public class MultiMappedFile extends AbstractArrayDataIO implements nom.tam.util.RandomAccess
BITS_OF_1_BYTE, BITS_OF_2_BYTES, BITS_OF_3_BYTES, BITS_OF_4_BYTES, BITS_OF_5_BYTES, BITS_OF_6_BYTES, BITS_OF_7_BYTES, BYTE_1_OF_LONG_MASK, BYTE_2_OF_LONG_MASK, BYTE_3_OF_LONG_MASK, BYTE_4_OF_LONG_MASK, BYTE_MASK, BYTES_IN_BOOLEAN, BYTES_IN_BYTE, BYTES_IN_CHAR, BYTES_IN_DOUBLE, BYTES_IN_FLOAT, BYTES_IN_INTEGER, BYTES_IN_LONG, BYTES_IN_SHORT, DEFAULT_BUFFER_SIZE, HIGH_INTEGER_MASK, INTEGER_MASK, SHORT_MASK, SHORT_OF_LONG_MASK
Constructor and Description |
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MultiMappedFile(java.nio.channels.FileChannel chan,
java.nio.channels.FileChannel.MapMode mode,
int blockBytes)
Constructs a MultiMappedFile from a channel.
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MultiMappedFile(java.io.File file,
java.nio.channels.FileChannel.MapMode mode,
int blockBytes)
Constructs a MultiMappedFile from a file.
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Modifier and Type | Method and Description |
---|---|
void |
close() |
void |
flush() |
protected byte |
get()
Reads one byte from the current position.
|
protected void |
get(byte[] buf,
int offset,
int length)
Reads bytes into a buffer from the current position.
|
long |
getFilePointer() |
long |
length()
Returns the size of this buffer.
|
void |
mark(int i) |
boolean |
markSupported() |
protected void |
put(byte b)
Writes a single byte at the current position.
|
protected void |
put(byte[] buf,
int offset,
int length)
Writes bytes from a buffer to the current position.
|
protected long |
remaining()
Returns the number of bytes remaining between the current position
and the end of the file.
|
void |
reset() |
void |
seek(long offsetFromStart) |
long |
skip(long nskip) |
void |
skipAllBytes(int toSkip) |
void |
skipAllBytes(long toSkip) |
int |
skipBytes(int toSkip) |
read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, readArray, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLArray, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, write, write, write, write, write, write, write, write, write, write, write, write, write, write, write, write, write, write, write, writeArray, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public MultiMappedFile(java.nio.channels.FileChannel chan, java.nio.channels.FileChannel.MapMode mode, int blockBytes) throws java.io.IOException
chan
- file channelmode
- mapping modeblockBytes
- number of bytes per mapped block
(though the final one may have fewer)java.io.IOException
public MultiMappedFile(java.io.File file, java.nio.channels.FileChannel.MapMode mode, int blockBytes) throws java.io.IOException
file
- filemode
- mapping modeblockBytes
- number of bytes per mapped block
(though the final one may have fewer)java.io.IOException
public void seek(long offsetFromStart) throws java.io.IOException
seek
in interface nom.tam.util.RandomAccess
java.io.IOException
public long skip(long nskip) throws java.io.IOException
skip
in interface nom.tam.util.ArrayDataInput
java.io.IOException
public long getFilePointer()
getFilePointer
in interface nom.tam.util.RandomAccess
public void skipAllBytes(long toSkip) throws java.io.IOException
skipAllBytes
in interface nom.tam.util.ArrayDataInput
java.io.IOException
public void skipAllBytes(int toSkip) throws java.io.IOException
skipAllBytes
in interface nom.tam.util.ArrayDataInput
java.io.IOException
public int skipBytes(int toSkip) throws java.io.IOException
skipBytes
in interface java.io.DataInput
java.io.IOException
protected byte get() throws java.io.IOException
AbstractArrayDataIO
get
in class AbstractArrayDataIO
java.io.IOException
protected void get(byte[] buf, int offset, int length) throws java.io.IOException
AbstractArrayDataIO
get
in class AbstractArrayDataIO
buf
- destination bufferoffset
- offset of first byte in buf
to be writtenlength
- maximum number of bytes to be written to
buf
java.io.IOException
protected void put(byte b) throws java.io.IOException
AbstractArrayDataIO
put
in class AbstractArrayDataIO
b
- output bytejava.io.IOException
protected void put(byte[] buf, int offset, int length) throws java.io.IOException
AbstractArrayDataIO
put
in class AbstractArrayDataIO
buf
- source bufferoffset
- offset of first byte in buf
to be readlength
- number of bytes from buf
to be readjava.io.IOException
public long length()
AbstractArrayDataIO
length
in class AbstractArrayDataIO
protected long remaining()
AbstractArrayDataIO
Long.MAX_VALUE
;remaining
in class AbstractArrayDataIO
public void close() throws java.io.IOException
close
in interface java.io.Closeable
close
in interface java.lang.AutoCloseable
close
in interface nom.tam.util.FitsIO
java.io.IOException
public void flush()
flush
in interface nom.tam.util.ArrayDataOutput
public boolean markSupported()
public void reset() throws java.io.IOException
reset
in interface nom.tam.util.ArrayDataInput
java.io.IOException
public void mark(int i)
mark
in interface nom.tam.util.ArrayDataInput
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