@SuppressWarnings({"unchecked"})
  @Inject
  public SimpleRiver(
      RiverName riverName, RiverSettings settings, Client client, ThreadPool threadPool) {
    super(riverName, settings);
    this.client = client;

    if (settings.settings().containsKey("simple")) {
      Map<String, Object> simpleSettings = (Map<String, Object>) settings.settings().get("simple");
      simpleNumber = XContentMapValues.nodeIntegerValue(simpleSettings.get("number"), 100);
      fieldName = XContentMapValues.nodeStringValue(simpleSettings.get("field"), "test");
      poll =
          XContentMapValues.nodeTimeValue(
              simpleSettings.get("poll"), TimeValue.timeValueMinutes(60));
    }

    logger.info(
        "creating simple stream river for [{} numbers] with field [{}]", simpleNumber, fieldName);

    if (settings.settings().containsKey("index")) {
      Map<String, Object> indexSettings = (Map<String, Object>) settings.settings().get("index");
      indexName = XContentMapValues.nodeStringValue(indexSettings.get("index"), riverName.name());
      typeName = XContentMapValues.nodeStringValue(indexSettings.get("type"), "simple_type");
      bulkSize = XContentMapValues.nodeIntegerValue(indexSettings.get("bulk_size"), 100);
      bulkThreshold = XContentMapValues.nodeIntegerValue(indexSettings.get("bulk_threshold"), 10);
    } else {
      indexName = riverName.name();
      typeName = "simple_type";
      bulkSize = 100;
      bulkThreshold = 10;
    }
  }
  @SuppressWarnings("unchecked")
  public static synchronized MongoDBRiverDefinition parseSettings(
      String riverName,
      String riverIndexName,
      RiverSettings settings,
      ScriptService scriptService) {

    logger.trace("Parse river settings for {}", riverName);
    Preconditions.checkNotNull(riverName, "No riverName specified");
    Preconditions.checkNotNull(riverIndexName, "No riverIndexName specified");
    Preconditions.checkNotNull(settings, "No settings specified");

    Builder builder = new Builder();
    builder.riverName(riverName);
    builder.riverIndexName(riverIndexName);

    List<ServerAddress> mongoServers = new ArrayList<ServerAddress>();
    String mongoHost;
    int mongoPort;

    if (settings.settings().containsKey(MongoDBRiver.TYPE)) {
      Map<String, Object> mongoSettings =
          (Map<String, Object>) settings.settings().get(MongoDBRiver.TYPE);
      if (mongoSettings.containsKey(SERVERS_FIELD)) {
        Object mongoServersSettings = mongoSettings.get(SERVERS_FIELD);
        logger.trace("mongoServersSettings: " + mongoServersSettings);
        boolean array = XContentMapValues.isArray(mongoServersSettings);

        if (array) {
          ArrayList<Map<String, Object>> feeds =
              (ArrayList<Map<String, Object>>) mongoServersSettings;
          for (Map<String, Object> feed : feeds) {
            mongoHost = XContentMapValues.nodeStringValue(feed.get(HOST_FIELD), null);
            mongoPort = XContentMapValues.nodeIntegerValue(feed.get(PORT_FIELD), DEFAULT_DB_PORT);
            logger.trace("Server: " + mongoHost + " - " + mongoPort);
            try {
              mongoServers.add(new ServerAddress(mongoHost, mongoPort));
            } catch (UnknownHostException uhEx) {
              logger.warn("Cannot add mongo server {}:{}", uhEx, mongoHost, mongoPort);
            }
          }
        }
      } else {
        mongoHost =
            XContentMapValues.nodeStringValue(mongoSettings.get(HOST_FIELD), DEFAULT_DB_HOST);
        mongoPort =
            XContentMapValues.nodeIntegerValue(mongoSettings.get(PORT_FIELD), DEFAULT_DB_PORT);
        try {
          mongoServers.add(new ServerAddress(mongoHost, mongoPort));
        } catch (UnknownHostException uhEx) {
          logger.warn("Cannot add mongo server {}:{}", uhEx, mongoHost, mongoPort);
        }
      }
      builder.mongoServers(mongoServers);

