Package org.apache.fontbox.cff

Class DataInputByteArray

java.lang.Object

org.apache.fontbox.cff.DataInputByteArray

All Implemented Interfaces:

DataInput

public class DataInputByteArray
extends java.lang.Object
implements DataInput

This class implements the DataInput interface using a byte buffer as source.

Field Summary

Fields

Modifier and Type	Field	Description
private int	bufferPosition
private byte[]	inputBuffer

Constructor Summary

Constructors

Constructor	Description
DataInputByteArray(byte[] buffer)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	getPosition()	Returns the current position.
boolean	hasRemaining()	Determines if there are any bytes left to read or not.
int	length()
int	peekUnsignedByte(int offset)	Peeks one single unsigned byte from the buffer.
byte	readByte()	Read one single byte from the buffer.
byte[]	readBytes(int length)	Read a number of single byte values from the buffer.
int	readUnsignedByte()	Read one single unsigned byte from the buffer.
void	setPosition(int position)	Sets the current position to the given value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.fontbox.cff.DataInput

readInt, readOffset, readShort, readUnsignedShort

Field Detail

inputBuffer

private final byte[] inputBuffer

bufferPosition

private int bufferPosition

Constructor Detail

DataInputByteArray

public DataInputByteArray(byte[] buffer)

Constructor.

Parameters:

buffer - the buffer to be read

Method Detail

hasRemaining

public boolean hasRemaining()
                     throws java.io.IOException

Determines if there are any bytes left to read or not.

Specified by:

hasRemaining in interface DataInput

Returns:

true if there are any bytes left to read

Throws:

java.io.IOException - if an error occurs during reading

getPosition

public int getPosition()

Returns the current position.

Specified by:

getPosition in interface DataInput

Returns:

current position

setPosition

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

Sets the current position to the given value.

Specified by:

setPosition in interface DataInput

Parameters:

position - the given position

Throws:

java.io.IOException - if the new position ist out of range

readByte

public byte readByte()
              throws java.io.IOException

Read one single byte from the buffer.

Specified by:

readByte in interface DataInput

Returns:

the byte

Throws:

java.io.IOException - if an error occurs during reading

readUnsignedByte

public int readUnsignedByte()
                     throws java.io.IOException

Read one single unsigned byte from the buffer.

Specified by:

readUnsignedByte in interface DataInput

Returns:

the unsigned byte as int

Throws:

java.io.IOException - if an error occurs during reading

peekUnsignedByte

public int peekUnsignedByte(int offset)
                     throws java.io.IOException

Peeks one single unsigned byte from the buffer.

Specified by:

peekUnsignedByte in interface DataInput

Parameters:

offset - offset to the byte to be peeked

Returns:

the unsigned byte as int

Throws:

java.io.IOException - if an error occurs during reading

readBytes

public byte[] readBytes(int length)
                 throws java.io.IOException

Read a number of single byte values from the buffer.

Specified by:

readBytes in interface DataInput

Parameters:

length - the number of bytes to be read

Returns:

an array with containing the bytes from the buffer

Throws:

java.io.IOException - if an error occurs during reading

length

public int length()
           throws java.io.IOException

Specified by:

length in interface DataInput

Throws:

java.io.IOException