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diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/InterfaceStatisticsCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/InterfaceStatisticsCustomizer.java
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+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/InterfaceStatisticsCustomizer.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2019 PANTHEON.tech.
+ *
+ * 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.checkNotNull;
+
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.v3po.read.cache.InterfaceStatisticsManager;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.jvpp.stats.dto.InterfaceStatistics;
+import io.fd.jvpp.stats.dto.InterfaceStatisticsDetails;
+import io.fd.jvpp.stats.dto.InterfaceStatisticsDetailsReplyDump;
+import io.fd.jvpp.stats.dto.InterfaceStatisticsDump;
+import io.fd.jvpp.stats.future.FutureJVppStatsFacade;
+import java.math.BigInteger;
+import java.util.Arrays;
+import java.util.Optional;
+import java.util.concurrent.Future;
+import javax.annotation.Nonnull;
+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.InterfaceBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces._interface.Statistics;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces._interface.StatisticsBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter32;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter64;
+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 InterfaceStatisticsCustomizer implements ReaderCustomizer<Statistics, StatisticsBuilder> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(InterfaceStatisticsCustomizer.class);
+
+ private final NamingContext ifcNamingCtx;
+ private final FutureJVppStatsFacade jvppStats;
+ private final InterfaceStatisticsManager statisticsManager;
+
+ public InterfaceStatisticsCustomizer(final NamingContext ifcNamingCtx,
+ final FutureJVppStatsFacade jvppStats,
+ final InterfaceStatisticsManager statisticsManager) {
+ this.ifcNamingCtx = checkNotNull(ifcNamingCtx, "Naming context should not be null");
+ this.jvppStats = checkNotNull(jvppStats, "JVpp Stats facade should not be null");
+ this.statisticsManager = checkNotNull(statisticsManager, "Statistics Manager should not be null");
+ }
+
+ @Nonnull
+ @Override
+ public StatisticsBuilder getBuilder(@Nonnull final InstanceIdentifier<Statistics> instanceIdentifier) {
+ return new StatisticsBuilder();
+ }
+
+ @Override
+ public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Statistics> instanceIdentifier,
+ @Nonnull final StatisticsBuilder statisticsBuilder,
+ @Nonnull final ReadContext readContext)
+ throws ReadFailedException {
+ if (!statisticsManager.isStatisticsEnabled()) return;
+
+ final InterfaceKey key = instanceIdentifier.firstKeyOf(Interface.class);
+ final int index = ifcNamingCtx.getIndex(key.getName(), readContext.getMappingContext());
+ InterfaceStatisticsDetails stats = getStatisticsDump(instanceIdentifier);
+ if (stats != null) {
+ Optional<InterfaceStatistics> statsDetail =
+ Arrays.asList(stats.interfaceStatistics).stream().filter(elt -> elt.swIfIndex == index).findFirst();
+ if (statsDetail.isPresent()) {
+ InterfaceStatistics detail = statsDetail.get();
+ statisticsBuilder.setOutOctets(new Counter64(BigInteger.valueOf(detail.outBytes)))
+ .setOutUnicastPkts(new Counter64(BigInteger.valueOf(detail.outUnicastPkts)))
+ .setOutMulticastPkts(new Counter64(BigInteger.valueOf(detail.outMulticastPkts)))
+ .setOutBroadcastPkts(new Counter64(BigInteger.valueOf(detail.outBroadcastPkts)))
+ .setOutErrors(new Counter32(new Long(detail.outErrors)))
+ .setInOctets(new Counter64(BigInteger.valueOf(detail.inBytes)))
+ .setInUnicastPkts(new Counter64(BigInteger.valueOf(detail.inUnicastPkts)))
+ .setInMulticastPkts(new Counter64(BigInteger.valueOf(detail.inMulticastPkts)))
+ .setInBroadcastPkts(new Counter64(BigInteger.valueOf(detail.inBroadcastPkts)))
+ .setInErrors(new Counter32(new Long(detail.inErrors)));
+ }
+ }
+ }
+
+ @Override
+ public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final Statistics statistics) {
+ ((InterfaceBuilder) builder).setStatistics(statistics);
+ }
+
+ private InterfaceStatisticsDetails getStatisticsDump(InstanceIdentifier<Statistics> id) throws ReadFailedException {
+ LOG.debug("Sending InterfaceStatisticsDump request...");
+ final InterfaceStatisticsDump request = new InterfaceStatisticsDump();
+
+ final Future<InterfaceStatisticsDetailsReplyDump> replyFuture =
+ jvppStats.interfaceStatisticsDump(request).toCompletableFuture();
+ final InterfaceStatisticsDetailsReplyDump reply;
+ try {
+ reply = replyFuture.get();
+ } catch (Exception e) {
+ throw new ReadFailedException(id, e);
+ }
+
+ if (reply == null || reply.interfaceStatisticsDetails == null) {
+ throw new ReadFailedException(id,
+ new IllegalStateException("Received null response for empty dump: " + reply));
+ }
+ return reply.interfaceStatisticsDetails;
+ }
+}