| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * 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 org.onosproject.store.primitives.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| import io.atomix.AtomixClient; |
| import io.atomix.catalyst.transport.Transport; |
| import io.atomix.copycat.client.ConnectionStrategies; |
| import io.atomix.copycat.client.CopycatClient; |
| import io.atomix.copycat.client.CopycatClient.State; |
| import io.atomix.copycat.client.RecoveryStrategies; |
| import io.atomix.copycat.client.ServerSelectionStrategies; |
| import io.atomix.manager.ResourceClient; |
| import io.atomix.manager.ResourceManagerException; |
| import io.atomix.manager.util.ResourceManagerTypeResolver; |
| import io.atomix.resource.ResourceRegistry; |
| import io.atomix.resource.ResourceType; |
| import io.atomix.variables.DistributedLong; |
| |
| import java.util.Collection; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.function.Consumer; |
| import java.util.function.Function; |
| |
| import org.onlab.util.HexString; |
| import org.onosproject.store.primitives.DistributedPrimitiveCreator; |
| import org.onosproject.store.primitives.resources.impl.AtomixConsistentMap; |
| import org.onosproject.store.primitives.resources.impl.AtomixCounter; |
| import org.onosproject.store.primitives.resources.impl.AtomixLeaderElector; |
| import org.onosproject.store.primitives.resources.impl.AtomixWorkQueue; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.AsyncAtomicCounter; |
| import org.onosproject.store.service.AsyncAtomicValue; |
| import org.onosproject.store.service.AsyncConsistentMap; |
| import org.onosproject.store.service.AsyncDistributedSet; |
| import org.onosproject.store.service.AsyncLeaderElector; |
| import org.onosproject.store.service.DistributedPrimitive.Status; |
| import org.onosproject.store.service.PartitionClientInfo; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.WorkQueue; |
| import org.slf4j.Logger; |
| |
| import com.google.common.base.Supplier; |
| import com.google.common.base.Suppliers; |
| |
| /** |
| * StoragePartition client. |
| */ |
| public class StoragePartitionClient implements DistributedPrimitiveCreator, Managed<StoragePartitionClient> { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private final StoragePartition partition; |
| private final Transport transport; |
| private final io.atomix.catalyst.serializer.Serializer serializer; |
| private AtomixClient client; |
| private ResourceClient resourceClient; |
| private static final String ATOMIC_VALUES_CONSISTENT_MAP_NAME = "onos-atomic-values"; |
| private final Supplier<AsyncConsistentMap<String, byte[]>> onosAtomicValuesMap = |
| Suppliers.memoize(() -> newAsyncConsistentMap(ATOMIC_VALUES_CONSISTENT_MAP_NAME, |
| Serializer.using(KryoNamespaces.BASIC))); |
| Function<State, Status> mapper = state -> { |
| switch (state) { |
| case CONNECTED: |
| return Status.ACTIVE; |
| case SUSPENDED: |
| return Status.SUSPENDED; |
| case CLOSED: |
| return Status.INACTIVE; |
| default: |
| throw new IllegalStateException("Unknown state " + state); |
| } |
| }; |
| |
| public StoragePartitionClient(StoragePartition partition, |
| io.atomix.catalyst.serializer.Serializer serializer, |
| Transport transport) { |
| this.partition = partition; |
| this.serializer = serializer; |
| this.transport = transport; |
| } |
| |
| @Override |
| public CompletableFuture<Void> open() { |
| synchronized (StoragePartitionClient.this) { |
| resourceClient = newResourceClient(transport, |
| serializer.clone(), |
| StoragePartition.RESOURCE_TYPES); |
| resourceClient.client().onStateChange(state -> log.debug("Partition {} client state" |
| + " changed to {}", partition.getId(), state)); |
| client = new AtomixClient(resourceClient); |
| } |
| return client.connect(partition.getMemberAddresses()).whenComplete((r, e) -> { |
| if (e == null) { |
| log.info("Successfully started client for partition {}", partition.getId()); |
| } else { |
| log.info("Failed to start client for partition {}", partition.getId(), e); |
| } |
| }).thenApply(v -> null); |
| } |
| |
| @Override |
| public CompletableFuture<Void> close() { |
| return client != null ? client.close() : CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public <K, V> AsyncConsistentMap<K, V> newAsyncConsistentMap(String name, Serializer serializer) { |
