Java Code Examples for

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Example 1
private DatabaseInstance(DatabaseConfig config) throws IOException {
    Map<String, String> initdbProperties = new HashMap<>(config.initdbProperties);
    initdbProperties.putIfAbsent("encoding", "UTF-8");

    List<String> initdbParams = initdbProperties.entrySet().stream()
            .map(e -> String.format("--%s=%s", e.getKey(), e.getValue()))

    Map<String, String> serverProperties = new HashMap<>(config.configProperties);
    serverProperties.putIfAbsent("max_connections", "300");

    List<String> postgresParams = serverProperties.entrySet().stream()
            .flatMap(e -> Stream.of("-c", String.format("%s=%s", e.getKey(), e.getValue())))

    postgres = new EmbeddedPostgres(config.version);
    postgres.start(defaultRuntimeConfig(), DEFAULT_HOST, SocketUtil.findFreePort(),
            DEFAULT_DB_NAME, POSTGRES_USERNAME, POSTGRES_PASSWORD, initdbParams, postgresParams);

    Runtime.getRuntime().addShutdownHook(new Thread(postgres::close));

    semaphore = new Semaphore(Integer.parseInt(serverProperties.get("max_connections")));
Example 2
Source Project: ndbc   Source File:    License: Apache License 2.0 5 votes vote down vote up
public final DataSource<PreparedStatement, Row> get() {"Starting embedded postgres " + version + " on port " + config.port());

  final EmbeddedPostgres postgres = new EmbeddedPostgres(version);

  final IRuntimeConfig cached = cachedRuntimeConfig(
      Paths.get(System.getProperty("user.home"), ".ndbc", "embedded_postgres"));

  final String password = config.password().orElseGet(() -> {
    throw new UnsupportedOperationException("Embedded postgres requires a password");

  try {
    postgres.start(cached,, config.port(), config.database().orElse(EmbeddedPostgres.DEFAULT_DB_NAME),
        config.user(), password, DEFAULT_ADD_PARAMS);
  } catch (final IOException e) {
    throw new RuntimeException(e);

  Runtime.getRuntime().addShutdownHook(new Thread(() -> postgres.stop()));"postgres " + version + " started");

  final DataSource<PreparedStatement, Row> underlying = DataSource.fromConfig(config.embedded(Optional.empty()));
  return new ProxyDataSource<PreparedStatement, Row>(underlying) {
    public Config config() {
      return EmbeddedSupplier.this.config;
Example 3
Source Project: raml-module-builder   Source File:    License: Apache License 2.0 4 votes vote down vote up
private static void rememberEmbeddedPostgres() {
   embeddedPostgres = new EmbeddedPostgres(Version.Main.V10);