Class Utils

java.lang.Object

com.blackrook.fs.struct.Utils

public final class Utils
extends Object

Utility methods.

Author:

Matthew Tropiano

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static void	close(AutoCloseable c)	Attempts to close an AutoCloseable object.
static boolean	createPath(String path)	Creates the necessary directories for a file path.
static boolean	createPathForFile(File file)	Creates the necessary directories for a file path.
static boolean	createPathForFile(String path)	Creates the necessary directories for a file path.
static int	relay(InputStream in, OutputStream out)	Reads from an input stream, reading in a consistent set of data and writing it to the output stream.
static int	relay(InputStream in, OutputStream out, int bufferSize)	Reads from an input stream, reading in a consistent set of data and writing it to the output stream.
static int	relay(InputStream in, OutputStream out, int bufferSize, int maxLength)	Reads from an input stream, reading in a consistent set of data and writing it to the output stream.

Methods inherited from class Object

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

Constructor Details

Utils

public Utils()

Method Details

createPathForFile

public static boolean createPathForFile(File file)

Creates the necessary directories for a file path.

Parameters:

file - the abstract file path.

Returns:

true if the paths were made (or exists), false otherwise.

createPathForFile

public static boolean createPathForFile(String path)

Creates the necessary directories for a file path.

Parameters:

path - the abstract path.

Returns:

true if the paths were made (or exists), false otherwise.

createPath

public static boolean createPath(String path)

Creates the necessary directories for a file path.

Parameters:

path - the abstract path.

Returns:

true if the paths were made (or exists), false otherwise.

relay

public static int relay(InputStream in,
 OutputStream out)
                 throws IOException

Reads from an input stream, reading in a consistent set of data and writing it to the output stream. The read/write is buffered so that it does not bog down the OS's other I/O requests. This method finishes when the end of the source stream is reached. Note that this may block if the input stream is a type of stream that will block if the input stream blocks for additional input. This method is thread-safe.

Parameters:

in - the input stream to grab data from.

out - the output stream to write the data to.

Returns:

the total amount of bytes relayed.

Throws:

IOException - if a read or write error occurs.

relay

public static int relay(InputStream in,
 OutputStream out,
 int bufferSize)
                 throws IOException

Reads from an input stream, reading in a consistent set of data and writing it to the output stream. The read/write is buffered so that it does not bog down the OS's other I/O requests. This method finishes when the end of the source stream is reached. Note that this may block if the input stream is a type of stream that will block if the input stream blocks for additional input. This method is thread-safe.

Parameters:

in - the input stream to grab data from.

out - the output stream to write the data to.

bufferSize - the buffer size for the I/O. Must be > 0.

Returns:

the total amount of bytes relayed.

Throws:

IOException - if a read or write error occurs.

relay

public static int relay(InputStream in,
 OutputStream out,
 int bufferSize,
 int maxLength)
                 throws IOException

Reads from an input stream, reading in a consistent set of data and writing it to the output stream. The read/write is buffered so that it does not bog down the OS's other I/O requests. This method finishes when the end of the source stream is reached. Note that this may block if the input stream is a type of stream that will block if the input stream blocks for additional input. This method is thread-safe.

Parameters:

in - the input stream to grab data from.

out - the output stream to write the data to.

bufferSize - the buffer size for the I/O. Must be > 0.

maxLength - the maximum amount of bytes to relay, or a value < 0 for no max.

Returns:

the total amount of bytes relayed.

Throws:

IOException - if a read or write error occurs.

close

public static void close(AutoCloseable c)

Attempts to close an AutoCloseable object. If the object is null, this does nothing.

Parameters:

c - the reference to the AutoCloseable object.