Package org.apache.commons.io.filefilter
Class HiddenFileFilter
- java.lang.Object
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- org.apache.commons.io.filefilter.AbstractFileFilter
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- org.apache.commons.io.filefilter.HiddenFileFilter
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- All Implemented Interfaces:
FileFilter
,FilenameFilter
,Serializable
,FileVisitor<Path>
,PathFilter
,PathVisitor
,IOFileFilter
public class HiddenFileFilter extends AbstractFileFilter implements Serializable
This filter acceptsFile
s that are hidden.Example, showing how to print out a list of the current directory's hidden files:
Using Classic IO
File dir = new File("."); String[] files = dir.list(HiddenFileFilter.HIDDEN); for (String file : files) { System.out.println(file); }
Example, showing how to print out a list of the current directory's visible (i.e. not hidden) files:
File dir = new File("."); String[] files = dir.list(HiddenFileFilter.VISIBLE); for (String file : files) { System.out.println(file); }
Using NIO
final Path dir = Paths.get(""); final AccumulatorPathVisitor visitor = AccumulatorPathVisitor.withLongCounters(HiddenFileFilter.HIDDEN); // // 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());
- Since:
- 1.3
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static IOFileFilter
HIDDEN
Singleton instance of hidden filterstatic IOFileFilter
VISIBLE
Singleton instance of visible filter-
Fields inherited from interface org.apache.commons.io.filefilter.IOFileFilter
EMPTY_STRING_ARRAY
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
accept(File file)
Checks to see if the file is hidden.FileVisitResult
accept(Path file, BasicFileAttributes attributes)
Checks to see if the file is hidden.-
Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter
accept, postVisitDirectory, preVisitDirectory, toString, visitFile, visitFileFailed
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Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.commons.io.filefilter.IOFileFilter
and, negate, or
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Field Detail
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HIDDEN
public static final IOFileFilter HIDDEN
Singleton instance of hidden filter
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VISIBLE
public static final IOFileFilter VISIBLE
Singleton instance of visible filter
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Method Detail
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accept
public boolean accept(File file)
Checks to see if the file is hidden.- Specified by:
accept
in interfaceFileFilter
- Specified by:
accept
in interfaceIOFileFilter
- Overrides:
accept
in classAbstractFileFilter
- Parameters:
file
- the File to check- Returns:
true
if the file is hidden, otherwisefalse
.
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accept
public FileVisitResult accept(Path file, BasicFileAttributes attributes)
Checks to see if the file is hidden.- Specified by:
accept
in interfaceIOFileFilter
- Specified by:
accept
in interfacePathFilter
- Parameters:
file
- the File to checkattributes
- the file's basic attributes (TODO may be null).- Returns:
true
if the file is hidden, otherwisefalse
.- Since:
- 2.9.0
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