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.distributedlog.metadata;
  
  import java.util.concurrent.CompletableFuture;
  import org.apache.bookkeeper.common.concurrent.FutureUtils;
  import org.apache.distributedlog.DistributedLogConfiguration;
  import org.apache.distributedlog.logsegment.LogSegmentMetadataStore;
  import org.apache.distributedlog.util.Transaction;
  
  /**
   * Class to update the zookeeper-based log metadata store.
   */
  public class DryrunLogSegmentMetadataStoreUpdater extends LogSegmentMetadataStoreUpdater {
  
      public DryrunLogSegmentMetadataStoreUpdater(DistributedLogConfiguration conf,
                                                  LogSegmentMetadataStore metadataStore) {
          super(conf, metadataStore);
      }
  
      @Override
      public Transaction<Object> transaction() {
          return new Transaction<Object>() {
              @Override
              public void addOp(Op<Object> operation) {
                  // no-op
              }
  
              @Override
              public CompletableFuture<Void> execute() {
                  return FutureUtils.Void();
              }
  
              @Override
              public void abort(Throwable reason) {
                  // no-op
              }
          };
      }
  }
  