| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.resources.impl; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.SimpleFileVisitor; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.time.Instant; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Consumer; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.collect.Lists; |
| import io.atomix.protocols.raft.RaftClient; |
| import io.atomix.protocols.raft.RaftServer; |
| import io.atomix.protocols.raft.ReadConsistency; |
| import io.atomix.protocols.raft.cluster.MemberId; |
| import io.atomix.protocols.raft.cluster.RaftMember; |
| import io.atomix.protocols.raft.proxy.CommunicationStrategy; |
| import io.atomix.protocols.raft.proxy.RaftProxy; |
| import io.atomix.protocols.raft.service.RaftService; |
| import io.atomix.protocols.raft.storage.RaftStorage; |
| import io.atomix.storage.StorageLevel; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.store.primitives.impl.RaftClientCommunicator; |
| import org.onosproject.store.primitives.impl.RaftServerCommunicator; |
| import org.onosproject.store.primitives.impl.StorageNamespaces; |
| import org.onosproject.store.service.Serializer; |
| |
| /** |
| * Base class for various Atomix tests. |
| * |
| * @param <T> the Raft primitive type being tested |
| */ |
| public abstract class AtomixTestBase<T extends AbstractRaftPrimitive> { |
| |
| protected TestClusterCommunicationServiceFactory communicationServiceFactory; |
| protected List<RaftMember> members = Lists.newCopyOnWriteArrayList(); |
| protected List<RaftClient> clients = Lists.newCopyOnWriteArrayList(); |
| protected List<RaftServer> servers = Lists.newCopyOnWriteArrayList(); |
| protected int nextId; |
| |
| /** |
| * Creates the primitive service. |
| * |
| * @return the primitive service |
| */ |
| protected abstract RaftService createService(); |
| |
| /** |
| * Creates a new primitive. |
| * |
| * @param name the primitive name |
| * @return the primitive instance |
| */ |
| protected T newPrimitive(String name) { |
| RaftClient client = createClient(); |
| RaftProxy proxy = client.newProxyBuilder() |
| .withName(name) |
| .withServiceType("test") |
| .withReadConsistency(readConsistency()) |
| .withCommunicationStrategy(communicationStrategy()) |
| .build() |
| .open() |
| .join(); |
| return createPrimitive(proxy); |
| } |
| |
| /** |
| * Creates a new primitive instance. |
| * |
| * @param proxy the primitive proxy |
| * @return the primitive instance |
| */ |
| protected abstract T createPrimitive(RaftProxy proxy); |
| |
| /** |
| * Returns the proxy read consistency. |
| * |
| * @return the primitive read consistency |
| */ |
| protected ReadConsistency readConsistency() { |
| return ReadConsistency.LINEARIZABLE; |
| } |
| |
| /** |
| * Returns the proxy communication strategy. |
| * |
| * @return the primitive communication strategy |
| */ |
| protected CommunicationStrategy communicationStrategy() { |
| return CommunicationStrategy.LEADER; |
| } |
| |
| @Before |
| public void prepare() { |
| members.clear(); |
| clients.clear(); |
| servers.clear(); |
| communicationServiceFactory = new TestClusterCommunicationServiceFactory(); |
| createServers(3); |
| } |
| |
| @After |
| public void cleanup() { |
| shutdown(); |
| } |
| |
| /** |
| * Shuts down clients and servers. |
| */ |
| private void shutdown() { |
| clients.forEach(c -> { |
| try { |
| c.close().get(10, TimeUnit.SECONDS); |
| } catch (Exception e) { |
| } |
| }); |
| |
| servers.forEach(s -> { |
| try { |
| if (s.isRunning()) { |
| s.shutdown().get(10, TimeUnit.SECONDS); |
| } |
| } catch (Exception e) { |
| } |
| }); |
| |
| Path directory = Paths.get("target/primitives/"); |
| if (Files.exists(directory)) { |
| try { |
| Files.walkFileTree(directory, new SimpleFileVisitor<Path>() { |
| @Override |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException { |
| Files.delete(file); |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException { |
| Files.delete(dir); |
| return FileVisitResult.CONTINUE; |
