Config 5: Simple & Practical Config

Scenario

Real-world practical scenario dengan configuration yang umum digunakan: database connection, cache settings, dengan simple nested objects dan arrays of objects.

Use Case

Standard application configuration untuk database connection pooling dan cache cluster configuration.

Input: CONFIG5.yaml

database:
  host: localhost
  port: 5432
  name: middleware_db
  username: ace_user
  password: secure_pass_123
  connectionPool:
    minSize: 5
    maxSize: 20
    timeout: 30
  allowedIPs:
    - 192.168.1.100
    - 192.168.1.101
    - 10.0.0.50

cache:
  enabled: true
  ttl: 3600
  provider: redis
  nodes:
    - host: redis1.example.com
      port: 6379
    - host: redis2.example.com
      port: 6379

Output: hasilParseConfig5.json

{
  "database": {
    "host": "localhost",
    "port": "5432",
    "name": "middleware_db",
    "username": "ace_user",
    "password": "secure_pass_123",
    "connectionPool": {
      "minSize": "5",
      "maxSize": "20",
      "timeout": "30"
    },
    "allowedIPs": ["192.168.1.100", "192.168.1.101", "10.0.0.50"]
  },
  "cache": {
    "enabled": "true",
    "ttl": "3600",
    "provider": "redis",
    "nodes": [
      {
        "host": "redis1.example.com",
        "port": "6379"
      },
      {
        "host": "redis2.example.com",
        "port": "6379"
      }
    ]
  }
}

ESQL Usage

Get Database Config

DECLARE dbConfig REFERENCE TO Environment.Variables;
DECLARE success BOOLEAN;

CALL ACE_LIB.getConfig(
    'APP_DB_CONFIG',
    'database',
    '/path/to/CONFIG5.yaml',
    '600',
    dbConfig
) INTO success;

IF success THEN
    -- Connection details
    DECLARE dbHost CHARACTER dbConfig.host;
    DECLARE dbPort CHARACTER dbConfig.port;
    DECLARE dbName CHARACTER dbConfig.name;
    
    -- Connection pool settings
    DECLARE minPool CHARACTER dbConfig.connectionPool.minSize;
    DECLARE maxPool CHARACTER dbConfig.connectionPool.maxSize;
    
    -- Allowed IPs
    DECLARE ipRef REFERENCE TO dbConfig.allowedIPs[1];
    WHILE LASTMOVE(ipRef) DO
        DECLARE allowedIP CHARACTER ipRef;
        -- "192.168.1.100", "192.168.1.101", "10.0.0.50"
        MOVE ipRef NEXTSIBLING;
    END WHILE;
END IF;

Get Cache Config

DECLARE cacheConfig REFERENCE TO Environment.Variables;
DECLARE success BOOLEAN;

CALL ACE_LIB.getConfig(
    'APP_CACHE_CONFIG',
    'cache',
    '/path/to/CONFIG5.yaml',
    '600',
    cacheConfig
) INTO success;

IF success THEN
    -- Cache settings
    DECLARE cacheEnabled CHARACTER cacheConfig.enabled;
    DECLARE cacheTTL CHARACTER cacheConfig.ttl;
    DECLARE cacheProvider CHARACTER cacheConfig.provider;
    
    -- Redis nodes
    DECLARE nodeRef REFERENCE TO cacheConfig.nodes[1];
    WHILE LASTMOVE(nodeRef) DO
        DECLARE nodeHost CHARACTER nodeRef.host;
        DECLARE nodePort CHARACTER nodeRef.port;
        -- Connect to redis node...
        MOVE nodeRef NEXTSIBLING;
    END WHILE;
END IF;

Key Features Tested

✅ Multiple root keys (database, cache)
✅ Simple nested objects (1-level deep)
✅ Arrays of simple strings (allowedIPs)
✅ Arrays of objects (nodes)
✅ Practical real-world config structure
✅ Multiple configs dari same file

Important Notes

Config ini representasi typical application configuration
Dapat load multiple keys dari same file dengan cache ID berbeda
Structure simple tapi complete untuk production use
Numeric dan boolean values jadi string ("5432", "true")

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