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Added update product api changes with price change event #2

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Added update product api changes with price change event #2

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5ac64b5
Adding getCatalofTypes & getCatalogBrands API changes
MadhanChiluka Apr 12, 2023
dd30cb7
Changes for getCatalogType and getCatalogBrand Changes
MadhanChiluka Apr 12, 2023
332d62e
Adding changes for Update Product Price and its event
MadhanChiluka Apr 13, 2023
7dd1150
Added update product api changes
MadhanChiluka Apr 19, 2023
3c6b75b
Added update product api changes
MadhanChiluka Apr 19, 2023
ca2ee08
EventLogService Update Status Changes
MadhanChiluka Apr 20, 2023
0881f24
EventLogService update status changes
MadhanChiluka Apr 20, 2023
e55fda1
Added ProductPriceChangedEventHandler and IntgLogEntry Fixes
MadhanChiluka Apr 23, 2023
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154 changes: 74 additions & 80 deletions ...ocks/EventBus/eventbus-rabbitmq/src/main/java/com/eshoponcontainers/EventBusRabbitMQ.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,85 +30,79 @@
@Component
public class EventBusRabbitMQ implements EventBus {

private static final String EXCHANGE_TYPE_DIRECT = "direct";
private static final String BROKER_NAME = "eshop_event_bus_exchange";
private static final String QUEUE_NAME = "Catalog";

private final Sender sender;
private final InMemoryEventBusSubscriptionManager subscriptionManager;
private final Receiver receiver;

@Override
public Mono<Void> publish(IntegrationEvent event) {

ObjectMapper mapper = new ObjectMapper();
String eventName = event.getClass().getSimpleName();
BasicProperties basicProperties = new BasicProperties().builder().deliveryMode(2).build();

try {

byte[] body = mapper.writeValueAsBytes(event);
OutboundMessage message = new OutboundMessage(BROKER_NAME, eventName, basicProperties, body);

return sender.declare(ExchangeSpecification.exchange(BROKER_NAME).type(EXCHANGE_TYPE_DIRECT))
.then(sender.send(Mono.just(message)));

} catch (JsonProcessingException e) {
return Mono.error(e);
}
}

@Override
public <T extends IntegrationEvent, TH extends IntegrationEventHandler<T>> Mono<Void> subscribe(Class<T> eventType,
Class<TH> eventHandler) {

subscriptionManager.addSubscription(eventType, eventHandler);
log.info("Entered subscribe method");

Mono<Void> mono = Mono.fromRunnable(() -> {
receiver.consumeAutoAck(QUEUE_NAME).subscribe(message -> {

String routingKey = message.getEnvelope().getRoutingKey();
// Class eventType = subscriptionManager.getEventTypeByName(routingKey);
byte[] messageBody = message.getBody();
try {
Object event = new ObjectMapper().readValue(messageBody, eventType);
log.info(event.toString());
List<SubscriptionInfo> subscriptions = subscriptionManager.getHandlersForEvent(eventType);
if (subscriptions != null && !subscriptions.isEmpty()) {
for (SubscriptionInfo subscription : subscriptions) {
Class handler = subscription.getHandler();
Method methodInfo = null;
try {
methodInfo = handler.getDeclaredMethod("handle", IntegrationEvent.class);
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

if(methodInfo != null)
try {
methodInfo.invoke(handler.newInstance(), event);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}
} catch (IOException e) {
e.printStackTrace();
}
});
});
return sender.declare(ExchangeSpecification.exchange(BROKER_NAME))
.then(sender.declareQueue(QueueSpecification.queue(QUEUE_NAME)))
.then(sender.bind(BindingSpecification.binding(BROKER_NAME, eventType.getSimpleName(), QUEUE_NAME)))
.then(mono);

}
private static final String EXCHANGE_TYPE_DIRECT = "direct";
private static final String BROKER_NAME = "eshop_event_bus_exchange";
private static final String QUEUE_NAME = "Catalog";

private final Sender sender;
private final InMemoryEventBusSubscriptionManager subscriptionManager;
private final Receiver receiver;

