Flink コネクタ

<dependency>
    <groupId>com.clickhouse.flink</groupId>
    <artifactId>flink-connector-clickhouse-2.0.0</artifactId>
    <version>{{ stable_version }}</version>
    <classifier>all</classifier>
</dependency>

<dependency>
    <groupId>com.clickhouse.flink</groupId>
    <artifactId>flink-connector-clickhouse-1.17</artifactId>
    <version>{{ stable_version }}</version>
    <classifier>all</classifier>
</dependency>

public static void main(String[] args) {
    // ClickHouseClient を設定
    ClickHouseClientConfig clickHouseClientConfig = new ClickHouseClientConfig(url, username, password, database, tableName);

    // ElementConverter を作成
    ElementConverter<String, ClickHousePayload> convertorString = new ClickHouseConvertor<>(String.class);

    // sink を作成し、`setClickHouseFormat` でフォーマットを設定
    ClickHouseAsyncSink<String> csvSink = new ClickHouseAsyncSink<>(
            convertorString,
            MAX_BATCH_SIZE,
            MAX_IN_FLIGHT_REQUESTS,
            MAX_BUFFERED_REQUESTS,
            MAX_BATCH_SIZE_IN_BYTES,
            MAX_TIME_IN_BUFFER_MS,
            MAX_RECORD_SIZE_IN_BYTES,
            clickHouseClientConfig
    );

    csvSink.setClickHouseFormat(ClickHouseFormat.CSV);

    // 最後に、DataStream を sink に接続します。
    final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

    Path csvFilePath = new Path(fileFullName);
    FileSource<String> csvSource = FileSource
            .forRecordStreamFormat(new TextLineInputFormat(), csvFilePath)
            .build();

    env.fromSource(
            csvSource,
            WatermarkStrategy.noWatermarks(),
            "GzipCsvSource"
    ).sinkTo(csvSink);
}

Map<String, String> javaClientOptions = Map.of(
    ClientConfigProperties.CA_CERTIFICATE.getKey(), "<my_CA_cert>",
    ClientConfigProperties.SSL_CERTIFICATE.getKey(), "<my_SSL_cert>",
    ClientConfigProperties.CLIENT_NETWORK_BUFFER_SIZE.getKey(), "30000",
    ClientConfigProperties.HTTP_MAX_OPEN_CONNECTIONS.getKey(), "5"
);

Map<String, String> serverSettings = Map.of(
    "insert_deduplicate", "1"
);

ClickHouseClientConfig clickHouseClientConfig = new ClickHouseClientConfig(
    url,
    username,
    password,
    database,
    tableName,
    javaClientOptions,
    serverSettings,
    false // enableJsonSupportAsString
);