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.api;
  
  import java.util.concurrent.TimeUnit;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
  import org.apache.bookkeeper.util.TestUtils;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Tests about ExplicitLAC and {@link Handle} API.
   */
  public class ExplicitLACWithWriteHandleAPITest extends BookKeeperClusterTestCase {
  
      private static final Logger LOG = LoggerFactory.getLogger(ExplicitLACWithWriteHandleAPITest.class);
  
      public ExplicitLACWithWriteHandleAPITest() {
          super(1);
      }
  
      @Test
      public void testUseExplicitLAC() throws Exception {
          ClientConfiguration conf = new ClientConfiguration(baseClientConf);
          conf.setExplictLacInterval(1000);
          try (BookKeeper bkc = BookKeeper
                  .newBuilder(conf)
                  .build();) {
              try (WriteHandle writer = bkc.newCreateLedgerOp()
                      .withAckQuorumSize(1)
                      .withEnsembleSize(1)
                      .withPassword(new byte[0])
                      .withWriteQuorumSize(1)
                      .execute()
                      .get();) {
                  writer.append("foo".getBytes("utf-8"));
                  writer.append("foo".getBytes("utf-8"));
                  writer.append("foo".getBytes("utf-8"));
                  long expectedLastAddConfirmed = writer.append("foo".getBytes("utf-8"));
  
                  // since BK 4.12.0 the reader automatically uses ExplicitLAC
                  try (ReadHandle r = bkc.newOpenLedgerOp()
                          .withRecovery(false)
                          .withPassword(new byte[0])
                          .withLedgerId(writer.getId())
                          .execute()
                          .get()) {
                      TestUtils.assertEventuallyTrue("ExplicitLAC did not ork", () -> {
                          try {
                              long value = r.readLastAddConfirmed();
                              LOG.info("current value " + value + " vs " + expectedLastAddConfirmed);
                              return value == expectedLastAddConfirmed;
                          } catch (Exception ex) {
                              throw new RuntimeException(ex);
                          }
                      }, 30, TimeUnit.SECONDS);
                  }
  
              }
  
          }
      }
  }
  