This documentation differs from the official API. Jadeite adds extra features to the API including: variable font sizes, constructions examples, placeholders for classes and methods, and auto-generated “See Also” links. Additionally it is missing some items found in standard Javadoc documentation, including: generics type information, “Deprecated” tags and comments, “See Also” links, along with other minor differences. Please send any questions or feedback to bam@cs.cmu.edu.


com.sun.mail.util
class QPDecoderStream

com.sun.mail.util.QPDecoderStream
Direct Known Subclasses:
QDecoderStream

public class QPDecoderStream
extends FilterInputStream

This class implements a QP Decoder. It is implemented as a FilterInputStream, so one can just wrap this class around any input stream and read bytes from this filter. The decoding is done as the bytes are read out.


Field Summary
protected byte[] ba
          
protected int spaces
          
 
Constructor Summary

          Create a Quoted Printable decoder that decodes the specified input stream.
 
Method Summary
 int

          Returns the number of bytes that can be read from this input stream without blocking.
 boolean

          Tests if this input stream supports marks.
 int

          Read the next decoded byte from this input stream.
 int
read(byte[] buf, int off, int len)

          Reads up to len decoded bytes of data from this input stream into an array of bytes.
 

Field Detail

ba

protected byte[] ba

spaces

protected int spaces
Constructor Detail

QPDecoderStream

public QPDecoderStream(InputStream in)
Create a Quoted Printable decoder that decodes the specified input stream.

Parameters:
in - the input stream
Method Detail

available

public int available()
              throws IOException
Returns the number of bytes that can be read from this input stream without blocking. The QP algorithm does not permit a priori knowledge of the number of bytes after decoding, so this method just invokes the available method of the original input stream.

Overrides:
available in class FilterInputStream
Throws:
IOException

markSupported

public boolean markSupported()
Tests if this input stream supports marks. Currently this class does not support marks

Overrides:
markSupported in class FilterInputStream

read

public int read()
         throws IOException
Read the next decoded byte from this input stream. The byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Overrides:
read in class FilterInputStream
Returns:
the next byte of data, or -1 if the end of the stream is reached.
Throws:
IOException - if an I/O error occurs.

read

public int read(byte[] buf,
                int off,
                int len)
         throws IOException
Reads up to len decoded bytes of data from this input stream into an array of bytes. This method blocks until some input is available.

Overrides:
read in class FilterInputStream
Parameters:
buf - the buffer into which the data is read.
off - the start offset of the data.
len - the maximum number of bytes read.
Returns:
the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.
Throws:
IOException - if an I/O error occurs.


This documentation differs from the official API. Jadeite adds extra features to the API including: variable font sizes, constructions examples, placeholders for classes and methods, and auto-generated “See Also” links. Additionally it is missing some items found in standard Javadoc documentation, including: generics type information, “Deprecated” tags and comments, “See Also” links, along with other minor differences. Please send any questions or feedback to bam@cs.cmu.edu.
This page displays the Jadeite version of the documention. The official Sun™ documentation can be found here at http://java.sun.com/products/javamail/javadocs/index.html.