| /* |
| * 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.drill.exec.rpc.data; |
| |
| import java.util.concurrent.ConcurrentMap; |
| |
| import org.apache.drill.common.AutoCloseables; |
| import org.apache.drill.common.config.DrillConfig; |
| import org.apache.drill.exec.ExecConstants; |
| import org.apache.drill.exec.exception.DrillbitStartupException; |
| import org.apache.drill.exec.memory.BufferAllocator; |
| import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint; |
| import org.apache.drill.exec.rpc.control.WorkEventBus; |
| import org.apache.drill.exec.server.BootStrapContext; |
| import org.apache.drill.exec.work.WorkManager.WorkerBee; |
| |
| import com.google.common.collect.Maps; |
| |
| /** |
| * Manages a connection for each endpoint. |
| */ |
| public class DataConnectionCreator implements AutoCloseable { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(DataConnectionCreator.class); |
| |
| private volatile DataServer server; |
| private final ConcurrentMap<DrillbitEndpoint, DataConnectionManager> connectionManager = Maps.newConcurrentMap(); |
| |
| private final DataConnectionConfig config; |
| |
| public DataConnectionCreator(BootStrapContext context, BufferAllocator allocator, WorkEventBus workBus, |
| WorkerBee bee) throws DrillbitStartupException { |
| config = new DataConnectionConfig(allocator, context, new DataServerRequestHandler(workBus, bee)); |
| |
| // Initialize the singleton instance of DataRpcMetrics. |
| ((DataRpcMetrics) DataRpcMetrics.getInstance()).initialize(config.isEncryptionEnabled(), allocator); |
| } |
| |
| public DrillbitEndpoint start(DrillbitEndpoint partialEndpoint, boolean allowPortHunting) { |
| server = new DataServer(config); |
| int port = partialEndpoint.getControlPort() + 1; |
| DrillConfig drillConfig = config.getBootstrapContext().getConfig(); |
| |
| String bindAddr = drillConfig.getString(ExecConstants.RPC_BIND_ADDR); |
| if (drillConfig.hasPath(ExecConstants.INITIAL_DATA_PORT)) { |
| port = drillConfig.getInt(ExecConstants.INITIAL_DATA_PORT); |
| } |
| port = server.bind(bindAddr, port, allowPortHunting); |
| return partialEndpoint.toBuilder().setDataPort(port).build(); |
| } |
| |
| public DataTunnel getTunnel(DrillbitEndpoint endpoint) { |
| DataConnectionManager newManager = new DataConnectionManager(endpoint, config); |
| DataConnectionManager oldManager = connectionManager.putIfAbsent(endpoint, newManager); |
| if (oldManager != null) { |
| newManager = oldManager; |
| } |
| return new DataTunnel(newManager); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| AutoCloseables.close(server, config.getAllocator()); |
| } |
| |
| } |