Example usage for com.mongodb ReplicaSetStatus getMaster

Introduction

In this page you can find the example usage for com.mongodb ReplicaSetStatus getMaster.

Prototype

@SuppressWarnings("deprecation")
@Nullable
public ServerAddress getMaster() 

Source Link

Document

Gets the ServerAddress of the master server in this replica set.

Usage

From source file:com.ebay.cloud.cms.sysmgmt.monitor.metrics.MongoMetric.java

License:Apache License

private void snapshot() {
    MongoClient client = dataSource.getMongoInstance();

    Map<String, Object> status = new TreeMap<String, Object>();
    // update driver
    status.put(MetricConstants.MONGO_DRIVER_VERSION, client.getVersion());
    // update status
    ReplicaSetStatus rss = client.getReplicaSetStatus();

    String master = NOT_FOUND;/*  ww w.j av a2s .c om*/
    if (rss != null) {
        status.put(MetricConstants.REPL_STATUS, rss.toString());
        ServerAddress masterServer = rss.getMaster();
        if (masterServer != null) {
            master = masterServer.getHost();
        }
    } else {
        status.put(MetricConstants.REPL_STATUS, "no repl set found!");
    }
    // update mongo cluster master
    status.put(MetricConstants.REPL_MASTER, master);
    // list mongo databases
    Map<String, Object> databaseSizeMap = listDatabases(client);
    String databases = StringUtils.join(databaseSizeMap.keySet(), ',');
    status.put(MetricConstants.REPL_DATABASES, databases);
    status.put(MetricConstants.MONGO_DB_SIZE, databaseSizeMap);

    mongoStatus = status;
}

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From source file:io.debezium.connector.mongodb.ConnectionContext.java

License:Apache License

/**
 * Obtain a client that talks only to the primary node of the replica set.
 * /*  www.jav a 2  s .  c om*/
 * @param replicaSet the replica set information; may not be null
 * @return the client, or {@code null} if no primary could be found for the replica set
 */
protected MongoClient clientForPrimary(ReplicaSet replicaSet) {
    MongoClient replicaSetClient = clientForReplicaSet(replicaSet);
    ReplicaSetStatus rsStatus = replicaSetClient.getReplicaSetStatus();
    if (rsStatus == null) {
        if (!this.useHostsAsSeeds) {
            // No replica set status is available, but it may still be a replica set ...
            return replicaSetClient;
        }
        // This is not a replica set, so there will be no oplog to read ...
        throw new ConnectException(
                "The MongoDB server(s) at '" + replicaSet + "' is not a valid replica set and cannot be used");
    }
    // It is a replica set ...
    ServerAddress primaryAddress = rsStatus.getMaster();
    if (primaryAddress != null) {
        return pool.clientFor(primaryAddress);
    }
    return null;
}

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