fiftyone.mobile.detection.readers

Class BinaryReader

java.lang.Object

fiftyone.mobile.detection.readers.BinaryReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class BinaryReader
extends Object
implements Closeable

Provides a way for the API to read from the data file and to retrieve entities of various type.

Objects of this class should not be created directly as they are part of the internal logic.

Field Summary

Fields

Modifier and Type	Field and Description
List<Integer>	list List of integers used to create arrays of integers where the length of the list is not known before reading starts.

Constructor Summary

Constructors

Constructor and Description
BinaryReader(byte[] data) Creates a new BinaryReader object from byte array.
BinaryReader(ByteBuffer byteBuffer) Creates a new BinaryReader from a byte buffer.
BinaryReader(FileInputStream fileInputStream) Creates a new BinaryReader object from file input stream.

Method Summary

Modifier and Type	Method and Description
void	close() Set the byte buffer to null to prevent any further access to the under lying data.
int	getPos()
boolean	readBoolean()
byte	readByte()
byte[]	readBytes(int length)
short	readInt16()
int	readInt32()
int	readUInt16()
void	setPos(int pos) Sets position.

Methods inherited from class java.lang.Object

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

Field Detail

list

public final List<Integer> list

List of integers used to create arrays of integers where the length of the list is not known before reading starts.

Constructor Detail

BinaryReader

public BinaryReader(byte[] data)

Creates a new BinaryReader object from byte array.

Parameters:

data - byte array to use as the source.

BinaryReader

public BinaryReader(FileInputStream fileInputStream)
             throws IOException

Creates a new BinaryReader object from file input stream.

Parameters:

fileInputStream - an open stream to the data file.

Throws:

IOException - if there was a problem accessing data file.

BinaryReader

public BinaryReader(ByteBuffer byteBuffer)

Creates a new BinaryReader from a byte buffer.

Parameters:

byteBuffer - mapped to the data file.

Method Detail

setPos

public void setPos(int pos)

Sets position.

Parameters:

pos - position to set.

getPos

public int getPos()

Returns:

current position in the byte buffer.

readByte

public byte readByte()

readInt16

public short readInt16()

readUInt16

public int readUInt16()

readInt32

public int readInt32()

readBoolean

public boolean readBoolean()

readBytes

public byte[] readBytes(int length)

close

public void close()

Set the byte buffer to null to prevent any further access to the under lying data. This should be done before the channel is closed as the byte buffer could be tied to the channel. Any subsequent access to the methods will fail with a null object exception.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable