#java, #soa, #cloud, #opensource #quikhubapp
The videos of all the OW2Con2011 have been published to the OW2 Youtube channel. My talk about Petals BPM and The Cloud is also available.
You are right, I need to smile more, be less tired and have a demo of the BPM editor working on low resolution displays… BTW, the demo of the DSB Monitoring & Management console used to deploy and monitor BPEL process works.
Publié dans Conference
Last week at OW2Con, Talend CTO talked about their data and service integration solution. This sentence impressed me (almost this one, not sure it was so short):
We have more than 500 connectors!
Wow! Great, let’s have a look to that! What is a connector? In the Petals ESB context connectors are the bindings represented in the upper part of this well-known image
Petals ESB
So, we have almost 8 connectors. Looks that we are poor… So let’s look in details what is a Talend connector: http://www.talendforge.org/components/.
Can you see that? A Talend component is almost an operation in a service, or let’s say that it is an input/output from a data source. So a service is not as generic as a Petals service but it is a specialized service i.e. we can also have tons of ‘components’ for Petals ESB, it just means that we have to provide configuration artifacts for all the services that we find: Salesforce, Amazon EC2, S3, all the databases in the world, etc, … Oh no, wait! Don’t you see the Talend component on the bottom of the figure just above? Yes we have a Talend connector so we have 500+ components in Petals ESB 
No really, Talend guys really do an incredible work and their recent press releases are really impressive. Congrats!
Publié dans PEtALS
I was in Paris last week for the OW2 annual conference and I gave a talk called “Petals BPM and the Cloud” during the Open Cloud Summit Session (wow what a name!). This talk was about showing that we have things running and ready to be published in the Cloud. As I said during my talk, difficulty is not to provide the SaaS layer, pushing a Web app to the Cloud is not so hard (and not so interesting). The interesting part is about building the PaaS layer. In the current case, the PaaS will provide “Integration as a Service”, or how we can use Petals Service Bus, to provide ways to integrate, orchestrate, manage and monitoring business services.
My son is an open source fan
So let’s go back on my talk, where I planned to show things working… Unfortunately, I was not able to show anything due to some low resolution problems and this was really a shame; next time I will prepare a video in case of something like that happens. I am going to record these videos this week to show that we have interesting things under development : We can create business processes with Petals BPM and deploy them on the service bus in order to execute and monitor the process itself in a distributed way.
While waiting these videos, here are the slides of my talk. There are sort of ‘zen’ slides so the talk I gave was really important to understand all… So come and see me next time, or just send me comments.
For the other parts of the conference, as usual, there were really interesting presentations and discussions around OW2, open source and Cloud. One fun thing which I learnt was that OW2-Jonas is used in MS Azure Cloud solution as support of J2EE apps (can I also inform that Microsoft was a big sponsor of OW2Con? Yes, really, they gave money for an open source conference, that’s fun). Well, there were so many interesting things and I can not list all here. But open source is really something companies should have a look if they do not did it already, they will be surprised to see how active and professional is the community behind it.
Publié dans Cloud, Conference, PEtALS, SOA
Last week was the first annual review meeting of the Play project I work on since one year. I am involved at several levels in this project: from the architecture point of view, to the software integration and quality ones. On my side, my goal is to provide the efficient software infrastructure for events actors, or how to build an Event Driven Architecture based on Petals Distributed Service Bus. There are others points which have to be developed, especially all the platform governance stuff and Service Level Agreement for events, what we call Event Level Agreement.
We showed several things to the European Commission reviewers and we were also able to show an early prototype (this one was originally planned to be show at mid project ie in 6 months…). I made a video capture of the demo, which really needs to be explained…
So do we need such machinery to do things like that? No, if you want to do some other simple mashup portal. There are several components which are under active development: Storage and processing. Yes we store all events in the Play platform. This storage will be huge, but it is one of the project goal: Providing efficient and elastic storage in some P2P way. The need for this storage comes with the other important aspect of the project: Complex Event Processing. We will soon be able to create complex rules on top of events and be able to generate notifications based on past and real time notifications because we have efficient storage and real time stuff inside the platform. I am not an expert of this domain, so I can not give more details about that point but capabilities are huge! For example, we can express something like “Hey Play, can you send me a SMS me when there is my favorite punk rock band playing just around and I am not on a business trip and X and !Y or Z”. All of this intelligence coming from the processing of various sources I push since months in the platform coming from Twitter, FB, last.fm and other data providers.
Now let’s take some time to work on my OW2Con talk. The session name is pretty cool : Open Cloud Summit Session.
Publié dans Play
I explained in the last articles how I tested the Play Framework, Web sockets and how I integrated all this nice stuff with a real example based on a Service Bus, Web services Notifications, etc…
This time, let’s go one step further. We have a Service Bus which is Web service notification enabled like last time. We can bind services to the bus, expose service endpoints as Web services, blahblahblah… But, this time, I am interested on having some real time monitoring of service invocations. It means that each time a message goes through the service bus (a service invocation in fact), I want to know (almmost) immediatly the service response time.
