Refactorings/repository pattern

[dseurotech]

This PR replaces the static DAOs in favour of injectable Repositories, and introduces transaction management within services.

Related Issue
This PR expands upon (and includes) #3705

Description of the solution adopted
PR3726 - DAOs to Repositories Presentation.pdf

Usage of static DAOS has been replaced by injectable Repositories (see org.eclipse.kapua.storage.KapuaEntityRepository and subclasses), with proper transaction management (TxManager class), and more flexible cache management with the KapuaEntityRepositoryCachingWrapper and subclasses.

Any side note on the changes made
The changes in this PR affect indirectly the generation of events (now explicit, as per slides) and the wiring of ServiceModules (that now need to be explicitly declared in the module's wiring)

Deprecations

• org.eclipse.kapua.commons.service.internal.ServiceDAO and all classes extending/using it, e.g.: ServiceConfigDAO, in favour of org.eclipse.kapua.storage.KapuaEntityRepository and subclasses
• org.eclipse.kapua.commons.core.ServiceModuleConfiguration and ServiceModuleProvider, in favour of directly binding ServiceModule classes in guice's wiring
• org.eclipse.kapua.commons.event.ServiceEventModule class hierarchy, in favour of org.eclipse.kapua.commons.event.ServiceEventTransactionalModule
• Old persistence logic in package org.eclipse.kapua.commons.jpa.*, in favour of org.eclipse.kapua.storage.TxManager and related classes:
  • EntityManager
  • EntityManagerCallback
  • EntityManagerContainer
  • EntityManagerFactory
  • EntityManagerSession
  • EntityManagerVoidCallback
  • TransactionManager
  • TransactionManagerNotTransacted
  • TransactionManagerTransacted
• org.eclipse.kapua.service.device.management.commons.AbstractDeviceManagementServiceImpl in favour of AbstractDeviceManagementTransactionalServiceImpl in the same package

[codecov]

Codecov Report

Merging #3726 (58d6e14) into develop (d763e11) will decrease coverage by 0.20%.
The diff coverage is 17.14%.

❗ Current head 58d6e14 differs from pull request most recent head 705ca1d. Consider uploading reports for the commit 705ca1d to get more accurate results

@@              Coverage Diff              @@
##             develop    #3726      +/-   ##
=============================================
- Coverage      20.61%   20.42%   -0.20%     
  Complexity         6        6              
=============================================
  Files           1902     1935      +33     
  Lines          40721    41503     +782     
  Branches        3878     3946      +68     
=============================================
+ Hits            8395     8476      +81     
- Misses         31914    32630     +716     
+ Partials         412      397      -15     

Files Changed	Coverage Δ
...stractKapuaConfigurableResourceLimitedService.java	0.00% <0.00%> (ø)
...onfiguration/AbstractKapuaConfigurableService.java	0.00% <0.00%> (ø)
...uration/AbstractKapuaConfigurableServiceCache.java	100.00% <ø> (ø)
...iguration/KapuaConfigurableServiceSchemaUtils.java	72.00% <ø> (ø)
.../kapua/commons/configuration/ServiceConfigDAO.java	0.00% <ø> (ø)
...ons/configuration/ServiceConfigurationManager.java	0.00% <ø> (ø)
...ion/ServiceConfigurationManagerCachingWrapper.java	26.08% <0.00%> (ø)
...kapua/commons/core/ServiceModuleConfiguration.java	0.00% <ø> (-66.67%)	⬇️
.../kapua/commons/core/ServiceModuleProviderImpl.java	0.00% <ø> (ø)
...a/org/eclipse/kapua/commons/crypto/CryptoUtil.java	75.40% <ø> (ø)
... and 73 more

... and 254 files with indirect coverage changes