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Experiment with rewriting Dumper with visitor pattern
Initial part of the rewriting, code is not compiling yet
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,4 +1,4 @@ | ||
| SUBDIRS=parser dumper examples | ||
| SUBDIRS=parser dumper2 | ||
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| ACLOCAL_AMFLAGS = -I m4 | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
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| #include <bgpparser.h> | ||
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| #include "ASSegmentVisitor.h" |
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| @@ -0,0 +1,40 @@ | ||
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| #ifndef _ASCII_ATTRS_VISITOR_H_ | ||
| #define _ASCII_ATTRS_VISITOR_H_ | ||
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| #include <visitors/GJDepthFirst.h> | ||
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| class ASSegmentVisitor : public GJDepthFirst | ||
| { | ||
| virtual boost::any& visit( AttributeTypeASPathSegment &n, boost::any ¶m ) | ||
| { | ||
| string head = ""; | ||
| string tail = ""; | ||
| string sep = " "; | ||
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| switch( n.getPathSegmentType() ) | ||
| { | ||
| case AttributeTypeASPathSegment::AS_SEQUENCE: head = ""; tail=""; sep=" "; break; | ||
| case AttributeTypeASPathSegment::AS_SET: head = "{"; tail="}", sep=","; break; | ||
| case AttributeTypeASPathSegment::AS_CONFED_SEQUENCE: head = "("; tail=")"; sep=" "; break; | ||
| case AttributeTypeASPathSegment::AS_CONFED_SET: head = "["; tail="]"; sep=","; break; | ||
| } | ||
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| ostringstream os; | ||
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| os << head; | ||
| bool isFirst=true; | ||
| BOOST_FOREACH( uint32_t asn, as_seg->getPathSegmentValue() ) | ||
| { | ||
| if( isFirst ) | ||
| isFirst=false; | ||
| else | ||
| os << sep; | ||
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| os << asn; | ||
| } | ||
| os << tail; | ||
| } | ||
| }; | ||
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| #endif |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,2 @@ | ||
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| #include "AsciiBGPVisitor.h" |
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| #include <bgpparser.h> | ||
| #include <visitors/GJVoidDepthFirst.h> | ||
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| #include "AttrsVisitor.h" | ||
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| #include "Params.h" | ||
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| class AsciiBGPVisitor : public AttrsVisitor | ||
| { | ||
| virtual void visit( BGPOpen &n, boost::any ¶m ) | ||
| { | ||
| // prevent visiting optional headers | ||
| } | ||
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| virtual void visit( BGPUpdate &n, boost::any ¶m ) | ||
| { | ||
| BOOST_FOREACH( const BGPAttributePtr &attr, n.getPathAttributes() ) | ||
| { | ||
| attr->accept( *this, param ); | ||
| } | ||
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| param.afi=AFI_IPv4; | ||
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| BOOST_FOREACH( const RoutePtr &route, n.getWithdrawnRoutes() ) | ||
| { | ||
| route->accept( *this, param ); | ||
| } | ||
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| BOOST_FOREACH( const RoutePtr &route, n.getNlriRoutes() ) | ||
| { | ||
| route->accept( *this, param ); | ||
| } | ||
| } | ||
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| virtual void visit( AttributeTypeMPReachNLRI &n, boost::any ¶m ) | ||
| { | ||
| param.afi = n.getAFI( ); | ||
| param.next_hop = FORMAT_IP_ADDRESS( n.getNextHopAddress(), n.getAFI() ); | ||
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| BOOST_FOREACH( const NLRIReachablePtr& route, n.getNLRI() ) | ||
| { | ||
| route->accept( *this, param ); | ||
| } | ||
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| BOOST_FOREACH( const NLRIReachablePtr& route, n.getSNPA() ) | ||
| { | ||
| route->accept( *this, param ); | ||
| } | ||
| } | ||
| virtual void visit( AttributeTypeMPUnreachNLRI &n, boost::any ¶m ) | ||
| { | ||
| param.afi = n.getAFI( ); | ||
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| BOOST_FOREACH( const NLRIUnReachablePtr &route, n.getNLRI() ) | ||
| { | ||
| route->accept( *this, param ); | ||
| } | ||
| } | ||
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| virtual void visit( Route &n, boost::any ¶m ) | ||
| { | ||
| // n.getLength( ) | ||
| // n.getPrefix( ) | ||
| // n.getNumOctets( ) | ||
| // + helper methods available, see Route | ||
| } | ||
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| virtual void visit( NLRIReachable &n, boost::any ¶m ) | ||
| { | ||
| // n.getLength( ) | ||
| // n.getPrefix( ) | ||
| // n.getNumOctets( ) | ||
| // + helper methods available, see Route | ||
| } | ||
| virtual void visit( NLRIUnReachable &n, boost::any ¶m ) | ||
| { | ||
| std::cout | ||
| << param.mrt_type << "|" << param.timestamp << "|" | ||
| << "W" + "|" + param.peer_addr + "|" + param.peer_as + "|" + n.toString( params.afi ) | ||
| << std::endl; | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
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| #include <bgpparser.h> | ||
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| #include <AsciiVisitor.h> |
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