Package org.apache.uima.pear.util
Class StringUtil
- java.lang.Object
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- org.apache.uima.pear.util.StringUtil
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public class StringUtil extends Object
TheStringUtil
class provides utility methods for working with strings.
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Constructor Summary
Constructors Constructor Description StringUtil()
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Method Summary
All Methods Static Methods Concrete Methods 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 givenThrowable
object.static String
extractTextFromMarkup(String mString)
static String
getPlainClassName(Class<?> aClass)
Returns a plain name (without package name) of a given JavaClass
.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 theString::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.
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Method Detail
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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 istrue
, 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 istrue
, 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.
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countWords
public static int countWords(String text)
- Parameters:
text
- The given string.- Returns:
- The number of words in a given string.
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errorStackTraceContent
public static String errorStackTraceContent(Throwable error)
Return the content of the stack trace for a givenThrowable
object.- Parameters:
error
- The givenThrowable
object.- Returns:
- The content of the stack trace for the given error.
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extractTextFromMarkup
public static String extractTextFromMarkup(String mString)
- Parameters:
mString
- The given markup string.- Returns:
- Text extracted from a given markup string.
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getPlainClassName
public static String getPlainClassName(Class<?> aClass)
Returns a plain name (without package name) of a given JavaClass
.- Parameters:
aClass
- The given JavaClass
.- Returns:
- The plain name (without package name) of the given Java
Class
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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.
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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.
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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.
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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 atfromIndex
or beyond,-1
is returned.
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toRegExpReplacement
public static String toRegExpReplacement(String string)
Converts a given input string to another string that can be used as a 'replacement' string in theString::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.
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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.
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