Package org.apache.commons.io.filefilter

Class SuffixFileFilter

java.lang.Object

org.apache.commons.io.filefilter.AbstractFileFilter

org.apache.commons.io.filefilter.SuffixFileFilter

All Implemented Interfaces:

FileFilter, FilenameFilter, Serializable, IOFileFilter

public class SuffixFileFilter
extends AbstractFileFilter
implements Serializable

Filters files based on the suffix (what the file name ends with). This is used in retrieving all the files of a particular type.

For example, to retrieve and print all *.java files in the current directory:

 File dir = new File(".");
 String[] files = dir.list( new SuffixFileFilter(".java") );
 for (int i = 0; i < files.length; i++) {
     System.out.println(files[i]);
 }
 

Since:

1.0

See Also:

FileFilterUtils.suffixFileFilter(String), FileFilterUtils.suffixFileFilter(String, IOCase), Serialized Form

Field Summary

Fields inherited from interface org.apache.commons.io.filefilter.IOFileFilter

EMPTY_STRING_ARRAY

Constructor Summary

Constructors

Constructor	Description
SuffixFileFilter(String suffix)	Constructs a new Suffix file filter for a single extension.
SuffixFileFilter(String... suffixes)	Constructs a new Suffix file filter for an array of suffixes.
SuffixFileFilter(String[] suffixes, IOCase caseSensitivity)	Constructs a new Suffix file filter for an array of suffixes specifying case-sensitivity.
SuffixFileFilter(String suffix, IOCase caseSensitivity)	Constructs a new Suffix file filter for a single extension specifying case-sensitivity.
SuffixFileFilter(List<String> suffixes)	Constructs a new Suffix file filter for a list of suffixes.
SuffixFileFilter(List<String> suffixes, IOCase caseSensitivity)	Constructs a new Suffix file filter for a list of suffixes specifying case-sensitivity.

Method Summary

Modifier and Type	Method	Description
boolean	accept(File file)	Checks to see if the file name ends with the suffix.
boolean	accept(File file, String name)	Checks to see if the file name ends with the suffix.
String	toString()	Provide a String representation of this file filter.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SuffixFileFilter

public SuffixFileFilter(String suffix)

Constructs a new Suffix file filter for a single extension.

Parameters:

suffix - the suffix to allow, must not be null

Throws:

IllegalArgumentException - if the suffix is null

SuffixFileFilter

public SuffixFileFilter(String suffix,
                        IOCase caseSensitivity)

Constructs a new Suffix file filter for a single extension specifying case-sensitivity.

Parameters:

suffix - the suffix to allow, must not be null

caseSensitivity - how to handle case sensitivity, null means case-sensitive

Throws:

IllegalArgumentException - if the suffix is null

Since:

1.4

SuffixFileFilter

public SuffixFileFilter(String... suffixes)

Constructs a new Suffix file filter for an array of suffixes.

The array is not cloned, so could be changed after constructing the instance. This would be inadvisable however.

Parameters:

suffixes - the suffixes to allow, must not be null

Throws:

IllegalArgumentException - if the suffix array is null

SuffixFileFilter

public SuffixFileFilter(String[] suffixes,
                        IOCase caseSensitivity)

Constructs a new Suffix file filter for an array of suffixes specifying case-sensitivity.

Parameters:

suffixes - the suffixes to allow, must not be null

caseSensitivity - how to handle case sensitivity, null means case-sensitive

Throws:

IllegalArgumentException - if the suffix array is null

Since:

1.4

SuffixFileFilter

public SuffixFileFilter(List<String> suffixes)

Constructs a new Suffix file filter for a list of suffixes.

Parameters:

suffixes - the suffixes to allow, must not be null

Throws:

IllegalArgumentException - if the suffix list is null

ClassCastException - if the list does not contain Strings

SuffixFileFilter

public SuffixFileFilter(List<String> suffixes,
                        IOCase caseSensitivity)

Constructs a new Suffix file filter for a list of suffixes specifying case-sensitivity.

Parameters:

suffixes - the suffixes to allow, must not be null

caseSensitivity - how to handle case sensitivity, null means case-sensitive

Throws:

IllegalArgumentException - if the suffix list is null

ClassCastException - if the list does not contain Strings

Since:

1.4

Method Detail

accept

public boolean accept(File file)

Checks to see if the file name ends with the suffix.

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 file name ends with one of our suffixes

accept

public boolean accept(File file,
                      String name)

Checks to see if the file name ends with the suffix.

Specified by:

accept in interface FilenameFilter

Specified by:

accept in interface IOFileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File directory

name - the file name

Returns:

true if the file name ends with one of our suffixes

toString

public String toString()

Provide a String representation of this file filter.

Overrides:

toString in class AbstractFileFilter

Returns:

a String representation