| } |
| }); |
| } catch (IOException e) { |
| } |
| } |
| } |
| |
| /** |
| * Returns the next unique member identifier. |
| * |
| * @return The next unique member identifier. |
| */ |
| private MemberId nextMemberId() { |
| return MemberId.from(String.valueOf(++nextId)); |
| } |
| |
| /** |
| * Returns the next server address. |
| * |
| * @param type The startup member type. |
| * @return The next server address. |
| */ |
| private RaftMember nextMember(RaftMember.Type type) { |
| return new TestMember(nextMemberId(), type); |
| } |
| |
| /** |
| * Creates a set of Raft servers. |
| */ |
| protected List<RaftServer> createServers(int nodes) { |
| List<RaftServer> servers = new ArrayList<>(); |
| |
| for (int i = 0; i < nodes; i++) { |
| members.add(nextMember(RaftMember.Type.ACTIVE)); |
| } |
| |
| CountDownLatch latch = new CountDownLatch(nodes); |
| for (int i = 0; i < nodes; i++) { |
| RaftServer server = createServer(members.get(i)); |
| server.bootstrap(members.stream().map(RaftMember::memberId).collect(Collectors.toList())) |
| .thenRun(latch::countDown); |
| servers.add(server); |
| } |
| |
| try { |
| latch.await(30000, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| throw new IllegalStateException(e); |
| } |
| |
| return servers; |
| } |
| |
| /** |
| * Creates a Raft server. |
| */ |
| private RaftServer createServer(RaftMember member) { |
| RaftServer.Builder builder = RaftServer.newBuilder(member.memberId()) |
| .withType(member.getType()) |
| .withProtocol(new RaftServerCommunicator( |
| "partition-1", |
| Serializer.using(StorageNamespaces.RAFT_PROTOCOL), |
| communicationServiceFactory.newCommunicationService(NodeId.nodeId(member.memberId().id())))) |
| .withStorage(RaftStorage.newBuilder() |
| .withStorageLevel(StorageLevel.MEMORY) |
| .withDirectory(new File(String.format("target/primitives/%s", member.memberId()))) |
| .withSerializer(new AtomixSerializerAdapter(Serializer.using(StorageNamespaces.RAFT_STORAGE))) |
| .withMaxSegmentSize(1024 * 1024) |
| .build()) |
| .addService("test", this::createService); |
| |
| RaftServer server = builder.build(); |
| servers.add(server); |
| return server; |
| } |
| |
| /** |
| * Creates a Raft client. |
| */ |
| private RaftClient createClient() { |
| MemberId memberId = nextMemberId(); |
| RaftClient client = RaftClient.newBuilder() |
| .withMemberId(memberId) |
| .withProtocol(new RaftClientCommunicator( |
| "partition-1", |
| Serializer.using(StorageNamespaces.RAFT_PROTOCOL), |
| communicationServiceFactory.newCommunicationService(NodeId.nodeId(memberId.id())))) |
| .build(); |
| |
| client.connect(members.stream().map(RaftMember::memberId).collect(Collectors.toList())).join(); |
| clients.add(client); |
| return client; |
| } |
| |
| /** |
| * Test member. |
| */ |
| public static class TestMember implements RaftMember { |
| private final MemberId memberId; |
| private final Type type; |
| |
| public TestMember(MemberId memberId, Type type) { |
| this.memberId = memberId; |
| this.type = type; |
| } |
| |
| @Override |
| public MemberId memberId() { |
| return memberId; |
| } |
| |
| @Override |
| public int hash() { |
| return memberId.hashCode(); |
| } |
| |
| @Override |
| public Type getType() { |
| return type; |
| } |
| |
| @Override |
| public void addTypeChangeListener(Consumer<Type> listener) { |
| |
| } |
| |
| @Override |
| public void removeTypeChangeListener(Consumer<Type> listener) { |
| |
| } |
| |
| @Override |
| public Instant getLastUpdated() { |
| return Instant.now(); |
| } |
| @Override |
| public CompletableFuture<Void> promote() { |
| return null; |
| } |
| |
| @Override |
| public CompletableFuture<Void> promote(Type type) { |
| return null; |
| } |
| |
| @Override |
| public CompletableFuture<Void> demote() { |
| return null; |
| } |
| |
| @Override |
| public CompletableFuture<Void> demote(Type type) { |
| return null; |
| } |
| |
| @Override |
| public CompletableFuture<Void> remove() { |
| return null; |
| } |
| } |
| } |