| /* |
| * 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.flink.statefun.flink.core.nettyclient; |
| |
| import java.net.URI; |
| import javax.annotation.Nullable; |
| import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonProcessingException; |
| import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper; |
| import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.apache.flink.statefun.flink.common.json.StateFunObjectMapper; |
| import org.apache.flink.statefun.flink.core.reqreply.RequestReplyClient; |
| import org.apache.flink.statefun.flink.core.reqreply.RequestReplyClientFactory; |
| |
| public final class NettyRequestReplyClientFactory implements RequestReplyClientFactory { |
| |
| @Nullable private transient NettySharedResources sharedNettyResources; |
| |
| @Override |
| public RequestReplyClient createTransportClient(ObjectNode transportProperties, URI endpointUrl) { |
| NettySharedResources resources = this.sharedNettyResources; |
| if (resources == null) { |
| this.sharedNettyResources = (resources = new NettySharedResources()); |
| } |
| NettyRequestReplySpec clientSpec = parseTransportSpec(transportProperties); |
| return NettyClient.from(resources, clientSpec, endpointUrl); |
| } |
| |
| @Override |
| public void cleanup() { |
| NettySharedResources resources = this.sharedNettyResources; |
| this.sharedNettyResources = null; |
| if (resources != null) { |
| resources.shutdownGracefully(); |
| } |
| } |
| |
| private static NettyRequestReplySpec parseTransportSpec(ObjectNode transportProperties) { |
| try { |
| return OBJ_MAPPER.treeToValue(transportProperties, NettyRequestReplySpec.class); |
| } catch (JsonProcessingException e) { |
| throw new IllegalStateException("Unable to parse Netty transport spec.", e); |
| } |
| } |
| |
| private static final ObjectMapper OBJ_MAPPER = StateFunObjectMapper.create(); |
| } |