Hopefuly, the PetalsLink Distributed Service Bus I develop and use provides many extension points. One is the capability to add modules to the routing engine ie the software module each message must be able to go through on service request and response. So adding some router module which catch all the messages, timestamp them and then send this monitoring data to someone is quite easy. At the implementation level, this monitoring router module publishes monitoring reports to the service bus notification engine topic dedicated to monitoring stuff.
So, a client interested in monitoring data just has to register itself as subscriber to the monitoring notification topic. Every time a message is published in the topic, it will be delivered to all the subscribers. Up to the subscriber to display data as soon as it can. This is where Play, Web sockets and some cool javascript library came in. Since I never developed javascript stuff, I tried to find an easy to integrate solution to create some moving plots, asking twitter. I finally found the Smoothie Chart library which is really easy to use and updates graph in real time.
The high level architecture of the system can be defined as
The following video shows the result of the complete stack: Each time a message a service is invoked with SOAPUI, a Web service notification is sent to a Play application which subscribed to the monitoring topic, the Play application then pushes the data to the client by using a Web socket. Finally, the javascript code on the client side feeds the Smoothie chart which updates automatically. At the end, it is quite simple and efficient.
Oh, I forgot to say something: This took me 2 or 3 hours to create all this stuff… The code has been published on github in the dsbmanager-webapp project.
Yet another ‘nightly project’ (thanks to current house build project and the lack of sleep it brings). This time I needed to be able to manage the so-famous Service Bus from some Web enabled tooling. I already developed such tool in a research project but the fact is that the licence of some libraries are not compatible with the petalslink open source approach. The second thing is that it is GWT based (which bores me, has almost 100 libraries dependencies and takes 10 minutes to compile). So this application is a good candidate to compare development productivity between GWT and the Play Framework. Here is a summary of the application creation:
As a result, I think I worked around 3 hours on this application. I think I spent one hour to resolve a dependency conflict between Play and a CXF dependency but as a result I have a good result which is almost equivalent in functionality to the GWT based application. I still miss some operations but I do not need them for now… I feel ashamed to say how long it tooks me to create the GWT version…
Let’s talk about deployment… I did not have time to play with heroku to push this application in the cloud. Tis will be a future step but since I use Play and git, I am able to push the code to github and then pull it on an OVH server I rent. I am able to provide this instance for some project partners if they want to manage the service bus. The time it took? 5 minutes (wget play, git clone and play start…).
The Play enabled application is available on github at chamerling/dsbmanager-webapp.
Publié dans Java
Dédramatiser le Bus de Service que je développe depuis 2 ou 3 ans, tel est le but de ces quelques slides que j’ai présenté à l’équipe R&D la semaine dernière…
Publié dans Uncategorized
Le projet PLAY ne déroge pas à la règle de la vidéo explicative et voici donc la première expliquant un scénario d’utilisation avec le fameux Paul…
Publié dans Play
Ca y est, le call pour OW2Con 2011 est lancé, il n’y a plus qu’à y répondre! Sur la lignée de ce que j’ai présenté l’an dernier, je pense soumettre quelque chose plus axé sur une démonstration en montrant la chaine complète SOA et BPM orientée Cloud que nous sommes en train de développer activement au département R&D de PetalsLink.
PetalsLinkLabs Stack
Following the successes of the 2009 and 2010 editions of OW2 Annual Conference, we are very pleased to launch now OW2Con 2011, that will take place on November 23 and 24 in Orange Labs’ innovative and professional conference site “Issy Innovation Garden” in Paris.
The event will offer two days of high-level technical presentations around open source middleware technologies and generic applications. This will be a unique opportunity for attendees and sponsors of the event to meet with peers and network with the international open source community at large. All sessions will take place in English language, including technical and business presentations, and featuring the OW2 Open Source Cloudware Initiative. Parallel sessions (BoFs, side events, third parties projects) will complete the program. Among the main novelties that will be included in the OW2Con 2011 program, the “SQUAT” project (Software Quality Assurance and Trustworthiness) is a major one. Unique program of this kind, SQuAT has the aim to improve the quality of code by generalizing quality tests on OW2 technologies and setting up a quality label. Additionally, one year after the launch of the Open Source Cloudware Initiative and the involvement in current or future collaborative projects, OW2 has reaffirmed its position as a main actor in the open source cloud computing area that will be demonstrated during the conference.Source, http://www.ow2.org/view/Events/OW2AnnualConference2011
Publié dans Conference
PetalsLink ce n’est pas juste Petals ESB. C’est aussi toute une collection d’outils complémentaires pour créer une véritable pile Open Source. Bertand Escudié, Président de PetalsLink, donne un aperçu de notre vision dans cette vidéo tournée lors de SolutionsLinux 2011.
Tant qu’on y est, PetalsLink s’agrandit et cherche des consultants pour développer le business sur Paris. Des postes en R&D sont aussi ouverts sur Toulouse.
Publié dans Conference, PetalsLink, SOA
