@ceramicnetwork/core/lib/handlers-map.js

Typescript implementation of the Ceramic protocol

import { TileDocumentHandler } from '@ceramicnetwork/stream-tile-handler';
import { Caip10LinkHandler } from '@ceramicnetwork/stream-caip10-link-handler';
import { ModelHandler } from '@ceramicnetwork/stream-model-handler';
import { ModelInstanceDocumentHandler } from '@ceramicnetwork/stream-model-instance-handler';
import { StreamType } from '@ceramicnetwork/streamid';
function defaultHandlers() {
    const tile = new TileDocumentHandler();
    const caip10Link = new Caip10LinkHandler();
    const model = new ModelHandler();
    const instance = new ModelInstanceDocumentHandler();
    const handlers = new Map();
    handlers.set(tile.type, tile);
    handlers.set(caip10Link.type, caip10Link);
    handlers.set(model.type, model);
    handlers.set(instance.type, instance);
    return handlers;
}
export class HandlersMap {
    constructor(logger, handlers) {
        this.logger = logger;
        this.handlers = handlers || defaultHandlers();
    }
    get(type) {
        const id = typeof type == 'string' ? StreamType.codeByName(type) : type;
        const handler = this.handlers.get(id);
        if (handler) {
            return handler;
        }
        else {
            throw new Error(type + ' is not a valid stream type');
        }
    }
    add(streamHandler) {
        this.logger.debug(`Registered handler for ${streamHandler.type} stream type`);
        this.handlers.set(streamHandler.type, streamHandler);
        return this;
    }
}
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