Class IOUtils

java.lang.Object

org.apache.xmlgraphics.util.io.IOUtils

public final class IOUtils
extends Object

Utility class providing convenience methods for I/O operations.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	IOUtils()

Method Summary

Modifier and Type	Method	Description
static void	closeQuietly(Closeable closeable)	Closes a Closeable object quietly, suppressing any exceptions that might occur during the close operation.
static long	copy(InputStream input, OutputStream output)	Copies all bytes from the provided input stream to the given output stream.
static byte[]	toByteArray(InputStream input)	Converts the contents of the provided InputStream into a byte array.
static String	toString(Reader reader)	Converts the contents of the provided Reader into a String.

Methods inherited from class Object

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

Constructor Details

IOUtils

private IOUtils()

Method Details

copy

public static long copy(InputStream input,
 OutputStream output)
                 throws IOException

Copies all bytes from the provided input stream to the given output stream. The method operates using a buffer and is useful for transferring data between streams without modifying the contents.

Parameters:

input - the InputStream to read data from, must not be null

output - the OutputStream to write data to, must not be null

Returns:

the total number of bytes copied

Throws:

IOException - if an I/O error occurs during reading or writing

toByteArray

public static byte[] toByteArray(InputStream input)
                          throws IOException

Converts the contents of the provided InputStream into a byte array. This method reads all the data from the InputStream and writes it into a ByteArrayOutputStream, which is then converted to a byte array.

Parameters:

input - the InputStream to read data from, must not be null

Returns:

a byte array containing all the data read from the InputStream

Throws:

IOException - if an I/O error occurs while reading from the InputStream

toString

public static String toString(Reader reader)
                       throws IOException

Converts the contents of the provided Reader into a String. This method reads characters from the Reader into a buffer and then appends them to a StringBuilder, which is returned as a String.

Parameters:

reader - the Reader to read data from, must not be null

Returns:

a String containing all the characters read from the Reader

Throws:

IOException - if an I/O error occurs while reading from the Reader

closeQuietly

public static void closeQuietly(Closeable closeable)

Closes a Closeable object quietly, suppressing any exceptions that might occur during the close operation. If the provided Closeable is null, this method does nothing.

Parameters:

closeable - the Closeable object to close; may be null.