diffusion/src/node_modules/client/command-service.js

Diffusion JavaScript client

var ErrorReason = require('../../errors/error-reason');

/**
 * Factory for command services, wrapping the service implementation to catch errors and dispatch an appropriate
 * error response to the request callback.
 *
 * @param {Function} service the command service handler function
 * @returns {Object} command service wrapper
 */
module.exports.create = function(service) {
    return {
        onRequest : function(internal, message, callback) {
            try {
                service(internal, message, callback);
            } catch (e) {
                callback.fail(ErrorReason.CALLBACK_EXCEPTION, e.message);
            }
        }
    };
};