Examples of com.datastax.driver.core.Cluster$ConnectionReaper

com.datastax.driver.core.Cluster
Periodically ensures that closed connections are properly terminated once they have no more pending requests. This is normally done when the connection errors out, or when the last request is processed; this class acts as a last-effort protection since unterminated connections can lead to deadlocks. If it terminates a connection, this indicates a bug; warnings are logged so that this can be reported.

    @Override
    public Persistence getPersistence(String host, String keySpace,
            ReplicaStrategy replicaStrategy, int factor) {


        if (!persistenceMap.containsKey(keySpace)) {
            Cluster cluter = Cluster.builder().addContactPoints(host).build();
            Session session = cluter.connect();
            if (!keySpace.contains(keySpace)) {
                verifyKeySpace(keySpace, cluter.connect(), replicaStrategy, factor);
                keySpaces.add(keySpace);
            }
            persistenceMap.put(keySpace, new PersistenceSimpleImpl(session,
                    keySpace));
        }

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            {
                clusterName = args[1];
            }
        }


        Cluster cluster = Cluster.builder().
            addContactPoint(contact).
            withClusterName(clusterName).
            build();
        try
        {
            new Demo().runDemo(cluster);
        }
        finally
        {
            cluster.close();
        }
    }

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            withClusterName(CLUSTER_NAME);


        VersionNumber expect = VersionNumber.parse(configuredCassandraVersion);
        boolean remove = true;
        boolean create = false;
        Cluster c = builder.build();
        try {
            VersionNumber ver = clusterVersion(c);
            if (ver.getMajor() == expect.getMajor() && ver.getMinor() == expect.getMinor()
                && c.getMetadata().getAllHosts().size() == Integer.parseInt(configuredNodeCount)) {
                System.out.println("Reusing previous Apache Cassandra cluster ...");
                remove = false;
            } else {
                create = true;
            }
        } catch (Throwable ignore) {
            create = true;
        } finally { c.close(); }


        if (remove) {
            System.out.println("Removing previous Apache Cassandra cluster test...");
            exec("ccm", "remove", "test");
        }

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  protected abstract String getKeyspaceName();


  @Bean
  public CassandraCqlSessionFactoryBean session() throws Exception {


    Cluster cluster = cluster().getObject();


    CassandraCqlSessionFactoryBean bean = new CassandraCqlSessionFactoryBean();
    bean.setCluster(cluster);
    bean.setKeyspaceName(getKeyspaceName());

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  private Cluster connectToCluster(String node, String username,
      String password) throws Exception {
    Builder clusterBuilder = Cluster.builder().withoutMetrics();


    Cluster cluster = null;
    try {
      _log.info("Started connecting to cluster: {} ...", node);
      _log.debug("Adding contact point...");
      clusterBuilder = clusterBuilder.addContactPoint(node);

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        }
    }


    @Override
    public void start() {
        Cluster cluster = Cluster.builder().addContactPoint(address).build();
        Metadata metadata = cluster.getMetadata();
        LOGGER.debug("Connected to cluster: {0}", metadata.getClusterName());
        for (Host host : metadata.getAllHosts()) {
            LOGGER.debug("Datacenter: {0}; Host: {1}; Rack: {2}", host.getDatacenter(), host.getAddress(), host.getRack());
        }


        session = cluster.connect();
        try {
            session.execute("CREATE KEYSPACE modeshape WITH replication "
                            + "= {'class':'SimpleStrategy', 'replication_factor':3};");
        } catch (AlreadyExistsException e) {
        }

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        QueryOptions options = new QueryOptions();
        options.setFetchSize(fetchSize);
        options.setConsistencyLevel(consistencyLevel);
        clusterBuilder.withQueryOptions(options);


        Cluster cluster = clusterBuilder.build();
        Session session = cluster.connect();
        return new CassandraSession(connectorId.toString(), session, fetchSizeForPartitionKeySelect, limitForPartitionKeySelect);
    }

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          "to be able to connect to Cassandra. See ICassandraSettings#getContactPoints.");
    }


    String[] contactPointsAsArray = contactPoints.toArray(new String[contactPoints.size()]);


    Cluster cluster = Cluster.builder()
        .addContactPoints(contactPointsAsArray).build();


    return cluster;
  }

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        } else {
            hostname = DEFAULT_CASSANDRA_HOST;
            cqlPort = parameters.getTyped(CASSANDRA_CQL_PORT);
        }


        final Cluster cluster = createCluster(hostname, cqlPort, parameters);


        createKeyspaceIfNeeded(cluster, keyspaceName, keyspaceDurableWrite);


        if (nativeSessionOnly) {
            REPOSITORY.addNewSessionToKeyspace(keyspaceName, cluster.connect(keyspaceName));
        } else {
            Session nativeSession = cluster.connect(keyspaceName);
            achillesParameters.put(ConfigurationParameters.NATIVE_SESSION, nativeSession);
            achillesParameters.put(ConfigurationParameters.KEYSPACE_NAME, keyspaceName);
            if (!achillesParameters.containsKey(ConfigurationParameters.FORCE_TABLE_CREATION)) {
                achillesParameters.put(ConfigurationParameters.FORCE_TABLE_CREATION, true);
            }

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        // PoolingOptions,
        connectionBuilder.withPoolingOptions(getPoolingOptions(connectionProperties));


        // finally build cluster.
        Cluster cluster = connectionBuilder.build();


        PersistenceUnitMetadata persistenceUnitMetadata = kunderaMetadata.getApplicationMetadata()
                .getPersistenceUnitMetadata(getPersistenceUnit());
        Properties props = persistenceUnitMetadata.getProperties();

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