Add StellaOps.Workflow engine: 14 libraries, WebService, 8 test projects

Extract product-agnostic workflow engine from Ablera.Serdica.Workflow into
standalone StellaOps.Workflow.* libraries targeting net10.0.

Libraries (14):
- Contracts, Abstractions (compiler, decompiler, expression runtime)
- Engine (execution, signaling, scheduling, projections, hosted services)
- ElkSharp (generic graph layout algorithm)
- Renderer.ElkSharp, Renderer.ElkJs, Renderer.Msagl, Renderer.Svg
- Signaling.Redis, Signaling.OracleAq
- DataStore.MongoDB, DataStore.PostgreSQL, DataStore.Oracle

WebService: ASP.NET Core Minimal API with 22 endpoints

Tests (8 projects, 109 tests pass):
- Engine.Tests (105 pass), WebService.Tests (4 E2E pass)
- Renderer.Tests, DataStore.MongoDB/Oracle/PostgreSQL.Tests
- Signaling.Redis.Tests, IntegrationTests.Shared

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
master
2026-03-20 19:14:44 +02:00
parent e56f9a114a
commit f5b5f24d95
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{
"_comment": "Expression examples in canonical JSON format. Each key shows a different expression pattern.",
"literals": {
"null": { "$type": "null" },
"string": { "$type": "string", "value": "hello" },
"number": { "$type": "number", "value": 42 },
"boolean": { "$type": "boolean", "value": true }
},
"paths": {
"fromStartRequest": { "$type": "path", "path": "start.policyId" },
"fromState": { "$type": "path", "path": "state.customerName" },
"fromPayload": { "$type": "path", "path": "payload.answer" },
"fromResult": { "$type": "path", "path": "result.productInfo.lob" },
"nestedPath": { "$type": "path", "path": "state.entityData.address.city" }
},
"objectConstruction": {
"$type": "object",
"properties": [
{ "name": "policyId", "expression": { "$type": "path", "path": "state.policyId" } },
{ "name": "status", "expression": { "$type": "string", "value": "ACTIVE" } },
{ "name": "tags", "expression": {
"$type": "array",
"items": [
{ "$type": "string", "value": "motor" },
{ "$type": "string", "value": "casco" }
]
}}
]
},
"comparisons": {
"equals": {
"$type": "binary", "operator": "eq",
"left": { "$type": "path", "path": "state.status" },
"right": { "$type": "string", "value": "APPROVED" }
},
"notEquals": {
"$type": "binary", "operator": "ne",
"left": { "$type": "path", "path": "state.status" },
"right": { "$type": "string", "value": "REJECTED" }
},
"greaterThan": {
"$type": "binary", "operator": "gt",
"left": { "$type": "path", "path": "state.premium" },
"right": { "$type": "number", "value": 1000 }
}
},
"booleanLogic": {
"not": {
"$type": "unary", "operator": "not",
"operand": { "$type": "path", "path": "state.isRejected" }
},
"and": {
"$type": "binary", "operator": "and",
"left": { "$type": "path", "path": "state.isValid" },
"right": {
"$type": "unary", "operator": "not",
"operand": { "$type": "path", "path": "state.isRejected" }
}
},
"or": {
"$type": "binary", "operator": "or",
"left": {
"$type": "binary", "operator": "eq",
"left": { "$type": "path", "path": "state.status" },
"right": { "$type": "string", "value": "APPROVED" }
},
"right": {
"$type": "binary", "operator": "eq",
"left": { "$type": "path", "path": "state.status" },
"right": { "$type": "string", "value": "OVERRIDE" }
}
}
},
"functions": {
"coalesce": {
"$type": "function", "functionName": "coalesce",
"arguments": [
{ "$type": "path", "path": "state.customerId" },
{ "$type": "path", "path": "start.customerId" },
{ "$type": "number", "value": 0 }
]
},
"concat": {
"$type": "function", "functionName": "concat",
"arguments": [
{ "$type": "string", "value": "Policy #" },
{ "$type": "path", "path": "state.policyNo" }
]
},
"increment": {
"$type": "function", "functionName": "add",
"arguments": [
{
"$type": "function", "functionName": "coalesce",
"arguments": [
{ "$type": "path", "path": "state.attempt" },
{ "$type": "number", "value": 0 }
]
},
{ "$type": "number", "value": 1 }
]
},
"conditional": {
"$type": "function", "functionName": "if",
"arguments": [
{ "$type": "path", "path": "state.isVip" },
{ "$type": "string", "value": "VIP" },
{ "$type": "string", "value": "Standard" }
]
},
"uppercase": {
"$type": "function", "functionName": "upper",
"arguments": [{ "$type": "path", "path": "state.annexType" }]
},
"nullCheck": {
"$type": "function", "functionName": "isNullOrWhiteSpace",
"arguments": [{ "$type": "path", "path": "state.integrationId" }]
},
"arrayLength": {
"$type": "function", "functionName": "length",
"arguments": [{ "$type": "path", "path": "state.documents" }]
}
},
"realWorldPatterns": {
"resolveCustomerId_comment": "Use integration customer ID if present, otherwise use lookup ID",
"resolveCustomerId": {
"$type": "function", "functionName": "if",
"arguments": [
{
"$type": "unary", "operator": "not",
"operand": {
"$type": "function", "functionName": "isNullOrWhiteSpace",
"arguments": [{ "$type": "path", "path": "state.integrationCustomerId" }]
}
},
{ "$type": "path", "path": "state.integrationCustomerId" },
{ "$type": "path", "path": "state.lookupCustomerId" }
]
},
"shouldRetry_comment": "First attempt or previous failed and not timed out",
"shouldRetry": {
"$type": "binary", "operator": "or",
"left": {
"$type": "binary", "operator": "eq",
"left": { "$type": "path", "path": "state.retryAttempt" },
"right": { "$type": "number", "value": 0 }
},
"right": {
"$type": "binary", "operator": "and",
"left": {
"$type": "unary", "operator": "not",
"operand": { "$type": "path", "path": "state.timedOut" }
},
"right": { "$type": "path", "path": "state.integrationFailed" }
}
}
}
}