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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 | |
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protected byte[] |
ba
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protected int |
spaces
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Constructor Summary | |
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Create a Quoted Printable decoder that decodes the specified input stream. |
Method Summary | |
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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() 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.
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Field Detail |
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protected byte[] ba
protected int spaces
Constructor Detail |
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public QPDecoderStream(InputStream in)
in
- the input streamMethod Detail |
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public int available() throws IOException
available
method
of the original input stream.
available
in class FilterInputStream
IOException
public boolean markSupported()
markSupported
in class FilterInputStream
public int read() throws IOException
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.
read
in class FilterInputStream
-1
if the end of the
stream is reached.IOException
- if an I/O error occurs.public int read(byte[] buf, int off, int len) throws IOException
len
decoded bytes of data from this input stream
into an array of bytes. This method blocks until some input is
available.
read
in class FilterInputStream
buf
- the buffer into which the data is read.off
- the start offset of the data.len
- the maximum number of bytes read.-1
if there is no more data because the end of
the stream has been reached.IOException
- if an I/O error occurs.
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