org.apache.ratis.util

接口 FileUtils

public interface FileUtils

字段概要

字段

限定符和类型	字段和说明
static org.slf4j.Logger	LOG
static int	NUM_ATTEMPTS
static TimeDuration	SLEEP_TIME

方法概要

限定符和类型	方法和说明
static <T> T	attempt(CheckedSupplier<T,IOException> op, Supplier<?> name)
static void	createDirectories(File dir)
static void	createDirectories(Path dir)
static void	createDirectoriesDeleteExistingNonDirectory(File dir)
static void	createDirectoriesDeleteExistingNonDirectory(Path dir)
static OutputStream	createNewFile(Path p)
static void	delete(Path p) Use Files.delete(Path) to delete the given path.
static void	deleteFile(File f) The same as passing f.toPath() to delete(Path).
static boolean	deleteFileQuietly(File f) The same as passing f.toPath() to deletePathQuietly(Path).
static void	deleteFully(File f) The same as passing f.toPath() to deleteFully(Path).
static void	deleteFully(Path p) Delete fully the given path
static boolean	deletePathQuietly(Path p) Delete the given path quietly.
static void	move(File src, File dst)
static File	move(File src, String suffix) Move src to a new path, where the new path created by appending the given suffix to the src.
static void	move(Path src, Path dst)
static void	moveDirectory(Path source, Path dest) Moves the directory.
static void	truncateFile(File f, long target)

字段详细资料

LOG

static final org.slf4j.Logger LOG

NUM_ATTEMPTS

static final int NUM_ATTEMPTS

另请参阅:

常量字段值

SLEEP_TIME

static final TimeDuration SLEEP_TIME

方法详细资料

attempt

static <T> T attempt(CheckedSupplier<T,IOException> op,
                     Supplier<?> name)
              throws IOException

抛出:

IOException

truncateFile

static void truncateFile(File f,
                         long target)
                  throws IOException

抛出:

IOException

createNewFile

static OutputStream createNewFile(Path p)
                           throws IOException

抛出:

IOException

createDirectories

static void createDirectories(File dir)
                       throws IOException

抛出:

IOException

createDirectories

static void createDirectories(Path dir)
                       throws IOException

抛出:

IOException

createDirectoriesDeleteExistingNonDirectory

static void createDirectoriesDeleteExistingNonDirectory(File dir)
                                                 throws IOException

抛出:

IOException

createDirectoriesDeleteExistingNonDirectory

static void createDirectoriesDeleteExistingNonDirectory(Path dir)
                                                 throws IOException

抛出:

IOException

move

static void move(File src,
                 File dst)
          throws IOException

抛出:

IOException

move

static void move(Path src,
                 Path dst)
          throws IOException

抛出:

IOException

move

static File move(File src,
                 String suffix)
          throws IOException

Move src to a new path, where the new path created by appending the given suffix to the src.

返回:

the new file if rename succeeded; otherwise, return null.

抛出:

IOException

deleteFile

static void deleteFile(File f)
                throws IOException

The same as passing f.toPath() to delete(Path).

抛出:

IOException

moveDirectory

static void moveDirectory(Path source,
                          Path dest)
                   throws IOException

Moves the directory. If any file is locked, the exception is caught and logged and continues to other files.

参数:

source -

dest -

抛出:

IOException

deleteFileQuietly

static boolean deleteFileQuietly(File f)

The same as passing f.toPath() to deletePathQuietly(Path).

参数:

f - file to delete

返回:

true if the file is successfully deleted false otherwise

deletePathQuietly

static boolean deletePathQuietly(Path p)

Delete the given path quietly. Only print a debug message in case that there is an exception,

参数:

p - path to delete

返回:

true if the path is successfully deleted false otherwise

delete

static void delete(Path p)
            throws IOException

Use Files.delete(Path) to delete the given path. This method may print log messages using LOG.

抛出:

IOException

deleteFully

static void deleteFully(File f)
                 throws IOException

The same as passing f.toPath() to deleteFully(Path).

抛出:

IOException

deleteFully

static void deleteFully(Path p)
                 throws IOException

Delete fully the given path. (1) If it is a file, the file will be deleted. (2) If it is a directory, the directory and all its contents will be recursively deleted. If an exception is thrown, the directory may possibly be partially deleted.* (3) If it is a symlink, the symlink will be deleted but the symlink target will not be deleted.

抛出:

IOException