[jira] [Created] (IGNITE-17022) Implement interceptors for Ignite Services

["Maxim Muzafarov (Jira)" <ji...@apache.org>]

Maxim Muzafarov created IGNITE-17022:
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             Summary: Implement interceptors for Ignite Services
                 Key: IGNITE-17022
                 URL: https://issues.apache.org/jira/browse/IGNITE-17022
             Project: Ignite
          Issue Type: Improvement
            Reporter: Maxim Muzafarov
             Fix For: 2.14


Currenlty, Ignite Services has a lack of support execution a custom middleware process before and after a service execution. This leads to a lot of boilerplate code.

The IEP-79 describes a draft API of such a feature implementation:
https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=191334119

However, we still need to consider additional crucial points of such API:
- sync or async listeners/interceptors execution (some of processes may require to set and clear threadlocals);
- an exception in the inteceptrod should or should not interrupt a service execution;
- {{context}} may need to be accessible inside interceptors and services;

Also we need to add description about what kind of the {{guarantees}} are provided by Ignite server node during a service execution. It may be necessary to consider the service-per-thread execution logic.



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