protected static final class PassthroughCodec.StubDecompressor extends Object implements Decompressor
Modifier | Constructor and Description |
---|---|
protected |
StubDecompressor() |
Modifier and Type | Method and Description |
---|---|
int |
decompress(byte[] b,
int off,
int len)
Fills specified buffer with uncompressed data.
|
void |
end()
Closes the decompressor and discards any unprocessed input.
|
boolean |
finished()
Returns
true if the end of the decompressed
data output stream has been reached. |
int |
getRemaining()
Returns the number of bytes remaining in the compressed data buffer.
|
boolean |
needsDictionary()
Returns
true if a preset dictionary is needed for decompression. |
boolean |
needsInput()
Returns
true if the input data buffer is empty and
Decompressor.setInput(byte[], int, int) should be called to
provide more input. |
void |
reset()
Resets decompressor and input and output buffers so that a new set of
input data can be processed.
|
void |
setDictionary(byte[] b,
int off,
int len)
Sets preset dictionary for compression.
|
void |
setInput(byte[] b,
int off,
int len)
Sets input data for decompression.
|
public void setInput(byte[] b, int off, int len)
Decompressor
Decompressor.needsInput()
returns
true
indicating that more input data is required.
(Both native and non-native versions of various Decompressors require
that the data passed in via b[]
remain unmodified until
the caller is explicitly notified--via Decompressor.needsInput()
--that the
buffer may be safely modified. With this requirement, an extra
buffer-copy can be avoided.)setInput
in interface Decompressor
b
- Input dataoff
- Start offsetlen
- Lengthpublic boolean needsInput()
Decompressor
true
if the input data buffer is empty and
Decompressor.setInput(byte[], int, int)
should be called to
provide more input.needsInput
in interface Decompressor
true
if the input data buffer is empty and
Decompressor.setInput(byte[], int, int)
should be called in
order to provide more input.public void setDictionary(byte[] b, int off, int len)
Decompressor
setDictionary
in interface Decompressor
b
- Dictionary data bytesoff
- Start offsetlen
- Lengthpublic boolean needsDictionary()
Decompressor
true
if a preset dictionary is needed for decompression.needsDictionary
in interface Decompressor
true
if a preset dictionary is needed for decompressionpublic boolean finished()
Decompressor
true
if the end of the decompressed
data output stream has been reached. Indicates a concatenated data stream
when finished() returns true
and Decompressor.getRemaining()
returns a positive value. finished() will be reset with the
Decompressor.reset()
method.finished
in interface Decompressor
true
if the end of the decompressed
data output stream has been reached.public int decompress(byte[] b, int off, int len) throws IOException
Decompressor
Decompressor.needsInput()
should be called in order to determine if more
input data is required.decompress
in interface Decompressor
b
- Buffer for the uncompressed dataoff
- Start offset of the datalen
- Size of the bufferIOException
public int getRemaining()
Decompressor
Decompressor.finished()
returns
true
and getRemaining() returns a positive value. If
Decompressor.finished()
returns true
and getRemaining() returns
a zero value, indicates that the end of data stream has been reached and
is not a concatenated data stream.getRemaining
in interface Decompressor
public void reset()
Decompressor
Decompressor.finished()
} returns
true
and Decompressor.getRemaining()
returns a positive value,
reset() is called before processing of the next data stream in the
concatenated data stream. Decompressor.finished()
will be reset and will
return false
when reset() is called.reset
in interface Decompressor
public void end()
Decompressor
end
in interface Decompressor
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