content: /*
   * 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.bookkeeper.proto;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.ArgumentMatchers.same;
  import static org.mockito.Mockito.doAnswer;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import io.netty.channel.Channel;
  import io.netty.channel.ChannelHandlerContext;
  import io.netty.channel.ChannelPromise;
  import io.netty.channel.DefaultChannelPromise;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.atomic.AtomicReference;
  import org.apache.bookkeeper.bookie.Bookie;
  import org.apache.bookkeeper.bookie.BookieImpl;
  import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.WriteCallback;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.BKPacketHeader;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.ForceLedgerRequest;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.OperationType;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.ProtocolVersion;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.Request;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.Response;
  import org.apache.bookkeeper.proto.BookkeeperProtocol.StatusCode;
  import org.apache.bookkeeper.stats.NullStatsLogger;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Unit test {@link ForceLedgerProcessorV3}.
   */
  public class ForceLedgerProcessorV3Test {
  
      private Request request;
      private ForceLedgerProcessorV3 processor;
  
      private BookieRequestHandler requestHandler;
      private Channel channel;
      private BookieRequestProcessor requestProcessor;
      private Bookie bookie;
  
      @Before
      public void setup() {
          request = Request.newBuilder()
              .setHeader(BKPacketHeader.newBuilder()
                  .setTxnId(System.currentTimeMillis())
                  .setVersion(ProtocolVersion.VERSION_THREE)
                  .setOperation(OperationType.ADD_ENTRY)
                  .build())
              .setForceLedgerRequest(ForceLedgerRequest.newBuilder()
                  .setLedgerId(System.currentTimeMillis())
                  .build())
              .build();
  
  
          channel = mock(Channel.class);
          when(channel.isOpen()).thenReturn(true);
          when(channel.isActive()).thenReturn(true);
  
          requestHandler = mock(BookieRequestHandler.class);
          ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
          when(ctx.channel()).thenReturn(channel);
          when(requestHandler.ctx()).thenReturn(ctx);
  
          bookie = mock(Bookie.class);
          requestProcessor = mock(BookieRequestProcessor.class);
          when(requestProcessor.getBookie()).thenReturn(bookie);
          when(requestProcessor.getWaitTimeoutOnBackpressureMillis()).thenReturn(-1L);
          when(requestProcessor.getRequestStats()).thenReturn(new RequestStats(NullStatsLogger.INSTANCE));
          processor = new ForceLedgerProcessorV3(
              request,
              requestHandler,
              requestProcessor);
      }
  
      @Test
      public void testForceLedger() throws Exception {
          when(channel.voidPromise()).thenReturn(mock(ChannelPromise.class));
          when(channel.writeAndFlush(any())).thenReturn(mock(ChannelPromise.class));
          doAnswer(invocationOnMock -> {
              WriteCallback wc = invocationOnMock.getArgument(1);
  
              wc.writeComplete(
                  0,
                  request.getForceLedgerRequest().getLedgerId(),
                  BookieImpl.METAENTRY_ID_FORCE_LEDGER,
                  null,
                  null);
              return null;
          }).when(bookie).forceLedger(
              eq(request.getForceLedgerRequest().getLedgerId()),
              any(WriteCallback.class),
              same(requestHandler));
  
          ChannelPromise promise = new DefaultChannelPromise(channel);
          AtomicReference<Object> writtenObject = new AtomicReference<>();
          CountDownLatch latch = new CountDownLatch(1);
          doAnswer(invocationOnMock -> {
              writtenObject.set(invocationOnMock.getArgument(0));
              latch.countDown();
              return promise;
          }).when(channel).writeAndFlush(any());
  
          processor.run();
  
          verify(bookie, times(1))
              .forceLedger(eq(request.getForceLedgerRequest().getLedgerId()),
                      any(WriteCallback.class), same(requestHandler));
          verify(channel, times(1)).writeAndFlush(any(Response.class));
  
          latch.await();
  
          assertTrue(writtenObject.get() instanceof Response);
          Response response = (Response) writtenObject.get();
          assertEquals(StatusCode.EOK, response.getStatus());
      }
  
  }
  