Package org.apache.commons.vfs2.filter
Class AgeFileFilter
- java.lang.Object
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- org.apache.commons.vfs2.filter.AgeFileFilter
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- All Implemented Interfaces:
java.io.Serializable
,FileFilter
public class AgeFileFilter extends java.lang.Object implements FileFilter, java.io.Serializable
Filters files based on a cutoff time, can filter either newer files or files equal to or older.For example, to print all files and directories in the current directory older than one day:
FileSystemManager fsManager = VFS.getManager(); FileObject dir = fsManager.toFileObject(new File(".")); // We are interested in files older than one day long cutoff = System.currentTimeMillis() - (24 * 60 * 60 * 1000); AgeFileFilter filter = new AgeFileFilter(cutoff); FileObject[] files = dir.findFiles(new FileFilterSelector(filter)); for (int i = 0; i < files.length; i++) { System.out.println(files[i]); }
- Since:
- 2.4
- Author:
- This code was originally ported from Apache Commons IO File Filter
- See Also:
- "https://commons.apache.org/proper/commons-io/", Serialized Form
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Constructor Summary
Constructors Constructor Description AgeFileFilter(long cutoff)
Constructs a new age file filter for files equal to or older than a certain cutoff.AgeFileFilter(long cutoff, boolean acceptOlder)
Constructs a new age file filter for files on any one side of a certain cutoff.AgeFileFilter(java.util.Date cutoffDate)
Constructs a new age file filter for files older than (at or before) a certain cutoff date.AgeFileFilter(java.util.Date cutoffDate, boolean acceptOlder)
Constructs a new age file filter for files on any one side of a certain cutoff date.AgeFileFilter(FileObject cutoffReference)
Constructs a new age file filter for files older than (at or before) a certain File (whose last modification time will be used as reference).AgeFileFilter(FileObject cutoffReference, boolean acceptOlder)
Constructs a new age file filter for files on any one side of a certain File (whose last modification time will be used as reference).
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
accept(FileSelectInfo fileInfo)
Checks to see if the last modification of the file matches cutoff favorably.java.lang.String
toString()
Provide a String representation of this file filter.
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Constructor Detail
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AgeFileFilter
public AgeFileFilter(java.util.Date cutoffDate)
Constructs a new age file filter for files older than (at or before) a certain cutoff date.- Parameters:
cutoffDate
- the threshold age of the files
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AgeFileFilter
public AgeFileFilter(java.util.Date cutoffDate, boolean acceptOlder)
Constructs a new age file filter for files on any one side of a certain cutoff date.- Parameters:
cutoffDate
- the threshold age of the filesacceptOlder
- if true, older files (at or before the cutoff) are accepted, else newer ones (after the cutoff).
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AgeFileFilter
public AgeFileFilter(FileObject cutoffReference) throws FileSystemException
Constructs a new age file filter for files older than (at or before) a certain File (whose last modification time will be used as reference).- Parameters:
cutoffReference
- the file whose last modification time is used as the threshold age of the files- Throws:
FileSystemException
- Error reading the last modification time from the reference file object.
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AgeFileFilter
public AgeFileFilter(FileObject cutoffReference, boolean acceptOlder) throws FileSystemException
Constructs a new age file filter for files on any one side of a certain File (whose last modification time will be used as reference).- Parameters:
cutoffReference
- the file whose last modification time is used as the threshold age of the filesacceptOlder
- if true, older files (at or before the cutoff) are accepted, else newer ones (after the cutoff).- Throws:
FileSystemException
- Error reading the last modification time from the reference file object.
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AgeFileFilter
public AgeFileFilter(long cutoff)
Constructs a new age file filter for files equal to or older than a certain cutoff.- Parameters:
cutoff
- the threshold age of the files
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AgeFileFilter
public AgeFileFilter(long cutoff, boolean acceptOlder)
Constructs a new age file filter for files on any one side of a certain cutoff.- Parameters:
cutoff
- the threshold age of the filesacceptOlder
- if true, older files (at or before the cutoff) are accepted, else newer ones (after the cutoff).
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Method Detail
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accept
public boolean accept(FileSelectInfo fileInfo) throws FileSystemException
Checks to see if the last modification of the file matches cutoff favorably.If last modification time equals cutoff and newer files are required, file IS NOT selected. If last modification time equals cutoff and older files are required, file IS selected.
- Specified by:
accept
in interfaceFileFilter
- Parameters:
fileInfo
- the File to check- Returns:
- true if the file name matches
- Throws:
FileSystemException
- Thrown for file system errors.
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toString
public java.lang.String toString()
Provide a String representation of this file filter.- Overrides:
toString
in classjava.lang.Object
- Returns:
- a String representation
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