Created
June 6, 2017 19:59
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import java.io.*; | |
import java.nio.file.*; | |
import java.nio.file.attribute.*; | |
import static java.nio.file.FileVisitOption.*; | |
import java.util.*; | |
public class Find { | |
public static class Finder | |
extends SimpleFileVisitor<Path> { | |
private final PathMatcher matcher; | |
private int numMatches = 0; | |
Finder(String pattern) { | |
matcher = FileSystems.getDefault() | |
.getPathMatcher("glob:" + pattern); | |
} | |
//Pattern ile dosyayı karşılaştır | |
//Eşleşiyorsa yazdır. | |
void find(Path file) { | |
Path name = file.getFileName(); | |
if (name != null && matcher.matches(name)) { | |
numMatches++; | |
System.out.println(file); | |
} | |
} | |
// Kaç dosya eşleşti? | |
void done() { | |
System.out.println("Matched: " | |
+ numMatches); | |
} | |
//Her dosyada | |
//eşleştirme metodunu çağır. | |
@Override | |
public FileVisitResult visitFile(Path file, | |
BasicFileAttributes attrs) { | |
find(file); | |
return FileVisitResult.CONTINUE; | |
} | |
// Her directoryde eşleştirme metodunu çağır. | |
@Override | |
public FileVisitResult preVisitDirectory(Path dir, | |
BasicFileAttributes attrs) { | |
find(dir); | |
return FileVisitResult.CONTINUE; | |
} | |
@Override | |
public FileVisitResult visitFileFailed(Path file, | |
IOException exc) { | |
System.err.println(exc); | |
return FileVisitResult.CONTINUE; | |
} | |
} | |
public static void main(String[] args) | |
throws IOException { | |
Path startingDir = Paths.get("D:/File"); | |
System.out.println("F ile veya TXT ile başlayan dosyalar :"); | |
String pattern ="{F*,TXT*}" ; | |
Finder finder = new Finder(pattern); | |
Files.walkFileTree(startingDir, finder); | |
finder.done(); | |
System.out.println("---------------"); | |
System.out.println("İsminde 0,1,2,3 bulunduran dosyalar :"); | |
String pattern2 ="{*[0-3]*}"; | |
Finder finder2 = new Finder(pattern2); | |
Files.walkFileTree(startingDir, finder2); | |
finder2.done(); | |
System.out.println("---------------"); | |
System.out.println("A ile başlayıp devamında en az 1 karakter içeren ve txt ile biten dosyalar: "); | |
String pattern3 = "A?*.txt"; | |
Finder finder3 = new Finder(pattern3); | |
Files.walkFileTree(startingDir,finder3); | |
finder3.done(); | |
} | |
} |
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