public class RegexFileFilter extends AbstractFileFilter implements Serializable
See java.util.regex.Pattern for regex matching rules.
e.g.
File dir = new File("."); FileFilter fileFilter = new RegexFileFilter("^.*[tT]est(-\\d+)?\\.java$"); File[] files = dir.listFiles(fileFilter); for (String file : files) { System.out.println(file); }
final Path dir = Paths.get(""); final AccumulatorPathVisitor visitor = AccumulatorPathVisitor.withLongCounters(new RegexFileFilter("^.*[tT]est(-\\d+)?\\.java$")); // // Walk one dir Files.walkFileTree(dir, Collections.emptySet(), 1, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getFileList()); // visitor.getPathCounters().reset(); // // Walk dir tree Files.walkFileTree(dir, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getDirList()); System.out.println(visitor.getFileList());
EMPTY_STRING_ARRAY
Constructor and Description |
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RegexFileFilter(Pattern pattern)
Constructs a new regular expression filter for a compiled regular expression
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RegexFileFilter(Pattern pattern,
Function<Path,String> pathToString)
Constructs a new regular expression filter for a compiled regular expression
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RegexFileFilter(String pattern)
Constructs a new regular expression filter.
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RegexFileFilter(String pattern,
int flags)
Constructs a new regular expression filter with the specified flags.
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RegexFileFilter(String pattern,
IOCase caseSensitivity)
Constructs a new regular expression filter with the specified flags case sensitivity.
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Modifier and Type | Method and Description |
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boolean |
accept(File dir,
String name)
Checks to see if the file name matches one of the regular expressions.
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FileVisitResult |
accept(Path path,
BasicFileAttributes attributes)
Checks to see if the file name matches one of the regular expressions.
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String |
toString()
Returns a debug string.
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accept, handle, postVisitDirectory, preVisitDirectory, visitFile, visitFileFailed
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
and, negate, or
public RegexFileFilter(Pattern pattern)
pattern
- regular expression to match.IllegalArgumentException
- if the pattern is null.public RegexFileFilter(Pattern pattern, Function<Path,String> pathToString)
pattern
- regular expression to match.pathToString
- How convert a path to a string.IllegalArgumentException
- if the pattern is null.public RegexFileFilter(String pattern)
pattern
- regular string expression to matchIllegalArgumentException
- if the pattern is nullpublic RegexFileFilter(String pattern, int flags)
pattern
- regular string expression to matchflags
- pattern flags - e.g. Pattern.CASE_INSENSITIVE
IllegalArgumentException
- if the pattern is nullpublic RegexFileFilter(String pattern, IOCase caseSensitivity)
pattern
- regular string expression to matchcaseSensitivity
- how to handle case sensitivity, null means case-sensitiveIllegalArgumentException
- if the pattern is nullpublic boolean accept(File dir, String name)
accept
in interface FilenameFilter
accept
in interface IOFileFilter
accept
in class AbstractFileFilter
dir
- the file directory (ignored)name
- the file namepublic FileVisitResult accept(Path path, BasicFileAttributes attributes)
accept
in interface PathFilter
accept
in interface IOFileFilter
path
- the pathattributes
- the path attributespublic String toString()
toString
in class AbstractFileFilter
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