How to use request method of org.testcontainers.r2dbc.CancellableSubscription class

Best Testcontainers-java code snippet using org.testcontainers.r2dbc.CancellableSubscription.request

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...3import java.util.concurrent.atomic.AtomicBoolean;4class CancellableSubscription implements Subscription {5 private final AtomicBoolean cancelled = new AtomicBoolean();6 @Override7 public void request(long n) {8 }9 @Override10 public void cancel() {11 cancelled.set(true);12 }13 public boolean isCancelled() {14 return cancelled.get();15 }16}...

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request

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1CancellableSubscription subscription = new CancellableSubscription();2subscription.request(10);3subscription.request(10, 10);4public void cancel()5public void setCancellable(org.reactivestreams.Cancellable cancellable)6public void run()

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request

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1import org.testcontainers.r2dbc.CancellableSubscription;2import org.springframework.context.annotation.Bean;3import org.springframework.context.annotation.Configuration;4import org.springframework.context.annotation.Profile;5import org.springframework.core.env.Environment;6import org.springframework.data.r2dbc.connectionfactory.ConnectionFactory;7import org.springframework.data.r2dbc.core.DatabaseClient;8import org.springframework.data.r2dbc.repository.config.EnableR2dbcRepositories;9import org.springframework.r2dbc.connection.init.ConnectionFactoryInitializer;10import org.springframework.r2dbc.connection.init.ResourceDatabasePopulator;11import org.springframework.r2dbc.core.DatabaseClient;12import org.springframework.stereotype.Repository;13import reactor.core.publisher.Flux;14import reactor.core.publisher.Mono;15import reactor.util.annotation.Nullable;16import java.util.Objects;17import java.util.UUID;18public class Config {19 public ConnectionFactoryInitializer initializer(ConnectionFactory connectionFactory) {20 ConnectionFactoryInitializer initializer = new ConnectionFactoryInitializer();21 initializer.setConnectionFactory(connectionFactory);22 initializer.setDatabasePopulator(new ResourceDatabasePopulator(23 new ClassPathResource("data.sql")24 ));25 return initializer;26 }27 public DatabaseClient databaseClient(ConnectionFactory connectionFactory) {28 return DatabaseClient.create(connectionFactory);29 }30}31@Profile("test")32public class TestRepository {33 private final DatabaseClient client;34 public TestRepository(DatabaseClient client) {35 this.client = client;36 }37 public Flux<UUID> findAll() {38 return client.execute("SELECT id FROM test")39 .as(UUID.class)40 .fetch()41 .all();42 }43}44public void test() {45 CancellableSubscription subscription = new CancellableSubscription();46 repository.findAll().subscribe(subscription);47 subscription.cancel();48 assertThat(subscription.isCancelled()).isTrue();49}

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request

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1import org.testcontainers.r2dbc.CancellableSubscription;2import org.testcontainers.r2dbc.R2dbcDatabaseContainer;3import org.testcontainers.r2dbc.R2dbcTestContainerDatabaseDriver;4import java.util.concurrent.TimeUnit;5import io.r2dbc.spi.ConnectionFactory;6import reactor.core.publisher.Flux;7import reactor.core.publisher.Mono;8import reactor.core.scheduler.Schedulers;9public class TestcontainersR2dbcCancelSubscription {10 public static void main(String[] args) throws InterruptedException {11 R2dbcDatabaseContainer<?> container = new R2dbcTestContainerDatabaseDriver().newInstance();12 container.start();13 ConnectionFactory connectionFactory = container.getR2dbcConnectionFactory();14 Flux.from(connectionFactory.create())15 .flatMapMany(connection -> Flux.from(connection.createStatement("SELECT * FROM generate_series(1, 100)").execute())16 .flatMap(result -> Flux.from(result.map((row, rowMetadata) -> row.get(0, Integer.class))))17 .doOnNext(System.out::println)18 .doFinally(signalType -> Mono.from(connection.close()).subscribe())19 .subscribeOn(Schedulers.boundedElastic())20 .subscribe(new CancellableSubscription()::request);21 TimeUnit.SECONDS.sleep(5);22 new CancellableSubscription().cancel();23 container.stop();24 }25}

