Java tutorial
/* * Copyright 2008-present MongoDB, Inc. * * Licensed 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 com.mongodb; import com.mongodb.connection.Cluster; import com.mongodb.connection.ClusterDescription; import com.mongodb.connection.ServerDescription; import com.mongodb.event.ClusterListener; import com.mongodb.lang.Nullable; import java.util.List; /** * Keeps replica set status. * * @deprecated Prefer {@link MongoClientOptions.Builder#addClusterListener(ClusterListener)} */ @Deprecated public class ReplicaSetStatus { private final Cluster cluster; ReplicaSetStatus(final Cluster cluster) { this.cluster = cluster; } /** * Get the name of the replica set. * * @return the name of the replica set. */ @SuppressWarnings("deprecation") @Nullable public String getName() { List<ServerDescription> any = getClusterDescription().getAnyPrimaryOrSecondary(); return any.isEmpty() ? null : any.get(0).getSetName(); } /** * Gets the ServerAddress of the master server in this replica set. * * @return master or null if don't have one * @throws MongoException if there's a failure */ @SuppressWarnings("deprecation") @Nullable public ServerAddress getMaster() { List<ServerDescription> primaries = getClusterDescription().getPrimaries(); return primaries.isEmpty() ? null : primaries.get(0).getAddress(); } /** * Checks to see if a given server is the primary server in this replica set. * * @param serverAddress the server to compare * @return true if the given ServerAddress is the current Master/Primary */ public boolean isMaster(final ServerAddress serverAddress) { ServerAddress masterServerAddress = getMaster(); return masterServerAddress != null && masterServerAddress.equals(serverAddress); } /** * Gets the maximum size for a BSON object supported by the current master server. Note that this value may change over time depending * on which server is master. * * @return the maximum size, or 0 if not obtained from servers yet. * @throws MongoException if there's a failure */ @SuppressWarnings("deprecation") public int getMaxBsonObjectSize() { List<ServerDescription> primaries = getClusterDescription().getPrimaries(); return primaries.isEmpty() ? ServerDescription.getDefaultMaxDocumentSize() : primaries.get(0).getMaxDocumentSize(); } private ClusterDescription getClusterDescription() { return cluster.getDescription(); } @Override public String toString() { return "ReplicaSetStatus{" + "name=" + getName() + ", cluster=" + getClusterDescription() + '}'; } }