com.asakusafw.runtime.io.util

Class BufferedFileOutput

java.lang.Object

com.asakusafw.runtime.io.util.BufferedFileOutput

All Implemented Interfaces:

Closeable, DataOutput, Flushable, AutoCloseable, RandomAccess

public class BufferedFileOutput
extends Object
implements RandomAccess, DataOutput, Flushable, Closeable

An implementation of DataOutput for RandomAccessFile.

Since:

0.7.0

Constructor Summary

Constructors

Constructor and Description
BufferedFileOutput(RandomAccessFile file, byte[] buffer) Creates a new instance.
BufferedFileOutput(RandomAccessFile file, int bufferSize) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
long	getPosition() Returns the current file position in bytes.
long	getSize() Returns the file size in bytes.
void	seek(long position) Sets cursor in the target file.
void	sync() Resets internal buffer.
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(String s)
void	writeChar(int v)
void	writeChars(String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeShort(int v)
void	writeUTF(String s)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferedFileOutput

public BufferedFileOutput(RandomAccessFile file,
                          int bufferSize)

Creates a new instance.

Parameters:

bufferSize - the buffer size

file - the target file

BufferedFileOutput

public BufferedFileOutput(RandomAccessFile file,
                          byte[] buffer)

Creates a new instance.

Parameters:

buffer - internal buffer

file - the target file

Method Detail

sync

public void sync()
          throws IOException

Resets internal buffer.

Throws:

IOException - if failed by I/O error

seek

public void seek(long position)
          throws IOException

Sets cursor in the target file.

Parameters:

position - the new position

Throws:

IOException - if failed by I/O error

getPosition

public long getPosition()
                 throws IOException

Returns the current file position in bytes.

Returns:

the current position

Throws:

IOException - if failed by I/O error

getSize

public long getSize()
             throws IOException

Returns the file size in bytes.

Returns:

the file size

Throws:

IOException - if failed by I/O error

write

public void write(int b)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

writeBoolean

public void writeBoolean(boolean v)
                  throws IOException

Specified by:

writeBoolean in interface DataOutput

Throws:

IOException

writeByte

public void writeByte(int v)
               throws IOException

Specified by:

writeByte in interface DataOutput

Throws:

IOException

writeShort

public void writeShort(int v)
                throws IOException

Specified by:

writeShort in interface DataOutput

Throws:

IOException

writeChar

public void writeChar(int v)
               throws IOException

Specified by:

writeChar in interface DataOutput

Throws:

IOException

writeInt

public void writeInt(int v)
              throws IOException

Specified by:

writeInt in interface DataOutput

Throws:

IOException

writeLong

public void writeLong(long v)
               throws IOException

Specified by:

writeLong in interface DataOutput

Throws:

IOException

writeFloat

public void writeFloat(float v)
                throws IOException

Specified by:

writeFloat in interface DataOutput

Throws:

IOException

writeDouble

public void writeDouble(double v)
                 throws IOException

Specified by:

writeDouble in interface DataOutput

Throws:

IOException

writeBytes

public void writeBytes(String s)
                throws IOException

Specified by:

writeBytes in interface DataOutput

Throws:

IOException

writeChars

public void writeChars(String s)
                throws IOException

Specified by:

writeChars in interface DataOutput

Throws:

IOException

writeUTF

public void writeUTF(String s)
              throws IOException

Specified by:

writeUTF in interface DataOutput

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException