org.icij.extract

Class ScannerVisitor

java.lang.Object

java.nio.file.SimpleFileVisitor<Path>

org.icij.extract.ScannerVisitor

All Implemented Interfaces:

FileVisitor<Path>, Callable<Long>

public class ScannerVisitor
extends SimpleFileVisitor<Path>
implements Callable<Long>

Field Summary

Fields

Modifier and Type	Field and Description
static String	FOLLOW_SYMLINKS
static String	MAX_DEPTH

Constructor Summary

Constructors

Constructor and Description
ScannerVisitor(Path path, BlockingQueue<Path> queue, Options<String> options) Instantiate a new task for scanning the given path.

Method Summary

Modifier and Type	Method and Description
Long	call() Recursively walks the file tree of a directory.
FileVisitResult	preVisitDirectory(Path directory, BasicFileAttributes attributes)
FileVisitResult	visitFile(Path file, BasicFileAttributes attributes)
FileVisitResult	visitFileFailed(Path file, IOException e)
ScannerVisitor	withLatch(SealableLatch latch)
ScannerVisitor	withMonitor(Notifiable monitor)

Methods inherited from class java.nio.file.SimpleFileVisitor

postVisitDirectory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FOLLOW_SYMLINKS

public static final String FOLLOW_SYMLINKS

See Also:

Constant Field Values

MAX_DEPTH

public static final String MAX_DEPTH

See Also:

Constant Field Values

Constructor Detail

ScannerVisitor

public ScannerVisitor(Path path,
                      BlockingQueue<Path> queue,
                      Options<String> options)

Instantiate a new task for scanning the given path.

Parameters:

path - the path to scan

Method Detail

withMonitor

public ScannerVisitor withMonitor(Notifiable monitor)

withLatch

public ScannerVisitor withLatch(SealableLatch latch)

call

public Long call()
          throws Exception

Recursively walks the file tree of a directory. When hiswalking is finished or stopped by an exception, the latch is sealed and signalled.

Specified by:

call in interface Callable<Long>

Returns:

the path at which scanning started

Throws:

Exception

preVisitDirectory

public FileVisitResult preVisitDirectory(Path directory,
                                         BasicFileAttributes attributes)
                                  throws IOException

Specified by:

preVisitDirectory in interface FileVisitor<Path>

Overrides:

preVisitDirectory in class SimpleFileVisitor<Path>

Throws:

IOException

visitFile

public FileVisitResult visitFile(Path file,
                                 BasicFileAttributes attributes)
                          throws IOException

Specified by:

visitFile in interface FileVisitor<Path>

Overrides:

visitFile in class SimpleFileVisitor<Path>

Throws:

IOException

visitFileFailed

public FileVisitResult visitFileFailed(Path file,
                                       IOException e)
                                throws IOException

Specified by:

visitFileFailed in interface FileVisitor<Path>

Overrides:

visitFileFailed in class SimpleFileVisitor<Path>

Throws:

IOException