| /** |
| * 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.tracing; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.io.retry.AtMostOnce; |
| import org.apache.hadoop.ipc.ProtobufHelper; |
| import org.apache.hadoop.ipc.ProtocolSignature; |
| import org.apache.hadoop.ipc.RPC; |
| import org.apache.hadoop.tracing.TraceAdminPB.AddSpanReceiverRequestProto; |
| import org.apache.hadoop.tracing.TraceAdminPB.AddSpanReceiverResponseProto; |
| import org.apache.hadoop.tracing.TraceAdminPB.ListSpanReceiversRequestProto; |
| import org.apache.hadoop.tracing.TraceAdminPB.ListSpanReceiversResponseProto; |
| import org.apache.hadoop.tracing.TraceAdminPB.ConfigPair; |
| import org.apache.hadoop.tracing.TraceAdminPB.RemoveSpanReceiverRequestProto; |
| import org.apache.hadoop.tracing.TraceAdminPB.RemoveSpanReceiverResponseProto; |
| import com.google.protobuf.RpcController; |
| import com.google.protobuf.ServiceException; |
| |
| @InterfaceAudience.Private |
| public class TraceAdminProtocolServerSideTranslatorPB |
| implements TraceAdminProtocolPB, Closeable { |
| private final TraceAdminProtocol server; |
| |
| public TraceAdminProtocolServerSideTranslatorPB(TraceAdminProtocol server) { |
| this.server = server; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| RPC.stopProxy(server); |
| } |
| |
| @Override |
| public ListSpanReceiversResponseProto listSpanReceivers( |
| RpcController controller, ListSpanReceiversRequestProto req) |
| throws ServiceException { |
| try { |
| SpanReceiverInfo[] descs = server.listSpanReceivers(); |
| ListSpanReceiversResponseProto.Builder bld = |
| ListSpanReceiversResponseProto.newBuilder(); |
| for (int i = 0; i < descs.length; ++i) { |
| bld.addDescriptions(TraceAdminPB.SpanReceiverListInfo.newBuilder(). |
| setId(descs[i].getId()). |
| setClassName(descs[i].getClassName()).build()); |
| } |
| return bld.build(); |
| } catch (IOException e) { |
| throw new ServiceException(e); |
| } |
| } |
| |
| @Override |
| public AddSpanReceiverResponseProto addSpanReceiver( |
| RpcController controller, AddSpanReceiverRequestProto req) |
| throws ServiceException { |
| try { |
| SpanReceiverInfoBuilder factory = |
| new SpanReceiverInfoBuilder(req.getClassName()); |
| for (ConfigPair config : req.getConfigList()) { |
| factory.addConfigurationPair(config.getKey(), config.getValue()); |
| } |
| long id = server.addSpanReceiver(factory.build()); |
| return AddSpanReceiverResponseProto.newBuilder().setId(id).build(); |
| } catch (IOException e) { |
| throw new ServiceException(e); |
| } |
| } |
| |
| @Override |
| public RemoveSpanReceiverResponseProto removeSpanReceiver( |
| RpcController controller, RemoveSpanReceiverRequestProto req) |
| throws ServiceException { |
| try { |
| server.removeSpanReceiver(req.getId()); |
| return RemoveSpanReceiverResponseProto.getDefaultInstance(); |
| } catch (IOException e) { |
| throw new ServiceException(e); |
| } |
| } |
| |
| @Override |
| public long getProtocolVersion(String protocol, long clientVersion) |
| throws IOException { |
| return TraceAdminProtocol.versionID; |
| } |
| |
| @Override |
| public ProtocolSignature getProtocolSignature(String protocol, |
| long clientVersion, int clientMethodsHash) throws IOException { |
| if (!protocol.equals(RPC.getProtocolName(TraceAdminProtocolPB.class))) { |
| throw new IOException("Serverside implements " + |
| RPC.getProtocolName(TraceAdminProtocolPB.class) + |
| ". The following requested protocol is unknown: " + protocol); |
| } |
| return ProtocolSignature.getProtocolSignature(clientMethodsHash, |
| RPC.getProtocolVersion(TraceAdminProtocolPB.class), |
| TraceAdminProtocolPB.class); |
| } |
| } |