# Repository Overview

Welcome to the **KOPT** repository — a Java-based batch processing and SOD (complaints dispatch) coordination system. This codebase provides the scaffolding for processing complaint records through a pipeline of batch runners, validation steps, and outbound dispatch logic. Everything here is written in Java and organized under the `com.optage.kopt` package, with classes split into dedicated sub-modules for batch execution, business processing, data transfer objects, and integration points.

If you're new to this project, you're in the right place. This overview will orient you to the architecture, walk you through each module, and suggest a reading order that matches how data actually flows through the system.

---

## Overview

KOPT is a fixture scaffolding project (generated for SPEC-SCOPED-WIKI tests) that models a batch-processing workflow for complaints / SOD (issue notice) dispatch. The system follows a layered design:

1. **Batch entry points** (`batch` package) act as triggers — an external scheduler calls a `run()` method, which delegates deeper into the system.
2. **Business processing** (`bp` package) coordinates validation, formatting, and outbound dispatch of SOD records.
3. **Contracts and notifications** (`ekk`, `kkw` packages) handle the downstream processing logic once data has been validated.
4. **Data models** (`dto` package) carry structured request and response payloads between layers.

The codebase is intentionally minimal: most methods contain stub implementations, but the class structure and delegation patterns are already in place for you to extend.

---

## Technology Stack

- **Language:** Java
- **Frameworks:** No well-known frameworks were detected from import analysis — this project uses plain Java with a standard Maven-style directory layout.
- **Testing:** JUnit (referenced by the `JKKHakkoSODCCTest` test class).
- **Build / dependencies:** Standard `src/main/java` / `src/test/java` layout suggests a Maven or Gradle build; no external dependencies are visible in the current source.

---

## Architecture

The following diagram shows the main modules and their key dependencies. The `batch` layer triggers the `bp` layer for validation, which in turn delegates to `ekk` for downstream processing.

```mermaid
flowchart TD
    subgraph batch["Batch Module com.optage.kopt.batch"]
        B1["KKPRC14901 - Primary"]
        B2["KKPRC24901 - Secondary"]
        B3["KKPRC34901 - Tertiary"]
    end
    subgraph bp["BP Module com.optage.kopt.bp"]
        BP1["JKKHakkoSODCC"]
        BP2["JKKSodSendCC"]
        BP3["JKKHakkoSODHelper"]
        BP4["JKKBpServiceBase"]
    end
    subgraph dto["DTO Module com.optage.kopt.dto"]
        DT1["JKKSodRequestDTO"]
        DT2["JKKSodResponseDTO"]
    end
    subgraph ekk["EKK Module com.optage.kopt.ekk"]
        EK1["EKK0301A010"]
        EK2["EKK0301A020"]
    end
    subgraph esc["ESC Module com.optage.kopt.esc"]
        ES1["ESC0101B001"]
    end
    subgraph kkw["KKW Module com.optage.kopt.kkw"]
        KW1["KKW0100B001"]
    end
    subgraph unrelated["Other"]
        UR1["XYZ99999Unrelated"]
    end
    B1 -->|"delegates to"| EK1
    BP1 -->|"dispatch"| BP2
    BP1 -->|"validate"| B1
    EK1 -->|"triggers"| KW1
    BP1 -.->|"extends"| BP4
```

**Key relationships:**

- **`batch` → `ekk`**: `KKPRC14901.run()` creates an `EKK0301A010` and calls `process()`, which performs the core batch work.
- **`bp` → `batch`**: `JKKHakkoSODCC.validate()` delegates to `KKPRC14901.check()` for batch-level validation.
- **`bp` → `bp`**: `JKKHakkoSODCC.dispatch()` delegates to `JKKSodSendCC.send()` for outbound dispatch.
- **`ekk` → `kkw`**: `EKK0301A010.notify()` triggers `KKW0100B001.trigger()` for downstream notification.
- **`bp` inherits from** `JKKBpServiceBase`, which provides a shared `baseInit()` hook.

---

## Module Guide

### `com.optage.kopt.batch` — Batch Entry Points

The batch package provides three entry-point classes that serve as the top-level triggers for the KOPT system. Each class exposes a `run()` method designed to be called by an external scheduler or orchestrator.

| Class | Purpose |
|---|---|
| **KKPRC14901** | Primary batch processor. `run()` delegates to `EKK0301A010.process()` and includes a `check()` stub for pre-flight validation. This is the most complete class in the package. |
| **KKPRC24901** | Secondary batch processor. Currently a stub (`run()` body is a comment). The naming convention (149xx / 249xx / 349xx) suggests these form a tiered pipeline. |
| **KKPRC34901** | Tertiary batch processor. Also a stub, awaiting implementation. |

To add a new batch workflow, follow the pattern of `KKPRC14901`: define a class in this package with a `run()` method that instantiates and delegates to the appropriate handler in the `ekk` or another subsystem.

