Class SelectorUtils
This is a utility class used by selectors and DirectoryScanner. The functionality more properly belongs just to selectors, but unfortunately DirectoryScanner exposed these as protected methods. Thus we have to support any subclasses of DirectoryScanner that may access these methods.
This is a Singleton.
- Since:
- 1.5
- Version:
- $Id$
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final Stringprivate static SelectorUtilsstatic final Stringstatic final Stringstatic final String -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate static booleanequals(char c1, char c2, boolean isCaseSensitive) Tests whether two characters are equal.static SelectorUtilsRetrieves the manager of the Singleton.(package private) static booleanisAntPrefixedPattern(String pattern) private static booleanisDoubleStar(char[] patDir) static booleanisOutOfDate(File src, File target, int granularity) Returns dependency information on these two files.(package private) static booleanisRegexPrefixedPattern(String pattern) static booleanmatch(char[] patArr, char[] strArr, boolean isCaseSensitive) static booleanTests whether or not a string matches against a pattern.static booleanTests whether or not a string matches against a pattern.(package private) static booleanmatchAntPathPattern(char[][] patDirs, char[][] strDirs, boolean isCaseSensitive) (package private) static booleanmatchAntPathPattern(String[] patDirs, String[] strDirs, boolean isCaseSensitive) (package private) static booleanmatchAntPathPattern(String pattern, String str, String separator, boolean isCaseSensitive) (package private) static booleanmatchAntPathPattern(MatchPattern matchPattern, String str, String separator, boolean isCaseSensitive) (package private) static booleanmatchAntPathPatternStart(String[] patDirs, String str, String separator, boolean isCaseSensitive) (package private) static booleanmatchAntPathPatternStart(String pattern, String str, String separator, boolean isCaseSensitive) (package private) static booleanmatchAntPathPatternStart(MatchPattern pattern, String str, String separator, boolean isCaseSensitive) static booleanTests whether or not a given path matches a given pattern.static booleanTests whether or not a given path matches a given pattern.static booleanstatic booleanmatchPatternStart(String pattern, String str) Tests whether or not a given path matches the start of a given pattern up to the first "**".static booleanmatchPatternStart(String pattern, String str, boolean isCaseSensitive) Tests whether or not a given path matches the start of a given pattern up to the first "**".static StringremoveWhitespace(String input) "Flattens" a string by removing all whitespace (space, tab, linefeed, carriage return, and formfeed).private static booleanseparatorPatternStartSlashMismatch(String pattern, String str, String separator) private static booleanseparatorPatternStartSlashMismatch(MatchPattern matchPattern, String str, String separator) private static String[]tokenizePathToString(String path, String separator)
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Field Details
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PATTERN_HANDLER_PREFIX
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PATTERN_HANDLER_SUFFIX
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REGEX_HANDLER_PREFIX
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ANT_HANDLER_PREFIX
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instance
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Constructor Details
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SelectorUtils
private SelectorUtils()Private Constructor
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Method Details
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getInstance
Retrieves the manager of the Singleton. -
matchPatternStart
Tests whether or not a given path matches the start of a given pattern up to the first "**".
This is not a general purpose test and should only be used if you can live with false positives. For example,
pattern=**\aandstr=bwill yieldtrue.- Parameters:
pattern- The pattern to match against. Must not benull.str- The path to match, as a String. Must not benull.- Returns:
- whether or not a given path matches the start of a given pattern up to the first "**".
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matchPatternStart
Tests whether or not a given path matches the start of a given pattern up to the first "**".
This is not a general purpose test and should only be used if you can live with false positives. For example,
pattern=**\aandstr=bwill yieldtrue.- Parameters:
pattern- The pattern to match against. Must not benull.str- The path to match, as a String. Must not benull.isCaseSensitive- Whether or not matching should be performed case sensitively.- Returns:
- whether or not a given path matches the start of a given pattern up to the first "**".
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isAntPrefixedPattern
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matchAntPathPatternStart
static boolean matchAntPathPatternStart(MatchPattern pattern, String str, String separator, boolean isCaseSensitive) -
matchAntPathPatternStart
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separatorPatternStartSlashMismatch
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separatorPatternStartSlashMismatch
private static boolean separatorPatternStartSlashMismatch(MatchPattern matchPattern, String str, String separator) -
matchAntPathPatternStart
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matchPath
Tests whether or not a given path matches a given pattern.- Parameters:
pattern- The pattern to match against. Must not benull.str- The path to match, as a String. Must not benull.- Returns:
trueif the pattern matches against the string, orfalseotherwise.
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matchPath
Tests whether or not a given path matches a given pattern.- Parameters:
pattern- The pattern to match against. Must not benull.str- The path to match, as a String. Must not benull.isCaseSensitive- Whether or not matching should be performed case sensitively.- Returns:
trueif the pattern matches against the string, orfalseotherwise.
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matchPath
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isRegexPrefixedPattern
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matchAntPathPattern
static boolean matchAntPathPattern(MatchPattern matchPattern, String str, String separator, boolean isCaseSensitive) -
matchAntPathPattern
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matchAntPathPattern
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matchAntPathPattern
static boolean matchAntPathPattern(char[][] patDirs, char[][] strDirs, boolean isCaseSensitive) -
isDoubleStar
private static boolean isDoubleStar(char[] patDir) -
match
Tests whether or not a string matches against a pattern. The pattern may contain two special characters:
'*' means zero or more characters
'?' means one and only one character- Parameters:
pattern- The pattern to match against. Must not benull.str- The string which must be matched against the pattern. Must not benull.- Returns:
trueif the string matches against the pattern, orfalseotherwise.
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match
Tests whether or not a string matches against a pattern. The pattern may contain two special characters:
'*' means zero or more characters
'?' means one and only one character- Parameters:
pattern- The pattern to match against. Must not benull.str- The string which must be matched against the pattern. Must not benull.isCaseSensitive- Whether or not matching should be performed case sensitively.- Returns:
trueif the string matches against the pattern, orfalseotherwise.
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match
public static boolean match(char[] patArr, char[] strArr, boolean isCaseSensitive) -
equals
private static boolean equals(char c1, char c2, boolean isCaseSensitive) Tests whether two characters are equal. -
tokenizePathToString
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isOutOfDate
Returns dependency information on these two files. If src has been modified later than target, it returns true. If target doesn't exist, it likewise returns true. Otherwise, target is newer than src and is not out of date, thus the method returns false. It also returns false if the src file doesn't even exist, since how could the target then be out of date.- Parameters:
src- the original filetarget- the file being compared againstgranularity- the amount in seconds of slack we will give in determining out of dateness- Returns:
- whether the target is out of date
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removeWhitespace
"Flattens" a string by removing all whitespace (space, tab, linefeed, carriage return, and formfeed). This uses StringTokenizer and the default set of tokens as documented in the single argument constructor.- Parameters:
input- a String to remove all whitespace.- Returns:
- a String that has had all whitespace removed.
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