Recursively Listing All Files Below A Directory
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Simple iterator to iterate over all non-directory files the lie below a given directory. Demonstrates a use case for the FlatteningIterator snippet.
package playground.library.files;
import java.io.File;
import java.io.FileFilter;
import java.util.Arrays;
import java.util.Iterator;
import playground.library.functional.iterator.FlatteningIterator;
/**
* Iterates over all non-directory files contained in some subdirectory of the
* current one.
*
* @author david
*/
public class RecursiveFileListIterator implements Iterator
{
private final FlatteningIterator flatteningIterator;
public void remove() { }
public RecursiveFileListIterator(File file, FileFilter filter){
this.flatteningIterator = new FlatteningIterator(new FileIterator(file, filter)); }
public RecursiveFileListIterator(File file){
this(file, null);}
public boolean hasNext(){
return flatteningIterator.hasNext();}
public File next(){
return (File)flatteningIterator.next();}
/**
* Iterator to iterate over all the files contained in a directory. It returns
* a File object for non directories or a new FileIterator obejct for directories.
*/
private static class FileIterator implements Iterator
Listing (computer)
Directory
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