@Override
public Mono<Void> publish(IntegrationEvent event) {
ObjectMapper mapper = new ObjectMapper();
String eventName = event.getClass().getSimpleName();
System.out.println("Event Name : " + eventName);
BasicProperties basicProperties = new BasicProperties().builder().deliveryMode(2).build();
try {
byte[] body = mapper.writeValueAsBytes(event);
OutboundMessage message = new OutboundMessage(BROKER_NAME, eventName, basicProperties, body);
return sender.declare(ExchangeSpecification.exchange(BROKER_NAME).type(EXCHANGE_TYPE_DIRECT))
.then(sender.send(Mono.just(message)));
} catch (JsonProcessingException e) {
return Mono.error(e);
}
}

@Override
public <T extends IntegrationEvent, TH extends IntegrationEventHandler<T>> Mono<Void> subscribe(Class<T> eventType,
Class<TH> eventHandler) {
subscriptionManager.addSubscription(eventType, eventHandler);
log.info("Entered subscribe method");
Mono<Void> mono = Mono.fromRunnable(() -> {
receiver.consumeAutoAck(QUEUE_NAME).subscribe(message -> {
String routingKey = message.getEnvelope().getRoutingKey();
// Class eventType = subscriptionManager.getEventTypeByName(routingKey);
byte[] messageBody = message.getBody();
try {
Object event = new ObjectMapper().readValue(messageBody, eventType);
log.info(event.toString());
List<SubscriptionInfo> subscriptions = subscriptionManager.getHandlersForEvent(eventType);
if (subscriptions != null && !subscriptions.isEmpty()) {
for (SubscriptionInfo subscription : subscriptions) {
Class handler = subscription.getHandler();
Method methodInfo = null;
try {
methodInfo = handler.getDeclaredMethod("handle", IntegrationEvent.class);
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

if (methodInfo != null)
try {
methodInfo.invoke(handler.newInstance(), event);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
| InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}
} catch (IOException e) {
e.printStackTrace();
}
});
});
return sender.declare(ExchangeSpecification.exchange(BROKER_NAME))
.then(sender.declareQueue(QueueSpecification.queue(QUEUE_NAME)))
.then(sender.bind(BindingSpecification.binding(BROKER_NAME, eventType.getSimpleName(), QUEUE_NAME)))
.then(mono);

}

}
101 changes: 49 additions & 52 deletions src/BuildingBlocks/EventBus/eventbus/pom.xml
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Original file line number Diff line number Diff line change
@@ -1,55 +1,52 @@
<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.eshoponcontainers</groupId>
<artifactId>eventbus</artifactId>
<version>1.0-SNAPSHOT</version>

<name>eventbus</name>

<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>

<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.26</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.3.13</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.13</version>
</dependency>


<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
<version>3.5.4</version>
</dependency>

<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.9.2</version>
<scope>test</scope>
</dependency>

</dependencies>


xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.eshoponcontainers</groupId>
<artifactId>eventbus</artifactId>
<version>1.0-SNAPSHOT</version>
<name>eventbus</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.26</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.3.13</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.13</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-r2dbc</artifactId>
<version>2.7.10</version>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
<version>3.5.4</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.9.2</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
16 changes: 16 additions & 0 deletions src/BuildingBlocks/EventBus/eventbus/src/main/java/com/eshoponcontainers/EventStateEnum.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
package com.eshoponcontainers;

public enum EventStateEnum {
NOT_PUBLISHED(0),
IN_PROGRESS(1),
PUBLISHED(2),
PUBLISH_FAILED(3);

private int value;
private EventStateEnum(int value) {
this.value = value;
}
public int getValue() {
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Added getValue for Enum as navchar2(Ex : EventStateEnum.NOT_PUBLISHED) cannot be persisted to int in db.
Need to revisit

return value;
}
}
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