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0answers
14 views

Change of session/context in rails application

I'm currently developing an app in Ruby on Rails with a social network side, and have several different models including users, groups and pages. I would like to allow users to be group/page admins, ...
0
votes
0answers
11 views

Can rabbitmq client have its own exchange and queue in client environment itself?

Is that possible to create exchange and queue in client environment by the client? Below is the quote from http://blog.dtzq.com/2012/07/amqp-exchanges-and-rabbitmq.html AMQP clients are free to ...
0
votes
1answer
44 views

How to determine if a message should be a command message or event message?

Two enterprise integration patterns are the command message and the event message. I am working on a system in which we use messaging not only for integration with other systems, but for internal ...
2
votes
1answer
134 views

Data Transformation Pipeline

I have create some kind of data pipeline to transform coordinate data into more useful information. Here is the shell of pipeline: public class PositionPipeline { protected ...
0
votes
1answer
58 views

Dependencies between services in pipeline [closed]

I am working on creating a new data processing system, where there are multiple steps each fulfilled by different services. For example, there is a scheduling service that kicks of something, an ...
3
votes
2answers
135 views

Difference between sending a message and emitting it

Halfway through the RabbitMQ tutorial, I noticed that the tutorial stops referring to producers "sending" messages and starts using the verb "emit" instead — and pretty consistently, too; after the ...
0
votes
0answers
82 views

How to ensure correct message ordering in the subscriber using Windows Service Bus for Server?

Scenario: We set up a single topic and a single subscription with a single subscriber, and send two messages to the topic. The first message is received by the subscriber. For the purpose of this ...
1
vote
1answer
226 views

Which one is the fastest Message Broker in case of a single machine? [closed]

I would like to know, which Message Broker I should choose in case of communication among apps within a single PC, considering speed. Among Apache ActiveMQ , MSMQ , RabbitMQ , OpenAMQ which one is ...
1
vote
0answers
124 views

Refactoring expansive message architecture

I am currently working with a system that acts like a message bus. A message comes in to the service (WCF Windows Service hosted). The system then uses a service locator pattern to look up which ...
2
votes
2answers
408 views

Messaging technologies between applications ?

Recently, I had to create a program to send messages between two winforms executable. I used a tool with simple built-in functionalities to prevent having to figure out all the ins and outs of this ...
4
votes
1answer
66 views

Tooling and support for message format specifications

How do most companies define and manage message format specifications? Is it common for companies to create custom tools for creating and working with these documents? At work we have a lot of ...
4
votes
2answers
323 views

Choosing right technology for messaging system

I'm working on a messaging system for two years now, the system was written by a long ago gone team and involves emails and document processing. The basic process is: Receive an email, parse it, ...
-1
votes
1answer
104 views

Which of the following data duplication options across shards is recommended?

High performance mysql book suggests that for sharding a blog application, one may want to put comments data across 2 shards: first, on the shard of a person posting comment, and on the shard where ...
3
votes
2answers
211 views

Managing constants in application

Our application is having 2 parts a web app running ROR and a web service running Sinatra. The application communicates with the mobile device for which we use different constants depending on the ...
2
votes
2answers
225 views

Write own messaging system vs. utilize existing ones

We are trying to have our own startup, with a middleware application to glue small applications with enterprise legacy systems. for such middle-ware to function properly, we will need some sort of ...
5
votes
3answers
236 views

Eliminating Dependencies vs Eliminating Redundancy

Upon my assignment to a project, I discovered that many message classes were received and then kept intact and passed around inside the receiving application. When these messages changed, code ...
1
vote
2answers
1k views

When I should I use message passing over shared memory?

I know a little about how to use message passing and shared memory, but I still don't know when to choose one or another. Can you tell me about their traits (not the implementation)?
7
votes
7answers
329 views

Communication Between Different Technologies in a Distributed Application

I had to a incorporate several legacy applications and services in a network-distributed application. The existing services and applications are written using different languages and technologies, ...
1
vote
3answers
400 views

How can I handle chat messages asynchronously?

I'm working on a program where part of it will be working as a chat between different people. I'm trying to figure out the best way to send and receive messages. A PrintWriter or something similar ...
6
votes
2answers
391 views

Implementation of communication between packages (Java)

I'm making a project with 5 packages. The packages can communicate with each other by sending Messages to a central MessageQueue in the Main package and that MessageQueue takes care of all the ...
0
votes
5answers
466 views

Ways of handling asynchronous receive calls

I am implementing a primitive message-passing system. Currently, I am designing a receive function for async calls. Can I implement such a async receive function without using callback functions?
3
votes
3answers
259 views

What scenarios are implementations of Object Management Group (OMG) Data Distribution Service best suited for?

I've always been a big fan of asynchronous messaging and pub/sub implementations, but coming from a Java background, I'm most familiar with using JMS based messaging systems, such as JBoss MQ, ...