      MongoClientOptions.Builder mongoClientOptionsBuilder =
          MongoClientOptions.builder().socketKeepAlive(true);

      // MongoDB options
      if (mongoSettings.containsKey(OPTIONS_FIELD)) {
        Map<String, Object> mongoOptionsSettings =
            (Map<String, Object>) mongoSettings.get(OPTIONS_FIELD);
        logger.trace("mongoOptionsSettings: " + mongoOptionsSettings);
        builder.mongoSecondaryReadPreference(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(SECONDARY_READ_PREFERENCE_FIELD), false));
        builder.connectTimeout(
            XContentMapValues.nodeIntegerValue(
                mongoOptionsSettings.get(CONNECT_TIMEOUT), DEFAULT_CONNECT_TIMEOUT));
        builder.socketTimeout(
            XContentMapValues.nodeIntegerValue(
                mongoOptionsSettings.get(SOCKET_TIMEOUT), DEFAULT_SOCKET_TIMEOUT));
        builder.dropCollection(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(DROP_COLLECTION_FIELD), false));
        String isMongos =
            XContentMapValues.nodeStringValue(mongoOptionsSettings.get(IS_MONGOS_FIELD), null);
        if (isMongos != null) {
          builder.isMongos(Boolean.valueOf(isMongos));
        }
        builder.mongoUseSSL(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(SSL_CONNECTION_FIELD), false));
        builder.mongoSSLVerifyCertificate(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(SSL_VERIFY_CERT_FIELD), true));
        builder.advancedTransformation(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(ADVANCED_TRANSFORMATION_FIELD), false));
        builder.skipInitialImport(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(SKIP_INITIAL_IMPORT_FIELD), false));
        builder.connectionsPerHost(
            XContentMapValues.nodeIntegerValue(
                mongoOptionsSettings.get(CONNECTIONS_PER_HOST), DEFAULT_CONNECTIONS_PER_HOST));
        builder.threadsAllowedToBlockForConnectionMultiplier(
            XContentMapValues.nodeIntegerValue(
                mongoOptionsSettings.get(THREADS_ALLOWED_TO_BLOCK_FOR_CONNECTION_MULTIPLIER),
                DEFAULT_THREADS_ALLOWED_TO_BLOCK_FOR_CONNECTION_MULTIPLIER));

        mongoClientOptionsBuilder
            .connectTimeout(builder.connectTimeout)
            .socketTimeout(builder.socketTimeout)
            .connectionsPerHost(builder.connectionsPerHost)
            .threadsAllowedToBlockForConnectionMultiplier(
                builder.threadsAllowedToBlockForConnectionMultiplier);

        if (builder.mongoSecondaryReadPreference) {
          mongoClientOptionsBuilder.readPreference(ReadPreference.secondaryPreferred());
        }

        if (builder.mongoUseSSL) {
          mongoClientOptionsBuilder.socketFactory(getSSLSocketFactory());
        }

        if (mongoOptionsSettings.containsKey(PARENT_TYPES_FIELD)) {
          Set<String> parentTypes = new HashSet<String>();
          Object parentTypesSettings = mongoOptionsSettings.get(PARENT_TYPES_FIELD);
          logger.trace("parentTypesSettings: " + parentTypesSettings);
          boolean array = XContentMapValues.isArray(parentTypesSettings);

          if (array) {
            ArrayList<String> fields = (ArrayList<String>) parentTypesSettings;
            for (String field : fields) {
              logger.trace("Field: " + field);
              parentTypes.add(field);
            }
          }

          builder.parentTypes(parentTypes);
        }

        if (mongoOptionsSettings.containsKey(STORE_STATISTICS_FIELD)) {
          Object storeStatistics = mongoOptionsSettings.get(STORE_STATISTICS_FIELD);
          boolean object = XContentMapValues.isObject(storeStatistics);
          if (object) {
            Map<String, Object> storeStatisticsSettings = (Map<String, Object>) storeStatistics;
            builder.storeStatistics(true);
            builder.statisticsIndexName(
                XContentMapValues.nodeStringValue(
                    storeStatisticsSettings.get(INDEX_OBJECT), riverName + "-stats"));
            builder.statisticsTypeName(
                XContentMapValues.nodeStringValue(
                    storeStatisticsSettings.get(TYPE_FIELD), "stats"));
          } else {
            builder.storeStatistics(XContentMapValues.nodeBooleanValue(storeStatistics, false));
            if (builder.storeStatistics) {
              builder.statisticsIndexName(riverName + "-stats");
              builder.statisticsTypeName("stats");
            }
          }
        }
        // builder.storeStatistics(XContentMapValues.nodeBooleanValue(mongoOptionsSettings.get(STORE_STATISTICS_FIELD),
        // false));
        builder.importAllCollections(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(IMPORT_ALL_COLLECTIONS_FIELD), false));
        builder.disableIndexRefresh(
            XContentMapValues.nodeBooleanValue(
                mongoOptionsSettings.get(DISABLE_INDEX_REFRESH_FIELD), false));
        builder.includeCollection(
            XContentMapValues.nodeStringValue(
                mongoOptionsSettings.get(INCLUDE_COLLECTION_FIELD), ""));

        if (mongoOptionsSettings.containsKey(INCLUDE_FIELDS_FIELD)) {
          Set<String> includeFields = new HashSet<String>();
          Object includeFieldsSettings = mongoOptionsSettings.get(INCLUDE_FIELDS_FIELD);
          logger.trace("includeFieldsSettings: " + includeFieldsSettings);
          boolean array = XContentMapValues.isArray(includeFieldsSettings);

          if (array) {
            ArrayList<String> fields = (ArrayList<String>) includeFieldsSettings;
            for (String field : fields) {
              logger.trace("Field: " + field);
              includeFields.add(field);
            }
          }

          if (!includeFields.contains(MongoDBRiver.MONGODB_ID_FIELD)) {
            includeFields.add(MongoDBRiver.MONGODB_ID_FIELD);
          }
          builder.includeFields(includeFields);
        } else if (mongoOptionsSettings.containsKey(EXCLUDE_FIELDS_FIELD)) {
          Set<String> excludeFields = new HashSet<String>();
          Object excludeFieldsSettings = mongoOptionsSettings.get(EXCLUDE_FIELDS_FIELD);
          logger.trace("excludeFieldsSettings: " + excludeFieldsSettings);
          boolean array = XContentMapValues.isArray(excludeFieldsSettings);

          if (array) {
            ArrayList<String> fields = (ArrayList<String>) excludeFieldsSettings;
            for (String field : fields) {
              logger.trace("Field: " + field);
              excludeFields.add(field);
            }
          }

          builder.excludeFields(excludeFields);
        }

        if (mongoOptionsSettings.containsKey(INITIAL_TIMESTAMP_FIELD)) {
          BSONTimestamp timeStamp = null;
          try {
            Map<String, Object> initalTimestampSettings =
                (Map<String, Object>) mongoOptionsSettings.get(INITIAL_TIMESTAMP_FIELD);
            String scriptType = "js";
            if (initalTimestampSettings.containsKey(INITIAL_TIMESTAMP_SCRIPT_TYPE_FIELD)) {
              scriptType =
                  initalTimestampSettings.get(INITIAL_TIMESTAMP_SCRIPT_TYPE_FIELD).toString();
            }
            if (initalTimestampSettings.containsKey(INITIAL_TIMESTAMP_SCRIPT_FIELD)) {

