1 files changed, 122 insertions, 0 deletions
diff --git a/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/policer/read/InterfacePolicerCustomizer.java b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/policer/read/InterfacePolicerCustomizer.java
new file mode 100644
index 000000000..c681758f1
--- /dev/null
+++ b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/policer/read/InterfacePolicerCustomizer.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2017 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.hc2vpp.policer.read;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.vpp.classifier.context.VppClassifierContextManager;
+import io.fd.honeycomb.translate.ModificationCache;
+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.honeycomb.translate.util.read.cache.DumpCacheManager;
+import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
+import io.fd.vpp.jvpp.core.dto.PolicerClassifyDetailsReplyDump;
+import io.fd.vpp.jvpp.core.dto.PolicerClassifyDump;
+import io.fd.vpp.jvpp.core.future.FutureJVppCore;
+import java.util.Optional;
+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.opendaylight.params.xml.ns.yang._interface.policer.rev170315.PolicerInterfaceStateAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.policer.rev170315._interface.policer.attributes.Policer;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.policer.rev170315._interface.policer.attributes.PolicerBuilder;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+final class InterfacePolicerCustomizer extends FutureJVppCustomizer
+    implements ReaderCustomizer<Policer, PolicerBuilder>,
+    JvppReplyConsumer, ByteDataTranslator {
+
+    private static final byte TABLE_IP4 = 0;
+    private static final byte TABLE_IP6 = 1;
+    private static final byte TABLE_L2 = 2;
+
+    private final DumpCacheManager<PolicerClassifyDetailsReplyDump, Byte> dumpManager;
+    private final NamingContext interfaceContext;
+    private final VppClassifierContextManager classifyTableContext;
+
+    InterfacePolicerCustomizer(@Nonnull final FutureJVppCore futureJVppCore,
+                               @Nonnull final NamingContext interfaceContext,
+                               @Nonnull final VppClassifierContextManager classifyTableContext) {
+        super(futureJVppCore);
+        this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null");
+        this.classifyTableContext = checkNotNull(classifyTableContext, "classifyTableContext should not be null");
+        dumpManager = new DumpCacheManager.DumpCacheManagerBuilder<PolicerClassifyDetailsReplyDump, Byte>()
+            .withExecutor(executor())
+            .acceptOnly(PolicerClassifyDetailsReplyDump.class)
+            .build();
+    }
+
+    private EntityDumpExecutor<PolicerClassifyDetailsReplyDump, Byte> executor() {
+        return (id, type) -> {
+            PolicerClassifyDump request = new PolicerClassifyDump();
+            request.type = type;
+            return getReplyForRead(getFutureJVpp().policerClassifyDump(request).toCompletableFuture(), id);
+        };
+    }
+
+    @Nonnull
+    @Override
+    public PolicerBuilder getBuilder(@Nonnull final InstanceIdentifier<Policer> instanceIdentifier) {
+        return new PolicerBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Policer> id,
+                                      @Nonnull final PolicerBuilder builder,
+                                      @Nonnull final ReadContext ctx)
+        throws ReadFailedException {
+        final String ifcName = id.firstKeyOf(Interface.class).getName();
+        final int ifcIndex = interfaceContext.getIndex(ifcName, ctx.getMappingContext());
+        // FIXME: only first dump will result in jvpp call, so either we improve
+        // DumpCacheManager(HONEYCOMB-348) or we need to do it directly (probably without caching):
+        final Optional<Integer> ip4 = readTableIndex(id, ifcIndex, TABLE_IP4, ctx.getModificationCache());
+        if (ip4.isPresent()) {
+            builder.setIp4Table(classifyTableContext.getTableName(ip4.get(), ctx.getMappingContext()));
+        }
+        final Optional<Integer> ip6 = readTableIndex(id, ifcIndex, TABLE_IP6, ctx.getModificationCache());
+        if (ip6.isPresent()) {
+            builder.setIp6Table(classifyTableContext.getTableName(ip6.get(), ctx.getMappingContext()));
+        }
+        final Optional<Integer> l2 = readTableIndex(id, ifcIndex, TABLE_L2, ctx.getModificationCache());
+        if (l2.isPresent()) {
+            builder.setL2Table(classifyTableContext.getTableName(l2.get(), ctx.getMappingContext()));
+        }
+    }
+
+    private Optional<Integer> readTableIndex(@Nonnull final InstanceIdentifier<Policer> id, final int ifcIndex,
+                                             final byte type,
+                                             final ModificationCache cache) throws ReadFailedException {
+        final com.google.common.base.Optional<PolicerClassifyDetailsReplyDump> dump =
+            dumpManager.getDump(id, cache, type);
+        if (!dump.isPresent() || dump.get().policerClassifyDetails.isEmpty()) {
+            return Optional.empty();
+        }
+        return dump.get().policerClassifyDetails.stream().filter(detail -> detail.swIfIndex == ifcIndex).findFirst()
+            .map(details -> details.tableIndex);
+    }
+
+    @Override
+    public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final Policer policer) {
+        ((PolicerInterfaceStateAugmentationBuilder) builder).setPolicer(policer);
+    }
+}