org.apache.commons.io.filefilter

Class WildcardFileFilter

  • All Implemented Interfaces:
    FileFilter, FilenameFilter, Serializable, IOFileFilter


    public class WildcardFileFilterextends AbstractFileFilterimplements Serializable
    Filters files using the supplied wildcards.

    This filter selects files and directories based on one or more wildcards. Testing is case-sensitive by default, but this can be configured.

    The wildcard matcher uses the characters '?' and '*' to represent a single or multiple wildcard characters. This is the same as often found on Dos/Unix command lines. The check is case-sensitive by default. See FilenameUtils.wildcardMatchOnSystem(java.lang.String, java.lang.String) for more information.

    For example:

     File dir = new File("."); FileFilter fileFilter = new WildcardFileFilter("*test*.java~*~"); File[] files = dir.listFiles(fileFilter); for (int i = 0; i < files.length; i++) {   System.out.println(files[i]); } 

    Since:
    1.3
    Version:
    $Id: WildcardFileFilter.java 1642757 2014-12-01 21:09:30Z sebb $
    See Also:
    Serialized Form
    • Constructor Detail

      • WildcardFileFilter

        public WildcardFileFilter(String wildcard)
        Construct a new case-sensitive wildcard filter for a single wildcard.
        Parameters:
        wildcard - the wildcard to match
        Throws:
        IllegalArgumentException - if the pattern is null
      • WildcardFileFilter

        public WildcardFileFilter(String wildcard,                  IOCase caseSensitivity)
        Construct a new wildcard filter for a single wildcard specifying case-sensitivity.
        Parameters:
        wildcard - the wildcard to match, not null
        caseSensitivity - how to handle case sensitivity, null means case-sensitive
        Throws:
        IllegalArgumentException - if the pattern is null
      • WildcardFileFilter

        public WildcardFileFilter(String[] wildcards)
        Construct a new case-sensitive wildcard filter for an array of wildcards.

        Parameters:
        wildcards - the array of wildcards to match
        Throws:
        IllegalArgumentException - if the pattern array is null
      • WildcardFileFilter

        public WildcardFileFilter(String[] wildcards,                  IOCase caseSensitivity)
        Construct a new wildcard filter for an array of wildcards specifying case-sensitivity.

        Parameters:
        wildcards - the array of wildcards to match, not null
        caseSensitivity - how to handle case sensitivity, null means case-sensitive
        Throws:
        IllegalArgumentException - if the pattern array is null
      • WildcardFileFilter

        public WildcardFileFilter(List<String> wildcards)
        Construct a new case-sensitive wildcard filter for a list of wildcards.
        Parameters:
        wildcards - the list of wildcards to match, not null
        Throws:
        IllegalArgumentException - if the pattern list is null
        ClassCastException - if the list does not contain Strings
      • WildcardFileFilter

        public WildcardFileFilter(List<String> wildcards,                  IOCase caseSensitivity)
        Construct a new wildcard filter for a list of wildcards specifying case-sensitivity.
        Parameters:
        wildcards - the list of wildcards to match, not null
        caseSensitivity - how to handle case sensitivity, null means case-sensitive
        Throws:
        IllegalArgumentException - if the pattern list is null
        ClassCastException - if the list does not contain Strings
    • Method Detail

      • accept

        public boolean accept(File dir,             String name)
        Checks to see if the filename matches one of the wildcards.
        Specified by:
        accept in interface FilenameFilter
        Specified by:
        accept in interface IOFileFilter
        Overrides:
        accept in class AbstractFileFilter
        Parameters:
        dir - the file directory (ignored)
        name - the filename
        Returns:
        true if the filename matches one of the wildcards
      • accept

        public boolean accept(File file)
        Checks to see if the filename matches one of the wildcards.
        Specified by:
        accept in interface FileFilter
        Specified by:
        accept in interface IOFileFilter
        Overrides:
        accept in class AbstractFileFilter
        Parameters:
        file - the file to check
        Returns:
        true if the filename matches one of the wildcards
      • toString

        public String toString()
        Provide a String representation of this file filter.
        Overrides:
        toString in class AbstractFileFilter
        Returns:
        a String representation

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