              ExecutableScript scriptExecutable =
                  scriptService.executable(
                      scriptType,
                      initalTimestampSettings.get(INITIAL_TIMESTAMP_SCRIPT_FIELD).toString(),
                      ScriptService.ScriptType.INLINE,
                      Maps.newHashMap());
              Object ctx = scriptExecutable.run();
              logger.trace("initialTimestamp script returned: {}", ctx);
              if (ctx != null) {
                long timestamp = Long.parseLong(ctx.toString());
                timeStamp = new BSONTimestamp((int) (new Date(timestamp).getTime() / 1000), 1);
              }
            }
          } catch (Throwable t) {
            logger.error("Could not set initial timestamp", t);
          } finally {
            builder.initialTimestamp(timeStamp);
          }
        }
      }
      builder.mongoClientOptions(mongoClientOptionsBuilder.build());

      // Credentials
      if (mongoSettings.containsKey(CREDENTIALS_FIELD)) {
        String dbCredential;
        String mau = "";
        String map = "";
        String maad = "";
        String mlu = "";
        String mlp = "";
        String mlad = "";
        // String mdu = "";
        // String mdp = "";
        Object mongoCredentialsSettings = mongoSettings.get(CREDENTIALS_FIELD);
        boolean array = XContentMapValues.isArray(mongoCredentialsSettings);

        if (array) {
          ArrayList<Map<String, Object>> credentials =
              (ArrayList<Map<String, Object>>) mongoCredentialsSettings;
          for (Map<String, Object> credential : credentials) {
            dbCredential = XContentMapValues.nodeStringValue(credential.get(DB_FIELD), null);
            if (ADMIN_DB_FIELD.equals(dbCredential)) {
              mau = XContentMapValues.nodeStringValue(credential.get(USER_FIELD), null);
              map = XContentMapValues.nodeStringValue(credential.get(PASSWORD_FIELD), null);
              maad = XContentMapValues.nodeStringValue(credential.get(AUTH_FIELD), null);
            } else if (LOCAL_DB_FIELD.equals(dbCredential)) {
              mlu = XContentMapValues.nodeStringValue(credential.get(USER_FIELD), null);
              mlp = XContentMapValues.nodeStringValue(credential.get(PASSWORD_FIELD), null);
              mlad = XContentMapValues.nodeStringValue(credential.get(AUTH_FIELD), null);
              // } else {
              // mdu = XContentMapValues.nodeStringValue(
              // credential.get(USER_FIELD), null);
              // mdp = XContentMapValues.nodeStringValue(
              // credential.get(PASSWORD_FIELD), null);
            }
          }
        }
        builder.mongoAdminUser(mau);
        builder.mongoAdminPassword(map);
        builder.mongoAdminAuthDatabase(maad);
        builder.mongoLocalUser(mlu);
        builder.mongoLocalPassword(mlp);
        builder.mongoLocalAuthDatabase(mlad);
        // mongoDbUser = mdu;
        // mongoDbPassword = mdp;
      }

      builder.mongoDb(XContentMapValues.nodeStringValue(mongoSettings.get(DB_FIELD), riverName));
      builder.mongoCollection(
          XContentMapValues.nodeStringValue(mongoSettings.get(COLLECTION_FIELD), riverName));
      builder.mongoGridFS(
          XContentMapValues.nodeBooleanValue(mongoSettings.get(GRIDFS_FIELD), false));
      if (mongoSettings.containsKey(FILTER_FIELD)) {
        String filter = XContentMapValues.nodeStringValue(mongoSettings.get(FILTER_FIELD), "");
        filter = removePrefix("o.", filter);
        builder.mongoCollectionFilter(convertToBasicDBObject(filter));
        // DBObject bsonObject = (DBObject) JSON.parse(filter);
        // builder.mongoOplogFilter(convertToBasicDBObject(addPrefix("o.",
        // filter)));
        builder.mongoOplogFilter(convertToBasicDBObject(removePrefix("o.", filter)));
        // } else {
        // builder.mongoOplogFilter("");
      }

