# Com / Optage

## Overview

The `com.optage` package serves as a parent namespace for the Optage application's data-processing infrastructure. It contains a single direct child sub-package — `com.optage.kopt` — which houses the batch-processing and SOD (Send-Out-Data) dispatch pipeline. At the time of this writing, all classes within the package are auto-generated fixture stubs, meaning no production logic is yet implemented. However, the structural patterns encoded by these stubs define a clear intended architecture: batch orchestration entry points delegate to specialized subsystem processors, while the SOD pipeline applies a validation-then-dispatch flow.

This package appears to be part of a larger enterprise system where batch jobs prepare and validate data payloads, and a separate SOD subsystem formats and sends those payloads to downstream consumers. The fixture scaffolding suggests work is in early stages — method signatures are defined, relationships are established, but the actual business logic must still be wired in.

## Sub-module Guide

The `com.optage` package delegates all functionality to its sole child module, **`kopt`**, which organizes work across two sub-packages:

- **`batch`** — Batch-level entry points (`KKPRC14901`, `KKPRC24901`, `KKPRC34901`) that serve as the top-level triggers for batch processing. `KKPRC14901` is the only partially implemented class; it delegates to an external `ekk` subsystem. The other two are no-op placeholders.

- **`bp`** — SOD processing subsystem centered on `JKKHakkoSODCC`, which validates data, delegates sending to `JKKSodSendCC`, and normalizes data via `JKKHakkoSODHelper`. Shared initialization is handled by `JKKBpServiceBase`.

These two sub-packages form a cross-cutting relationship: the `bp` subsystem depends on `KKPRC14901` from the `batch` package as a shared validation gate. This means the batch and SOD pipelines are not independent; they converge on `KKPRC14901.check()` as a common invariant-checking primitive.

## Key Patterns and Architecture

### Delegation as the primary design pattern

Every class in the package follows a delegation pattern rather than implementing logic directly. Methods create instances of downstream classes and call their work methods, or are no-op stubs. This is consistent with their fixture status but also suggests the intended architecture: each class acts as a facade or coordinator that composes behavior from specialized components elsewhere in the codebase (e.g., the `ekk` package).

### Validation gate pattern

`JKKHakkoSODCC` reuses `KKPRC14901.check()` as a validation gate before dispatching SOD data. This shared reference means both the batch and SOD pipelines rely on the same validation logic. Any future changes to validation should flow through `KKPRC14901.check()` to keep both pipelines in sync.

### Fixture scaffolding

All classes carry Javadoc indicating they are auto-generated for SPEC-SCOPED-WIKI tests. They should be treated as structural scaffolding — the method signatures and class relationships define the intended public API, while the actual implementation bodies must still be filled in. This is an important signal for developers: when replacing stubs with real code, preserve the declared interfaces.

### Architecture diagram

The following diagram shows how the `com.optage` package, its `kopt` child module, and the sub-modules interact:

```
flowchart TD
  Optage["com.optage
(parent package)"] --> Kopt["kopt
(batch + SOD subsystems)"]
  Kopt --> Batch["batch
fixture entry points"]
  Kopt --> Bp["bp
SOD processing"]
  Batch --> KKPRC["KKPRC14901
primary batch fixture"]
  Batch --> KKPRC2["KKPRC24901
secondary stub"]
  Batch --> KKPRC3["KKPRC34901
tertiary stub"]
  KKPRC --> EKK["EKK0301A010
external ekk
subsystem"]
  Bp --> HakkoSODCC["JKKHakkoSODCC
SOD controller"]
  Bp --> SodSend["JKKSodSendCC
SOD dispatch"]
  Bp --> HakkoHelper["JKKHakkoSODHelper
string formatting"]
  Bp --> BpService["JKKBpServiceBase
shared init"]
  HakkoSODCC --> SodSend
  HakkoSODCC --> KKPRC
```

The data flow, once fully implemented, would proceed as follows:

```
flowchart LR
  Trigger["Batch trigger /
SOD job"] --> KKPRC["KKPRC14901
check() + run()"]
  KKPRC --> EKK["EKK0301A010
process()
external subsystem"]
  Trigger --> HakkoSODCC["JKKHakkoSODCC
validate()"]
  HakkoSODCC --> KKPRC
  HakkoSODCC --> HakkoHelper["format()
normalization"]
  HakkoSODCC --> SodSend["send()
SOD dispatch"]
```

## Dependencies and Integration

### Internal dependencies

- **`batch → ekk`**: `KKPRC14901.run()` delegates to `EKK0301A010` from the `com.optage.kopt.ekk` package. This is a sibling package within `kopt`, suggesting the `ekk` subsystem is another child of the same hierarchy.
- **`bp → batch`**: `JKKHakkoSODCC.validate()` calls into `KKPRC14901` from the sibling `batch` package. This creates an implicit dependency between `bp` and `batch`, even though they are at the same structural level.
- **`bp` internal**: `JKKHakkoSODCC` couples tightly to `JKKSodSendCC` via direct `new` instantiation, which would need refactoring to an interface-based design before production use.

### External classpath dependencies

- The `ekk` package classes (e.g., `EKK0301A010`) must be available on the classpath.
- `KKPRC14901` must be resolvable by both `batch` and `bp` consumers.

## Notes for Developers

- **Everything is a fixture.** No production logic exists in any class yet. The method signatures are the contract — replace no-ops with real implementations while preserving the declared interfaces.
- **Cross-package validation is shared through `KKPRC14901`.** When adding or modifying validation, work through this class to keep both `batch` and `bp` in sync.
- **`JKKHakkoSODCC` uses direct instantiation of `JKKSodSendCC`.** This should be refactored to an interface plus dependency injection before production use, to enable testable mocking of the send channel.
- **No data model classes exist yet.** Data currently flows as method parameters (e.g., `String` to `format()`). Design proper DTOs when moving from stubs to real implementations.
- **`KKPRC24901` and `KKPRC34901` are unused stubs.** They exist as structural placeholders; remove or implement them based on batch processing requirements.
- **`JKKHakkoSODCCTest` is a placeholder.** It asserts `true` and should be replaced with meaningful test cases once `JKKHakkoSODCC` has real behavior.
- **`com.optage` has no indexed source files.** The package itself does not contain any classes; all functionality is delegated through the `kopt` child module. This is consistent with `com.optage` being a namespace package in early stages of development.