Entries in Hessian (5)
Pet Store Part 1
Pet Store is a sample application that demonstrates how an AS3 client can communicate with a remote application written in Erlang. It exemplifies the usage of AMQP as remoting technology and Cotton as an object serialization protocol. The Cotton Over AMQP library is a high level wrapper around the low level AMQP and Cotton libraries. This provides a Flex client with a very simple programming interface. The interaction with the server is an asynchronous RPC mechanism using the RabbitMQ broker.
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Proposed Serialization Protocol in AS3
Release 0.3.2 of Cotton introduces an AS3 client library which implements a proposed type negotiation extension to the Hessian binary serialization protocol. This article demonstrates the protocol extension using the AS3 library as a client that speaks to a remote server implemented in Erlang. The first section discusses the design principles and protocol flow, so if you are more interested in the working example, you can skip to that section.
Proposed Hessian Extension For Erlang
In a lead up series of articles, I discussed the motivation and protocol flow of an extension to the Hessian web services protocol. This installment outlines the first implementation of the proposed protocol written in Erlang. This article assumes knowledge of the Erlang programming language and the Hessian serialization protocol in order to run the examples. For those that are primarily interested in Hessian and not Erlang, this article is tractable to the extent that you can read over the Erlang specifics.
Hessian Type Negotiation: Protocol Flow
In a previous installment I discussed the motivation behind an extension to the Hessian binary web services protocol. That article demonstrated the efficiency gain of adding explicit type negotiation to the protocol. The goal of this article is to have a deeper look into this extension from a protocol flow perspective.
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Type Negotiation In Hessian
Updated on Monday, March 3, 2008 at 10:38PM by
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This article discusses the motivation behind a type negotiation extension to the Hessian binary web services protocol. The goal of this optional extension is to optimize the handling of type information in terms of network overhead, processing overhead and type mapping in non-reflective languages. This extension has been implemented on top of the Caucho Java Hessian implementation. This article contains a preliminary benchmark and links to download the source of the extension.
