1 files changed, 163 insertions, 0 deletions
diff --git a/acl/acl-impl/src/main/java/io/fd/hc2vpp/acl/read/AbstractVppAclCustomizer.java b/acl/acl-impl/src/main/java/io/fd/hc2vpp/acl/read/AbstractVppAclCustomizer.java
new file mode 100644
index 000000000..ed853eeea
--- /dev/null
+++ b/acl/acl-impl/src/main/java/io/fd/hc2vpp/acl/read/AbstractVppAclCustomizer.java
@@ -0,0 +1,163 @@
+/*
+ * 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.hc2vpp.acl.read;
+
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableSet;
+import io.fd.hc2vpp.acl.util.FutureJVppAclCustomizer;
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
+import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
+import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager.DumpCacheManagerBuilder;
+import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
+import io.fd.honeycomb.translate.util.read.cache.TypeAwareIdentifierCacheKeyFactory;
+import io.fd.vpp.jvpp.acl.dto.AclDetails;
+import io.fd.vpp.jvpp.acl.dto.AclDetailsReplyDump;
+import io.fd.vpp.jvpp.acl.dto.AclDump;
+import io.fd.vpp.jvpp.acl.dto.AclInterfaceListDetails;
+import io.fd.vpp.jvpp.acl.dto.AclInterfaceListDetailsReplyDump;
+import io.fd.vpp.jvpp.acl.dto.AclInterfaceListDump;
+import io.fd.vpp.jvpp.acl.future.FutureJVppAclFacade;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+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.yang.types.rev130715.HexString;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.acl.rev161214.vpp.acls.base.attributes.VppAcls;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.acl.rev161214.vpp.acls.base.attributes.VppAclsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang._interface.acl.rev161214.vpp.acls.base.attributes.VppAclsKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev161214.VppAcl;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+abstract class AbstractVppAclCustomizer extends FutureJVppAclCustomizer
+    implements ListReaderCustomizer<VppAcls, VppAclsKey, VppAclsBuilder>, JvppReplyConsumer, ByteDataTranslator {
+
+    private final NamingContext interfaceContext;
+    private final NamingContext standardAclContext;
+
+    private final DumpCacheManager<AclInterfaceListDetailsReplyDump, Integer> aclReferenceDumpManager;
+    private final DumpCacheManager<AclDetailsReplyDump, Integer> aclDumpManager;
+
+    protected AbstractVppAclCustomizer(@Nonnull final FutureJVppAclFacade jVppAclFacade,
+                                       @Nonnull final NamingContext interfaceContext,
+                                       @Nonnull final NamingContext standardAclContext) {
+        super(jVppAclFacade);
+        this.interfaceContext = interfaceContext;
+        this.standardAclContext = standardAclContext;
+
+        aclReferenceDumpManager =
+            new DumpCacheManagerBuilder<AclInterfaceListDetailsReplyDump, Integer>()
+                .withExecutor(createAclReferenceDumpExecutor())
+                // Key needs to contain interface ID to distinguish dumps between interfaces
+                .withCacheKeyFactory(new TypeAwareIdentifierCacheKeyFactory(AclInterfaceListDetailsReplyDump.class,
+                    ImmutableSet.of(Interface.class)))
+                .build();
+
+        aclDumpManager = new DumpCacheManagerBuilder<AclDetailsReplyDump, Integer>()
+            .withExecutor(createAclExecutor())
+            .acceptOnly(AclDetailsReplyDump.class)
+            .build();
+    }
+
+    private EntityDumpExecutor<AclDetailsReplyDump, Integer> createAclExecutor() {
+        return (identifier, params) -> {
+            AclDump request = new AclDump();
+            request.aclIndex = params;
+            return getReplyForRead(getjVppAclFacade().aclDump(request).toCompletableFuture(), identifier);
+        };
+    }
+
+    private EntityDumpExecutor<AclInterfaceListDetailsReplyDump, Integer> createAclReferenceDumpExecutor() {
+        return (identifier, params) -> {
+            AclInterfaceListDump dumpRequest = new AclInterfaceListDump();
+            dumpRequest.swIfIndex = params;
+            return getReplyForRead(getjVppAclFacade().aclInterfaceListDump(dumpRequest).toCompletableFuture(),
+                identifier);
+        };
+    }
+
+    @Nonnull
+    @Override
+    public final List<VppAclsKey> getAllIds(@Nonnull final InstanceIdentifier<VppAcls> id,
+                                            @Nonnull final ReadContext context)
+        throws ReadFailedException {
+
+        final String parentInterfaceName = id.firstKeyOf(Interface.class).getName();
+        final int parentInterfaceIndex = interfaceContext.getIndex(parentInterfaceName, context.getMappingContext());
+
+        final Optional<AclInterfaceListDetailsReplyDump> dumpReply =
+            aclReferenceDumpManager.getDump(id, context.getModificationCache(), parentInterfaceIndex);
+
+        if (dumpReply.isPresent() && !dumpReply.get().aclInterfaceListDetails.isEmpty()) {
+            // if dumpReply is present, then aclInterfaceListDetails contains single element (actually it should not be
+            // dump message in vpp)
+            final AclInterfaceListDetails aclDetails = dumpReply.get().aclInterfaceListDetails.get(0);
+            return filterAcls(aclDetails)
+                .mapToObj(aclIndex -> standardAclContext.getName(aclIndex, context.getMappingContext()))
+                .map(aclName -> new VppAclsKey(aclName, VppAcl.class))
+                .collect(Collectors.toList());
+        } else {
+            return Collections.emptyList();
+        }
+    }
+
+    /**
+     * Streams ids of ACLs.
+     *
+     * @param aclDetails describes ACLs assigned to interface
+     * @return sequence of acl ids
+     */
+    protected abstract IntStream filterAcls(@Nonnull final AclInterfaceListDetails aclDetails);
+
+    @Nonnull
+    @Override
+    public final VppAclsBuilder getBuilder(@Nonnull final InstanceIdentifier<VppAcls> id) {
+        return new VppAclsBuilder();
+    }
+
+    @Override
+    public final void readCurrentAttributes(@Nonnull final InstanceIdentifier<VppAcls> id,
+                                            @Nonnull final VppAclsBuilder builder,
+                                            @Nonnull final ReadContext ctx) throws ReadFailedException {
+        final VppAclsKey vppAclsKey = id.firstKeyOf(VppAcls.class);
+        final String aclName = vppAclsKey.getName();
+        final int aclIndex = standardAclContext.getIndex(aclName, ctx.getMappingContext());
+
+        final Optional<AclDetailsReplyDump> dumpReply =
+            aclDumpManager.getDump(id, ctx.getModificationCache(), aclIndex);
+
+        if (dumpReply.isPresent() && !dumpReply.get().aclDetails.isEmpty()) {
+            // FIXME (model expects hex string, but tag is written and read as ascii string)
+            // decide how tag should be handled (model change might be needed).
+            builder.setName(aclName);
+            builder.setType(vppAclsKey.getType());
+            final AclDetails aclDetails = dumpReply.get().aclDetails.get(0);
+            if (aclDetails.tag != null && aclDetails.tag.length > 0) {
+                builder.setTag(new HexString(printHexBinary(aclDetails.tag)));
+            }
+        } else {
+            throw new ReadFailedException(id,
+                new IllegalArgumentException(String.format("Acl with name %s not found", aclName)));
+        }
+    }
+}