Package io.debezium.connector.mongodb

Class ReplicaSetDiscovery

java.lang.Object
io.debezium.connector.mongodb.ReplicaSetDiscovery
@ThreadSafe public class ReplicaSetDiscovery extends Object
A component that monitors a single replica set or the set of replica sets that make up the shards in a sharded cluster.
Author:
Randall Hauch

  • Field Details

    • CONFIG_DATABASE_NAME

      public static final String CONFIG_DATABASE_NAME
      The database that might be used to check for replica set information in a sharded cluster.
      See Also:

    • SHARDS_COLLECTION_NAME

      public static final String SHARDS_COLLECTION_NAME
      See Also:

    • ADMIN_DATABASE_NAME

      public static final String ADMIN_DATABASE_NAME
      The database that might be used to check for member information in a replica set.
      See Also:

    • LOGGER

      private static final org.slf4j.Logger LOGGER

    • context

      private final MongoDbTaskContext context

    • maskedConnectionSeed

      private final String maskedConnectionSeed

  • Constructor Details

    • ReplicaSetDiscovery

      public ReplicaSetDiscovery(MongoDbTaskContext context)
      Create a cluster component.
      Parameters:
      context - the replication context; may not be null

  • Method Details

    • getReplicaSets

      public ReplicaSets getReplicaSets(com.mongodb.client.MongoClient client)
      Connect to the shard cluster or replica set defined by the seed addresses, and obtain the specifications for each of the replica sets.
      Returns:
      the information about the replica sets; never null but possibly empty

    • readShardedClusterAsReplicaSet

      private void readShardedClusterAsReplicaSet(Set<ReplicaSet> replicaSetSpecs, ConnectionContext connectionContext)

    • readReplicaSetsFromCluster

      private void readReplicaSetsFromCluster(Set<ReplicaSet> replicaSetSpecs, com.mongodb.connection.ClusterDescription clusterDescription, ConnectionContext connectionContext)

    • readReplicaSetsFromShardedCluster

      private void readReplicaSetsFromShardedCluster(Set<ReplicaSet> replicaSetSpecs, com.mongodb.client.MongoClient client)

    • ensureReplicaSetName

      private String ensureReplicaSetName(String connectionString, com.mongodb.connection.ClusterDescription clusterDescription)
      Ensures connection string contains the replicaSet parameter.If connection string doesn't contain the parameter, the replica set name is read from cluster description and the parameter is added.
      Parameters:
      connectionString - the original connection string
      clusterDescription - cluster description
      Returns:
      connection string with replicaSet parameter