Extensions for java.io.File
bufferedReader
Returns a new BufferedReader for reading the content of this file.
fun
File
.
bufferedReader
(
charset
:
Charset
=
Charsets.UTF_8
,
bufferSize
:
Int
=
DEFAULT_BUFFER_SIZE
)
:
BufferedReader
bufferedWriter
Returns a new BufferedWriter for writing the content of this file.
fun
File
.
bufferedWriter
(
charset
:
Charset
=
Charsets.UTF_8
,
bufferSize
:
Int
=
DEFAULT_BUFFER_SIZE
)
:
BufferedWriter
copyRecursively
Copies this file with all its children to the specified destination target path. If some directories on the way to the destination are missing, then they will be created.
fun
File
.
copyRecursively
(
target
:
File
,
overwrite
:
Boolean
=
false
,
onError
:
(
File
,
IOException
)
->
OnErrorAction
=
{ _, exception -> throw exception }
)
:
Boolean
deleteRecursively
Delete this file with all its children. Note that if this operation fails then partial deletion may have taken place.
fun
File
.
deleteRecursively
(
)
:
Boolean
endsWith
Determines whether this file path ends with the path of other file.
Determines whether this file belongs to the same root as
other
and ends with all components of
other
in the same order.
So if
other
has N components, last N components of
this
must be the same as in
other
.
For relative
other
,
this
can belong to any root.
fun
File
.
endsWith
(
other
:
String
)
:
Boolean
extension
Returns the extension of this file (not including the dot), or an empty string if it doesn't have one.
val
File
.
extension
:
String
forEachBlock
inputStream
Constructs a new FileInputStream of this file and returns it as a result.
fun
File
.
inputStream
(
)
:
FileInputStream
isRooted
Determines whether this file has a root or it represents a relative path.
val
File
.
isRooted
:
Boolean
nameWithoutExtension
Returns file's name without an extension.
val
File
.
nameWithoutExtension
:
String
outputStream
Constructs a new FileOutputStream of this file and returns it as a result.
fun
File
.
outputStream
(
)
:
FileOutputStream
printWriter
Returns a new PrintWriter for writing the content of this file.
fun
File
.
printWriter
(
charset
:
Charset
=
Charsets.UTF_8
)
:
PrintWriter
reader
Returns a new FileReader for reading the content of this file.
fun
File
.
reader
(
charset
:
Charset
=
Charsets.UTF_8
)
:
InputStreamReader
resolve
Adds
relative
file to this, considering this as a directory.
If
relative
has a root,
relative
is returned back.
For instance,
File("/foo/bar").resolve(File("gav"))
is
File("/foo/bar/gav")
.
This function is complementary with
relativeTo
,
so
f.resolve(g.relativeTo(f)) == g
should be always
true
except for different roots case.
resolveSibling
startsWith
walk
Gets a sequence for visiting this directory and all its content.
fun
File
.
walk
(
direction
:
FileWalkDirection
=
FileWalkDirection.TOP_DOWN
)
:
FileTreeWalk
walkBottomUp
Gets a sequence for visiting this directory and all its content in bottom-up order. Depth-first search is used and directories are visited after all their files.
fun
File
.
walkBottomUp
(
)
:
FileTreeWalk
walkTopDown
Gets a sequence for visiting this directory and all its content in top-down order. Depth-first search is used and directories are visited before all their files.
fun
File
.
walkTopDown
(
)
:
FileTreeWalk
writer
Returns a new FileWriter for writing the content of this file.
fun
File
.
writer
(
charset
:
Charset
=
Charsets.UTF_8
)
:
OutputStreamWriter