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spring mongodb

multi-tenant-spring-mongodb's Introduction

multi-tenant-spring-mongodb

A project with spring-data-mongodb supporting multi tenancy

Why?

If you are having a structure like the following in your mongodb it is pretty bad to handle, since spring-data-mongodb does not support multi tenancy.

CUSTOMER_DB_A #
  - collectionA
  - collectionB
  - collectionC
CUSTOMER_DB_B
  - collectionA
  - collectionB
  - collectionC

the data structure in these collections is the same, every customer does just have its own database in one mongodb instance.

There are serveral requests on StackOverflow regarding this topic: http://stackoverflow.com/questions/16325606/making-spring-data-mongodb-multi-tenant http://stackoverflow.com/questions/20791656/multi-tenant-mongodb-database-based-with-spring-data http://stackoverflow.com/questions/12078669/spring-data-mongodb-connect-to-multiple-databases-in-one-mongo-instance

Conclusion

I don't think that this is the best approach to archive this functionality but it just works without reinventing spring-data-mongodb.

With just a ThreadLocal it is not done, if you walso want to create Indexes. So I added a bit more sugar to it.

Just take a look into Application.java

Happy Hacking!

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multi-tenant-spring-mongodb's Issues

error

Parameter 0 of method mongoTemplate in **** required a bean of type 'com.mongodb.Mongo' that could not be found.
- Bean method 'mongo' not loaded because @ConditionalOnMissingBean (types: org.springframework.data.mongodb.MongoDbFactory; SearchStrategy: all) found bean 'mongoDbFactory'

required a bean of type 'com.mongodb.Mongo' that could not be found.

Hi,

I tried replicating your work, but it seems not working on my end. Can you help me what is that I'm doing wrong ?

Thanks.

Below is the error Stack

2020-02-12 21:48:37.881  INFO 11634 --- [  restartedMain] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2020-02-12 21:48:37.950  INFO 11634 --- [  restartedMain] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-02-12 21:48:38.085 ERROR 11634 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method mongoTemplate in com.sclabs.MultiTenantMongoDBTesting.MultiTenantMongoDbTestingApplication required a bean of type 'com.mongodb.Mongo' that could not be found.

The injection point has the following annotations:
	- @org.springframework.beans.factory.annotation.Autowired(required=true)

The following candidates were found but could not be injected:
	- Bean method 'mongo' in 'MongoAutoConfiguration' not loaded because @ConditionalOnBean (types: org.springframework.data.mongodb.MongoDbFactory; SearchStrategy: all) found beans of type 'org.springframework.data.mongodb.MongoDbFactory' multiTenantMongoDbFactory, mongoDbFactory


Action:

Consider revisiting the entries above or defining a bean of type 'com.mongodb.Mongo' in your configuration.

Very nice example. More docs?

Example works, but in a non-example solution, how would a @RestController access the MultiTenantMongoDbFactory? @Inject into the service? (sorry if this is more of a generic spring noob question)

Switch entire connection instead of database only

Very good example, but in a more complex scenario where there is the need of switch between different connections, you think we can implement the getDb() creating a new DB instance with the entire connection's settings (eg: MongoDbUtils.getDB(Mongo mongo, String databaseName))?

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