Package org.apache.fontbox.cff

Class DataInput

java.lang.Object

org.apache.fontbox.cff.DataInput

Direct Known Subclasses:

CFFDataInput

public class DataInput
extends java.lang.Object

This class contains some functionality to read a byte buffer.

Author:

Villu Ruusmann

Constructor Summary

Constructors

Constructor	Description
DataInput(byte[] buffer)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	getPosition()	Returns the current position.
java.lang.String	getString()	Returns the buffer as an ISO-8859-1 string.
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	readInt()	Read one single int (4 bytes) from the buffer.
short	readShort()	Read one single short value from the buffer.
int	readUnsignedByte()	Read one single unsigned byte from the buffer.
int	readUnsignedShort()	Read one single unsigned short (2 bytes) value 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

Constructor Detail

DataInput

public DataInput(byte[] buffer)

Constructor.

Parameters:

buffer - the buffer to be read

Method Detail

hasRemaining

public boolean hasRemaining()

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

Returns:

true if there are any bytes left to read

getPosition

public int getPosition()

Returns the current position.

Returns:

current position

setPosition

public void setPosition(int position)

Sets the current position to the given value.

Parameters:

position - the given position

getString

public java.lang.String getString()
                           throws java.io.IOException

Returns the buffer as an ISO-8859-1 string.

Returns:

the buffer as string

Throws:

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

readByte

public byte readByte()
              throws java.io.IOException

Read one single byte from the buffer.

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.

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.

Returns:

the unsigned byte as int

Throws:

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

readShort

public short readShort()
                throws java.io.IOException

Read one single short value from the buffer.

Returns:

the short value

Throws:

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

readUnsignedShort

public int readUnsignedShort()
                      throws java.io.IOException

Read one single unsigned short (2 bytes) value from the buffer.

Returns:

the unsigned short value as int

Throws:

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

readInt

public int readInt()
            throws java.io.IOException

Read one single int (4 bytes) from the buffer.

Returns:

the int value

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.

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()