Package org.apache.cxf.helpers

Class IOUtils

java.lang.Object

org.apache.cxf.helpers.IOUtils

public final class IOUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_BUFFER_SIZE
static final Charset	UTF8_CHARSET

Method Summary

Modifier and Type	Method	Description
static void	consume(InputStream in)
static void	consume(InputStream input, int atLeast)	Consumes at least the given number of bytes from the input stream
static int	copy(InputStream input, OutputStream output)
static int	copy(InputStream input, OutputStream output, int bufferSize)
static void	copy(Reader input, Writer output, int bufferSize)
static int	copyAndCloseInput(InputStream input, OutputStream output)
static int	copyAndCloseInput(InputStream input, OutputStream output, int bufferSize)
static void	copyAndCloseInput(Reader input, Writer output)
static void	copyAndCloseInput(Reader input, Writer output, int bufferSize)
static void	copyAtLeast(InputStream input, OutputStream output, int atLeast)	Copy at least the specified number of bytes from the input to the output or until the inputstream is finished.
static void	copyAtLeast(Reader input, Writer output, int atLeast)
static boolean	isEmpty(InputStream is)
static ByteArrayInputStream	loadIntoBAIS(InputStream in)	Load the InputStream into memory and return a ByteArrayInputStream that represents it.
static String	newStringFromBytes(byte[] bytes)	Use this function instead of new String(byte[]) to avoid surprises from non-standard default encodings.
static String	newStringFromBytes(byte[] bytes, int start, int length)	Use this function instead of new String(byte[], int, int) to avoid surprises from non-standard default encodings.
static String	newStringFromBytes(byte[] bytes, String charsetName)	Use this function instead of new String(byte[], String) to avoid surprises from non-standard default encodings.
static String	newStringFromBytes(byte[] bytes, String charsetName, int start, int length)	Use this function instead of new String(byte[], int, int, String) to avoid surprises from non-standard default encodings.
static InputStream	nullOrNotEmptyStream(InputStream is)	Checks if input stream is empty.
static byte[]	readBytesFromStream(InputStream in)
static String	readStringFromStream(InputStream in)
static String	toString(InputStream input)
static String	toString(InputStream input, int bufferSize)
static String	toString(InputStream input, int bufferSize, String charset)
static String	toString(InputStream input, String charset)
static String	toString(Reader input)
static String	toString(Reader input, int bufSize)
static void	transferTo(InputStream inputStream, File destinationFile)

Methods inherited from class java.lang.Object

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

Field Details

UTF8_CHARSET

public static final Charset UTF8_CHARSET

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

See Also:

• Constant Field Values

Method Details

nullOrNotEmptyStream

public static InputStream nullOrNotEmptyStream(InputStream is)
                                        throws IOException

Checks if input stream is empty. If the standard InputStream means do not provide such details, the stream might be wrapped into PushbackInputStream and is going to be returned instead of original one.

Parameters:

is - input stream to check

Returns:

"null" if original input stream is empty, otherwise original stream or original stream wrapped into PushbackInputStream.

Throws:

IOException

isEmpty

public static boolean isEmpty(InputStream is)
                       throws IOException

Throws:

IOException

newStringFromBytes

public static String newStringFromBytes(byte[] bytes,
 String charsetName)

Use this function instead of new String(byte[], String) to avoid surprises from non-standard default encodings.

Parameters:

bytes -

charsetName -

newStringFromBytes

public static String newStringFromBytes(byte[] bytes)

Use this function instead of new String(byte[]) to avoid surprises from non-standard default encodings.

Parameters:

bytes -

newStringFromBytes

public static String newStringFromBytes(byte[] bytes,
 String charsetName,
 int start,
 int length)

Use this function instead of new String(byte[], int, int, String) to avoid surprises from non-standard default encodings.

Parameters:

bytes -

charsetName -

start -

length -

newStringFromBytes

public static String newStringFromBytes(byte[] bytes,
 int start,
 int length)

Use this function instead of new String(byte[], int, int) to avoid surprises from non-standard default encodings.

Parameters:

bytes -

start -

length -

copy

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

Throws:

IOException

copyAndCloseInput

public static int copyAndCloseInput(InputStream input,
 OutputStream output)
                             throws IOException

Throws:

IOException

copyAndCloseInput

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

Throws:

IOException

copyAndCloseInput

public static void copyAndCloseInput(Reader input,
 Writer output)
                              throws IOException

Throws:

IOException

copyAndCloseInput

public static void copyAndCloseInput(Reader input,
 Writer output,
 int bufferSize)
                              throws IOException

Throws:

IOException

copy

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

Throws:

IOException

copyAtLeast

public static void copyAtLeast(InputStream input,
 OutputStream output,
 int atLeast)
                        throws IOException

Copy at least the specified number of bytes from the input to the output or until the inputstream is finished.

Parameters:

input -

output -

atLeast -

Throws:

IOException

copyAtLeast

public static void copyAtLeast(Reader input,
 Writer output,
 int atLeast)
                        throws IOException

Throws:

IOException

copy

public static void copy(Reader input,
 Writer output,
 int bufferSize)
                 throws IOException

Throws:

IOException

transferTo

public static void transferTo(InputStream inputStream,
 File destinationFile)
                       throws IOException

Throws:

IOException

toString

public static String toString(InputStream input)
                       throws IOException

Throws:

IOException

toString

public static String toString(InputStream input,
 String charset)
                       throws IOException

Throws:

IOException

toString

public static String toString(InputStream input,
 int bufferSize)
                       throws IOException

Throws:

IOException

toString

public static String toString(InputStream input,
 int bufferSize,
 String charset)
                       throws IOException

Throws:

IOException

toString

public static String toString(Reader input)
                       throws IOException

Throws:

IOException

toString

public static String toString(Reader input,
 int bufSize)
                       throws IOException

Throws:

IOException

readStringFromStream

public static String readStringFromStream(InputStream in)
                                   throws IOException

Throws:

IOException

loadIntoBAIS

public static ByteArrayInputStream loadIntoBAIS(InputStream in)
                                         throws IOException

Load the InputStream into memory and return a ByteArrayInputStream that represents it. Closes the in stream.

Parameters:

in -

Throws:

IOException

consume

public static void consume(InputStream in)
                    throws IOException

Throws:

IOException

consume

public static void consume(InputStream input,
 int atLeast)
                    throws IOException

Consumes at least the given number of bytes from the input stream

Parameters:

input -

atLeast -

Throws:

IOException

readBytesFromStream

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

Throws:

IOException