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 static org.junit.jupiter.api.Assertions.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.util.Iterator;
  import org.apache.bookkeeper.common.concurrent.FutureUtils;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
  import org.junit.jupiter.api.Test;
  
  /**
   * Bookkeeper Client API ledger metadata and ledgers listing test.
   */
  public class LedgerMetadataTest extends BookKeeperClusterTestCase {
  
      public LedgerMetadataTest() {
          super(3);
      }
  
      @Test
      public void testGetLedgerMetadata()
              throws Exception {
  
          ClientConfiguration conf = new ClientConfiguration();
          conf.setMetadataServiceUri(zkUtil.getMetadataServiceUri());
          try (BookKeeper bkc = BookKeeper.newBuilder(conf).build();) {
              long ledgerId;
              try (WriteHandle l = bkc
                      .newCreateLedgerOp()
                      .withDigestType(DigestType.CRC32)
                      .withPassword("testPasswd".getBytes())
                      .execute()
                      .get();) {
                  ledgerId = l.getId();
              }
  
              LedgerMetadata metadata = FutureUtils.result(bkc.getLedgerMetadata(ledgerId));
              assertEquals(ledgerId, metadata.getLedgerId());
              assertEquals(3, metadata.getEnsembleSize());
              assertEquals(2, metadata.getAckQuorumSize());
              assertEquals(2, metadata.getWriteQuorumSize());
              assertArrayEquals("testPasswd".getBytes(), metadata.getPassword());
          }
  
      }
  
      @Test
      public void testListLedgers()
              throws Exception {
          int numOfLedgers = 10;
  
          ClientConfiguration conf = new ClientConfiguration();
          conf.setMetadataServiceUri(zkUtil.getMetadataServiceUri());
  
          try (BookKeeper bkc = BookKeeper.newBuilder(conf).build();) {
              long[] ledgerIds = new long[numOfLedgers];
              for (int i = 0; i < numOfLedgers; i++) {
  
                  try (WriteHandle l = bkc
                          .newCreateLedgerOp()
                          .withDigestType(DigestType.CRC32)
                          .withPassword("testPasswd".getBytes())
                          .execute()
                          .get();) {
                      ledgerIds[i] = l.getId();
                  }
              }
  
              try (ListLedgersResult result = FutureUtils.result(bkc.newListLedgersOp().execute());) {
                  int count = 0;
  
                  for (long ledgerId : result.toIterable()) {
                      assertEquals(ledgerIds[count++], ledgerId);
                  }
  
                  assertEquals(numOfLedgers, count, "Unexpected ledgers count");
                  try {
                      result.iterator();
                      fail("Should thrown error");
                  } catch (IllegalStateException e) {
                      // ok
                  }
                  try {
                      result.toIterable();
                      fail("Should thrown error");
                  } catch (IllegalStateException e) {
                      // ok
                  }
              }
  
              try (ListLedgersResult result = FutureUtils.result(bkc.newListLedgersOp().execute());) {
                  int count = 0;
  
                  for (LedgersIterator iterator = result.iterator(); iterator.hasNext();) {
                      long ledgerId = iterator.next();
                      assertEquals(ledgerIds[count++], ledgerId);
  
                  }
                  assertEquals(numOfLedgers, count, "Unexpected ledgers count");
                  try {
                      result.iterator();
                      fail("Should thrown error");
                  } catch (IllegalStateException e) {
                      // ok
                  }
                  try {
                      result.toIterable();
                      fail("Should thrown error");
                  } catch (IllegalStateException e) {
                      // ok
                  }
              }
          }
  
          // check closed
          {
              ListLedgersResult result = FutureUtils.result(bkc.newListLedgersOp().execute());
              result.close();
              try {
                  result.toIterable();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
  
              try {
                  result.iterator();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
          }
  
          { // iterator
              ListLedgersResult result = FutureUtils.result(bkc.newListLedgersOp().execute());
              LedgersIterator it = result.iterator();
              result.close();
              try {
                  it.hasNext();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
  
              try {
                  it.next();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
          }
  
          { // iterable
              ListLedgersResult result = FutureUtils.result(bkc.newListLedgersOp().execute());
              Iterator<Long> it = result.toIterable().iterator();
              result.close();
              try {
                  it.hasNext();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
  
              try {
                  it.next();
                  fail("Should thrown error");
              } catch (IllegalStateException e) {
                  // ok
              }
          }
      }
  
  }
  