test/src/main/java/org/apache/accumulo/test/rpc/SimpleThriftServiceRunner.java

/*
 * 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.accumulo.test.rpc;

import org.apache.accumulo.core.trace.TraceUtil;
import org.apache.accumulo.test.rpc.thrift.SimpleThriftService;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TSimpleServer;

/**
 * A utility for starting a simple thrift server, and providing a corresponding client for in-memory
 * testing of thrift behavior
 */
public class SimpleThriftServiceRunner {

  private SimpleThriftServiceHandler handler = new SimpleThriftServiceHandler();

  private final Mocket mocket;
  private final Thread serviceThread;
  private final TServer server;

  public SimpleThriftServiceRunner(String threadName) {
    this.mocket = new Mocket();
    this.server = createServer();
    this.serviceThread = new Thread(server::serve, threadName);
  }

  public void startService() {
    serviceThread.start();
  }

  public SimpleThriftServiceHandler handler() {
    return handler;
  }

  public SimpleThriftService.Client client() {
    return new SimpleThriftService.Client(new TBinaryProtocol(mocket.getClientTransport()));
  }

  private TServer createServer() {
    TServer.Args args = new TServer.Args(mocket.getServerTransport());
    SimpleThriftService.Iface actualHandler = TraceUtil.wrapService(handler);
    args.processor(new SimpleThriftService.Processor<>(actualHandler));
    args.protocolFactory(new TBinaryProtocol.Factory());
    return new TSimpleServer(args);
  }

  public void stopService() {
    server.stop();
    try {
      serviceThread.join();
    } catch (InterruptedException e) {
      // re-set interrupt flag
      Thread.currentThread().interrupt();
    }
  }

}