-
Notifications
You must be signed in to change notification settings - Fork 107
/
SnsEventExternalizerConfiguration.java
85 lines (75 loc) · 3.5 KB
/
SnsEventExternalizerConfiguration.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*
* Copyright 2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.modulith.events.aws.sns;
import io.awspring.cloud.sns.core.SnsNotification;
import io.awspring.cloud.sns.core.SnsOperations;
import io.awspring.cloud.sns.core.SnsTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.services.sns.model.InvalidParameterException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.expression.BeanFactoryResolver;
import org.springframework.expression.spel.support.StandardEvaluationContext;
import org.springframework.messaging.MessageDeliveryException;
import org.springframework.modulith.events.EventExternalizationConfiguration;
import org.springframework.modulith.events.config.EventExternalizationAutoConfiguration;
import org.springframework.modulith.events.support.BrokerRouting;
import org.springframework.modulith.events.support.DelegatingEventExternalizer;
/**
* Auto-configuration to set up a {@link DelegatingEventExternalizer} to externalize events to SNS.
*
* @author Maciej Walkowiak
* @since 1.1
*/
@AutoConfiguration
@AutoConfigureAfter(EventExternalizationAutoConfiguration.class)
@ConditionalOnClass(SnsTemplate.class)
@ConditionalOnProperty(name = "spring.modulith.events.externalization.enabled",
havingValue = "true",
matchIfMissing = true)
class SnsEventExternalizerConfiguration {
private static final Logger logger = LoggerFactory.getLogger(SnsEventExternalizerConfiguration.class);
@Bean
DelegatingEventExternalizer snsEventExternalizer(EventExternalizationConfiguration configuration,
SnsOperations operations, BeanFactory factory) {
logger.debug("Registering domain event externalization to SNS…");
var context = new StandardEvaluationContext();
context.setBeanResolver(new BeanFactoryResolver(factory));
return new DelegatingEventExternalizer(configuration, (target, payload) -> {
var routing = BrokerRouting.of(target, context);
var builder = SnsNotification.builder(payload);
var key = routing.getKey(payload);
// when routing key is set, SNS topic must be a FIFO topic
if (key != null) {
builder.groupId(key);
}
try {
operations.sendNotification(routing.getTarget(), builder.build());
} catch (MessageDeliveryException e) {
// message delivery may fail if groupId is set and topic is not a FIFO topic, or content based deduplication has not been set on topic attributes.
if (e.getCause() instanceof InvalidParameterException) {
logger.error("Failed to send notification to SNS topic {}:{}", routing.getTarget(), e.getCause().getMessage());
}
throw e;
}
});
}
}