[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML Router ?
Rahul wrote: > I am wondering if "XML Router" is the next big product > in the XML space following XML accelerators and XML > security gateways. If by an "XML Router" you mean a engine that can take a stream of XML objects and, based on persistent routing rules, direct the flow of those objects to one or more destinations, then you'll find that much of the "Publish and Subscribe" work can be applied to the XML routing problem. i.e. and "XML Router" is often a Publish/Subscribe system that works on messages encoded in XML. I believe that PubSub.com offers the highest horsepower "XML Router" available for general use on the Internet today. Although we currently only support XML streams that originate from RSS/RDF/Atom feeds, newsgroup postings, or SEC Edgar filings, our matching engine is completely general and can provide "routing" support for any stream of XML objects that can be described using either XML Schema or ASN.1. In the future, we will be providing support for other "schemas" in addition to those we currently support. It is important to recognize that the "XML Router" term gets used in a number of often confusing ways. For instance, much of the "XML Routing" that gets done in Web Services is very like "routing" in DNS. i.e. a message is being sent to a logical destination and the "XML Router" looks at the logical destination information in order to route the SOAP object to an appropriate physical resource or server. In another usage, "XML Router" refers to a system that contains a filtering or matching engine that does "content based" routing by matching constraints against the detailed content of the XML object. (i.e. deliver to XXXX if field1="foo" and field2 ="bar"). In the former scenario, the destination of the object is "know" to its originator, in the latter scenario, the destinations are self-selecting -- often without the knowledge of the originators or publishers. It should also be noted that implementing the first scenario is massively easier than doing the second... Anyway, be aware that "XML Router" means different things to different people. bob wyman CTO, PubSub Concepts, Inc. http://pubsub.com
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