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.client;
  
  import com.google.common.collect.Lists;
  import io.netty.buffer.UnpooledByteBufAllocator;
  import java.util.List;
  import java.util.concurrent.CompletableFuture;
  import org.apache.bookkeeper.common.util.OrderedExecutor;
  import org.apache.bookkeeper.net.BookieId;
  import org.apache.bookkeeper.net.BookieSocketAddress;
  import org.apache.bookkeeper.proto.DataFormats.LedgerMetadataFormat.DigestType;
  import org.apache.bookkeeper.proto.MockBookieClient;
  import org.apache.bookkeeper.proto.checksum.DigestManager;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Tests about ReadLastConfirmedOp.
   */
  public class ReadLastConfirmedOpTest {
      private static final Logger log = LoggerFactory.getLogger(ReadLastConfirmedOpTest.class);
      private final BookieId bookie1 = new BookieSocketAddress("bookie1", 3181).toBookieId();
      private final BookieId bookie2 = new BookieSocketAddress("bookie2", 3181).toBookieId();
  
      OrderedExecutor executor = null;
  
      @Before
      public void setup() throws Exception {
          executor = OrderedExecutor.newBuilder()
                  .name("BookKeeperClientWorker")
                  .numThreads(1)
                  .build();
      }
  
      @After
      public void teardown() throws Exception {
          if (executor != null) {
              executor.shutdown();
          }
      }
  
      /**
       * Test for specific bug that was introduced with dcdd1e88.
       */
      @Test
      public void testBookieFailsAfterLedgerMissingOnFirst() throws Exception {
          long ledgerId = 0xf00b;
          List<BookieId> ensemble = Lists.newArrayList(bookie1, bookie2);
          byte[] ledgerKey = new byte[0];
  
          MockBookieClient bookieClient = new MockBookieClient(executor);
          DistributionSchedule schedule = new RoundRobinDistributionSchedule(2, 2, 2);
          DigestManager digestManager = DigestManager.instantiate(ledgerId, ledgerKey,
                                                                  DigestType.CRC32C,
                                                                  UnpooledByteBufAllocator.DEFAULT,
                                                                  true /* useV2 */);
  
          CompletableFuture<Void> blocker = new CompletableFuture<>();
          bookieClient.setPreReadHook((bookie, lId, entryId) -> {
                  if (bookie.equals(bookie1)) {
                      return CompletableFuture.completedFuture(null);
                  } else {
                      return blocker;
                  }
              });
          CompletableFuture<DigestManager.RecoveryData> promise = new CompletableFuture<>();
          ReadLastConfirmedOp op = new ReadLastConfirmedOp(
                  bookieClient, schedule,
                  digestManager, ledgerId, ensemble,
                  ledgerKey,
                  (rc, data) -> {
                      if (rc != BKException.Code.OK) {
                          promise.completeExceptionally(
                                  BKException.create(rc));
                      } else {
                          promise.complete(data);
                      }
                  });
          op.initiateWithFencing();
  
          while (op.getNumResponsesPending() > 1) {
              Thread.sleep(100);
          }
          blocker.completeExceptionally(
                  new BKException.BKBookieHandleNotAvailableException());
          promise.get();
      }
  }
  