org.minidns.edns

Class EdnsOption

java.lang.Object

org.minidns.edns.EdnsOption

Direct Known Subclasses:

Nsid, UnknownEdnsOption

public abstract class EdnsOption
extends Object

Abstract base class for EDNS options.

Field Summary

Fields

Modifier and Type	Field and Description
int	optionCode The EDNS option code.
protected byte[]	optionData The raw option data.
int	optionLength The length of the option data.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EdnsOption(byte[] optionData) Creates a new EDNS option with the specified data.
protected	EdnsOption(int optionCode, byte[] optionData) Creates a new EDNS option with the specified option code and data.

Method Summary

Modifier and Type	Method and Description
String	asTerminalOutput() Returns the terminal output representation of this EDNS option.
protected abstract CharSequence	asTerminalOutputInternal() Returns the terminal output representation of this EDNS option.
abstract Edns.OptionCode	getOptionCode() Returns the option code for this EDNS option.
static EdnsOption	parse(int intOptionCode, byte[] optionData) Parses an EDNS option from the specified option code and data.
String	toString()
protected abstract CharSequence	toStringInternal() Returns the string representation of this EDNS option.
void	writeToDos(DataOutputStream dos) Writes this EDNS option to the specified data output stream.

Methods inherited from class java.lang.Object

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

Field Detail

optionCode

public final int optionCode

The EDNS option code.

optionData

protected final byte[] optionData

The raw option data.

optionLength

public final int optionLength

The length of the option data.

Constructor Detail

EdnsOption

protected EdnsOption(byte[] optionData)

Creates a new EDNS option with the specified data. The option code is derived from the concrete implementation.

Parameters:

optionData - the option data

EdnsOption

protected EdnsOption(int optionCode,
                     byte[] optionData)

Creates a new EDNS option with the specified option code and data.

Parameters:

optionCode - the option code

optionData - the option data

Method Detail

asTerminalOutput

public final String asTerminalOutput()

Returns the terminal output representation of this EDNS option.

Returns:

the terminal output representation

asTerminalOutputInternal

protected abstract CharSequence asTerminalOutputInternal()

Returns the terminal output representation of this EDNS option.

Returns:

the terminal output representation

getOptionCode

public abstract Edns.OptionCode getOptionCode()

Returns the option code for this EDNS option.

Returns:

the option code

parse

public static EdnsOption parse(int intOptionCode,
                               byte[] optionData)

Parses an EDNS option from the specified option code and data.

Parameters:

intOptionCode - the option code as an integer

optionData - the option data

Returns:

the parsed EDNS option

toString

public final String toString()

Overrides:

toString in class Object

toStringInternal

protected abstract CharSequence toStringInternal()

Returns the string representation of this EDNS option.

Returns:

the string representation

writeToDos

public final void writeToDos(DataOutputStream dos)
                      throws IOException

Writes this EDNS option to the specified data output stream.

Parameters:

dos - the data output stream to write to

Throws:

IOException - if an I/O error occurs