public abstract class ImageOutputStreamImpl extends ImageInputStreamImpl implements ImageOutputStream
ImageOutputStream interface.
This class is designed to reduce the number of methods that must
be implemented by subclasses.bitOffset, byteOrder, flushedPos, streamPos | Constructor and Description |
|---|
ImageOutputStreamImpl ()
Constructs an
ImageOutputStreamImpl. |
| Modifier and Type | Method and Description |
|---|---|
protected void |
flushBits ()
If the bit offset is non-zero, forces the remaining bits
in the current byte to 0 and advances the stream position
by one.
|
void |
write (byte[] b)
Writes a sequence of bytes to the stream at the current
position.
|
abstract void |
write (byte[] b,
int off,
int len)
Writes a sequence of bytes to the stream at the current
position.
|
abstract void |
write (int b)
Writes a single byte to the stream at the current position.
|
void |
writeBit (int bit)
Writes a single bit, given by the least significant bit of the
argument, to the stream at the current bit offset within the
current byte position.
|
void |
writeBits (long bits,
int numBits)
Writes a sequence of bits, given by the
numBits
least significant bits of the bits argument in
left-to-right order, to the stream at the current bit offset
within the current byte position. |
void |
writeBoolean (boolean v)
Writes a
boolean value to the stream. |
void |
writeByte (int v)
Writes the 8 low-order bits of
v to the
stream. |
void |
writeBytes (String s)
Writes a string to the output stream.
|
void |
writeChar (int v)
This method is a synonym for
|
void |
writeChars (char[] c,
int off,
int len)
Writes a sequence of chars to the stream at the current
position.
|
void |
writeChars (String s)
Writes a string to the output stream.
|
void |
writeDouble (double v)
Writes a
double value, which is comprised of four
bytes, to the output stream. |
void |
writeDoubles (double[] d,
int off,
int len)
Writes a sequence of doubles to the stream at the current
position.
|
void |
writeFloat (float v)
Writes a
float value, which is comprised of four
bytes, to the output stream. |
void |
writeFloats (float[] f,
int off,
int len)
Writes a sequence of floats to the stream at the current
position.
|
void |
writeInt (int v)
Writes the 32 bits of
v to the stream. |
void |
writeInts (int[] i,
int off,
int len)
Writes a sequence of ints to the stream at the current
position.
|
void |
writeLong (long v)
Writes the 64 bits of
v to the stream. |
void |
writeLongs (long[] l,
int off,
int len)
Writes a sequence of longs to the stream at the current
position.
|
void |
writeShort (int v)
Writes the 16 low-order bits of
v to the
stream. |
void |
writeShorts (short[] s,
int off,
int len)
Writes a sequence of shorts to the stream at the current
position.
|
void |
writeUTF (String s)
Writes two bytes of length information to the output stream in
network byte order, followed by the
modified
UTF-8
representation of every character in the string
s. |
checkClosed, close, finalize, flush, flushBefore, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, isCached, isCachedFile, isCachedMemory, length, mark, read, read, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, reset, seek, setBitOffset, setByteOrder, skipBytes, skipBytes clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait flushBefore close, flush, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, isCached, isCachedFile, isCachedMemory, length, mark, read, read, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, reset, seek, setBitOffset, setByteOrder, skipBytes, skipBytes public ImageOutputStreamImpl()
ImageOutputStreamImpl.public abstract void write(int b) throws IOException
ImageOutputStream b are ignored.
If the bit offset within the stream is non-zero, the
remainder of the current byte is padded with 0s
and written out first. The bit offset will be 0 after the
write. Implementers can use the
flushBitsImageOutputStreamImpl
write in interface DataOutput write in interface ImageOutputStream b - an int whose lower 8 bits are to be
written.IOException - if an I/O error occurs.public void write(byte[] b) throws IOException
ImageOutputStream b.length is 0, nothing is written.
The byte b[0] is written first, then the byte
b[1], and so on.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
write in interface DataOutput write in interface ImageOutputStream b - an array of bytes to be written.IOException - if an I/O error occurs.public abstract void write(byte[] b, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The byte b[off] is written first, then the byte
b[off + 1], and so on.
If the bit offset within the stream is non-zero, the
remainder of the current byte is padded with 0s
and written out first. The bit offset will be 0 after the
write. Implementers can use the
flushBitsImageOutputStreamImpl
write in interface DataOutput write in interface ImageOutputStream b - an array of bytes to be written.off - the start offset in the data.len - the number of bytes to write.IOException - if an I/O error occurs.public void writeBoolean(boolean v) throws IOException
ImageOutputStream boolean value to the stream. If
v is true, the value (byte)1 is
written; if v is false, the value
(byte)0 is written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeBoolean in interface DataOutput writeBoolean in interface ImageOutputStream v - the boolean to be written.IOException - if an I/O error occurs.public void writeByte(int v) throws IOException
ImageOutputStream v to the
stream. The 24 high-order bits of v are ignored.
