MonitoredCache getConnection()

in core/src/main/java/com/google/cloud/sql/core/Connector.java [153:177]

• 15 lines of code
• 3 McCabe index (conditional complexity)

  MonitoredCache getConnection(final ConnectionConfig config) {
    final ConnectionConfig updatedConfig = resolveConnectionName(config);

    // If the cache entry doesn't exist, or if the cache entry is closed,
    // replace it.
    MonitoredCache instance =
        instances.compute(
            updatedConfig,
            (k, v) ->
                v != null && !v.isClosed()
                    ? v
                    : new MonitoredCache(
                        createConnectionInfo(updatedConfig),
                        instanceNameResolverTimer,
                        this::resolveDomain));

    // If the client certificate has expired (as when the computer goes to
    // sleep, and the refresh cycle cannot run), force a refresh immediately.
    // The TLS handshake will not fail on an expired client certificate. It's
    // not until the first read where the client cert error will be surfaced.
    // So check that the certificate is valid before proceeding.
    instance.refreshIfExpired();

    return instance;
  }