### `com.optage.kopt.bp` — Business Processing (SOD Dispatch)

The `bp` module is the central coordination layer for SOD (complaints / issue notice) processing. It orchestrates validation, formatting, and outbound dispatch of SOD records, acting as a thin facade over the `batch` and `ekk` subsystems.

| Class | Purpose |
|---|---|
| **JKKHakkoSODCC** | Main orchestrator. `validate()` delegates to `KKPRC14901.check()`, and `dispatch()` delegates to `JKKSodSendCC.send()`. Follows a create-on-call pattern with no shared state between invocations. |
| **JKKSodSendCC** | Dispatch logic. `send()` handles the outbound transmission of validated SOD records to downstream systems. |
| **JKKHakkoSODHelper** | String formatting utility. `format()` trims whitespace from input — currently minimal, but designed as an extension point for encoding, date formatting, and field truncation. |
| **JKKBpServiceBase** | Shared initialization base class. Provides a protected `baseInit()` hook for configuration loading, database connection setup, or logging initialization. Designed to be extended by other service classes in the `bp` namespace. |
| **JKKHakkoSODCCTest** | Unit test scaffold. A placeholder JUnit test for the SOD dispatch flow. |

### `com.optage.kopt.dto` — Data Transfer Objects

Holds the structured payloads that flow through the system:

| Class | Purpose |
|---|---|
| **JKKSodRequestDTO** | Request payload. Contains `tenantId` and `serviceId` fields for SOD submission. |
| **JKKSodResponseDTO** | Response payload. Contains `status` and `message` fields returned after processing. |

### `com.optage.kopt.ekk` — Contract Processing

The `ekk` module handles the core contract processing logic that batch entry points delegate to:

| Class | Purpose |
|---|---|
| **EKK0301A010** | Primary contract processor. `process()` contains the main batch logic; `notify()` triggers `KKW0100B001` for downstream notifications. |
| **EKK0301A020** | Secondary contract processor. Currently a stub with a `process()` method for a second contract profile. |

### `com.optage.kopt.esc` — Service Control

| Class | Purpose |
|---|---|
| **ESC0101B001** | ESC service control. The `control()` method appears to manage ESC-level service operations. No current cross-module references. |

### `com.optage.kopt.kkw` — Batch Notifications

| Class | Purpose |
|---|---|
| **KKW0100B001** | Batch trigger. The `trigger()` method is called by `EKK0301A010.notify()` for downstream notification operations. |

### `com.optage.kopt.unrelated` — Isolated Classes

| Class | Purpose |
|---|---|
| **XYZ99999Unrelated** | A completely isolated class with a `doSomethingUnrelated()` method. No dependencies or references from other modules. Likely a placeholder for future integration work. |

---

## Getting Started

Here is a recommended reading order for a developer encountering this codebase for the first time. It follows the natural execution flow of the primary batch path:

1. **Start at the entry point** — Read `KKPRC14901` in the `batch` package. This is the class an external scheduler would invoke. Follow its `run()` method, which delegates to `EKK0301A010`.

2. **Explore the contract layer** — Read `EKK0301A010` in the `ekk` package. Its `process()` method performs the core batch logic, and its `notify()` method calls into the `kkw` layer.

3. **Understand the SOD dispatch flow** — Read `JKKHakkoSODCC` in the `bp` package. This class shows how validation and dispatch are coordinated. Then read `JKKSodSendCC` (dispatch) and `JKKHakkoSODHelper` (formatting) to understand the supporting pieces.

4. **Review the data models** — Read `JKKSodRequestDTO` and `JKKSodResponseDTO` to understand the request/response structures.

5. **Look at the test scaffold** — Check `JKKHakkoSODCCTest` in `src/test/java` to see how tests are structured.

6. **Explore secondary modules** — Once the primary flow is clear, review `KKPRC24901`, `KKPRC34901`, `EKK0301A020`, `ESC0101B001`, and `KKW0100B001` as extension points.

### Quick reference

| If you want to… | Start here |
|---|---|
| Trigger the primary batch flow | `KKPRC14901.run()` |
| Process a contract | `EKK0301A010.process()` |
| Dispatch an SOD record | `JKKHakkoSODCC.dispatch()` |
| Validate before dispatch | `JKKHakkoSODCC.validate()` |
| Send outbound | `JKKSodSendCC.send()` |
| Format a string | `JKKHakkoSODHelper.format()` |
| Extend shared init logic | `JKKBpServiceBase.baseInit()` |
| Add a new batch profile | Create a class in `com.optage.kopt.batch` with a `run()` method |