[IGNITE-16400] Deprecate direct references to local services. Fix service proxy.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 2.12, 2.11.1
• Fix Version/s: 2.13
• Labels: important
• Release Note: Deprecated IgniteServices#service(String) and IgniteServices#services(String).
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Vladimir Steshin
• Reporter: Vladimir Steshin
• Reviewer: Maksim Timonin
• Created: 26/Jan/22 12:00
• Updated: 30/Mar/22 18:56
• Resolved: 02/Feb/22 09:16

Description

As discussed in the threads related to the main ticket #IGNITE-12464, we deprecate references to local services like

IgniteServices#service()
IgniteServices#services()

and fix behavior of the proxies like

serviceProxy(String name, Class<? super T> svcItf, boolean sticky)

so that a proxy is given every time even for local services.

Reasons in short:

• Direct references to local services corrupt the service statistics.
• Direct references to local services bring no real optimization.
• `serviceProxy()` says 'proxy', '@return Proxy over service'. It should return a proxy and do not variate behavior. Especially depending on user-side settings

Also, the documentation of service metrics and limitations or local services is going to get improved.

Issue Links

• Dependency: IGNITE-15650 Statistics for platform services.
• links to: DevList discussion
• links to: GitHub Pull Request #9771
• links to: GitHub Pull Request #9771