(This means that writeByte does exactly the same
thing as write for an integer argument.)
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeByte in interface DataOutput writeByte in interface ImageOutputStream v - an int containing the byte value to be
written.IOException - if an I/O error occurs.public void writeShort(int v) throws IOException
ImageOutputStream v to the
stream. The 16 high-order bits of v are ignored.
If the stream uses network byte order, the bytes written, in
order, will be:
(byte)((v >> 8) & 0xff) (byte)(v & 0xff)Otherwise, the bytes written will be:
(byte)(v & 0xff) (byte)((v >> 8) & 0xff)
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeShort in interface DataOutput writeShort in interface ImageOutputStream v - an int containing the short value to be
written.IOException - if an I/O error occurs.public void writeChar(int v) throws IOException
ImageOutputStream writeShortwriteChar in interface DataOutput writeChar in interface ImageOutputStream v - an int containing the char (unsigned
short) value to be written.IOException - if an I/O error occurs.ImageOutputStream.writeShort(int) public void writeInt(int v) throws IOException
ImageOutputStream v to the stream. If the
stream uses network byte order, the bytes written, in order,
will be:
(byte)((v >> 24) & 0xff) (byte)((v >> 16) & 0xff) (byte)((v >> 8) & 0xff) (byte)(v & 0xff)Otheriwse, the bytes written will be:
(byte)(v & 0xff) (byte)((v >> 8) & 0xff) (byte)((v >> 16) & 0xff) (byte)((v >> 24) & 0xff)
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeInt in interface DataOutput writeInt in interface ImageOutputStream v - an int containing the value to be
written.IOException - if an I/O error occurs.public void writeLong(long v) throws IOException
ImageOutputStream v to the stream. If the
stream uses network byte order, the bytes written, in order,
will be:
(byte)((v >> 56) & 0xff) (byte)((v >> 48) & 0xff) (byte)((v >> 40) & 0xff) (byte)((v >> 32) & 0xff) (byte)((v >> 24) & 0xff) (byte)((v >> 16) & 0xff) (byte)((v >> 8) & 0xff) (byte)(v & 0xff)Otherwise, the bytes written will be:
(byte)(v & 0xff) (byte)((v >> 8) & 0xff) (byte)((v >> 16) & 0xff) (byte)((v >> 24) & 0xff) (byte)((v >> 32) & 0xff) (byte)((v >> 40) & 0xff) (byte)((v >> 48) & 0xff) (byte)((v >> 56) & 0xff)
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeLong in interface DataOutput writeLong in interface ImageOutputStream v - a long containing the value to be
written.IOException - if an I/O error occurs.public void writeFloat(float v) throws IOException
ImageOutputStream float value, which is comprised of four
bytes, to the output stream. It does this as if it first
converts this float value to an int
in exactly the manner of the Float.floatToIntBits
method and then writes the int value in exactly the manner of
the writeInt method.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeFloat in interface DataOutput writeFloat in interface ImageOutputStream v - a float containing the value to be
written.IOException - if an I/O error occurs.public void writeDouble(double v) throws IOException
ImageOutputStream double value, which is comprised of four
bytes, to the output stream. It does this as if it first
converts this double value to an long
in exactly the manner of the
Double.doubleToLongBits method and then writes the
long value in exactly the manner of the writeLong
method.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeDouble in interface DataOutput writeDouble in interface ImageOutputStream v - a double containing the value to be
written.IOException - if an I/O error occurs.public void writeBytes(String s) throws IOException
ImageOutputStream s, taken in order, one byte is written
to the output stream. If s is null, a
NullPointerException is thrown.
If s.length is zero, then no bytes are
written. Otherwise, the character s[0] is written
first, then s[1], and so on; the last character
written is s[s.length-1]. For each character, one
byte is written, the low-order byte, in exactly the manner of
the writeByte method. The high-order eight bits of
each character in the string are ignored.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeBytes in interface DataOutput writeBytes in interface ImageOutputStream s - a String containing the value to be
written.IOException - if an I/O error occurs.public void writeChars(String s) throws IOException
ImageOutputStream s, taken in order, two bytes are
written to the output stream, ordered according to the current
byte order setting. If network byte order is being used, the
high-order byte is written first; the order is reversed
otherwise. If s is null, a
NullPointerException is thrown.
If s.length is zero, then no bytes are
written. Otherwise, the character s[0] is written
first, then s[1], and so on; the last character
written is s[s.length-1].
