iaik.smime
Class CanonicalizeInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          iaik.smime.CanonicalizeInputStream

All Implemented Interfaces:

java.io.Closeable

public class CanonicalizeInputStream
extends java.io.FilterInputStream

Canonicalizes an input stream so that any line is finished by a CRFL (13, 10).

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

CanonicalizeInputStream(iaik.utils.LineInputStream in, java.lang.String boundary)
Creates a new CanonicalizeInputStream for canonicalizing the given LineInputStream.

Method Summary

int	available() Returns the number of bytes that can be read without blocking.
void	close() Closes this input stream.
void	mark(int readlimit) Does nothing since mark/reset is not supported by this stream.
boolean	markSupported() Returns false since mark/reset is not supported by this input stream.
int	read() Reads the next byte.
int	read(byte[] b, int off, int len) Reads and canonicalizes up to len bytes in the given byte array.
void	reset() Throws an IOException since mark/reset is not supported by this stream.
long	skip(long n) Skips the given number of bytes.

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Constructor Detail

CanonicalizeInputStream

public CanonicalizeInputStream(iaik.utils.LineInputStream in,
                               java.lang.String boundary)

Creates a new CanonicalizeInputStream for canonicalizing the given LineInputStream.

Parameters:

in - the input stream to be canonicalized

boundary - the MIME boundary

Method Detail

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Reads and canonicalizes up to len bytes in the given byte array.

Overrides:

read in class java.io.FilterInputStream

Parameters:

b - the byte array to which to read

off - the start offset

len - the number of bytes to read

Throws:

java.io.IOException - if a read error occurs

read

public int read()
         throws java.io.IOException

Reads the next byte.

Overrides:

read in class java.io.FilterInputStream

Returns:

the next byte, or -1 if no more byte is available because the end of the stream already has been reached

Throws:

java.io.IOException - if an I/O error occurs

skip

public long skip(long n)
          throws java.io.IOException

Skips the given number of bytes.

Overrides:

skip in class java.io.FilterInputStream

Parameters:

n - the number of bytes to be skipped

Returns:

the number of skipped bytes

Throws:

java.io.IOException - if an I/O error occurrs

available

public int available()
              throws java.io.IOException

Returns the number of bytes that can be read without blocking.

Overrides:

available in class java.io.FilterInputStream

Returns:

the number of bytes that can be read without blocking

Throws:

java.io.IOException - if an I/O related problem occurs

close

public void close()
           throws java.io.IOException

Closes this input stream.

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.FilterInputStream

Throws:

java.io.IOException - if an I/O error occurs when closing the stream.

mark

public void mark(int readlimit)

Does nothing since mark/reset is not supported by this stream.

Overrides:

mark in class java.io.FilterInputStream

Parameters:

readlimit - the read limit; ignored

reset

public void reset()
           throws java.io.IOException

Throws an IOException since mark/reset is not supported by this stream.

Overrides:

reset in class java.io.FilterInputStream

Throws:

java.io.IOException - thrown in any case since mark/reset is not supported by this stream.

markSupported

public boolean markSupported()

Returns false since mark/reset is not supported by this input stream.

Overrides:

markSupported in class java.io.FilterInputStream

Returns:

false