public class MultiByteArrayInputStream extends InputStream implements InputStreaming
Modifier and Type | Field and Description |
---|---|
protected static byte[] |
EMPTY_BYTES
Empty array of bytes.
|
protected byte[][] |
m_aabArray
The array of byte arrays.
|
protected byte[] |
m_ab
The current byte array.
|
protected boolean |
m_fDestructive
True iff the array will be null'd out as it is traversed.
|
protected boolean |
m_fEOF
True after eof is determined.
|
protected int |
m_iArray
The index of the current byte array.
|
protected int |
m_iArrayMarked
The index of the marked byte array.
|
protected int |
m_of
The current offset in the current byte array.
|
protected int |
m_ofMarked
The marked offset in the marked byte array.
|
protected static int |
MARK_UNSET
Marker position indicating that stream is not marked.
|
Constructor and Description |
---|
MultiByteArrayInputStream(byte[][] aab)
Construct a MultiByteArrayInputStream.
|
MultiByteArrayInputStream(byte[][] aab, boolean fDestructive)
Construct a MultiByteArrayInputStream.
|
Modifier and Type | Method and Description |
---|---|
int |
available()
Returns the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream.
|
void |
close()
Close the stream.
|
void |
mark(int readlimit)
Marks the current position in this input stream.
|
boolean |
markSupported()
Tests if this input stream supports the
mark and reset methods. |
int |
read()
Reads the next byte of data from the input stream.
|
int |
read(byte[] abDest, int ofDest, int cbDest)
Reads up to
len bytes of data from the input stream into an array of bytes. |
void |
reset()
Repositions this stream to the position at the time the
mark method was last called on this input stream. |
long |
skip(long n)
Skips over and discards
n bytes of data from this input stream. |
read
protected static final byte[] EMPTY_BYTES
protected static final int MARK_UNSET
protected boolean m_fEOF
protected boolean m_fDestructive
protected byte[][] m_aabArray
protected int m_iArray
protected byte[] m_ab
protected int m_of
protected int m_iArrayMarked
protected int m_ofMarked
public MultiByteArrayInputStream(byte[][] aab)
aab
- a non-null array of byte arrays of data to stream, each byte array must be non-null and non-zero-lengthpublic MultiByteArrayInputStream(byte[][] aab, boolean fDestructive)
aab
- a non-null array of byte arrays of data to stream, each byte array must be non-null and non-zero-lengthfDestructive
- if true the supplied array will be cleared as it is traversed, stream mark positions will be respectedpublic 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 interface com.oracle.common.io.InputStreaming
read
in class InputStream
-1
if the end of the stream is reached.IOException
- if an I/O error occurs.public int read(byte[] abDest, int ofDest, int cbDest) throws IOException
len
bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len
bytes, but a smaller number may be read, possibly zero. The number of bytes actually read is returned as an integer.read
in interface com.oracle.common.io.InputStreaming
read
in class InputStream
abDest
- the buffer into which the data is readofDest
- the start offset in array b
at which the data is writtencbDest
- the maximum number of bytes to read-1
if there is no more data because the end of the stream has been reached.IOException
- if an I/O error occurspublic int available()
available
in interface com.oracle.common.io.InputStreaming
available
in class InputStream
public long skip(long n)
n
bytes of data from this input stream. The skip
method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly 0
. This may result from any of a number of conditions; reaching end of file before n
bytes have been skipped is only one possibility. The actual number of bytes skipped is returned. If n
is negative, no bytes are skipped.skip
in interface com.oracle.common.io.InputStreaming
skip
in class InputStream
n
- the number of bytes to be skippedpublic void close()
close
in interface com.oracle.common.io.InputStreaming
close
in interface Closeable
close
in interface AutoCloseable
close
in class InputStream
public void mark(int readlimit)
reset
method repositions this stream at the last marked position so that subsequent reads re-read the same bytes.mark
in interface com.oracle.common.io.InputStreaming
mark
in class InputStream
readlimit
- the maximum limit of bytes that can be read before the mark position becomes invalidpublic void reset() throws IOException
mark
method was last called on this input stream.reset
in interface com.oracle.common.io.InputStreaming
reset
in class InputStream
IOException
- if the stream has not been markedpublic boolean markSupported()
mark
and reset
methods. The markSupported
method of InputStream
returns false
.markSupported
in interface com.oracle.common.io.InputStreaming
markSupported
in class InputStream
true
if this true type supports the mark and reset method; false
otherwise