1 files changed, 120 insertions, 0 deletions
diff --git a/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/factory/SpecialNextHopRequestFactory.java b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/factory/SpecialNextHopRequestFactory.java
new file mode 100644
index 000000000..2a5ab9821
--- /dev/null
+++ b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/factory/SpecialNextHopRequestFactory.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.hc2vpp.routing.write.factory;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import io.fd.hc2vpp.routing.write.factory.base.ClassifierContextHolder;
+import io.fd.hc2vpp.routing.write.trait.RouteRequestProducer;
+import io.fd.hc2vpp.v3po.vppclassifier.VppClassifierContextManager;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.vpp.jvpp.core.dto.IpAddDelRoute;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.SpecialNextHopGrouping;
+
+public class SpecialNextHopRequestFactory extends ClassifierContextHolder
+        implements RouteRequestProducer {
+
+    private SpecialNextHopRequestFactory(final VppClassifierContextManager classifierContextManager) {
+        super(classifierContextManager);
+    }
+
+    public static SpecialNextHopRequestFactory forClassifierContext(
+            @Nonnull final VppClassifierContextManager classifierContextManager) {
+        return new SpecialNextHopRequestFactory(classifierContextManager);
+    }
+
+    public IpAddDelRoute createIpv4SpecialHopRequest(final boolean add,
+                                                     @Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.Route route,
+                                                     @Nonnull final MappingContext mappingContext,
+                                                     @Nonnull final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
+        checkNotNull(route, "Route cannot be null");
+        checkNotNull(mappingContext, "Mapping Context cannot be null");
+        checkNotNull(flagsVariant, "Flags variant cannot be null");
+
+        return resolveFlags(getSpecialHopRequest(add, route.getDestinationPrefix()), flagsVariant);
+    }
+
+    public IpAddDelRoute createIpv6SpecialHopRequest(final boolean add,
+                                                     @Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv6.Route route,
+                                                     @Nonnull final MappingContext mappingContext,
+                                                     @Nonnull final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
+
+        checkNotNull(route, "Route cannot be null");
+        checkNotNull(mappingContext, "Mapping Context cannot be null");
+        checkNotNull(flagsVariant, "Flags variant cannot be null");
+
+        return resolveFlags(getSpecialHopRequest(add, route.getDestinationPrefix()), flagsVariant);
+    }
+
+    private IpAddDelRoute getSpecialHopRequest(final boolean isAdd, @Nonnull final Ipv6Prefix destinationAddress) {
+
+        return flaglessAddDelRouteRequest(booleanToByte(isAdd), 0, null, DEFAULT_HOP_WEIGHT, BYTE_TRUE,
+                ipv6AddressPrefixToArray(destinationAddress), extractPrefix(destinationAddress.getValue()), BYTE_FALSE,
+                DEFAULT_VNI, DEFAULT_VNI, DEFAULT_CLASSIFY_TABLE_INDEX, BYTE_FALSE);
+    }
+
+    private IpAddDelRoute getSpecialHopRequest(final boolean isAdd, @Nonnull final Ipv4Prefix destinationAddress) {
+        return flaglessAddDelRouteRequest(booleanToByte(isAdd), 0, null, DEFAULT_HOP_WEIGHT, BYTE_FALSE,
+                ipv4AddressPrefixToArray(destinationAddress), extractPrefix(destinationAddress.getValue()), BYTE_FALSE,
+                DEFAULT_VNI, DEFAULT_VNI, DEFAULT_CLASSIFY_TABLE_INDEX, BYTE_FALSE);
+    }
+
+    private IpAddDelRoute resolveFlags(IpAddDelRoute request,
+                                       final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
+        switch (flagsVariant) {
+            case Blackhole:
+                return resolveAsBlackholeVariant(request);
+            case Unreachable:
+                return resolveAsUnreachableVariant(request);
+            case Prohibit:
+                return resolveAsProhibitedVariant(request);
+            case Receive:
+                return resolveAsReceiveVariant(request);
+            default:
+                throw new IllegalArgumentException("Unsupported type");
+        }
+    }
+
+    private IpAddDelRoute resolveAsBlackholeVariant(IpAddDelRoute request) {
+        return bindFlags(request, true, false, false, false);
+    }
+
+    private IpAddDelRoute resolveAsReceiveVariant(IpAddDelRoute request) {
+        return bindFlags(request, false, true, false, false);
+    }
+
+    private IpAddDelRoute resolveAsUnreachableVariant(IpAddDelRoute request) {
+        return bindFlags(request, false, false, true, false);
+    }
+
+    private IpAddDelRoute resolveAsProhibitedVariant(IpAddDelRoute request) {
+        return bindFlags(request, false, false, false, true);
+    }
+
+    private IpAddDelRoute bindFlags(IpAddDelRoute request, final boolean isDrop, final boolean isReceive,
+                                    final boolean isUnreachable, final boolean isProhibited) {
+        request.isDrop = booleanToByte(isDrop);
+        request.isLocal = booleanToByte(isReceive);
+        request.isUnreach = booleanToByte(isUnreachable);
+        request.isProhibit = booleanToByte(isProhibited);
+
+        return request;
+    }
+}