Files

Copies a file from the source to the target path,

By default, the copy fails if the target file already exists or is a symbolic link.

Creates a new directory at the given path and creates all nonexistent parent directories beforehand.

Creates a new directory at the given path.

Deletes a file.

If the file is a directory then the directory must be empty for this action to succeed. This action will fail if the path doesn't exist.

Recursively delete a directory

Like delete, but will not fail when the path doesn't exist.

Creates a stream of Paths inside a directory.

Creates a stream of Paths inside a directory, filtering the results by the given predicate.

Creates a stream of Paths inside a directory which match the given glob.

Checks if a file exists.

Note that the result of this method is immediately outdated. If this method indicates the file exists then there is no guarantee that a subsequence access will succeed. Care should be taken when using this method in security sensitive applications.

Tests whether a file is a directory.

The options sequence may be used to indicate how symbolic links are handled for the case that the file is a symbolic link. By default, symbolic links are followed and the file attribute of the final target of the link is read. If the option NOFOLLOW_LINKS is present then symbolic links are not followed.

Where is it required to distinguish an I/O exception from the case that the file is not a directory then the file attributes can be read with the readAttributes method and the file type tested with the BasicFileAttributes.isDirectory() method.

Tests whether a file is a regular file with opaque content.

The options sequence may be used to indicate how symbolic links are handled for the case that the file is a symbolic link. By default, symbolic links are followed and the file attribute of the final target of the link is read. If the option NOFOLLOW_LINKS is present then symbolic links are not followed.

Where is it required to distinguish an I/O exception from the case that the file is not a regular file then the file attributes can be read with the readAttributes method and the file type tested with the BasicFileAttributes.isRegularFile() method.

Moves (or renames) a file from the source to the target path.

By default, the move fails if the target file already exists or is a symbolic link.

Creates a FileHandle for the file at the supplied Path.

Creates a FileHandle for the supplied FileChannel.

Get file permissions as set of PosixFilePermission.

Note: this will only work for POSIX supporting file systems.

Reads all data from the file at the specified java.nio.file.Path.

Returns a ReadCursor for the specified path. The READ option is added to the supplied flags.

Reads a range of data synchronously from the file at the specified java.nio.file.Path. start is inclusive, end is exclusive, so when start is 0 and end is 2, two bytes are read.

Set file permissions from set of PosixFilePermission.

Note: this will only work for POSIX supporting file systems.

Returns the size of a file (in bytes).

Returns an infinite stream of data from the file at the specified path. Starts reading from the specified offset and upon reaching the end of the file, polls every pollDuration for additional updates to the file.

Read operations are limited to emitting chunks of the specified chunk size but smaller chunks may occur.

If an error occurs while reading from the file, the overall stream fails.

Creates a Resource which can be used to create a temporary directory. The directory is created during resource allocation, and removed during its release.

Creates a Resource which can be used to create a temporary file. The file is created during resource allocation, and removed during its release.

Creates a stream of Paths contained in a given file tree. Depth is unlimited.

Creates a stream of Paths contained in a given file tree, respecting the supplied options. Depth is unlimited.

Creates a stream of Paths contained in a given file tree down to a given depth.

Watches a single path.

Alias for creating a watcher and watching the supplied path, releasing the watcher when the resulting stream is finalized.

Creates a Watcher for the default file system.

The watcher is returned as a resource. To use the watcher, lift the resource to a stream, watch or register 1 or more paths, and then return watcher.events().

Writes all data to the file at the specified java.nio.file.Path.

Adds the WRITE flag to any other OpenOption flags specified. By default, also adds the CREATE flag.

Returns a WriteCursor for the specified path.

The WRITE option is added to the supplied flags. If the APPEND option is present in flags, the offset is initialized to the current size of the file.

Returns a WriteCursor for the specified file handle.

If append is true, the offset is initialized to the current size of the file.

Writes all data to a sequence of files, each limited in size to limit.

The computePath operation is used to compute the path of the first file and every subsequent file. Typically, the next file should be determined by analyzing the current state of the filesystem -- e.g., by looking at all files in a directory and generating a unique name.

Returns a ReadCursor for the specified path.