1 files changed, 130 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java
new file mode 100644
index 000000000..a9bf069b2
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+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VhostUserCustomizer.java
@@ -0,0 +1,130 @@
+/*
+ * 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.translate.v3po.interfacesstate;
+
+import static io.fd.honeycomb.translate.v3po.interfacesstate.InterfaceUtils.isInterfaceOfType;
+
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
+import io.fd.honeycomb.translate.v3po.util.NamingContext;
+import io.fd.honeycomb.translate.v3po.util.TranslateUtils;
+import java.math.BigInteger;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletionStage;
+import java.util.stream.Collectors;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUserRole;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceStateAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VhostUser;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VhostUserBuilder;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.SwInterfaceVhostUserDetails;
+import org.openvpp.jvpp.dto.SwInterfaceVhostUserDetailsReplyDump;
+import org.openvpp.jvpp.dto.SwInterfaceVhostUserDump;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class VhostUserCustomizer extends FutureJVppCustomizer
+        implements ReaderCustomizer<VhostUser, VhostUserBuilder> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(VhostUserCustomizer.class);
+    public static final String DUMPED_VHOST_USERS_CONTEXT_KEY = VhostUserCustomizer.class.getName() + "dumpedVhostUsersDuringGetAllIds";
+    private NamingContext interfaceContext;
+
+    public VhostUserCustomizer(@Nonnull final FutureJVpp jvpp, @Nonnull final NamingContext interfaceContext) {
+        super(jvpp);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    public void merge(@Nonnull Builder<? extends DataObject> parentBuilder, @Nonnull VhostUser readValue) {
+        ((VppInterfaceStateAugmentationBuilder) parentBuilder).setVhostUser(readValue);
+    }
+
+    @Nonnull
+    @Override
+    public VhostUserBuilder getBuilder(@Nonnull InstanceIdentifier<VhostUser> id) {
+        return new VhostUserBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VhostUser> id,
+                                      @Nonnull final VhostUserBuilder builder,
+                                      @Nonnull final ReadContext ctx) throws ReadFailedException {
+        try {
+            final InterfaceKey key = id.firstKeyOf(Interface.class);
+            final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext());
+            if (!isInterfaceOfType(getFutureJVpp(), ctx.getModificationCache(), id, index,
+                org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser.class)) {
+                return;
+            }
+
+            LOG.debug("Reading attributes for vhpost user interface: {}", key.getName());
+
+            @SuppressWarnings("unchecked")
+            Map<Integer, SwInterfaceVhostUserDetails> mappedVhostUsers =
+                (Map<Integer, SwInterfaceVhostUserDetails>) ctx.getModificationCache().get(DUMPED_VHOST_USERS_CONTEXT_KEY);
+
+            if(mappedVhostUsers == null) {
+                // Full VhostUser dump has to be performed here, no filter or anything is here to help so at least we cache it
+                final SwInterfaceVhostUserDump request = new SwInterfaceVhostUserDump();
+                final CompletionStage<SwInterfaceVhostUserDetailsReplyDump> swInterfaceVhostUserDetailsReplyDumpCompletionStage =
+                    getFutureJVpp().swInterfaceVhostUserDump(request);
+                final SwInterfaceVhostUserDetailsReplyDump reply =
+                    TranslateUtils.getReplyForRead(swInterfaceVhostUserDetailsReplyDumpCompletionStage.toCompletableFuture(), id);
+
+                if(null == reply || null == reply.swInterfaceVhostUserDetails) {
+                    mappedVhostUsers = Collections.emptyMap();
+                } else {
+                    final List<SwInterfaceVhostUserDetails> swInterfaceVhostUserDetails = reply.swInterfaceVhostUserDetails;
+                    // Cache interfaces dump in per-tx context to later be used in readCurrentAttributes
+                    mappedVhostUsers = swInterfaceVhostUserDetails.stream()
+                        .collect(Collectors.toMap(t -> t.swIfIndex, swInterfaceDetails -> swInterfaceDetails));
+                }
+
+                ctx.getModificationCache().put(DUMPED_VHOST_USERS_CONTEXT_KEY, mappedVhostUsers);
+            }
+
+            // Relying here that parent InterfaceCustomizer was invoked first to fill in the context with initial ifc mapping
+            final SwInterfaceVhostUserDetails swInterfaceVhostUserDetails = mappedVhostUsers.get(index);
+            LOG.trace("Vhost user interface: {} attributes returned from VPP: {}", key.getName(), swInterfaceVhostUserDetails);
+
+            builder.setRole(swInterfaceVhostUserDetails.isServer == 1 ? VhostUserRole.Server : VhostUserRole.Client);
+            builder.setFeatures(BigInteger.valueOf(swInterfaceVhostUserDetails.features));
+            builder.setNumMemoryRegions((long) swInterfaceVhostUserDetails.numRegions);
+            builder.setSocket(TranslateUtils.toString(swInterfaceVhostUserDetails.sockFilename));
+            builder.setVirtioNetHdrSize((long) swInterfaceVhostUserDetails.virtioNetHdrSz);
+            builder.setConnectError(Integer.toString(swInterfaceVhostUserDetails.sockErrno));
+
+            LOG.debug("Vhost user interface: {}, id: {} attributes read as: {}", key.getName(), index, builder);
+        } catch (VppBaseCallException e) {
+            LOG.warn("Failed to readCurrentAttributes for: {}", id, e);
+            throw new ReadFailedException(id, e);
+        }
+    }
+}