      if (mongoSettings.containsKey(SCRIPT_FIELD)) {
        String scriptType = "js";
        builder.script(mongoSettings.get(SCRIPT_FIELD).toString());
        if (mongoSettings.containsKey("scriptType")) {
          scriptType = mongoSettings.get("scriptType").toString();
        } else if (mongoSettings.containsKey(SCRIPT_TYPE_FIELD)) {
          scriptType = mongoSettings.get(SCRIPT_TYPE_FIELD).toString();
        }
        builder.scriptType(scriptType);
      }
    } else {
      mongoHost = DEFAULT_DB_HOST;
      mongoPort = DEFAULT_DB_PORT;
      try {
        mongoServers.add(new ServerAddress(mongoHost, mongoPort));
        builder.mongoServers(mongoServers);
      } catch (UnknownHostException e) {
        e.printStackTrace();
      }
      builder.mongoDb(riverName);
      builder.mongoCollection(riverName);
    }

    if (settings.settings().containsKey(INDEX_OBJECT)) {
      Map<String, Object> indexSettings =
          (Map<String, Object>) settings.settings().get(INDEX_OBJECT);
      builder.indexName(
          XContentMapValues.nodeStringValue(indexSettings.get(NAME_FIELD), builder.mongoDb));
      builder.typeName(
          XContentMapValues.nodeStringValue(indexSettings.get(TYPE_FIELD), builder.mongoDb));

      Bulk.Builder bulkBuilder = new Bulk.Builder();
      if (indexSettings.containsKey(BULK_FIELD)) {
        Map<String, Object> bulkSettings = (Map<String, Object>) indexSettings.get(BULK_FIELD);
        int bulkActions =
            XContentMapValues.nodeIntegerValue(
                bulkSettings.get(ACTIONS_FIELD), DEFAULT_BULK_ACTIONS);
        bulkBuilder.bulkActions(bulkActions);
        String size =
            XContentMapValues.nodeStringValue(
                bulkSettings.get(SIZE_FIELD), DEFAULT_BULK_SIZE.toString());
        bulkBuilder.bulkSize(ByteSizeValue.parseBytesSizeValue(size));
        bulkBuilder.concurrentRequests(
            XContentMapValues.nodeIntegerValue(
                bulkSettings.get(CONCURRENT_REQUESTS_FIELD),
                EsExecutors.boundedNumberOfProcessors(ImmutableSettings.EMPTY)));
        bulkBuilder.flushInterval(
            XContentMapValues.nodeTimeValue(
                bulkSettings.get(FLUSH_INTERVAL_FIELD), DEFAULT_FLUSH_INTERVAL));
        builder.throttleSize(
            XContentMapValues.nodeIntegerValue(
                indexSettings.get(THROTTLE_SIZE_FIELD), bulkActions * 5));
      } else {
        int bulkActions =
            XContentMapValues.nodeIntegerValue(
                indexSettings.get(BULK_SIZE_FIELD), DEFAULT_BULK_ACTIONS);
        bulkBuilder.bulkActions(bulkActions);
        bulkBuilder.bulkSize(DEFAULT_BULK_SIZE);
        bulkBuilder.flushInterval(
            XContentMapValues.nodeTimeValue(
                indexSettings.get(BULK_TIMEOUT_FIELD), DEFAULT_FLUSH_INTERVAL));
        bulkBuilder.concurrentRequests(
            XContentMapValues.nodeIntegerValue(
                indexSettings.get(CONCURRENT_BULK_REQUESTS_FIELD),
                EsExecutors.boundedNumberOfProcessors(ImmutableSettings.EMPTY)));
        builder.throttleSize(
            XContentMapValues.nodeIntegerValue(
                indexSettings.get(THROTTLE_SIZE_FIELD), bulkActions * 5));
      }
      builder.bulk(bulkBuilder.build());
    } else {
      builder.indexName(builder.mongoDb);
      builder.typeName(builder.mongoDb);
      builder.bulk(new Bulk.Builder().build());
    }
    return builder.build();
  }