de.mklinger.micro.streamcopy

Class StreamCopy

java.lang.Object

de.mklinger.micro.streamcopy.StreamCopy

public class StreamCopy
extends Object

Stream copy utility.

The code was taken from commons-io:commons-io:2.6 IOUtils and stripped down to the minimum.

Field Summary

Fields

Modifier and Type	Field and Description
static int	EOF Represents the end-of-file (or stream).

Method Summary

Modifier and Type	Method and Description
static long	copy(InputStream input, OutputStream output) Copies bytes from a InputStream to an OutputStream.
static long	copy(InputStream input, OutputStream output, int bufferSize) Copies bytes from an InputStream to an OutputStream using an internal buffer of the given size.
static byte[]	toByteArray(InputStream in) Copies bytes from a InputStream to a new byte array.
static String	toString(InputStream in, Charset charset) Copies bytes from a InputStream to a new String using the given Charset.

Methods inherited from class java.lang.Object

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

Field Detail

EOF

public static final int EOF

Represents the end-of-file (or stream).

Since:

2.5 (made public)

See Also:

Constant Field Values

Method Detail

copy

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

Copies bytes from a InputStream to an OutputStream.

This method buffers the input internally, so there is no need to use a BufferedInputStream.

The buffer size is given by DEFAULT_BUFFER_SIZE.

Parameters:

input - the InputStream to read from

output - the OutputStream to write to

Returns:

the number of bytes copied

Throws:

NullPointerException - if the input or output is null

IOException - if an I/O error occurs

copy

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

Copies bytes from an InputStream to an OutputStream using an internal buffer of the given size.

This method buffers the input internally, so there is no need to use a BufferedInputStream.

Parameters:

input - the InputStream to read from

output - the OutputStream to write to

bufferSize - the bufferSize used to copy from the input to the output

Returns:

the number of bytes copied

Throws:

NullPointerException - if the input or output is null

IOException - if an I/O error occurs

toByteArray

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

Copies bytes from a InputStream to a new byte array.

Parameters:

input - the InputStream to read from

Returns:

the byte array

Throws:

NullPointerException - if the input is null

IOException - if an I/O error occurs

toString

public static String toString(InputStream in,
                              Charset charset)
                       throws IOException

Copies bytes from a InputStream to a new String using the given Charset.

Parameters:

input - the InputStream to read from

Returns:

the String

Throws:

NullPointerException - if the input is null

IOException - if an I/O error occurs