| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.bookkeeper.clients; |
| |
| import io.grpc.Channel; |
| import io.grpc.ClientInterceptors; |
| import io.grpc.ManagedChannel; |
| import java.util.concurrent.CompletableFuture; |
| import org.apache.bookkeeper.clients.config.StorageClientSettings; |
| import org.apache.bookkeeper.clients.impl.container.StorageContainerClientInterceptor; |
| import org.apache.bookkeeper.clients.utils.ClientResources; |
| import org.apache.bookkeeper.clients.utils.GrpcChannels; |
| import org.apache.bookkeeper.clients.utils.RetryUtils; |
| import org.apache.bookkeeper.common.util.AbstractAutoAsyncCloseable; |
| import org.apache.bookkeeper.common.util.OrderedScheduler; |
| import org.apache.bookkeeper.common.util.SharedResourceManager; |
| import org.apache.bookkeeper.common.util.SharedResourceManager.Resource; |
| |
| /** |
| * Simple client implementation base. |
| */ |
| public class SimpleClientBase extends AbstractAutoAsyncCloseable { |
| |
| protected final StorageClientSettings settings; |
| protected final Resource<OrderedScheduler> schedulerResource; |
| protected final OrderedScheduler scheduler; |
| protected final ManagedChannel managedChannel; |
| protected final boolean ownChannel; |
| protected final Channel channel; |
| protected final RetryUtils retryUtils; |
| |
| protected SimpleClientBase(StorageClientSettings settings) { |
| this(settings, ClientResources.create().scheduler()); |
| } |
| |
| protected SimpleClientBase(StorageClientSettings settings, |
| Resource<OrderedScheduler> schedulerResource) { |
| this( |
| settings, |
| schedulerResource, |
| GrpcChannels.createChannelBuilder(settings.serviceUri(), settings).build(), |
| true); |
| } |
| |
| protected SimpleClientBase(StorageClientSettings settings, |
| Resource<OrderedScheduler> schedulerResource, |
| ManagedChannel managedChannel, |
| boolean ownChannel) { |
| this.settings = settings; |
| this.managedChannel = managedChannel; |
| this.ownChannel = ownChannel; |
| this.channel = ClientInterceptors.intercept( |
| managedChannel, |
| new StorageContainerClientInterceptor(0L)); |
| this.schedulerResource = schedulerResource; |
| this.scheduler = SharedResourceManager.shared().get(schedulerResource); |
| this.retryUtils = RetryUtils.create(settings.backoffPolicy(), scheduler); |
| } |
| |
| @Override |
| protected void closeAsyncOnce(CompletableFuture<Void> closeFuture) { |
| if (ownChannel) { |
| managedChannel.shutdown(); |
| } |
| SharedResourceManager.shared().release(schedulerResource, scheduler); |
| closeFuture.complete(null); |
| } |
| } |