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request

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1import reactor.core.publisher.Flux;2import reactor.core.publisher.Mono;3import reactor.test.StepVerifier;4import org.testcontainers.r2dbc.CancellableSubscription;5public class CancelRequestExample {6 public static void main(String[] args) {7 Flux<String> flux = Flux.just("a", "b", "c", "d", "e", "f", "g", "h", "i", "j");8 StepVerifier.create(flux)9 .thenRequest(5)10 .expectNext("a", "b", "c", "d", "e")11 .then(() -> {12 CancellableSubscription subscription = (CancellableSubscription) flux.subscribe().currentContext().get("reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.subscription");13 subscription.request(5);14 subscription.cancel();15 })16 .expectNext("f", "g", "h", "i", "j")17 .verifyComplete();18 }19}20 at reactor.test.util.AssertionUtils.fail(AssertionUtils.java:39)21 at reactor.test.util.AssertionUtils.isTrue(AssertionUtils.java:60)22 at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:1004)23 at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verifyComplete(DefaultStepVerifierBuilder.java:1045)24 at CancelRequestExample.main(CancelRequestExample.java:25)25[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project testcontainers-r2dbc: An exception occured while executing the Java class. null: InvocationTargetException: Expecting:

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1package org.testcontainers.r2dbc;2import io.r2dbc.spi.Connection;3import io.r2dbc.spi.ConnectionFactory;4import io.r2dbc.spi.Result;5import io.r2dbc.spi.Row;6import org.junit.jupiter.api.Test;7import org.testcontainers.containers.PostgreSQLContainer;8import org.testcontainers.junit.jupiter.Container;9import org.testcontainers.junit.jupiter.Testcontainers;10import reactor.core.publisher.Flux;11import reactor.core.publisher.Mono;12import static org.assertj.core.api.Assertions.assertThat;13class R2DBCConnectionTest {14 static PostgreSQLContainer<?> postgreSQLContainer = new PostgreSQLContainer<>();15 void shouldCreateAndExecuteStatement() {16 ConnectionFactory connectionFactory = postgreSQLContainer.createConnectionFactory();17 Mono.from(connectionFactory.create())18 .flatMapMany(connection -> Flux.from(connection.createStatement("SELECT 1").execute())19 .flatMap(result -> Flux.from(result.map((row, rowMetadata) -> row.get(0)))))20 .as(StepVerifier::create)21 .expectNext(1)22 .verifyComplete();23 }24 void shouldCreateAndExecuteStatementWithParameters() {25 ConnectionFactory connectionFactory = postgreSQLContainer.createConnectionFactory();26 Mono.from(connectionFactory.create())27 .flatMapMany(connection -> Flux.from(connection.createStatement("SELECT $1").bind("$1", 1).execute())28 .flatMap(result -> Flux.from(result.map((row, rowMetadata) -> row.get(0)))))29 .as(StepVerifier::create)30 .expectNext(1)31 .verifyComplete();32 }33 void shouldCreateAndExecuteStatementWithParametersAndMetadata() {34 ConnectionFactory connectionFactory = postgreSQLContainer.createConnectionFactory();35 Mono.from(connectionFactory.create())36 .flatMapMany(connection -> Flux.from(connection.createStatement("SELECT $1::int").bind("$1", 1).execute())37 .flatMap(result -> Flux.from(result.map((row, rowMetadata) -> row.get(0, Integer.class)))))38 .as(StepVerifier::create)39 .expectNext(1)40 .verifyComplete();41 }42 void shouldCreateAndExecuteStatementWithParametersAndMetadataAndFetchSize() {43 ConnectionFactory connectionFactory = postgreSQLContainer.createConnectionFactory();44 Mono.from(connectionFactory.create())

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