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.activemq.store.kahadb.disk.journal;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  import java.io.File;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.store.kahadb.KahaDBStore;
  import org.apache.activemq.store.kahadb.disk.journal.Journal.JournalDiskSyncStrategy;
  import org.junit.After;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  import org.junit.rules.Timeout;
  
  public class DataFileAppenderSyncStrategyTest  {
  
      @Rule
      public TemporaryFolder dataFileDir = new TemporaryFolder(new File("target"));
  
      @Rule
      public Timeout globalTimeout= new Timeout(10, TimeUnit.SECONDS);
  
      private KahaDBStore store;
      private int defaultJournalLength = 10 * 1024;
  
      @After
      public void after() throws Exception {
          if (store != null) {
              store.stop();
          }
      }
  
      @Test
      public void testPeriodicSync()throws Exception {
          store = configureStore(JournalDiskSyncStrategy.PERIODIC);
          store.start();
          final Journal journal = store.getJournal();
  
          DataFileAppender appender = (DataFileAppender) journal.appender;
          assertTrue(appender.periodicSync);
      }
  
      @Test
      public void testAlwaysSync()throws Exception {
          store = configureStore(JournalDiskSyncStrategy.ALWAYS);
          store.start();
          final Journal journal = store.getJournal();
  
          DataFileAppender appender = (DataFileAppender) journal.appender;
          assertFalse(appender.periodicSync);
      }
  
      @Test
      public void testNeverSync() throws Exception {
          store = configureStore(JournalDiskSyncStrategy.NEVER);
          store.start();
          final Journal journal = store.getJournal();
  
          DataFileAppender appender = (DataFileAppender) journal.appender;
          assertFalse(appender.periodicSync);
      }
  
      private KahaDBStore configureStore(JournalDiskSyncStrategy strategy) throws Exception {
          KahaDBStore store = new KahaDBStore();
          store.setJournalMaxFileLength(defaultJournalLength);
          store.deleteAllMessages();
          store.setDirectory(dataFileDir.getRoot());
          if (strategy != null) {
              store.setJournalDiskSyncStrategy(strategy.name());
          }
  
          return store;
      }
  
  }
  