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org.jopendocument.util
Class Base64.InputStream

java.lang.Object
 extended by java.io.InputStream
 extended by java.io.FilterInputStream
 extended by org.jopendocument.util.Base64.InputStream

All Implemented Interfaces:

Closeable

Enclosing class:

Base64

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public static class Base64.InputStream
extends FilterInputStream

A Base64.InputStream will read data from another java.io.InputStream, given in the constructor, and encode/decode to/from Base64 notation on the fly.

Since:

1.3

See Also:

Base64

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Field Summary

Fields inherited from class java.io.FilterInputStream
in

Constructor Summary
Base64.InputStream(InputStream in) Constructs a Base64.InputStream in DECODE mode.
Base64.InputStream(InputStream in, int options) Constructs a Base64.InputStream in either ENCODE or DECODE mode.

Method Summary
int	read() Reads enough of the input stream to convert to/from Base64 and returns the next byte.
int	read(byte[] dest, int off, int len) Calls read() repeatedly until the end of stream is reached or len bytes are read.

Methods inherited from class java.io.FilterInputStream
available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Base64.InputStream

public Base64.InputStream(InputStream in)

Constructs a Base64.InputStream in DECODE mode.

Parameters:

in - the java.io.InputStream from which to read data.

Since:

1.3

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Base64.InputStream

public Base64.InputStream(InputStream in,
 int options)

Constructs a Base64.InputStream in either ENCODE or DECODE mode.

Valid options:

 ENCODE or DECODE: Encode or Decode as data is read.
 DONT_BREAK_LINES: don't break lines at 76 characters
 (only meaningful when encoding)
 <i>Note: Technically, this makes your encoding non-compliant.</i>
 

Example: new Base64.InputStream( in, Base64.DECODE )

Parameters:

in - the java.io.InputStream from which to read data.

options - Specified options

Since:

2.0

See Also:

Base64.ENCODE, Base64.DECODE, Base64.DONT_BREAK_LINES

Method Detail

read

public int read()
 throws IOException

Reads enough of the input stream to convert to/from Base64 and returns the next byte.

Overrides:

read in class FilterInputStream

Returns:

next byte

Throws:

IOException

Since:

1.3

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read

public int read(byte[] dest,
 int off,
 int len)
 throws IOException

Calls read() repeatedly until the end of stream is reached or len bytes are read. Returns number of bytes read into array or -1 if end of stream is encountered.

Overrides:

read in class FilterInputStream

Parameters:

dest - array to hold values

off - offset for array

len - max number of bytes to read into array

Returns:

bytes read into array or -1 if end of stream is encountered.

Throws:

IOException

Since:

1.3

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