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diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceCustomizer.java
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+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceCustomizer.java
@@ -0,0 +1,178 @@
+/*
+ * 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 io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
+import io.fd.honeycomb.translate.ModificationCache;
+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.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesStateBuilder;
+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.Interface.AdminStatus;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceBuilder;
+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.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.SwInterfaceDetails;
+import org.openvpp.jvpp.dto.SwInterfaceDetailsReplyDump;
+import org.openvpp.jvpp.dto.SwInterfaceDump;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Customizer for reading ietf-interfaces:interfaces-state/interface.
+ */
+public class InterfaceCustomizer extends FutureJVppCustomizer
+ implements ListReaderCustomizer<Interface, InterfaceKey, InterfaceBuilder> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(InterfaceCustomizer.class);
+ public static final String DUMPED_IFCS_CONTEXT_KEY =
+ InterfaceCustomizer.class.getName() + "dumpedInterfacesDuringGetAllIds";
+
+ private final NamingContext interfaceContext;
+
+ public InterfaceCustomizer(@Nonnull final FutureJVpp jvpp, final NamingContext interfaceContext) {
+ super(jvpp);
+ this.interfaceContext = interfaceContext;
+ }
+
+ @Nonnull
+ @Override
+ public InterfaceBuilder getBuilder(@Nonnull InstanceIdentifier<Interface> id) {
+ return new InterfaceBuilder();
+ }
+
+ @Override
+ public void readCurrentAttributes(@Nonnull InstanceIdentifier<Interface> id, @Nonnull InterfaceBuilder builder,
+ @Nonnull ReadContext ctx) throws ReadFailedException {
+ LOG.debug("Reading attributes for interface: {}", id);
+ final String ifaceName = id.firstKeyOf(id.getTargetType()).getName();
+
+ // Pass cached details from getAllIds to getDetails to avoid additional dumps
+ final SwInterfaceDetails iface = InterfaceUtils.getVppInterfaceDetails(getFutureJVpp(), id, ifaceName,
+ interfaceContext.getIndex(ifaceName, ctx.getMappingContext()), ctx.getModificationCache());
+ LOG.debug("Interface details for interface: {}, details: {}", ifaceName, iface);
+
+ if (!isRegularInterface(iface)) {
+ LOG.debug("Interface: {} is a sub-interface. Ignoring read request.", ifaceName);
+ return;
+ }
+
+ builder.setName(ifaceName);
+ builder.setType(InterfaceUtils.getInterfaceType(new String(iface.interfaceName).intern()));
+ builder.setIfIndex(InterfaceUtils.vppIfIndexToYang(iface.swIfIndex));
+ builder.setAdminStatus(1 == iface.adminUpDown
+ ? AdminStatus.Up
+ : AdminStatus.Down);
+ builder.setOperStatus(1 == iface.linkUpDown
+ ? OperStatus.Up
+ : OperStatus.Down);
+ if (0 != iface.linkSpeed) {
+ builder.setSpeed(InterfaceUtils.vppInterfaceSpeedToYang(iface.linkSpeed));
+ }
+ if (iface.l2AddressLength == 6) {
+ builder.setPhysAddress(new PhysAddress(InterfaceUtils.vppPhysAddrToYang(iface.l2Address)));
+ }
+ LOG.trace("Base attributes read for interface: {} as: {}", ifaceName, builder);
+ }
+
+ @Nonnull
+ @SuppressWarnings("unchecked")
+ public static Map<Integer, SwInterfaceDetails> getCachedInterfaceDump(@Nonnull final ModificationCache ctx) {
+ return ctx.get(DUMPED_IFCS_CONTEXT_KEY) == null
+ ? new HashMap<>()
+ // allow customizers to update the cache
+ : (Map<Integer, SwInterfaceDetails>) ctx.get(DUMPED_IFCS_CONTEXT_KEY);
+ }
+
+ @Nonnull
+ @Override
+ public List<InterfaceKey> getAllIds(@Nonnull final InstanceIdentifier<Interface> id,
+ @Nonnull final ReadContext context) throws ReadFailedException {
+ try {
+ final List<InterfaceKey> interfacesKeys;
+ LOG.trace("Dumping all interfaces to get all IDs");
+
+ final SwInterfaceDump request = new SwInterfaceDump();
+ request.nameFilter = "".getBytes();
+ request.nameFilterValid = 0;
+
+ final CompletableFuture<SwInterfaceDetailsReplyDump> swInterfaceDetailsReplyDumpCompletableFuture =
+ getFutureJVpp().swInterfaceDump(request).toCompletableFuture();
+ final SwInterfaceDetailsReplyDump ifaces =
+ TranslateUtils.getReplyForRead(swInterfaceDetailsReplyDumpCompletableFuture, id);
+
+ if (null == ifaces || null == ifaces.swInterfaceDetails) {
+ LOG.debug("No interfaces for :{} found in VPP", id);
+ return Collections.emptyList();
+ }
+
+ // Cache interfaces dump in per-tx context to later be used in readCurrentAttributes
+ context.getModificationCache().put(DUMPED_IFCS_CONTEXT_KEY, ifaces.swInterfaceDetails.stream()
+ .collect(Collectors.toMap(t -> t.swIfIndex, swInterfaceDetails -> swInterfaceDetails)));
+
+ interfacesKeys = ifaces.swInterfaceDetails.stream()
+ .filter(elt -> elt != null)
+ .map((elt) -> {
+ // Store interface name from VPP in context if not yet present
+ if (!interfaceContext.containsName(elt.swIfIndex, context.getMappingContext())) {
+ interfaceContext.addName(elt.swIfIndex, TranslateUtils.toString(elt.interfaceName),
+ context.getMappingContext());
+ }
+ LOG.trace("Interface with name: {}, VPP name: {} and index: {} found in VPP",
+ interfaceContext.getName(elt.swIfIndex, context.getMappingContext()), elt.interfaceName,
+ elt.swIfIndex);
+
+ return elt;
+ })
+ .filter(InterfaceCustomizer::isRegularInterface) // filter out sub-interfaces
+ .map((elt) -> new InterfaceKey(interfaceContext.getName(elt.swIfIndex, context.getMappingContext())))
+ .collect(Collectors.toList());
+
+ LOG.debug("Interfaces found in VPP: {}", interfacesKeys);
+ return interfacesKeys;
+ } catch (VppBaseCallException e) {
+ LOG.warn("getAllIds for id :{} failed with exception ", id, e);
+ throw new ReadFailedException(id, e);
+ }
+ }
+
+ private static boolean isRegularInterface(final SwInterfaceDetails iface) {
+ return iface.subId == 0;
+ }
+
+ @Override
+ public void merge(@Nonnull final org.opendaylight.yangtools.concepts.Builder<? extends DataObject> builder,
+ @Nonnull final List<Interface> readData) {
+ ((InterfacesStateBuilder) builder).setInterface(readData);
+ }
+
+}