com.crankuptheamps.client

Class MemoryStoreBuffer

java.lang.Object

com.crankuptheamps.client.MemoryStoreBuffer

All Implemented Interfaces:

BlockPublishStore.Buffer, java.lang.AutoCloseable

public class MemoryStoreBuffer
extends java.lang.Object
implements BlockPublishStore.Buffer

MemoryStoreBuffer is a wrapper for a java array that maintains position. In order to do this, MemoryStoreBuffer uses a ByteBuffer.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.nio.ByteBuffer	_buffer
protected Store	_store

Constructor Summary

Constructors

Constructor and Description
MemoryStoreBuffer()

Method Summary

Modifier and Type	Method and Description
void	close()
byte	getByte() Gets the byte from the buffer.
void	getBytes(BlockPublishStore.ByteSequence outBytes) Gets the series of bytes at the current position by placing them into the provided BlockPublishStore.ByteSequence object.
void	getBytes(Field outField, int length) Gets the series of bytes at the current position, this is done by copying them into a Field object.
int	getInt() Gets the integer from the buffer.
int	getInt(long position) Gets the integer from the buffer.
long	getLong() Gets the long from the buffer.
long	getPosition() Gets the current position in the buffer.
long	getSize() Gets the size of the buffer.
void	putByte(byte b) Writes the byte in the buffer.
void	putBytes(BlockPublishStore.ByteSequence bytes) Writes a series of bytes at the current position, taken from the specified BlockPublishStore.ByteSequence.
void	putBytes(byte[] buffer, long position, long length) Writes a series of bytes at the current position, taken from a byte array.
void	putInt(int i) Writes the integer into the buffer.
void	putInt(long position, int i) Writes the integer into the buffer.
void	putLong(long l) Writes the long to the buffer.
void	putLong(long position, long l) Writes the long to the buffer.
void	setPosition(long position) Sets the new current position in the buffer.
void	setSize(long newSize) Sets the size of the buffer.
void	zero(long offset, int length) Sets the offset and length of the buffer to 0.

Methods inherited from class java.lang.Object

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

Field Detail

_buffer

protected java.nio.ByteBuffer _buffer

_store

protected Store _store

Constructor Detail

MemoryStoreBuffer

public MemoryStoreBuffer()

Method Detail

getSize

public long getSize()
             throws java.io.IOException

Gets the size of the buffer.

Specified by:

getSize in interface BlockPublishStore.Buffer

Returns:

The size of the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

setSize

public void setSize(long newSize)
             throws java.io.IOException

Sets the size of the buffer.

Specified by:

setSize in interface BlockPublishStore.Buffer

Parameters:

newSize - The new size to be assigned to the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getPosition

public long getPosition()
                 throws java.io.IOException

Gets the current position in the buffer.

Specified by:

getPosition in interface BlockPublishStore.Buffer

Returns:

The current position in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

setPosition

public void setPosition(long position)
                 throws java.io.IOException

Sets the new current position in the buffer.

Specified by:

setPosition in interface BlockPublishStore.Buffer

Parameters:

position - The new current position to be set in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putByte

public void putByte(byte b)
             throws java.io.IOException

Writes the byte in the buffer.

Specified by:

putByte in interface BlockPublishStore.Buffer

Parameters:

b - The byte to be written in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getByte

public byte getByte()
             throws java.io.IOException

Gets the byte from the buffer.

Specified by:

getByte in interface BlockPublishStore.Buffer

Returns:

The byte from the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putInt

public void putInt(int i)
            throws java.io.IOException

Writes the integer into the buffer.

Specified by:

putInt in interface BlockPublishStore.Buffer

Parameters:

i - Integer to be placed in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putInt

public void putInt(long position,
                   int i)
            throws java.io.IOException

Writes the integer into the buffer.

Specified by:

putInt in interface BlockPublishStore.Buffer

Parameters:

position - The location where the integer is placed in the buffer.

i - Integer to be placed in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getInt

public int getInt()
           throws java.io.IOException

Gets the integer from the buffer.

Specified by:

getInt in interface BlockPublishStore.Buffer

Returns:

The integer from the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getInt

public int getInt(long position)
           throws java.io.IOException

Gets the integer from the buffer.

Specified by:

getInt in interface BlockPublishStore.Buffer

Parameters:

position - The position in the buffer where the integer begins.

Returns:

The integer from the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putLong

public void putLong(long l)
             throws java.io.IOException

Writes the long to the buffer.

Specified by:

putLong in interface BlockPublishStore.Buffer

Parameters:

l - The long to write to the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putLong

public void putLong(long position,
                    long l)
             throws java.io.IOException

Writes the long to the buffer.

Specified by:

putLong in interface BlockPublishStore.Buffer

Parameters:

position - The position in the buffer where the long should be placed.

l - The long to write in the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getLong

public long getLong()
             throws java.io.IOException

Gets the long from the buffer.

Specified by:

getLong in interface BlockPublishStore.Buffer

Returns:

The long from the buffer.

Throws:

java.io.IOException - Not thrown from this implementation

putBytes

public void putBytes(BlockPublishStore.ByteSequence bytes)
              throws java.io.IOException

Writes a series of bytes at the current position, taken from the specified BlockPublishStore.ByteSequence.

Specified by:

putBytes in interface BlockPublishStore.Buffer

Parameters:

bytes - The series of bytes to write at the current position.

Throws:

java.io.IOException - Not thrown from this implementation

getBytes

public void getBytes(BlockPublishStore.ByteSequence outBytes)
              throws java.io.IOException

Gets the series of bytes at the current position by placing them into the provided BlockPublishStore.ByteSequence object.

Specified by:

getBytes in interface BlockPublishStore.Buffer

Parameters:

outBytes - The ByteSequence object to be copied.

Throws:

java.io.IOException - Not thrown from this implementation

putBytes

public void putBytes(byte[] buffer,
                     long position,
                     long length)
              throws java.io.IOException

Writes a series of bytes at the current position, taken from a byte array.

Specified by:

putBytes in interface BlockPublishStore.Buffer

Parameters:

buffer - The buffer containing a series of bytes.

position - The position in the buffer where the series of bytes are located.

length - The length of the byte buffer.

Throws:

java.io.IOException - Not thrown from this implementation

getBytes

public void getBytes(Field outField,
                     int length)
              throws java.io.IOException

Gets the series of bytes at the current position, this is done by copying them into a Field object.

Specified by:

getBytes in interface BlockPublishStore.Buffer

Parameters:

outField - The Field object used to copy the byte sequence.

length - The length of the Field object.

Throws:

java.io.IOException - Not thrown from this implementation

zero

public void zero(long offset,
                 int length)
          throws java.io.IOException

Sets the offset and length of the buffer to 0.

Specified by:

zero in interface BlockPublishStore.Buffer

Parameters:

offset - The offset to set as 0.

length - The length to set as 0.

Throws:

java.io.IOException - Not thrown from this implementation

close

public void close()
           throws java.lang.Exception

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.lang.Exception