| /* |
| * 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.utils; |
| |
| import static org.apache.bookkeeper.common.util.ListenableFutures.fromListenableFuture; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import io.grpc.Status; |
| import io.grpc.StatusException; |
| import io.grpc.StatusRuntimeException; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.function.Predicate; |
| import java.util.function.Supplier; |
| import org.apache.bookkeeper.common.util.Backoff; |
| import org.apache.bookkeeper.common.util.OrderedScheduler; |
| import org.apache.bookkeeper.common.util.Retries; |
| |
| /** |
| * Retry Utils. |
| */ |
| public class RetryUtils { |
| |
| @VisibleForTesting |
| static final Predicate<Throwable> DEFAULT_CLIENT_RETRY_PREDICATE = |
| cause -> shouldRetryOnException(cause); |
| |
| private static boolean shouldRetryOnException(Throwable cause) { |
| if (cause instanceof StatusRuntimeException || cause instanceof StatusException) { |
| Status status; |
| if (cause instanceof StatusException) { |
| status = ((StatusException) cause).getStatus(); |
| } else { |
| status = ((StatusRuntimeException) cause).getStatus(); |
| } |
| switch (status.getCode()) { |
| case INVALID_ARGUMENT: |
| case ALREADY_EXISTS: |
| case PERMISSION_DENIED: |
| case UNAUTHENTICATED: |
| return false; |
| default: |
| return true; |
| } |
| } else if (cause instanceof RuntimeException) { |
| return false; |
| } else { |
| // storage level exceptions |
| return false; |
| } |
| } |
| |
| public static RetryUtils create(Backoff.Policy backoffPolicy, |
| OrderedScheduler scheduler) { |
| return create(DEFAULT_CLIENT_RETRY_PREDICATE, backoffPolicy, scheduler); |
| } |
| |
| public static RetryUtils create(Predicate<Throwable> retryPredicate, |
| Backoff.Policy backoffPolicy, |
| OrderedScheduler scheduler) { |
| return new RetryUtils(retryPredicate, backoffPolicy, scheduler); |
| } |
| |
| private final Predicate<Throwable> retryPredicate; |
| private final Backoff.Policy backoffPolicy; |
| private final OrderedScheduler scheduler; |
| |
| private RetryUtils(Predicate<Throwable> retryPredicate, |
| Backoff.Policy backoffPolicy, |
| OrderedScheduler scheduler) { |
| this.retryPredicate = retryPredicate; |
| this.backoffPolicy = backoffPolicy; |
| this.scheduler = scheduler; |
| } |
| |
| /** |
| * Run the action with retries. |
| * |
| * @param action action to run |
| * @return the result of the action |
| */ |
| public <T> CompletableFuture<T> execute(Supplier<CompletableFuture<T>> action) { |
| return Retries.run( |
| backoffPolicy.toBackoffs(), |
| retryPredicate, |
| action, |
| scheduler |
| ); |
| } |
| |
| /** |
| * Run the action with retries. |
| * |
| * @param action action to run |
| * @return the result of the action |
| */ |
| public <T> CompletableFuture<T> executeListenable(Supplier<ListenableFuture<T>> action) { |
| return Retries.run( |
| backoffPolicy.toBackoffs(), |
| retryPredicate, |
| () -> fromListenableFuture(action.get()), |
| scheduler |
| ); |
| } |
| |
| } |