| /** |
| * 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.hadoop.hbase.client; |
| |
| import static org.apache.hadoop.hbase.util.FutureUtils.addListener; |
| |
| import com.google.protobuf.Descriptors.MethodDescriptor; |
| import com.google.protobuf.Message; |
| import com.google.protobuf.RpcCallback; |
| import com.google.protobuf.RpcChannel; |
| import com.google.protobuf.RpcController; |
| import java.io.IOException; |
| import java.util.concurrent.CompletableFuture; |
| import org.apache.hadoop.hbase.client.AsyncRpcRetryingCallerFactory.ServerRequestCallerBuilder; |
| import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils; |
| import org.apache.hadoop.hbase.ipc.HBaseRpcController; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService; |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceRequest; |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceResponse; |
| |
| /** |
| * The implementation of a region server based coprocessor rpc channel. |
| */ |
| @InterfaceAudience.Private |
| public class RegionServerCoprocessorRpcChannelImpl implements RpcChannel { |
| |
| ServerRequestCallerBuilder<Message> callerBuilder; |
| |
| RegionServerCoprocessorRpcChannelImpl(ServerRequestCallerBuilder<Message> callerBuilder) { |
| this.callerBuilder = callerBuilder; |
| } |
| |
| private CompletableFuture<Message> rpcCall(MethodDescriptor method, Message request, |
| Message responsePrototype, HBaseRpcController controller, ClientService.Interface stub) { |
| CompletableFuture<Message> future = new CompletableFuture<>(); |
| CoprocessorServiceRequest csr = |
| CoprocessorRpcUtils.getCoprocessorServiceRequest(method, request); |
| stub.execRegionServerService( |
| controller, |
| csr, |
| new org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback<CoprocessorServiceResponse>() { |
| |
| @Override |
| public void run(CoprocessorServiceResponse resp) { |
| if (controller.failed()) { |
| future.completeExceptionally(controller.getFailed()); |
| } else { |
| try { |
| future.complete(CoprocessorRpcUtils.getResponse(resp, responsePrototype)); |
| } catch (IOException e) { |
| future.completeExceptionally(e); |
| } |
| } |
| } |
| }); |
| return future; |
| } |
| |
| @Override |
| public void callMethod(MethodDescriptor method, RpcController controller, Message request, |
| Message responsePrototype, RpcCallback<Message> done) { |
| addListener( |
| callerBuilder.action((c, s) -> rpcCall(method, request, responsePrototype, c, s)).call(), |
| ((r, e) -> { |
| if (e != null) { |
| ((ClientCoprocessorRpcController) controller).setFailed(e); |
| } |
| done.run(r); |
| })); |
| } |
| } |