1 files changed, 97 insertions, 0 deletions
diff --git a/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/ControlPlaneProtocolCustomizer.java b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/ControlPlaneProtocolCustomizer.java
new file mode 100644
index 000000000..0a0fa3e47
--- /dev/null
+++ b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/ControlPlaneProtocolCustomizer.java
@@ -0,0 +1,97 @@
+/*
+ * 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;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev180313.Static;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev180313.routing.control.plane.protocols.ControlPlaneProtocol;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev180313.routing.control.plane.protocols.ControlPlaneProtocolKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev180319.RoutingProtocolVppAttr;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Customizer for handling of write operations for {@link ControlPlaneProtocol}
+ */
+final class ControlPlaneProtocolCustomizer
+        implements ListWriterCustomizer<ControlPlaneProtocol, ControlPlaneProtocolKey> {
+
+    private final NamingContext routingProtocolContext;
+
+    ControlPlaneProtocolCustomizer(@Nonnull final NamingContext routingProtocolContext) {
+        this.routingProtocolContext = routingProtocolContext;
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<ControlPlaneProtocol> instanceIdentifier,
+                                       @Nonnull final ControlPlaneProtocol routingProtocol,
+                                       @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        checkIsStatic(routingProtocol);
+
+        final int tableId = extractTableId(routingProtocol);
+        final MappingContext mappingContext = writeContext.getMappingContext();
+        final String newProtocolName = routingProtocol.getName();
+
+        // enclosed in synchronized block to prevent change of state after containsName/before addName
+        synchronized (routingProtocolContext) {
+            if (!routingProtocolContext.containsName(tableId, mappingContext)) {
+                // if not present in mapping,create assignment to table id. This works only with auto-create flag enabled
+                // while using ip_add_del_table
+                routingProtocolContext.addName(tableId, newProtocolName, mappingContext);
+            } else {
+                // prevent to fail while restoring data(trying to remap already mapped name)
+                if (!newProtocolName.equals(routingProtocolContext.getName(tableId, mappingContext))) {
+                    throw new IllegalStateException(String.format(
+                            "An attempt to assign protocol %s to table id %s. Table id already assigned to protocol %s",
+                            newProtocolName, tableId, routingProtocolContext.getName(tableId, mappingContext)));
+                }
+            }
+        }
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<ControlPlaneProtocol> instanceIdentifier,
+                                        @Nonnull final ControlPlaneProtocol routingProtocol,
+                                        @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        routingProtocolContext.removeName(routingProtocol.getName(), writeContext.getMappingContext());
+    }
+
+    /**
+     * Checks whether control plane protocol is static(we support only static ones for now)
+     */
+    private void checkIsStatic(final ControlPlaneProtocol routingProtocol) {
+        checkArgument(routingProtocol.getType() == Static.class, "Only static routes are allowed");
+    }
+
+    private int extractTableId(final ControlPlaneProtocol protocol) {
+        final RoutingProtocolVppAttr vppAttr = protocol.getAugmentation(RoutingProtocolVppAttr.class);
+
+        checkState(vppAttr != null && vppAttr.getVppProtocolAttributes() != null,
+                "Vpp routing protocol attributes not defined");
+
+        return vppAttr.getVppProtocolAttributes().getPrimaryVrf().getValue().intValue();
+    }
+}