1 files changed, 110 insertions, 0 deletions
diff --git a/fib-management/fib-management-impl/src/main/java/io/fd/hc2vpp/fib/management/services/FibTableServiceImpl.java b/fib-management/fib-management-impl/src/main/java/io/fd/hc2vpp/fib/management/services/FibTableServiceImpl.java
new file mode 100644
index 000000000..01d264189
--- /dev/null
+++ b/fib-management/fib-management-impl/src/main/java/io/fd/hc2vpp/fib/management/services/FibTableServiceImpl.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2018 Bell Canada, Pantheon Technologies 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.fib.management.services;
+
+import static io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor.NO_PARAMS;
+
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.fib.management.FibManagementIIds;
+import io.fd.hc2vpp.fib.management.request.FibTableRequest;
+import io.fd.honeycomb.translate.ModificationCache;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.Ip6FibDetailsReplyDump;
+import io.fd.vpp.jvpp.core.dto.Ip6FibDump;
+import io.fd.vpp.jvpp.core.dto.IpFibDetailsReplyDump;
+import io.fd.vpp.jvpp.core.dto.IpFibDump;
+import io.fd.vpp.jvpp.core.future.FutureJVppCore;
+import java.util.Collections;
+import java.util.stream.Stream;
+import javax.annotation.Nonnegative;
+import javax.annotation.Nonnull;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+// Todo HC2VPP-317: FibTableService was created as a temporary workaround to write Fib tables in VPP.
+// We need to implement proper support for Fib table management.
+public class FibTableServiceImpl extends FutureJVppCustomizer implements FibTableService, JvppReplyConsumer {
+
+    private static final Logger LOG = LoggerFactory.getLogger(FibTableServiceImpl.class);
+    private final DumpCacheManager<IpFibDetailsReplyDump, Void> v4DumpManager;
+    private final DumpCacheManager<Ip6FibDetailsReplyDump, Void> v6DumpManager;
+
+    public FibTableServiceImpl(@Nonnull FutureJVppCore futureJVppCore) {
+        super(futureJVppCore);
+        v4DumpManager = new DumpCacheManager.DumpCacheManagerBuilder<IpFibDetailsReplyDump, Void>()
+                .acceptOnly(IpFibDetailsReplyDump.class)
+                .withExecutor((identifier, params) -> getReplyForRead(
+                        futureJVppCore.ipFibDump(new IpFibDump()).toCompletableFuture(), identifier))
+                .build();
+        v6DumpManager = new DumpCacheManager.DumpCacheManagerBuilder<Ip6FibDetailsReplyDump, Void>()
+                .acceptOnly(Ip6FibDetailsReplyDump.class)
+                .withExecutor((identifier, params) -> getReplyForRead(
+                        futureJVppCore.ip6FibDump(new Ip6FibDump()).toCompletableFuture(), identifier))
+                .build();
+    }
+
+    @Override
+    public void write(InstanceIdentifier<?> identifier, @Nonnegative int tableId, @Nonnull String tableName,
+                      boolean isIpv6) throws WriteFailedException {
+        // Register FIB table in VPP
+        FibTableRequest fibTableRequest = new FibTableRequest(getFutureJVpp());
+        fibTableRequest.setFibName(tableName);
+        fibTableRequest.setIpv6(isIpv6);
+        fibTableRequest.setFibTable(tableId);
+        fibTableRequest.checkValid();
+        try {
+            fibTableRequest.write(identifier);
+            LOG.debug("Fib table written successfully. table-name: {}, table-id: {}, request: {}", tableName, tableId,
+                    fibTableRequest);
+        } catch (WriteFailedException e) {
+            LOG.warn("Fib table write failed. request: {}", fibTableRequest);
+            throw new WriteFailedException(identifier, "Failed to write FIB table to VPP.", e);
+        }
+    }
+
+    @Override
+    public void checkTableExist(@Nonnegative final int index, @Nonnull final ModificationCache cache)
+            throws ReadFailedException, FibTableService.FibTableDoesNotExistException {
+
+        if (Stream.concat(dumpV4FibTableIdsStream(cache), dumpV6FibTableIdsStream(cache))
+                .noneMatch(id -> id == index)) {
+            throw new FibTableService.FibTableDoesNotExistException(index);
+        }
+    }
+
+    private Stream<Integer> dumpV6FibTableIdsStream(final ModificationCache cache) throws ReadFailedException {
+        return v6DumpManager.getDump(FibManagementIIds.FIB_MNGMNT, cache, NO_PARAMS)
+                .toJavaUtil()
+                .map(ip6FibDetailsReplyDump -> ip6FibDetailsReplyDump.ip6FibDetails)
+                .orElse(Collections.emptyList())
+                .stream()
+                .map(ip6FibDetails -> ip6FibDetails.tableId);
+    }
+
+    private Stream<Integer> dumpV4FibTableIdsStream(final ModificationCache cache) throws ReadFailedException {
+        return v4DumpManager.getDump(FibManagementIIds.FIB_MNGMNT, cache, NO_PARAMS)
+                .toJavaUtil()
+                .map(ipFibDetailsReplyDump -> ipFibDetailsReplyDump.ipFibDetails)
+                .orElse(Collections.emptyList())
+                .stream()
+                .map(ipFibDetails -> ipFibDetails.tableId);
+    }
+}