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeChars in interface DataOutput writeChars in interface ImageOutputStream s - a String containing the value to be
written.IOException - if an I/O error occurs.public void writeUTF(String s) throws IOException
ImageOutputStream s.
If s is null, a
NullPointerException is thrown. Each character in
the string s is converted to a group of one, two,
or three bytes, depending on the value of the character.
If a character c is in the range
\u0001 through \u007f, it is
represented by one byte:
(byte)c
If a character c is \u0000 or
is in the range \u0080 through
\u07ff, then it is represented by two bytes,
to be written in the order shown:
(byte)(0xc0 | (0x1f & (c >> 6)))
(byte)(0x80 | (0x3f & c))
If a character c is in the range
\u0800 through uffff, then it is
represented by three bytes, to be written in the order shown:
(byte)(0xe0 | (0x0f & (c >> 12)))
(byte)(0x80 | (0x3f & (c >> 6)))
(byte)(0x80 | (0x3f & c))
First, the total number of bytes needed to represent all
the characters of s is calculated. If this number
is larger than 65535, then a
UTFDataFormatException is thrown. Otherwise, this
length is written to the output stream in exactly the manner of
the writeShort method; after this, the one-, two-,
or three-byte representation of each character in the string
s is written.
The current byte order setting is ignored.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
Note: This method should not be used in the implementation of image formats that use standard UTF-8, because the modified UTF-8 used here is incompatible with standard UTF-8.
writeUTF in interface DataOutput writeUTF in interface ImageOutputStream s - a String containing the value to be
written.IOException - if an I/O error occurs.public void writeShorts(short[] s, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The short s[off] is written first, then the short
s[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeShorts in interface ImageOutputStream s - an array of shorts to be written.off - the start offset in the data.len - the number of shorts to write.IOException - if an I/O error occurs.public void writeChars(char[] c, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The char c[off] is written first, then the char
c[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeChars in interface ImageOutputStream c - an array of chars to be written.off - the start offset in the data.len - the number of chars to write.IOException - if an I/O error occurs.public void writeInts(int[] i, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The int i[off] is written first, then the int
i[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeInts in interface ImageOutputStream i - an array of ints to be written.off - the start offset in the data.len - the number of ints to write.IOException - if an I/O error occurs.public void writeLongs(long[] l, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The long l[off] is written first, then the long
l[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeLongs in interface ImageOutputStream l - an array of longs to be written.off - the start offset in the data.len - the number of longs to write.IOException - if an I/O error occurs.public void writeFloats(float[] f, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The float f[off] is written first, then the float
f[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeFloats in interface ImageOutputStream f - an array of floats to be written.off - the start offset in the data.len - the number of floats to write.IOException - if an I/O error occurs.public void writeDoubles(double[] d, int off, int len) throws IOException
ImageOutputStream len is 0, nothing is written.
The double d[off] is written first, then the double
d[off + 1], and so on. The byte order of the
stream is used to determine the order in which the individual
bytes are written.
If the bit offset within the stream is non-zero, the remainder of the current byte is padded with 0s and written out first. The bit offset will be 0 after the write.
writeDoubles in interface ImageOutputStream d - an array of doubless to be written.off - the start offset in the data.len - the number of doubles to write.IOException - if an I/O error occurs.public void writeBit(int bit) throws IOException
ImageOutputStream If any bits of a particular byte have never been set at the time the byte is flushed to the destination, those bits will be set to 0 automatically.
writeBit in interface ImageOutputStream bit - an int whose least significant bit
is to be written to the stream.IOException - if an I/O error occurs.public void writeBits(long bits, int numBits) throws IOException
ImageOutputStream numBits
least significant bits of the bits argument in
left-to-right order, to the stream at the current bit offset
within the current byte position. The upper 64 -
numBits bits of the argument are ignored. The bit
offset is advanced by numBits and reduced modulo
8. Note that a bit offset of 0 always indicates the
most-significant bit of the byte, and bytes of bits are written
out in sequence as they are encountered. Thus bit writes are
always effectively in network byte order. The actual stream
byte order setting is ignored.
Bit data may be accumulated in memory indefinitely, until
flushBefore is called. At that time, all bit data
prior to the flushed position will be written.
If any bits of a particular byte have never been set at the time the byte is flushed to the destination, those bits will be set to 0 automatically.
writeBits in interface ImageOutputStream bits - a long containing the bits to be
written, starting with the bit in position numBits -
1 down to the least significant bit.numBits - an int between 0 and 64, inclusive.IOException - if an I/O error occurs.protected final void flushBits() throws IOException
write(int) and
write(byte[], int, int) methods.IOException - if an I/O error occurs. Submit a bug or feature
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