1 files changed, 105 insertions, 0 deletions
diff --git a/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ifc/AbstractInterfaceNatCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ifc/AbstractInterfaceNatCustomizer.java
new file mode 100644
index 000000000..64e714241
--- /dev/null
+++ b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ifc/AbstractInterfaceNatCustomizer.java
@@ -0,0 +1,105 @@
+/*
+ * 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.honeycomb.nat.write.ifc;
+
+import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
+import io.fd.honeycomb.translate.vpp.util.NamingContext;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeature;
+import io.fd.vpp.jvpp.snat.dto.SnatInterfaceAddDelFeatureReply;
+import io.fd.vpp.jvpp.snat.future.FutureJVppSnatFacade;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+
+abstract class AbstractInterfaceNatCustomizer<D extends DataObject> implements JvppReplyConsumer, WriterCustomizer<D> {
+
+    private final FutureJVppSnatFacade jvppSnat;
+    private final NamingContext ifcContext;
+
+    AbstractInterfaceNatCustomizer(@Nonnull final FutureJVppSnatFacade jvppSnat,
+                                   @Nonnull final NamingContext ifcContext) {
+        this.jvppSnat = jvppSnat;
+        this.ifcContext = ifcContext;
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataAfter,
+                                       @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        final String ifcName = id.firstKeyOf(Interface.class).getName();
+        getLog().debug("Enabling " + getType() + " NAT on interface: {}", ifcName);
+        getLog().debug("Enabling " + getType() + " NAT: {}", id);
+
+        final int ifcIndex = ifcContext.getIndex(ifcName, writeContext.getMappingContext());
+        final SnatInterfaceAddDelFeature request = getRequest(ifcIndex, (byte)1);
+        final CompletionStage<SnatInterfaceAddDelFeatureReply> future = jvppSnat.snatInterfaceAddDelFeature(request);
+
+        final SnatInterfaceAddDelFeatureReply reply = getReplyForWrite(future.toCompletableFuture(), id);
+        getLog().debug("NAT " + getType() + " enabled successfully on: {}, reply: {}", ifcName, reply);
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
+                                        @Nonnull final D dataBefore, @Nonnull final D dataAfter,
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
+                new UnsupportedOperationException("Unable to update NAT feature"));
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
+                                        @Nonnull final D dataBefore, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        final String ifcName = id.firstKeyOf(Interface.class).getName();
+        getLog().debug("Disabling " + getType() + " NAT on interface: {}", ifcName);
+        getLog().debug("Disabling " + getType() + " NAT: {}", id);
+
+        final int ifcIndex = ifcContext.getIndex(ifcName, writeContext.getMappingContext());
+        final SnatInterfaceAddDelFeature request = getRequest(ifcIndex, (byte)0);
+        final CompletionStage<SnatInterfaceAddDelFeatureReply> future = jvppSnat.snatInterfaceAddDelFeature(request);
+
+        final SnatInterfaceAddDelFeatureReply reply = getReplyForWrite(future.toCompletableFuture(), id);
+        getLog().debug("NAT " + getType() + " disabled successfully on: {}, reply: {}", ifcName, reply);
+    }
+
+    enum NatType {
+        INBOUND((byte)1), OUTBOUND((byte)0);
+
+        private final byte isInside;
+
+        NatType(final byte isInside) {
+            this.isInside = isInside;
+        }
+    }
+
+    abstract NatType getType();
+    abstract Logger getLog();
+
+    private SnatInterfaceAddDelFeature getRequest(final int ifcIdx, final byte isAdd) {
+        final SnatInterfaceAddDelFeature request = new SnatInterfaceAddDelFeature();
+        request.isAdd = isAdd;
+        request.isInside = getType().isInside;
+        request.swIfIndex = ifcIdx;
+        return request;
+    }
+
+}