oracle.adf.view.rich.util

Class StreamUtils

java.lang.Object

oracle.adf.view.rich.util.StreamUtils

public class StreamUtils
extends Object

Utility method for working with various types of streams.

Method Summary

Modifier and Type	Method and Description
static void	copy(InputStream is, OutputStream os) Copies the InputStream to the OutputStream using a 4k buffer.
static void	copy(InputStream is, OutputStream os, int size) Copies the InputStream to the OutputStream using a defined buffer size in bytes.
static void	copy(Reader in, Writer out) Copies a Reader to a Writer with an 4096 char buffer.
static void	copy(Reader in, Writer out, int size) Copies a Reader to a Writer with a buffer of size characters.
static int	fill(byte[] buffer, InputStream is) Reads data from the InputStream and tries to fill the buffer.
static InputStream	getPartitionedInputStream(InputStream is, int len) Returns an InputStream that is a partition of another InputStream.
static String	toString(InputStream is, String encoding) Returns a string representation of this input stream.

Methods inherited from class java.lang.Object

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

Method Detail

copy

public static void copy(InputStream is,
                        OutputStream os)
                 throws IOException

Copies the InputStream to the OutputStream using a 4k buffer.

Parameters:

is - The input stream.

os - The ouput stream.

Throws:

IOException - if an I/O error occurs.

copy

public static void copy(InputStream is,
                        OutputStream os,
                        int size)
                 throws IOException

Copies the InputStream to the OutputStream using a defined buffer size in bytes.

Parameters:

is - The input stream.

os - The ouput stream.

size - The read/write buffer size.

Throws:

IOException - if an I/O error occurs.

copy

public static void copy(Reader in,
                        Writer out)
                 throws IOException

Copies a Reader to a Writer with an 4096 char buffer.

Parameters:

in - The input stream.

out - The ouput stream.

Throws:

IOException - if an I/O error occurs.

copy

public static void copy(Reader in,
                        Writer out,
                        int size)
                 throws IOException

Copies a Reader to a Writer with a buffer of size characters.

Parameters:

in - The input stream.

out - The ouput stream.

size - The read/write buffer size.

Throws:

IOException - if an I/O error occurs.

fill

public static int fill(byte[] buffer,
                       InputStream is)
                throws IOException

Reads data from the InputStream and tries to fill the buffer. This may take several reads from the stream depending on the underlying stream implementation. In general the buffer will be filled unless the end of the stream is encountered.

Parameters:

buffer - buffer to be filled in.

is - stream to read from.

Returns:

the number of read.

Throws:

IOException - if an I/O error occurs.

getPartitionedInputStream

public static InputStream getPartitionedInputStream(InputStream is,
                                                    int len)

Returns an InputStream that is a partition of another InputStream. This partition must have a specified size. It is assumed that this substream will be read and closed before a new substream is started or before the original stream is read from again.

Parameters:

is - The input stream.

len - The bumber of bytes to be read.

Returns:

The Partitioned Input Stream

toString

public static String toString(InputStream is,
                              String encoding)

Returns a string representation of this input stream.

Parameters:

is - The input stream

encoding - Encoding to be used to convert to a string.

Returns:

The string that represents this input stream