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Initial CommandProcessor

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This commit is contained in:
Lennart Heinrich
2025-10-18 00:50:21 +02:00
parent ca24995288
commit a99336ea65
5 changed files with 88 additions and 49 deletions
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14
pom.xml
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@@ -35,7 +35,7 @@
<dependency>
<groupId>de.infinimotion</groupId>
<artifactId>model-persistence</artifactId>
<version>0.0.3</version>
<version>0.0.38</version>
</dependency>
<!-- Quarkus -->
@@ -43,14 +43,6 @@
<groupId>io.quarkus</groupId>
<artifactId>quarkus-arc</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-rest</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-rest-jackson</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-messaging-kafka</artifactId>
@@ -59,6 +51,10 @@
<groupId>io.quarkus</groupId>
<artifactId>quarkus-hibernate-orm</artifactId>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-jdbc-postgresql</artifactId>
</dependency>
<!-- Test -->
<dependency>

58
src/main/java/de/infinimotion/persistence/CommandProcessor.java Normal file
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@@ -0,0 +1,58 @@
package de.infinimotion.persistence;
import de.infinimotion.model.persistence.*;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.inject.Inject;
import jakarta.persistence.EntityManager;
import jakarta.transaction.Transactional;
import org.eclipse.microprofile.reactive.messaging.Incoming;
import org.eclipse.microprofile.reactive.messaging.Outgoing;
import java.io.IOException;
import java.util.List;
import java.util.Map;
@ApplicationScoped
public class CommandProcessor {
@Inject
EntityManager em;
private Map<String, ThrowingFunction<CommandWrapper, Command, IOException>> processors
= Map.of(CommandListKinosaal.class.getSimpleName(), this::processListKinosaal,
CommandCreateKinosaal.class.getSimpleName(), this::processCreateKinosaal);
@Incoming("command")
@Outgoing("command-replies")
public CommandWrapper process(CommandWrapper request) throws IOException {
ThrowingFunction<CommandWrapper, Command, IOException> processor = processors.get(request.getType());
if (processor == null) {
CommandException e = new CommandException();
e.setException("unknown processor");
return e.serialize().copyIds(request);
}
return processor.apply(request).serialize().copyIds(request);
}
@Transactional
Command processListKinosaal(CommandWrapper wrapper) throws IOException {
CommandListKinosaal request = CommandListKinosaal.deserialize(wrapper);
List<Kinosaal> results = em.createQuery("SELECT k FROM Kinosaal k", Kinosaal.class).getResultList();
CommandListKinosaalResponse response = new CommandListKinosaalResponse();
response.setList(results);
return response;
}
@Transactional
Command processCreateKinosaal(CommandWrapper wrapper) throws IOException {
CommandCreateKinosaal request = CommandCreateKinosaal.deserialize(wrapper);
Kinosaal hall = new Kinosaal();
hall.setName(request.getName());
em.persist(hall);
CommandCreateKinosaalResponse response = new CommandCreateKinosaalResponse();
response.setHall(hall);
return response;
}
}

36
src/main/java/de/infinimotion/persistence/GreetingResource.java
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@@ -1,36 +0,0 @@
package de.infinimotion.persistence;
import de.infinimotion.persistence.Eintrittskarte;
import io.smallrye.reactive.messaging.annotations.Incomings;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.inject.Inject;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.QueryParam;
import org.eclipse.microprofile.reactive.messaging.Channel;
import org.eclipse.microprofile.reactive.messaging.Emitter;
import org.eclipse.microprofile.reactive.messaging.Incoming;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.logging.Logger;
@ApplicationScoped
@Path("/hello")
public class GreetingResource {
@Channel("test")
Emitter<String> testEmitter;
@GET
public Eintrittskarte hello(@QueryParam("code") String code) throws ExecutionException, InterruptedException, TimeoutException {
Eintrittskarte ticket = new Eintrittskarte();
ticket.setId((int) (Math.random() * Integer.MAX_VALUE));
ticket.setCode(code);
testEmitter.send(ticket.toString()).toCompletableFuture().get(10, TimeUnit.SECONDS);
System.out.println("Sent " + ticket);
return ticket;
}
}

6
src/main/java/de/infinimotion/persistence/ThrowingFunction.java Normal file
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@@ -0,0 +1,6 @@
package de.infinimotion.persistence;
@FunctionalInterface
public interface ThrowingFunction<T, R, E extends Exception> {
R apply(T t) throws E;
}

23
src/main/resources/application.properties
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@@ -1,7 +1,22 @@
quarkus.http.port=8081
quarkus.http.port=7081
quarkus.index-dependency.model-persistence.group-id=de.infinimotion
quarkus.index-dependency.model-persistence.artifact-id=model-persistence
%dev.kafka.bootstrap.servers=localhost:19092
kafka.bootstrap.servers=redpanda-0:9092
kafka.security.protocol=SASL_PLAINTEXT
kafka.sasl.mechanism=SCRAM-SHA-256
kafka.sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule required username="im-admin" password="a552855c0d842e90895121cf614c31f950086cab";
kafka.bootstrap.servers=redpanda-0:9092
mp.messaging.outgoing.test.connector=smallrye-kafka
kafka.sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule required username="im-admin" password="a552855c0d842e90895121cf614c31f950086cab";
mp.messaging.incoming.command.connector=smallrye-kafka
mp.messaging.incoming.command.auto.offset.reset=earliest
mp.messaging.outgoing.command-replies.connector=smallrye-kafka
quarkus.hibernate-orm.schema-management.strategy=update
quarkus.datasource.db-kind=postgresql
quarkus.datasource.username=postgres
quarkus.datasource.password=a552855c0d842e90895121cf614c31f950086cab
quarkus.datasource.jdbc.url=jdbc:postgresql://localhost:5432/postgres