org.onosproject.bgpio.util

Class Validation

java.lang.Object

org.onosproject.bgpio.util.Validation

public class Validation
extends Object

Provides methods to parse attribute header, validate length and type.

Field Summary

Fields

Modifier and Type	Field and Description
static byte	FIRST_BIT
static byte	FOURTH_BIT
static byte	IPV4_SIZE
static byte	SECOND_BIT
static byte	THIRD_BIT

Method Summary

Modifier and Type	Method and Description
static org.onlab.packet.IpPrefix	bytesToPrefix(byte[] value, int length) Converts byte array of prefix value to IpPrefix object.
boolean	getFirstBit() Returns first bit in type flags.
boolean	getFourthBit() Returns fourth bit in type flags.
int	getLength() Returns attribute length.
boolean	getSecondBit() Returns second bit in type flags.
boolean	getThirdBit() Returns third bit in type flags.
boolean	isShort() Returns whether attribute length read in short or byte.
static Validation	parseAttributeHeader(org.jboss.netty.buffer.ChannelBuffer cb) Parses attribute Header.
static InetAddress	toInetAddress(int length, org.jboss.netty.buffer.ChannelBuffer cb) Convert byte array to InetAddress.
static void	validateLen(byte errorCode, byte subErrCode, int length) Throws exception if length is not correct.
static void	validateType(byte errorCode, byte subErrCode, int type) Throws exception if type is not correct.

Methods inherited from class java.lang.Object

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

Field Detail

FIRST_BIT

public static final byte FIRST_BIT

See Also:

Constant Field Values

SECOND_BIT

public static final byte SECOND_BIT

See Also:

Constant Field Values

THIRD_BIT

public static final byte THIRD_BIT

See Also:

Constant Field Values

FOURTH_BIT

public static final byte FOURTH_BIT

See Also:

Constant Field Values

IPV4_SIZE

public static final byte IPV4_SIZE

See Also:

Constant Field Values

Method Detail

parseAttributeHeader

public static Validation parseAttributeHeader(org.jboss.netty.buffer.ChannelBuffer cb)

Parses attribute Header.

Parameters:

cb - ChannelBuffer

Returns:

object of Validation

validateLen

public static void validateLen(byte errorCode,
                               byte subErrCode,
                               int length)
                        throws BgpParseException

Throws exception if length is not correct.

Parameters:

errorCode - Error code

subErrCode - Sub Error Code

length - erroneous length

Throws:

BgpParseException - for erroneous length

validateType

public static void validateType(byte errorCode,
                                byte subErrCode,
                                int type)
                         throws BgpParseException

Throws exception if type is not correct.

Parameters:

errorCode - Error code

subErrCode - Sub Error Code

type - erroneous type

Throws:

BgpParseException - for erroneous type

toInetAddress

public static InetAddress toInetAddress(int length,
                                        org.jboss.netty.buffer.ChannelBuffer cb)

Convert byte array to InetAddress.

Parameters:

length - of IpAddress

cb - channelBuffer

Returns:

InetAddress

getFirstBit

public boolean getFirstBit()

Returns first bit in type flags.

Returns:

first bit in type flags

getSecondBit

public boolean getSecondBit()

Returns second bit in type flags.

Returns:

second bit in type flags

getThirdBit

public boolean getThirdBit()

Returns third bit in type flags.

Returns:

third bit in type flags

getFourthBit

public boolean getFourthBit()

Returns fourth bit in type flags.

Returns:

fourth bit in type flags

getLength

public int getLength()

Returns attribute length.

Returns:

attribute length

isShort

public boolean isShort()

Returns whether attribute length read in short or byte.

Returns:

whether attribute length read in short or byte

bytesToPrefix

public static org.onlab.packet.IpPrefix bytesToPrefix(byte[] value,
                                                      int length)

Converts byte array of prefix value to IpPrefix object.

Parameters:

value - byte array of prefix value

length - prefix length in bits

Returns:

object of IpPrefix