org.opendaylight.protocol.bgp.parser.impl.message.update

Class ReachAttributeParser

java.lang.Object

org.opendaylight.protocol.bgp.parser.spi.AbstractAttributeParser

org.opendaylight.protocol.bgp.parser.impl.message.update.ReachAttributeParser

All Implemented Interfaces:

AttributeParser, AttributeSerializer

Direct Known Subclasses:

MPReachAttributeParser, MPUnreachAttributeParser

public abstract class ReachAttributeParser
extends AbstractAttributeParser
implements AttributeSerializer

Abstract base class for reachability attribute parsers, MPReachAttributeParser and MPUnreachAttributeParser. These attributes share their RFC7606 handling in that failure to parse them cannot lead to a treat-as-withdraw handling of the message. Individual parser may need access to RevisedErrorHandling for AFI/SAFI-specific parsing.

Constructor Summary

Constructors

Constructor and Description
ReachAttributeParser()

Method Summary

Modifier and Type	Method and Description
boolean	ignoreDuplicates(RevisedErrorHandling errorHandling) Determine whether a duplicate attribute should be ignored or BGPError.MALFORMED_ATTR_LIST should be raised.
abstract void	parseAttribute(io.netty.buffer.ByteBuf buffer, AttributesBuilder builder, RevisedErrorHandling errorHandling, PeerSpecificParserConstraint constraint) Parses attribute from ByteBuf buffer with the specified RevisedErrorHandling.

Methods inherited from class org.opendaylight.protocol.bgp.parser.spi.AbstractAttributeParser

parseAttribute

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opendaylight.protocol.bgp.parser.spi.AttributeSerializer

serializeAttribute

Constructor Detail

ReachAttributeParser

public ReachAttributeParser()

Method Detail

ignoreDuplicates

public boolean ignoreDuplicates(RevisedErrorHandling errorHandling)

Description copied from interface: AttributeParser

Determine whether a duplicate attribute should be ignored or BGPError.MALFORMED_ATTR_LIST should be raised. This is useful for MP_REACH/MP_UNREACH attributes, which need to emit a Notification under RFC7606 rules.

Specified by:

ignoreDuplicates in interface AttributeParser

Parameters:

errorHandling - Revised error handling type

Returns:

True if the duplicate attribute should be ignored, false if a BGPError should be raised.

parseAttribute

public abstract void parseAttribute(io.netty.buffer.ByteBuf buffer,
                                    AttributesBuilder builder,
                                    RevisedErrorHandling errorHandling,
                                    PeerSpecificParserConstraint constraint)
                             throws BGPDocumentedException

Description copied from interface: AttributeParser

Parses attribute from ByteBuf buffer with the specified RevisedErrorHandling. Default implementation ignores error handling and defers to AttributeParser.parseAttribute(ByteBuf, AttributesBuilder, PeerSpecificParserConstraint).

Specified by:

parseAttribute in interface AttributeParser

Specified by:

parseAttribute in class AbstractAttributeParser

Parameters:

buffer - Encoded attribute body in ByteBuf.

builder - Path attributes builder. Guaranteed to contain all valid attributes whose type is numerically lower than this attribute's type.

errorHandling - RFC7606 error handling type

constraint - Peer specific constraints, may be null

Throws:

BGPDocumentedException - when an irrecoverable error occurred which has a BGPError assigned