/
simpleMessageManager.js
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/
simpleMessageManager.js
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/**
* @fileOverview
* SimpleMessageManager class definition, a message manager implementation.
*/
var util = require("util");
var clone = require("clone");
var Thywill = require("thywill");
var Message = require("./message");
//-----------------------------------------------------------
// Class Definition
//-----------------------------------------------------------
/**
* @class
* A trivial synchronous in-memory resource manager.
*/
function SimpleMessageManager () {
SimpleMessageManager.super_.call(this);
this.data = {};
}
util.inherits(SimpleMessageManager, Thywill.getBaseClass("MessageManager"));
var p = SimpleMessageManager.prototype;
//-----------------------------------------------------------
// "Static" parameters
//-----------------------------------------------------------
SimpleMessageManager.CONFIG_TEMPLATE = null;
//-----------------------------------------------------------
// Methods
//-----------------------------------------------------------
/**
* @see MessageManager#createMessage
*/
p.createMessage = function (data, metadata) {
var message = new Message();
message.setData(data);
message.setMetadata(metadata);
return message;
};
/**
* @see MessageManager#createReplyMessage
*/
p.createReplyMessage = function (data, message) {
var reply = new Message();
reply.setData(data);
// Sort out reversing addressing in the metadata.
var metadata = clone(message.getMetadata());
var to = metadata[Message.METADATA.TO_APPLICATION];
var from = metadata[Message.METADATA.FROM_APPLICATION];
metadata[Message.METADATA.FROM_APPLICATION] = to;
metadata[Message.METADATA.TO_APPLICATION] = from;
var origin = metadata[Message.METADATA.ORIGIN];
var destination = metadata[Message.METADATA.DESTINATION];
metadata[Message.METADATA.ORIGIN] = destination;
metadata[Message.METADATA.DESTINATION] = origin;
reply.setMetadata(metadata);
return reply;
};
//-----------------------------------------------------------
// Exports - Class Constructor
//-----------------------------------------------------------
module.exports = SimpleMessageManager;