/*
    * 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.giraph.comm;
  
  import org.apache.giraph.comm.netty.NettyClient;
  import org.apache.giraph.comm.netty.NettyServer;
  import org.apache.giraph.comm.netty.handler.SaslServerHandler;
  import org.apache.giraph.comm.netty.handler.WorkerRequestServerHandler;
  import org.apache.giraph.conf.GiraphConfiguration;
  import org.apache.giraph.conf.GiraphConstants;
  import org.apache.giraph.conf.ImmutableClassesGiraphConfiguration;
  import org.apache.giraph.utils.IntNoOpComputation;
  import org.apache.giraph.utils.MockUtils;
  import org.apache.giraph.worker.WorkerInfo;
  import org.apache.hadoop.io.IntWritable;
  import org.apache.hadoop.mapreduce.Mapper.Context;
  import org.junit.Before;
  import org.junit.Test;
  import org.mockito.Mockito;
  
  import com.google.common.collect.Lists;
  
  import java.io.IOException;
  
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  /**
   * Netty connection with mocked authentication.
   */
  public class SaslConnectionTest {
    /** Class configuration */
    private ImmutableClassesGiraphConfiguration conf;
  
    @Before
    public void setUp() {
      GiraphConfiguration tmpConfig = new GiraphConfiguration();
      tmpConfig.setComputationClass(IntNoOpComputation.class);
      GiraphConstants.AUTHENTICATE.set(tmpConfig, true);
      conf = new ImmutableClassesGiraphConfiguration(tmpConfig);
    }
  
    /**
     * Test connecting a single client to a single server.
     *
     * @throws IOException
     */
    @Test
    public void connectSingleClientServer() throws IOException {
      @SuppressWarnings("rawtypes")
      Context context = mock(Context.class);
      when(context.getConfiguration()).thenReturn(conf);
  
      ServerData<IntWritable, IntWritable, IntWritable> serverData =
          MockUtils.createNewServerData(conf, context);
  
      SaslServerHandler.Factory mockedSaslServerFactory =
          Mockito.mock(SaslServerHandler.Factory.class);
  
      SaslServerHandler mockedSaslServerHandler =
          Mockito.mock(SaslServerHandler.class);
      when(mockedSaslServerFactory.newHandler(conf)).
          thenReturn(mockedSaslServerHandler);
  
      WorkerInfo workerInfo = new WorkerInfo();
      workerInfo.setTaskId(-1);
      NettyServer server =
          new NettyServer(conf,
              new WorkerRequestServerHandler.Factory(serverData),
              workerInfo,
              context,
              mockedSaslServerFactory,
              new MockExceptionHandler());
      server.start();
      workerInfo.setInetSocketAddress(server.getMyAddress(), server.getLocalHostOrIp());
  
      NettyClient client = new NettyClient(context, conf, new WorkerInfo(),
          new MockExceptionHandler());
      server.setFlowControl(client.getFlowControl());
      client.connectAllAddresses(Lists.<WorkerInfo>newArrayList(workerInfo));
  
      client.stop();
      server.stop();
   }
 }