| /* |
| * Copyright 2019 Ververica GmbH. |
| * |
| * 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.apache.flink.statefun.flink.core.httpfn; |
| |
| import java.util.concurrent.TimeUnit; |
| import javax.annotation.Nullable; |
| import okhttp3.ConnectionPool; |
| import okhttp3.Dispatcher; |
| import okhttp3.OkHttpClient; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| final class OkHttpUtils { |
| private static final Logger LOG = LoggerFactory.getLogger(OkHttpUtils.class); |
| |
| private OkHttpUtils() {} |
| |
| static OkHttpClient newClient() { |
| Dispatcher dispatcher = new Dispatcher(); |
| dispatcher.setMaxRequestsPerHost(Integer.MAX_VALUE); |
| dispatcher.setMaxRequests(Integer.MAX_VALUE); |
| |
| ConnectionPool connectionPool = new ConnectionPool(1024, 1, TimeUnit.MINUTES); |
| |
| return new OkHttpClient.Builder() |
| .dispatcher(dispatcher) |
| .connectionPool(connectionPool) |
| .followRedirects(true) |
| .followSslRedirects(true) |
| .retryOnConnectionFailure(true) |
| .build(); |
| } |
| |
| static void closeSilently(@Nullable OkHttpClient client) { |
| if (client == null) { |
| return; |
| } |
| final Dispatcher dispatcher = client.dispatcher(); |
| try { |
| dispatcher.executorService().shutdownNow(); |
| } catch (Throwable ignored) { |
| } |
| try { |
| dispatcher.cancelAll(); |
| } catch (Throwable throwable) { |
| LOG.warn("Exception caught while trying to close the HTTP client", throwable); |
| } |
| try { |
| client.connectionPool().evictAll(); |
| } catch (Throwable throwable) { |
| LOG.warn("Exception caught while trying to close the HTTP connection pool", throwable); |
| } |
| } |
| } |