1 files changed, 84 insertions, 0 deletions
diff --git a/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/read/NatInstanceCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/read/NatInstanceCustomizer.java
new file mode 100644
index 000000000..cb639b962
--- /dev/null
+++ b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/read/NatInstanceCustomizer.java
@@ -0,0 +1,84 @@
+/*
+ * 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.read;
+
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
+import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
+import io.fd.vpp.jvpp.snat.dto.SnatStaticMappingDetailsReplyDump;
+import java.util.List;
+import java.util.stream.Collectors;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.NatInstancesBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstance;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstanceBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstanceKey;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Nat instance ID is mapped to VRF-ID in VPP.
+ */
+final class NatInstanceCustomizer implements ListReaderCustomizer<NatInstance, NatInstanceKey, NatInstanceBuilder> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(NatInstanceCustomizer.class);
+
+    private final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager;
+
+    public NatInstanceCustomizer(final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager) {
+        this.dumpCacheManager = dumpCacheManager;
+    }
+
+    @Nonnull
+    @Override
+    public NatInstanceBuilder getBuilder(@Nonnull final InstanceIdentifier<NatInstance> id) {
+        return new NatInstanceBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<NatInstance> id,
+                                      @Nonnull final NatInstanceBuilder builder, @Nonnull final ReadContext ctx)
+            throws ReadFailedException {
+        LOG.trace("Reading current attributes for nat-instance: {}", id);
+        builder.setId(id.firstKeyOf(NatInstance.class).getId());
+    }
+
+    @Nonnull
+    @Override
+    public List<NatInstanceKey> getAllIds(@Nonnull final InstanceIdentifier<NatInstance> id,
+                                          @Nonnull final ReadContext context) throws ReadFailedException {
+        LOG.trace("Listing IDs for all nat-instances");
+        final List<NatInstanceKey> vrfIds =
+                dumpCacheManager.getDump(id, getClass().getName(), context.getModificationCache(), null)
+                        .or(new SnatStaticMappingDetailsReplyDump()).snatStaticMappingDetails.stream()
+                        .map(detail -> detail.vrfId)
+                        .map(vrfId -> new NatInstanceKey((long)vrfId))
+                        .collect(Collectors.toList());
+
+        LOG.debug("List of nat-instance keys (vrf-ids): {}", vrfIds);
+        return vrfIds;
+    }
+
+    @Override
+    public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<NatInstance> readData) {
+        ((NatInstancesBuilder) builder).setNatInstance(readData);
+    }
+}