Package org.openjdk.jmh.util

Class FileUtils

java.lang.Object

org.openjdk.jmh.util.FileUtils

public class FileUtils
extends Object

A utility class for File creation and manipulation.

Method Summary

Modifier and Type	Method	Description
static void	appendLines(File file, Collection<String> lines)
static void	copy(String src, String dst)
static String	createTempFileWithLines(String suffix, Iterable<String> lines)	Create a temporary file (see File.createTempFile(String, String)) and fill it with the given lines.
static File	extractFromResource(String name)	Helper method for extracting a given resource to File
static Collection<File>	getClasses(File root)
static void	purgeTemps()
static Collection<String>	readAllLines(File file)
static Collection<String>	readAllLines(InputStream stream)
static Collection<String>	readAllLines(Reader src)
static <T extends Flushable & Closeable> void	safelyClose(T obj)
static Collection<String>	tail(File file, int num)
static File	tempFile(String suffix)	Creates the temp file with given suffix.
static void	touch(String f)
static TempFile	weakTempFile(String suffix)	Creates the temp file, and retains it as long as the reference to it is reachable.
static void	writeLines(File file, Collection<String> lines)

Methods inherited from class java.lang.Object

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

Method Detail

weakTempFile

public static TempFile weakTempFile(String suffix)
                             throws IOException

Creates the temp file, and retains it as long as the reference to it is reachable.

Parameters:

suffix - suffix

Returns:

temp file

Throws:

IOException

purgeTemps

public static void purgeTemps()

tempFile

public static File tempFile(String suffix)
                     throws IOException

Creates the temp file with given suffix. The file would be removed on JVM exit, or when caller deletes the file itself.

Parameters:

suffix - suffix

Returns:

temporary file

Throws:

IOException

extractFromResource

public static File extractFromResource(String name)
                                throws IOException

Helper method for extracting a given resource to File

Parameters:

name - name of the resource

Returns:

a File pointing to the extracted resource

Throws:

IOException - if things go crazy

createTempFileWithLines

public static String createTempFileWithLines(String suffix,
                                             Iterable<String> lines)
                                      throws IOException

Create a temporary file (see File.createTempFile(String, String)) and fill it with the given lines.

Parameters:

suffix - file suffix File.createTempFile(String, String)

lines - to be written

Returns:

the temporary file absolute path

Throws:

IOException - on file creation error

tail

public static Collection<String> tail(File file,
                                      int num)
                               throws IOException

Throws:

IOException

readAllLines

public static Collection<String> readAllLines(Reader src)
                                       throws IOException

Throws:

IOException

readAllLines

public static Collection<String> readAllLines(File file)
                                       throws IOException

Throws:

IOException

readAllLines

public static Collection<String> readAllLines(InputStream stream)
                                       throws IOException

Throws:

IOException

writeLines

public static void writeLines(File file,
                              Collection<String> lines)
                       throws IOException

Throws:

IOException

appendLines

public static void appendLines(File file,
                               Collection<String> lines)
                        throws IOException

Throws:

IOException

getClasses

public static Collection<File> getClasses(File root)

copy

public static void copy(String src,
                        String dst)
                 throws IOException

Throws:

IOException

safelyClose

public static <T extends Flushable & Closeable> void safelyClose(T obj)

safelyClose

public static <T extends Closeable> void safelyClose(T obj)

touch

public static void touch(String f)
                  throws IOException

Throws:

IOException