1 files changed, 147 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/GreCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/GreCustomizer.java
new file mode 100644
index 000000000..3bb0cbdf8
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/GreCustomizer.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2016 Intel 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.v3po.read;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.Ipv4Translator;
+import io.fd.hc2vpp.common.translate.util.Ipv6Translator;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.v3po.read.cache.InterfaceCacheDumpManager;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.Initialized;
+import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
+import io.fd.honeycomb.translate.util.RWUtils;
+import io.fd.jvpp.core.dto.GreTunnelDetails;
+import io.fd.jvpp.core.dto.GreTunnelDetailsReplyDump;
+import io.fd.jvpp.core.dto.GreTunnelDump;
+import io.fd.jvpp.core.future.FutureJVppCore;
+import java.util.concurrent.CompletionStage;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.GreTunnel;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.VppInterfaceAugmentation;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.VppInterfaceAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.Gre;
+import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.GreBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressNoZone;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.InterfaceKey;
+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;
+
+public class GreCustomizer extends FutureJVppCustomizer
+    implements InitializingReaderCustomizer<Gre, GreBuilder>, InterfaceDataTranslator, Ipv4Translator,
+    Ipv6Translator {
+
+    private static final Logger LOG = LoggerFactory.getLogger(GreCustomizer.class);
+    private final NamingContext interfaceContext;
+    private final InterfaceCacheDumpManager dumpManager;
+
+    public GreCustomizer(@Nonnull final FutureJVppCore jvpp,
+                         @Nonnull final NamingContext interfaceContext,
+                         @Nonnull final InterfaceCacheDumpManager dumpManager) {
+        super(jvpp);
+        this.interfaceContext = interfaceContext;
+        this.dumpManager = dumpManager;
+    }
+
+    @Override
+    public void merge(@Nonnull Builder<? extends DataObject> parentBuilder,
+                      @Nonnull Gre readValue) {
+        ((VppInterfaceAugmentationBuilder) parentBuilder).setGre(readValue);
+    }
+
+    @Nonnull
+    @Override
+    public GreBuilder getBuilder(@Nonnull InstanceIdentifier<Gre> id) {
+        return new GreBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Gre> id,
+                                      @Nonnull final GreBuilder builder,
+                                      @Nonnull final ReadContext ctx) throws ReadFailedException {
+        final InterfaceKey key = id.firstKeyOf(Interface.class);
+        final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext());
+        if (!isInterfaceOfType(dumpManager, id, ctx, GreTunnel.class)) {
+            return;
+        }
+
+        LOG.debug("Reading attributes for gre tunnel: {}", key.getName());
+        // Dump just a single
+        final GreTunnelDump request = new GreTunnelDump();
+        request.swIfIndex = index;
+
+        final CompletionStage<GreTunnelDetailsReplyDump> swInterfaceGreDetailsReplyDumpCompletionStage =
+                getFutureJVpp().greTunnelDump(request);
+        final GreTunnelDetailsReplyDump reply =
+                getReplyForRead(swInterfaceGreDetailsReplyDumpCompletionStage.toCompletableFuture(), id);
+
+        // VPP keeps gre tunnel interfaces even after they were deleted (optimization)
+        // However there ar no longer any gre tunnel specific fields assigned to it and this call
+        // returns nothing
+        if (reply == null || reply.greTunnelDetails == null || reply.greTunnelDetails.isEmpty()) {
+            LOG.debug(
+                    "Gre tunnel {}, id {} has no attributes assigned in VPP. Probably is a leftover interface placeholder" +
+                            "after delete", key.getName(), index);
+            return;
+        }
+
+        checkState(reply.greTunnelDetails.size() == 1,
+                "Unexpected number of returned gre tunnels: {} for tunnel: {}", reply.greTunnelDetails,
+                key.getName());
+        LOG.trace("Gre tunnel: {} attributes returned from VPP: {}", key.getName(), reply);
+
+        final GreTunnelDetails swInterfaceGreDetails = reply.greTunnelDetails.get(0);
+        if (swInterfaceGreDetails.tunnel.isIpv6 == 1) {
+            builder.setDst(new IpAddressNoZone(
+                    arrayToIpv4AddressNoZone(swInterfaceGreDetails.tunnel.dst.un.getIp6().ip6Address)));
+            builder.setSrc(new IpAddressNoZone(
+                    arrayToIpv6AddressNoZone(swInterfaceGreDetails.tunnel.src.un.getIp6().ip6Address)));
+        } else {
+            builder.setDst(new IpAddressNoZone(
+                    arrayToIpv4AddressNoZone(swInterfaceGreDetails.tunnel.dst.un.getIp4().ip4Address)));
+            builder.setSrc(new IpAddressNoZone(
+                    arrayToIpv4AddressNoZone(swInterfaceGreDetails.tunnel.src.un.getIp4().ip4Address)));
+        }
+        builder.setOuterFibId((long) swInterfaceGreDetails.tunnel.outerFibId);
+        LOG.debug("Gre tunnel: {}, id: {} attributes read as: {}", key.getName(), index, builder);
+    }
+
+    @Override
+    public Initialized<org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.Gre> init(
+            @Nonnull final InstanceIdentifier<Gre> id, @Nonnull final Gre readValue, @Nonnull final ReadContext ctx) {
+        return Initialized.create(getCfgId(id),
+                new org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.GreBuilder()
+                        .setDst(readValue.getDst())
+                        .setSrc(readValue.getSrc())
+                        .setOuterFibId(readValue.getOuterFibId())
+                        .build());
+    }
+
+    private InstanceIdentifier<org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.Gre> getCfgId(
+            final InstanceIdentifier<Gre> id) {
+        return InterfaceCustomizer.getCfgId(RWUtils.cutId(id, Interface.class))
+                .augmentation(VppInterfaceAugmentation.class)
+                .child(org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190502.interfaces._interface.Gre.class);
+    }
+}