@allma/core-cdk/dist-logic/allma-core/llm-adapters/adapter-registry.js

Core AWS CDK constructs for deploying the Allma serverless AI orchestration platform.

import { LLMProviderType } from '@allma/core-types';
import { log_error } from '@allma/core-sdk';
import { GeminiAdapter } from './gemini-adapter.js';
import { BedrockAdapter } from './bedrock-adapter.js'; // NEW
// import { OpenAIAdapter } from './openai-adapter.js'; // Future
// Use a singleton pattern for adapter instances to leverage caching (e.g., API keys)
const adapterInstances = {};
/**
 * Factory function to get an instance of an LLM provider adapter.
 * Caches instances to reuse API keys and clients.
 * @param provider The LLM provider type.
 * @returns An instance of LlmProviderAdapter.
 * @throws An error if the provider is not supported.
 */
export function getLlmAdapter(provider) {
    // Check cache first
    if (adapterInstances[provider]) {
        return adapterInstances[provider];
    }
    let adapter;
    switch (provider) {
        case LLMProviderType.GEMINI:
            adapter = new GeminiAdapter();
            break;
        // NEW case for AWS Bedrock
        case LLMProviderType.AWS_BEDROCK:
            adapter = new BedrockAdapter();
            break;
        // To add a new provider:
        // 1. Create a new `NewProviderAdapter` class.
        // 2. Add a case here to instantiate it.
        // case LLMProviderType.OPENAI:
        //   adapter = new OpenAIAdapter();
        //   break;
        default:
            log_error(`Unsupported LLM provider requested: ${provider}`);
            throw new Error(`Unsupported LLM provider: ${provider}`);
    }
    // Cache the new instance
    adapterInstances[provider] = adapter;
    return adapter;
}
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