Introduce GraphQL Server-side Caching

[DimuthuMadushan]

Purpose

Fixes: #3621
Fixes: #6017

Related release: https://github.com/ballerina-platform/ballerina-release/issues/2623

Examples

import ballerina/graphql;

@graphql:ServiceConfig {
    cacheConfig: {
        enabled: true,
        maxAge: 50
    }
}
service /graphql on new graphql:Listener(9090) {
    private string name = "Ballerina GraphQL";
    private string 'type = "code first";

    resource function get name() returns string {
        return self.name;
    }

    resource function get 'type() returns string {
        return self.'type;
    }

    remote function updateName(graphql:Context context, string name) returns string|error {
        check context.evictCache("name");
        self.name = name
        return self.name;
    }
}

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec
• Checked native-image compatibility
• No commons package changes (if there are any, please update the GraphQL version in GraphQL tools and Ballerina dev tools)
• No compiler package changes (if there are any, please update the GraphQL version in Ballerina dev tools)

[codecov]

Codecov Report

Attention: 63 lines in your changes are missing coverage. Please review.

Comparison is base (c2fd94e) 86.26% compared to head (188b858) 86.22%.
Report is 1 commits behind head on master.

Files	Patch %	Lines
...va/io/ballerina/stdlib/graphql/compiler/Utils.java	46.15%	9 Missing and 12 partials ⚠️
...l/compiler/service/validator/ServiceValidator.java	81.94%	1 Missing and 12 partials ⚠️
...vice/validator/ResourceConfigAnnotationFinder.java	18.18%	8 Missing and 1 partial ⚠️
...a/stdlib/graphql/compiler/ServiceAnalysisTask.java	55.55%	3 Missing and 1 partial ⚠️
ballerina/engine.bal	94.11%	3 Missing ⚠️
...er/ModuleLevelVariableDeclarationAnalysisTask.java	0.00%	3 Missing ⚠️
...allerina/stdlib/graphql/runtime/engine/Engine.java	80.00%	2 Missing and 1 partial ⚠️
ballerina/context.bal	80.00%	2 Missing ⚠️
...mpiler/schema/generator/GraphqlSourceModifier.java	95.74%	2 Missing ⚠️
ballerina/annotation_processor.bal	92.85%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1735      +/-   ##
============================================
- Coverage     86.26%   86.22%   -0.04%     
- Complexity      771      811      +40     
============================================
  Files           130      131       +1     
  Lines          9153     9497     +344     
  Branches       3569     3676     +107     
============================================
+ Hits           7896     8189     +293     
- Misses          953      979      +26     
- Partials        304      329      +25     

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[sonarqubecloud]

Quality Gate passed

Issues
3 New issues

Measures
0 Security Hotspots
No data about Coverage
0.7% Duplication on New Code

See analysis details on SonarCloud