| AtomixConsistentMap atomixConsistentMap = client.getResource(name, AtomixConsistentMap.class).join(); |
| Consumer<State> statusListener = state -> { |
| atomixConsistentMap.statusChangeListeners() |
| .forEach(listener -> listener.accept(mapper.apply(state))); |
| }; |
| resourceClient.client().onStateChange(statusListener); |
| AsyncConsistentMap<String, byte[]> rawMap = |
| new DelegatingAsyncConsistentMap<String, byte[]>(atomixConsistentMap) { |
| @Override |
| public String name() { |
| return name; |
| } |
| }; |
| AsyncConsistentMap<K, V> transcodedMap = DistributedPrimitives.<K, V, String, byte[]>newTranscodingMap(rawMap, |
| key -> HexString.toHexString(serializer.encode(key)), |
| string -> serializer.decode(HexString.fromHexString(string)), |
| value -> value == null ? null : serializer.encode(value), |
| bytes -> serializer.decode(bytes)); |
| |
| return transcodedMap; |
| } |
| |
| @Override |
| public <E> AsyncDistributedSet<E> newAsyncDistributedSet(String name, Serializer serializer) { |
| return DistributedPrimitives.newSetFromMap(this.<E, Boolean>newAsyncConsistentMap(name, serializer)); |
| } |
| |
| @Override |
| public AsyncAtomicCounter newAsyncCounter(String name) { |
| DistributedLong distributedLong = client.getLong(name).join(); |
| return new AtomixCounter(name, distributedLong); |
| } |
| |
| @Override |
| public <V> AsyncAtomicValue<V> newAsyncAtomicValue(String name, Serializer serializer) { |
| return new DefaultAsyncAtomicValue<>(name, serializer, onosAtomicValuesMap.get()); |
| } |
| |
| @Override |
| public <E> WorkQueue<E> newWorkQueue(String name, Serializer serializer) { |
| AtomixWorkQueue workQueue = client.getResource(name, AtomixWorkQueue.class).join(); |
| return new DefaultDistributedWorkQueue<>(workQueue, serializer); |
| } |
| |
| @Override |
| public AsyncLeaderElector newAsyncLeaderElector(String name) { |
| AtomixLeaderElector leaderElector = client.getResource(name, AtomixLeaderElector.class) |
| .thenCompose(AtomixLeaderElector::setupCache) |
| .join(); |
| Consumer<State> statusListener = state -> { |
| leaderElector.statusChangeListeners() |
| .forEach(listener -> listener.accept(mapper.apply(state))); |
| }; |
| resourceClient.client().onStateChange(statusListener); |
| return leaderElector; |
| } |
| |
| @Override |
| public Set<String> getAsyncConsistentMapNames() { |
| return client.keys(AtomixConsistentMap.class).join(); |
| } |
| |
| @Override |
| public Set<String> getAsyncAtomicCounterNames() { |
| return client.keys(DistributedLong.class).join(); |
| } |
| |
| @Override |
| public Set<String> getWorkQueueNames() { |
| return client.keys(AtomixWorkQueue.class).join(); |
| } |
| |
| @Override |
| public boolean isOpen() { |
| return resourceClient.client().state() != State.CLOSED; |
| } |
| |
| /** |
| * Returns the {@link PartitionClientInfo information} for this client. |
| * @return partition client information |
| */ |
| public PartitionClientInfo clientInfo() { |
| return new PartitionClientInfo(partition.getId(), |
| partition.getMembers(), |
| resourceClient.client().session().id(), |
| mapper.apply(resourceClient.client().state())); |
| } |
| |
| private ResourceClient newResourceClient(Transport transport, |
| io.atomix.catalyst.serializer.Serializer serializer, |
| Collection<ResourceType> resourceTypes) { |
| ResourceRegistry registry = new ResourceRegistry(); |
| resourceTypes.forEach(registry::register); |
| CopycatClient copycatClient = CopycatClient.builder() |
| .withServerSelectionStrategy(ServerSelectionStrategies.ANY) |
| .withConnectionStrategy(ConnectionStrategies.FIBONACCI_BACKOFF) |
| .withRecoveryStrategy(RecoveryStrategies.RECOVER) |
| .withTransport(transport) |
| .withSerializer(serializer) |
| .build(); |
| copycatClient.serializer().resolve(new ResourceManagerTypeResolver()); |
| for (ResourceType type : registry.types()) { |
| try { |
| type.factory() |
| .newInstance() |
| .createSerializableTypeResolver() |
| .resolve(copycatClient.serializer().registry()); |
| } catch (InstantiationException | IllegalAccessException e) { |
| throw new ResourceManagerException(e); |
| } |
| } |
| return new ResourceClient(new OnosCopycatClient(copycatClient, 5, 100)); |
| } |
| } |