Package org.opendaylight.protocol.bgp.flowspec.handlers

Class AbstractOperandParser<T>

java.lang.Object

org.opendaylight.protocol.bgp.flowspec.handlers.AbstractOperandParser<T>

Type Parameters:

T - operand Type

Direct Known Subclasses:

AbstractNumericOperandParser, BitmaskOperandParser

public abstract class AbstractOperandParser<T>
extends Object

Top-level abstract class for all defined operands.

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	AND_BIT
static String	AND_BIT_VALUE
protected static int	END_OF_LIST
static String	END_OF_LIST_VALUE
protected static int	LENGTH_SHIFT
protected static int	OPERAND_LENGTH

Constructor Summary

Constructors

Constructor	Description
AbstractOperandParser()

Method Summary

Modifier and Type	Method	Description
protected abstract T	create(Set<String> opValues)	Creates operand from a set of operand values.
protected abstract T	parse(byte op)	Parses operand from byte value.
static short	parseLength(byte op)
protected abstract void	serialize(T op, int length, boolean endOfList, io.netty.buffer.ByteBuf buffer)	Serializes operand to bytes.
protected abstract String	toString(T op, boolean isFirst)	Creates a string representation of the operand.

Methods inherited from class java.lang.Object

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

Field Detail

AND_BIT_VALUE

public static final String AND_BIT_VALUE

See Also:

Constant Field Values

END_OF_LIST_VALUE

public static final String END_OF_LIST_VALUE

See Also:

Constant Field Values

OPERAND_LENGTH

protected static final int OPERAND_LENGTH

See Also:

Constant Field Values

END_OF_LIST

protected static final int END_OF_LIST

See Also:

Constant Field Values

AND_BIT

protected static final int AND_BIT

See Also:

Constant Field Values

LENGTH_SHIFT

protected static final int LENGTH_SHIFT

See Also:

Constant Field Values

Constructor Detail

AbstractOperandParser

public AbstractOperandParser()

Method Detail

parseLength

public static short parseLength(byte op)

create

protected abstract T create(Set<String> opValues)

Creates operand from a set of operand values.

Parameters:

opValues - set of operand values

Returns:

specific type of operand

serialize

protected abstract void serialize(T op,
                                  int length,
                                  boolean endOfList,
                                  io.netty.buffer.ByteBuf buffer)

Serializes operand to bytes.

Parameters:

op - operand to be serialized

length - value of the 'length' field

endOfList - if this operand is at the end of the list

buffer - where the operand will be serialized to

parse

protected abstract T parse(byte op)

Parses operand from byte value.

Parameters:

op - byte representation of an operand

Returns:

operand object

toString

protected abstract String toString(T op,
                                   boolean isFirst)

Creates a string representation of the operand. E.g. : 'and does not match'

Parameters:

op - operand

isFirst - true if this operand is the first in list of operands

Returns:

String representation of the operand