public class DeltaInputStream
extends java.io.InputStream
The delta filter doesn't change the size of the data and thus it cannot have an end-of-payload marker. It will simply decode until its input stream indicates end of input.
Modifier and Type | Field and Description |
---|---|
static int |
DISTANCE_MAX
Largest supported delta calculation distance.
|
static int |
DISTANCE_MIN
Smallest supported delta calculation distance.
|
Constructor and Description |
---|
DeltaInputStream(java.io.InputStream in,
int distance)
Creates a new Delta decoder with the given delta calculation distance.
|
public static final int DISTANCE_MIN
public static final int DISTANCE_MAX
public DeltaInputStream(java.io.InputStream in, int distance)
in
- input stream from which Delta filtered data
is readdistance
- delta calculation distance, must be in the
range [DISTANCE_MIN
,
DISTANCE_MAX
]public int read() throws java.io.IOException
read
in class java.io.InputStream
-1
to indicate
the end of input on the input stream in
java.io.IOException
- may be thrown by in
public int read(byte[] buf, int off, int len) throws java.io.IOException
This calls in.read(buf, off, len)
and defilters the
returned data.
read
in class java.io.InputStream
buf
- target buffer for decoded dataoff
- start offset in buf
len
- maximum number of bytes to read-1
to indicate
the end of the input stream in
XZIOException
- if the stream has been closedjava.io.IOException
- may be thrown by underlaying input
stream in
public int available() throws java.io.IOException
in.available()
.available
in class java.io.InputStream
in.available()
java.io.IOException
public void close() throws java.io.IOException
in.close()
.
If the stream was already closed, this does nothing.close
in interface java.io.Closeable
close
in interface java.lang.AutoCloseable
close
in class java.io.InputStream
java.io.IOException
- if thrown by in.close()