#285, create, list topics

src/it/producer-consumer-api/src/test/java/EntryTest.java

@@ -25,6 +25,7 @@
 import io.github.eocqrs.kafka.Consumer;
 import io.github.eocqrs.kafka.Dataized;
 import io.github.eocqrs.kafka.Producer;
+import io.github.eocqrs.kafka.admin.CreateTopics;
 import io.github.eocqrs.kafka.consumer.KfConsumer;
 import io.github.eocqrs.kafka.consumer.settings.KfConsumerParams;
 import io.github.eocqrs.kafka.data.KfData;
@@ -81,12 +82,6 @@
 
 import static org.assertj.core.api.Assertions.*;
 
-/**
- * @todo #81 Tests to produce-consume data.
- * Write a test which will be check how consumer
- * reads data from producer.
- */
-
 /**
  * @todo #236:30m/DEV Enable tests
  */
@@ -103,7 +98,6 @@ final class EntryTest {
   private static final KafkaContainer KAFKA = new KafkaContainer(
     DockerImageName.parse("confluentinc/cp-kafka:7.3.0")
   )
-    .withEnv("auto.create.topics.enable", "true")
     .withEnv("KAFKA_CREATE_TOPICS", "TEST-TOPIC")
     .withReuse(true)
     .withLogConsumer(
@@ -113,7 +107,7 @@ final class EntryTest {
         )
       )
     )
-    .withExternalZookeeper("localhost:2181");
+    .withEmbeddedZookeeper();
 
   private static String servers;
 
@@ -202,6 +196,10 @@ void createsProducerAndSendsMessage() throws Exception {
     final AdminClient admin = AdminClient.create(
       ImmutableMap.of(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, EntryTest.servers)
     );
+    new CreateTopics(
+      admin,
+      new NewTopic("TEST-TOPIC", 1, (short) 1)
+    ).value().get(30L, TimeUnit.SECONDS);
     final KafkaProducer<String, String> producer = new KafkaProducer<>(
       ImmutableMap.of(
         ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,
@@ -224,12 +222,6 @@ void createsProducerAndSendsMessage() throws Exception {
       new StringDeserializer(),
       new StringDeserializer()
     );
-    final Collection<NewTopic> topics =
-      Collections.singletonList(
-        new NewTopic("TEST-TOPIC", 1, (short) 1)
-      );
-    admin.createTopics(topics)
-      .all().get(30L, TimeUnit.SECONDS);
     consumer.subscribe(Collections.singletonList("TEST-TOPIC"));
     producer.send(new ProducerRecord<>("TEST-TOPIC", "testcontainers", "rulezzz")).get();
     Unreliables.retryUntilTrue(

src/main/java/io/github/eocqrs/kafka/admin/CreateTopics.java

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2022 Aliaksei Bialiauski, EO-CQRS
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.github.eocqrs.kafka.admin;
+
+import org.apache.kafka.clients.admin.AdminClient;
+import org.apache.kafka.clients.admin.NewTopic;
+import org.apache.kafka.common.KafkaFuture;
+import org.cactoos.Scalar;
+import org.cactoos.list.ListOf;
+
+import java.util.List;
+
+/**
+ * Create topics.
+ *
+ * @author Aliaksei Bialiauski (abialiauski.dev@gmail.com)
+ * @since 0.1.3
+ */
+public final class CreateTopics implements Scalar<KafkaFuture<Void>> {
+
+  /**
+   * Admin.
+   */
+  private final AdminClient admin;
+  /**
+   * Topics to create.
+   */
+  private final List<NewTopic> topics;
+
+  /**
+   * Ctor.
+   *
+   * @param admn Kafka Admin
+   * @param tpcs Topics to create
+   * @see AdminClient
+   * @see NewTopic
+   */
+  public CreateTopics(final AdminClient admn, final NewTopic... tpcs) {
+    this.admin = admn;
+    this.topics = new ListOf<>(tpcs);
+  }
+
+  @Override
+  public KafkaFuture<Void> value() throws Exception {
+    return this.admin.createTopics(this.topics)
+      .all();
+  }
+}

src/main/java/io/github/eocqrs/kafka/admin/ListTopics.java

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2022 Aliaksei Bialiauski, EO-CQRS
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.github.eocqrs.kafka.admin;
+
+import org.apache.kafka.clients.admin.AdminClient;
+import org.cactoos.Scalar;
+
+import java.util.List;
+
+/**
+ * List all topics.
+ *
+ * @author Aliaksei Bialiauski (abialiauski.dev@gmail.com)
+ * @since 0.1.3
+ */
+public final class ListTopics implements Scalar<List<String>> {
+
+  /**
+   * Admin.
+   */
+  private final AdminClient admin;
+
+  /**
+   * Ctor.
+   *
+   * @param admn Kafka Admin
+   * @see AdminClient
+   */
+  public ListTopics(final AdminClient admn) {
+    this.admin = admn;
+  }
+
+  @Override
+  public List<String> value() throws Exception {
+    return this.admin.listTopics()
+      .listings()
+      .get()
+      .stream()
+      .map(listing ->
+        "id: %s, name: %s, internal: %s"
+          .formatted(
+            listing.topicId().toString(),
+            listing.name(),
+            listing.isInternal()
+          )
+      ).toList();
+  }
+}

src/main/java/io/github/eocqrs/kafka/admin/package-info.java

@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2022 Aliaksei Bialiauski, EO-CQRS
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Kafka Admin interactions.
+ *
+ * @author Aliaksei Bialiauski (abialiauski.dev@gmail.com)
+ * @since 0.1.3
+ */
+package io.github.eocqrs.kafka.admin;