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.server.http.service;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import com.google.common.collect.ImmutableMap;
  import java.util.Base64;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import org.apache.bookkeeper.bookie.BookieResources;
  import org.apache.bookkeeper.client.BookKeeper;
  import org.apache.bookkeeper.client.LedgerHandle;
  import org.apache.bookkeeper.client.api.LedgerMetadata;
  import org.apache.bookkeeper.http.HttpServer;
  import org.apache.bookkeeper.http.service.HttpServiceRequest;
  import org.apache.bookkeeper.http.service.HttpServiceResponse;
  import org.apache.bookkeeper.net.BookieId;
  import org.apache.bookkeeper.stats.StatsProvider;
  import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
  import org.apache.bookkeeper.test.TestStatsProvider;
  import org.apache.commons.lang3.RandomUtils;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Unit tests for {@link ListLedgerService}.
   */
  public class ListLedgerServiceTest extends BookKeeperClusterTestCase {
      private final ObjectMapper mapper = new ObjectMapper();
      private ListLedgerService listLedgerService;
  
      public ListLedgerServiceTest() {
          super(1);
      }
  
      @Override
      @Before
      public void setUp() throws Exception {
          super.setUp();
          StatsProvider provider = new TestStatsProvider();
          listLedgerService = new ListLedgerService(confByIndex(0),
                  BookieResources.createMetadataDriver(confByIndex(0),
                          provider.getStatsLogger("")).getLedgerManagerFactory());
      }
  
      @Test
      public void testEmptyList() throws Exception {
          HttpServiceResponse response = listLedgerService.handle(new HttpServiceRequest());
          assertEquals(response.getStatusCode(), HttpServer.StatusCode.OK.getValue());
          JsonNode json = mapper.readTree(response.getBody());
          assertEquals(0, json.size());
      }
  
      @Test
      public void testListLedgers() throws Exception {
          int ledgerNum = RandomUtils.nextInt(1, 10);
          Map<Long, LedgerMetadata> ledgers = new HashMap<>();
          for (int i = 0; i < ledgerNum; i++) {
              LedgerHandle ledger = bkc.createLedger(1, 1, 1, BookKeeper.DigestType.CRC32, new byte[0]);
              ledgers.put(ledger.getId(), ledger.getLedgerMetadata());
              ledger.close();
          }
  
          HttpServiceResponse response = listLedgerService.handle(new HttpServiceRequest());
          assertEquals(response.getStatusCode(), HttpServer.StatusCode.OK.getValue());
          JsonNode json = mapper.readTree(response.getBody());
          assertEquals(ledgerNum, json.size());
  
          json.fieldNames().forEachRemaining(field -> {
              assertTrue(ledgers.containsKey(Long.parseLong(field)));
              assertTrue(json.get(field).isNull());
          });
      }
  
      @Test
      public void testListLedgersWithMetadata() throws Exception {
          int ledgerNum = RandomUtils.nextInt(1, 10);
          Map<Long, LedgerMetadata> ledgers = new HashMap<>();
          for (int i = 0; i < ledgerNum; i++) {
              LedgerHandle ledger = bkc.createLedger(1, 1, 1, BookKeeper.DigestType.CRC32, new byte[0]);
              ledger.close();
              ledgers.put(ledger.getId(), ledger.getLedgerMetadata());
          }
  
          HttpServiceResponse response = listLedgerService.handle(new HttpServiceRequest(null, HttpServer.Method.GET,
                  ImmutableMap.of("print_metadata", "true")));
          assertEquals(response.getStatusCode(), HttpServer.StatusCode.OK.getValue());
          JsonNode json = mapper.readTree(response.getBody());
          assertEquals(ledgerNum, json.size());
  
          json.fieldNames().forEachRemaining(field -> {
              LedgerMetadata meta = ledgers.get(Long.parseLong(field));
              assertNotNull(meta);
              assertFalse(json.get(field).isNull());
          });
      }
  
      @Test
      public void testListLedgersWithMetadataDecoded() throws Exception {
          int ledgerNum = RandomUtils.nextInt(1, 10);
          Map<Long, LedgerMetadata> ledgers = new HashMap<>();
          for (int i = 0; i < ledgerNum; i++) {
              LedgerHandle ledger = bkc.createLedger(1, 1, 1, BookKeeper.DigestType.CRC32, new byte[0],
                      ImmutableMap.of("test_key", "test_value".getBytes()));
              ledger.close();
              ledgers.put(ledger.getId(), ledger.getLedgerMetadata());
          }
  
          HttpServiceResponse response = listLedgerService.handle(new HttpServiceRequest(null, HttpServer.Method.GET,
                  ImmutableMap.of("print_metadata", "true", "decode_meta", "true")));
          assertEquals(response.getStatusCode(), HttpServer.StatusCode.OK.getValue());
          JsonNode json = mapper.readTree(response.getBody());
          assertEquals(ledgerNum, json.size());
  
          json.fieldNames().forEachRemaining(field -> {
              LedgerMetadata meta = ledgers.get(Long.parseLong(field));
              assertNotNull(meta);
              JsonNode node = json.get(field);
              assertEquals(meta.getMetadataFormatVersion(), node.get("metadataFormatVersion").asInt());
              assertEquals(meta.getEnsembleSize(), node.get("ensembleSize").asInt());
              assertEquals(meta.getWriteQuorumSize(), node.get("writeQuorumSize").asInt());
              assertEquals(meta.getAckQuorumSize(), node.get("ackQuorumSize").asInt());
              assertEquals(meta.getCToken(), node.get("ctoken").asLong());
  //            assertEquals(meta.getCtime(), node.get("ctime").asLong());
              assertEquals(meta.getState().name(), node.get("state").asText());
              assertEquals(meta.isClosed(), node.get("closed").asBoolean());
              assertEquals(meta.getLength(), node.get("length").asLong());
              assertEquals(meta.getLastEntryId(), node.get("lastEntryId").asLong());
              assertEquals(meta.getDigestType().name(), node.get("digestType").asText());
              assertEquals(new String(meta.getPassword()), node.get("password").asText());
  
              for (Map.Entry<String, byte[]> entry : meta.getCustomMetadata().entrySet()) {
                  JsonNode data = node.get("customMetadata").get(entry.getKey());
                  assertArrayEquals(entry.getValue(), Base64.getDecoder().decode(data.asText()));
              }
  
              for (Map.Entry<Long, ? extends List<BookieId>> entry : meta.getAllEnsembles().entrySet()) {
                  JsonNode members = node.get("allEnsembles")
                          .get(String.valueOf(entry.getKey()));
                  assertEquals(1, entry.getValue().size());
                  assertEquals(entry.getValue().size(), members.size());
                  JsonNode member = members.get(0);
                  assertEquals(entry.getValue().get(0).getId(), member.get("id").asText());
              }
          });
      }
  }
  