BUG-2982 : moved path-attributes container to grouping

[bgpcep.git] / bgp / parser-impl / src / main / java / org / opendaylight / protocol / bgp / parser / impl / message / update / MPUnreachAttributeParser.java

diff --git a/bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/MPUnreachAttributeParser.java b/bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/MPUnreachAttributeParser.java
index 6ac50915baccf06fa30417dbcc86fb8c5b80070c..d4461265b051b9c82a478288991fe763a1505f47 100644 (file)
--- a/bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/MPUnreachAttributeParser.java
+++ b/bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/MPUnreachAttributeParser.java
@@ -10,29 +10,23 @@ package org.opendaylight.protocol.bgp.parser.impl.message.update;
 import com.google.common.base.Preconditions;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
-import org.opendaylight.protocol.bgp.parser.AttributeFlags;
 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
 import org.opendaylight.protocol.bgp.parser.BGPError;
 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
 import org.opendaylight.protocol.bgp.parser.spi.AttributeParser;
 import org.opendaylight.protocol.bgp.parser.spi.AttributeSerializer;
+import org.opendaylight.protocol.bgp.parser.spi.AttributeUtil;
 import org.opendaylight.protocol.bgp.parser.spi.NlriRegistry;
-import org.opendaylight.protocol.concepts.Ipv4Util;
-import org.opendaylight.protocol.concepts.Ipv6Util;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Prefix;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2Builder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv4Case;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv6Case;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
+import org.opendaylight.protocol.bgp.parser.spi.NlriSerializer;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2Builder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
 import org.opendaylight.yangtools.yang.binding.DataObject;
 
 public final class MPUnreachAttributeParser implements AttributeParser, AttributeSerializer {
     public static final int TYPE = 15;
-    public static final int MAX_ATTR_LENGTH_FOR_SINGLE_BYTE = 127;
 
     private final NlriRegistry reg;
 
@@ -41,55 +35,29 @@ public final class MPUnreachAttributeParser implements AttributeParser, Attribut
     }
 
     @Override
-    public void parseAttribute(final ByteBuf buffer, final PathAttributesBuilder builder) throws BGPDocumentedException {
+    public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder) throws BGPDocumentedException {
         try {
-            final PathAttributes2 a = new PathAttributes2Builder().setMpUnreachNlri(this.reg.parseMpUnreach(buffer)).build();
-            builder.addAugmentation(PathAttributes2.class, a);
+            final Attributes2 a = new Attributes2Builder().setMpUnreachNlri(this.reg.parseMpUnreach(buffer)).build();
+            builder.addAugmentation(Attributes2.class, a);
         } catch (final BGPParsingException e) {
             throw new BGPDocumentedException("Could not parse MP_UNREACH_NLRI", BGPError.OPT_ATTR_ERROR, e);
         }
     }
 
     @Override
-    public void serializeAttribute(DataObject attribute, ByteBuf byteAggregator) {
-        PathAttributes pathAttributes = (PathAttributes) attribute;
-        PathAttributes2 pathAttributes2 = pathAttributes.getAugmentation(PathAttributes2.class);
+    public void serializeAttribute(final DataObject attribute, final ByteBuf byteAggregator) {
+        Preconditions.checkArgument(attribute instanceof Attributes, "Attribute parameter is not a PathAttribute object.");
+        final Attributes pathAttributes = (Attributes) attribute;
+        final Attributes2 pathAttributes2 = pathAttributes.getAugmentation(Attributes2.class);
         if (pathAttributes2 == null) {
             return;
         }
-        MpUnreachNlri mpUnreachNlri = pathAttributes2.getMpUnreachNlri();
-        ByteBuf unreachBuffer = Unpooled.buffer();
+        final MpUnreachNlri mpUnreachNlri = pathAttributes2.getMpUnreachNlri();
+        final ByteBuf unreachBuffer = Unpooled.buffer();
         this.reg.serializeMpUnReach(mpUnreachNlri, unreachBuffer);
-
-        if (mpUnreachNlri.getWithdrawnRoutes() != null) {
-            if (mpUnreachNlri.getWithdrawnRoutes().getDestinationType() instanceof DestinationIpv4Case) {
-                DestinationIpv4Case destinationIpv4Case = (DestinationIpv4Case) mpUnreachNlri.getWithdrawnRoutes().getDestinationType();
-                if (destinationIpv4Case.getDestinationIpv4().getIpv4Prefixes() != null) {
-                    for (Ipv4Prefix ipv4Prefix : destinationIpv4Case.getDestinationIpv4().getIpv4Prefixes()) {
-                        unreachBuffer.writeByte(Ipv4Util.getPrefixLength(ipv4Prefix.getValue()));
-                        unreachBuffer.writeBytes(Ipv4Util.bytesForPrefixByPrefixLength(ipv4Prefix));
-                    }
-                }
-            }
-            if (mpUnreachNlri.getWithdrawnRoutes().getDestinationType() instanceof DestinationIpv6Case) {
-                DestinationIpv6Case destinationIpv6Case = (DestinationIpv6Case) mpUnreachNlri.getWithdrawnRoutes().getDestinationType();
-                if (destinationIpv6Case.getDestinationIpv6().getIpv6Prefixes() != null) {
-                    for (Ipv6Prefix ipv6Prefix : destinationIpv6Case.getDestinationIpv6().getIpv6Prefixes()) {
-                        unreachBuffer.writeByte(Ipv4Util.getPrefixLength(ipv6Prefix.getValue()));
-                        unreachBuffer.writeBytes(Ipv6Util.bytesForPrefixByPrefixLength(ipv6Prefix));
-                    }
-                }
-            }
-        }
-        if (unreachBuffer.writerIndex() > MAX_ATTR_LENGTH_FOR_SINGLE_BYTE) {
-            byteAggregator.writeByte(AttributeFlags.OPTIONAL | AttributeFlags.EXTENDED);
-            byteAggregator.writeByte(TYPE);
-            byteAggregator.writeShort(unreachBuffer.writerIndex());
-        } else {
-            byteAggregator.writeByte(AttributeFlags.OPTIONAL);
-            byteAggregator.writeByte(TYPE);
-            byteAggregator.writeByte(unreachBuffer.writerIndex());
+        for (final NlriSerializer nlriSerializer : this.reg.getSerializers()){
+            nlriSerializer.serializeAttribute(attribute,unreachBuffer);
         }
-        byteAggregator.writeBytes(unreachBuffer);
+        AttributeUtil.formatAttribute(AttributeUtil.OPTIONAL, TYPE, unreachBuffer, byteAggregator);
     }
 }