Package io.deephaven.util.files

Class FileHelper

java.lang.Object

io.deephaven.util.files.FileHelper

public class FileHelper
extends Object

Utility/helper methods for file operations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FileHelper.FileDeletionException	Give callers of deleteRecursivelyOnNFS(File, Pattern) a better exception to catch.

Method Summary

Modifier and Type	Method	Description
static boolean	deleteRecursivelyOnNFS(File trashFile, File fileToBeDeleted, @Nullable Pattern excludePattern)	Augment FileUtils.deleteRecursivelyOnNFS(File, File) with an exclude pattern.
static boolean	deleteRecursivelyOnNFS(File file, String excludePattern)	Augment FileUtils.deleteRecursivelyOnNFS(File) with an exclude pattern.
static boolean	deleteRecursivelyOnNFS(File file, Pattern excludePattern)	Augment FileUtils.deleteRecursivelyOnNFS(File) with an exclude pattern.
static String	getCanonicalForm(String path)	Get the canonical path for the given path string, converting IOExceptions to UncheckIOException.

Methods inherited from class java.lang.Object

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

Method Details

getCanonicalForm

public static String getCanonicalForm(String path)

Get the canonical path for the given path string, converting IOExceptions to UncheckIOException.

Parameters:

path - The file (as String) for which to get the canonical form.

Returns:

the canonical file string.

deleteRecursivelyOnNFS

public static boolean deleteRecursivelyOnNFS(File file,
 String excludePattern)

Augment FileUtils.deleteRecursivelyOnNFS(File) with an exclude pattern. Files matching the pattern will not be removed, nor will containing directories.

Parameters:

file - the file or folder to delete.

excludePattern - don't delete files or folders matching this pattern.

Returns:

true if any files were excluded (so caller will know if a directory is empty)

Throws:

FileHelper.FileDeletionException - on any errors moving/renaming/deleting files

deleteRecursivelyOnNFS

public static boolean deleteRecursivelyOnNFS(File file,
 Pattern excludePattern)

Augment FileUtils.deleteRecursivelyOnNFS(File) with an exclude pattern. Files matching the pattern will not be removed, nor will containing directories.

Parameters:

file - the file or folder to delete.

excludePattern - don't delete files or folders matching this pattern.

Returns:

true if any files were excluded (so caller will know if a directory is empty)

Throws:

FileHelper.FileDeletionException - on any errors moving/renaming/deleting files

deleteRecursivelyOnNFS

public static boolean deleteRecursivelyOnNFS(File trashFile,
 File fileToBeDeleted,
 @Nullable
 @Nullable Pattern excludePattern)

Augment FileUtils.deleteRecursivelyOnNFS(File, File) with an exclude pattern. Files matching the pattern will not be removed, nor will containing directories.

This is an implementation method for deleteRecursivelyOnNFS(File, String)

Parameters:

trashFile - Filename to move regular files to before deletion. .nfs files may be created in its parent directory.

fileToBeDeleted - File or directory at which to begin recursive deletion.

excludePattern - don't delete files or folders matching this pattern.

Returns:

true if any files were excluded (so caller will know if a directory is empty)

Throws:

FileHelper.FileDeletionException - on any errors moving/renaming/deleting files