Package edu.wisc.ssec.mcidasv.util

Class FileFinder.Finder

java.lang.Object

java.nio.file.SimpleFileVisitor<Path>

edu.wisc.ssec.mcidasv.util.FileFinder.Finder

All Implemented Interfaces:

FileVisitor<Path>

Enclosing class:

FileFinder

private static class FileFinder.Finder
extends SimpleFileVisitor<Path>

Internal class used by the findFiles(...) methods to actually "walk" the directory tree.

Field Summary

Fields

Modifier and Type	Field	Description
private final PathMatcher	matcher	Pattern matcher.
private final List<String>	matches	String representations of matching Paths.

Constructor Summary

Constructors

Constructor	Description
Finder(String pattern)	Creates a new file searcher.

Method Summary

Modifier and Type	Method	Description
(package private) void	done()	Prints the total number of matches to standard out.
(package private) void	find(Path file)	Compare the given file or directory against the glob pattern.
FileVisitResult	preVisitDirectory(Path dir, BasicFileAttributes attrs)	Invokes the pattern matching method on the given directory.
(package private) List<String>	results()	Returns the matching paths as strings.
FileVisitResult	visitFile(Path file, BasicFileAttributes attrs)	Invokes pattern matching method on the given file.
FileVisitResult	visitFileFailed(Path file, IOException exc)	Handle file "visitation" errors.

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 Details

matcher

private final PathMatcher matcher

Pattern matcher.

matches

private final List<String> matches

String representations of matching Paths.

Constructor Details

Finder

Finder(String pattern)

Creates a new file searcher.

Please see FileSystem.getPathMatcher(String) for more details concerning patterns.

Parameters:

pattern - Pattern to match against.

Method Details

find

void find(Path file)

Compare the given file or directory against the glob pattern.

If file matches, it is added to matches.

Parameters:

file - File (or directory) to compare against the glob pattern.

See Also:

• results()

done

void done()

Prints the total number of matches to standard out.

results

List<String> results()

Returns the matching paths as strings.

Returns:

List of the matching paths as String values.

visitFile

public FileVisitResult visitFile(Path file,
 BasicFileAttributes attrs)

Invokes pattern matching method on the given file.

Specified by:

visitFile in interface FileVisitor<Path>

Overrides:

visitFile in class SimpleFileVisitor<Path>

Parameters:

file - File in question.

attrs - Attributes of dir. Not currently used.

Returns:

Always returns FileVisitResult.CONTINUE (for now).

preVisitDirectory

public FileVisitResult preVisitDirectory(Path dir,
 BasicFileAttributes attrs)

Invokes the pattern matching method on the given directory.

Specified by:

preVisitDirectory in interface FileVisitor<Path>

Overrides:

preVisitDirectory in class SimpleFileVisitor<Path>

Parameters:

dir - Directory in question.

attrs - Attributes of dir. Not currently used.

Returns:

Always returns FileVisitResult.CONTINUE (for now).

visitFileFailed

public FileVisitResult visitFileFailed(Path file,
 IOException exc)

Handle file "visitation" errors.

Specified by:

visitFileFailed in interface FileVisitor<Path>

Overrides:

visitFileFailed in class SimpleFileVisitor<Path>

Parameters:

file - File that could not be "visited".

exc - Exception associated with "visit" to file.

Returns:

Always returns FileVisitResult.CONTINUE (for now).