edu.wisc.ssec.mcidasv.util

Class FileFinder.Finder

java.lang.Object

java.nio.file.SimpleFileVisitor<java.nio.file.Path>

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

All Implemented Interfaces:

java.nio.file.FileVisitor<java.nio.file.Path>

Enclosing class:

FileFinder

private static class FileFinder.Finder
extends java.nio.file.SimpleFileVisitor<java.nio.file.Path>

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

Field Summary

Fields

Modifier and Type	Field and Description
private java.nio.file.PathMatcher	matcher Pattern matcher.
private java.util.List<java.lang.String>	matches String representations of matching Paths.

Constructor Summary

Constructors

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

Method Summary

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

matcher

private final java.nio.file.PathMatcher matcher

Pattern matcher.

matches

private final java.util.List<java.lang.String> matches

String representations of matching Paths.

Constructor Detail

Finder

Finder(java.lang.String pattern)

Creates a new file searcher.

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

Parameters:

pattern - Pattern to match against.

Method Detail

find

void find(java.nio.file.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

java.util.List<java.lang.String> results()

Returns the matching paths as strings.

Returns:

List of the matching paths as String values.

visitFile

public java.nio.file.FileVisitResult visitFile(java.nio.file.Path file,
                                               java.nio.file.attribute.BasicFileAttributes attrs)

Invokes pattern matching method on the given file.

Specified by:

visitFile in interface java.nio.file.FileVisitor<java.nio.file.Path>

Overrides:

visitFile in class java.nio.file.SimpleFileVisitor<java.nio.file.Path>

Parameters:

file - File in question.

attrs - Attributes of dir. Not currently used.

Returns:

Always returns FileVisitResult.CONTINUE (for now).

preVisitDirectory

public java.nio.file.FileVisitResult preVisitDirectory(java.nio.file.Path dir,
                                                       java.nio.file.attribute.BasicFileAttributes attrs)

Invokes the pattern matching method on the given directory.

Specified by:

preVisitDirectory in interface java.nio.file.FileVisitor<java.nio.file.Path>

Overrides:

preVisitDirectory in class java.nio.file.SimpleFileVisitor<java.nio.file.Path>

Parameters:

dir - Directory in question.

attrs - Attributes of dir. Not currently used.

Returns:

Always returns FileVisitResult.CONTINUE (for now).

visitFileFailed

public java.nio.file.FileVisitResult visitFileFailed(java.nio.file.Path file,
                                                     java.io.IOException exc)

Handle file "visitation" errors.

Specified by:

visitFileFailed in interface java.nio.file.FileVisitor<java.nio.file.Path>

Overrides:

visitFileFailed in class java.nio.file.SimpleFileVisitor<java.nio.file.Path>

Parameters:

file - File that could not be "visited".

exc - Exception associated with "visit" to file.

Returns:

Always returns FileVisitResult.CONTINUE (for now).