Apply Nullability to MongoDb module #10213
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Related to: spring-projects#10083 Signed-off-by: Jiandong Ma <jiandong.ma.cn@gmail.com>
...godb/src/main/java/org/springframework/integration/mongodb/inbound/MongoDbMessageSource.java
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...ion-mongodb/src/main/java/org/springframework/integration/mongodb/store/MessageDocument.java
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...mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
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| return (S) readAsMessageWrapper(source); | ||
| } | ||
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| private MessageWrapper readAsMessageWrapper(Bson source) { |
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I can not make this method return nullable, the underlying spring-data-mongodb does not allow to return null.
so I assert the source param never null?
...b/src/main/java/org/springframework/integration/mongodb/outbound/MongoDbOutboundGateway.java
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...a/org/springframework/integration/mongodb/outbound/ReactiveMongoDbStoringMessageHandler.java
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| @Override | ||
| public void afterPropertiesSet() { | ||
| if (this.mongoTemplate == null) { | ||
| Objects.requireNonNull(this.mongoDbFactory); |
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below MappingMongoConverter and MongoTemplate both use this, so I leave it here.
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Ok. Then NullAway.Init on this connectionFactory property ?
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Or Assert.notNull().
This method is called only once, so having a check is OK.
We use Objects.requireNonNull only if we deliberately know that it is not null.
Probably one day I’ll revise them all into a NullAway suppressions since I’m very picky for performance 😁
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mongoDbFactory can be null, when we give a mongoTemplate via ctor
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Or
Assert.notNull(). This method is called only once, so having a check is OK. We useObjects.requireNonNullonly if we deliberately know that it is not null. Probably one day I’ll revise them all into aNullAwaysuppressions since I’m very picky for performance 😁
ok
...ion-mongodb/src/main/java/org/springframework/integration/mongodb/store/MessageDocument.java
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...mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
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| new Update().inc(SEQUENCE, 1L), | ||
| FindAndModifyOptions.options().returnNew(true).upsert(true), | ||
| Map.class, this.collectionName); | ||
| Objects.requireNonNull(result); |
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This looks redundant since you use another one in the next operator.
We need to think to get rid off of this at all if we are sure it is never null.
If this is a critical execution path, it would be better to avoid as much as possible extra calls.
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I suppress it with NullAway.
...mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
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…into jspecify-mongodb
Signed-off-by: Jiandong Ma <jiandong.ma.cn@gmail.com>
artembilan
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artembilan
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Pulling this locally for final review and possible clean up & merge.
Thank you again for so many great contributions!
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Merged as: fb12c05 |
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Here is some clean up after your change: a3476d2. Pay attention to the fix in all those components where we have a choice between template and connection factory. |
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Related to: #10083