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.bookie.storage.ldb;
  
  import static org.junit.Assert.assertEquals;
  
  import org.apache.bookkeeper.client.BookKeeper;
  import org.apache.bookkeeper.client.BookKeeper.DigestType;
  import org.apache.bookkeeper.client.LedgerHandle;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Unit test for {@link DbLedgerStorageBookieTest}.
   */
  public class DbLedgerStorageBookieTest extends BookKeeperClusterTestCase {
      static final Logger LOG = LoggerFactory.getLogger(DbLedgerStorageBookieTest.class);
  
      public DbLedgerStorageBookieTest() {
          super(1);
          baseConf.setLedgerStorageClass(DbLedgerStorage.class.getName());
          baseConf.setFlushInterval(60000);
          baseConf.setGcWaitTime(60000);
  
          // Leave it empty to pickup default
          baseConf.setProperty(DbLedgerStorage.WRITE_CACHE_MAX_SIZE_MB, "");
  
          // Configure explicitly with a int object
          baseConf.setProperty(DbLedgerStorage.READ_AHEAD_CACHE_MAX_SIZE_MB, 16);
      }
  
      @Test
      public void testRecoveryEmptyLedger() throws Exception {
          LedgerHandle lh1 = bkc.createLedger(1, 1, DigestType.MAC, new byte[0]);
  
          // Force ledger close & recovery
          LedgerHandle lh2 = bkc.openLedger(lh1.getId(), DigestType.MAC, new byte[0]);
  
          assertEquals(0, lh2.getLength());
          assertEquals(-1, lh2.getLastAddConfirmed());
      }
  
      @Test
      public void testV2ReadWrite() throws Exception {
          ClientConfiguration conf = new ClientConfiguration();
          conf.setUseV2WireProtocol(true);
          conf.setMetadataServiceUri(zkUtil.getMetadataServiceUri());
  
          BookKeeper bkc = new BookKeeper(conf);
          LedgerHandle lh1 = bkc.createLedger(1, 1, DigestType.CRC32, new byte[0]);
          lh1.addEntry("Foobar".getBytes());
          lh1.close();
  
          LedgerHandle lh2 = bkc.openLedger(lh1.getId(), DigestType.CRC32, new byte[0]);
          assertEquals(0, lh2.getLastAddConfirmed());
          assertEquals(new String(lh2.readEntries(0, 0).nextElement().getEntry()),
                       "Foobar");
      }
  }
  