de.tobiasroeser.lambdatest

Class TempFile

java.lang.Object

de.tobiasroeser.lambdatest.TempFile

public class TempFile
extends Object

Utility methods to work with temporary files and directories.

Constructor Summary

Constructors

Constructor and Description
TempFile()

Method Summary

Modifier and Type	Method and Description
static <T> T	deleteAfter(File file, FunctionWithException<File,T> f) Apply f to the given file file and delete the file after the function returns.
static boolean	deleteRecursive(File file) Delete a file recursively.
static String	readFile(File file) Reads the given text file and return it’s contents.
static <T> T	withTempDir(FunctionWithException<File,T> f) Apply f to a newly created temporary directory which is deleted after f returns.
static void	withTempDirP(ProcedureWithException<File> p) Apply p to a newly created temporary directory which is deleted after p returns.
static <T> T	withTempFile(String content, FunctionWithException<File,T> f) Creates a new temporary file with the given content content.
static void	withTempFileP(String content, ProcedureWithException<File> p) Creates a new temporary file with the given content content.
static void	writeToFile(File file, String content)

Methods inherited from class java.lang.Object

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

Constructor Detail

TempFile

public TempFile()

Method Detail

withTempDir

public static <T> T withTempDir(FunctionWithException<File,T> f)
                         throws Exception

Apply f to a newly created temporary directory which is deleted after f returns.

Throws:

Exception

withTempDirP

public static void withTempDirP(ProcedureWithException<File> p)
                         throws Exception

Apply p to a newly created temporary directory which is deleted after p returns.

This is the procedural equivalent of withTempDir(FunctionWithException).

Throws:

Exception

withTempFile

public static <T> T withTempFile(String content,
                                 FunctionWithException<File,T> f)
                          throws Exception

Creates a new temporary file with the given content content. After execution of the given function f the file is deleted.

Throws:

Exception

withTempFileP

public static void withTempFileP(String content,
                                 ProcedureWithException<File> p)
                          throws Exception

Creates a new temporary file with the given content content. After execution of the given procedure p the file is deleted.

This is the procedural equivalent of withTempFile(String, FunctionWithException).

Throws:

Exception

writeToFile

public static void writeToFile(File file,
                               String content)
                        throws IOException

Throws:

IOException

readFile

public static String readFile(File file)
                       throws IOException

Reads the given text file and return it’s contents.

Parameters:

file - The text file.

Returns:

The text contents.

Throws:

IOException - In case the file is missing or can’t be read as text.

deleteAfter

public static <T> T deleteAfter(File file,
                                FunctionWithException<File,T> f)
                         throws Exception

Apply f to the given file file and delete the file after the function returns.

Throws:

Exception

deleteRecursive

public static boolean deleteRecursive(File file)

Delete a file recursively.

Returns:

true if the deletion was successful.