean	isUpperCase(String string)
static String	toRegExpReplacement(String string)	Converts a given input string to another string that can be used as a 'replacement' string in the String::replaceAll(String regex, String replacement) method.
static String	toRegExpString(String string)	Converts a given input string to another string that can be used in all 'regular expression' methods.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtil

public StringUtil()

Method Detail

appendProperties

public static Properties appendProperties(Properties source,
                                          Properties plus,
                                          boolean override)

Appends properties specified in a given 'plus' object to a given 'source' object. If the 'override' flag is true, the 'plus' properties will override the 'source' properties with the same name, otherwise the 'source' properties will stay.

Parameters:

source - The given 'source' properties object.

plus - The given 'plus' properties object.

override - If this flag is true, the 'plus' properties will override the 'source' properties with the same name, otherwise the 'source' properties will stay.

Returns:

The properties object, containing both the given 'source' properties and the given 'plus' properties.

countWords

public static int countWords(String text)

Parameters:

text - The given string.

Returns:

The number of words in a given string.

errorStackTraceContent

public static String errorStackTraceContent(Throwable error)

Return the content of the stack trace for a given Throwable object.

Parameters:

error - The given Throwable object.

Returns:

The content of the stack trace for the given error.

extractTextFromMarkup

public static String extractTextFromMarkup(String mString)

Parameters:

mString - The given markup string.

Returns:

Text extracted from a given markup string.

getPlainClassName

public static String getPlainClassName(Class<?> aClass)

Returns a plain name (without package name) of a given Java Class.

Parameters:

aClass - The given Java Class.

Returns:

The plain name (without package name) of the given Java Class.

isLowerCase

public static boolean isLowerCase(String string)

Parameters:

string - The given string.

Returns:

true, if all characters in a given string are lowercase letters, false otherwise.

isUpperCase

public static boolean isUpperCase(String string)

Parameters:

string - The given string.

Returns:

true, if all characters in a given string are uppercase letters, false otherwise.

indexOfIgnoreCase

public static int indexOfIgnoreCase(String mainStr,
                                    String argStr)

Parameters:

mainStr - The given string object.

argStr - The given string argument.

Returns:

If the given string argument occurs as a substring, ignoring case, within the given string object, then the index of the first character of the first such substring is returned; if it does not occur as a substring, -1 is returned.

indexOfIgnoreCase

public static int indexOfIgnoreCase(String mainStr,
                                    String argStr,
                                    int fromIndex)

Parameters:

mainStr - The given string object.

argStr - The given string argument.

fromIndex - The index to start the search from.

Returns:

If the given string argument occurs as a substring, ignoring case, within the given string object at a starting index no smaller than fromIndex, then the index of the first character of the first such substring is returned; if it does not occur as a substring starting at fromIndex or beyond, -1 is returned.

toRegExpReplacement

public static String toRegExpReplacement(String string)

Converts a given input string to another string that can be used as a 'replacement' string in the String::replaceAll(String regex, String replacement) method.
Characters to be escaped are: "\ $".

Parameters:

string - The given input string.

Returns:

The string that can be used as a 'replacement' string in the String::replaceAll(String regex, String replacement) method.

toRegExpString

public static String toRegExpString(String string)

Converts a given input string to another string that can be used in all 'regular expression' methods.
Characters to be escaped are: "\ . $ ^ { [ ( | ) * + ?".

Parameters:

string - The given input string.

Returns:

The string that can be used in 'regular expression' methods.