Christophe Hamerling [Archive] » Non classé

Moving

admin — Wed, 07 Oct 2009 13:16:14 +0000

This blog is moving to http://chamerling.wordpress.com/ (articles have been migrated) but is still syndicated to eBM WebSourcing Blogs at http://blog.ebmwebsourcing.com/home/

Developing under Mac OS X : The keyboard…

Christophe Hamerling — Thu, 16 Apr 2009 10:09:01 +0000

Mac OS X is cool but where are my special characters I need while developing??? Here are some keys combinations which are (quite) useful :

| is under OPTION+SHIFT+L
{ is under OPTION+( and } is under OPTION+)
[ is under OPTION+( and ] is under OPTION+)
\ is under OPTION+SHIFT+/

Should be easier now…

From Linux to Mac OS X – Tip 1 : The Aliases

Christophe Hamerling — Wed, 11 Mar 2009 17:40:27 +0000

Here are a serie of tips when developing under Mac OS X after mostly 8 years in the Linux word.

First tip : The aliases in the Terminal (because I really think that the Terminal is cool ) )

1. Create a .profile file in your $HOME folder
cd $HOME
touch .profile

2. Add aliases in this .profile file
pico .profile
and then syntax is alias foo=’bar’. For example, here are some of my aliases :
alias tx=’open /Applications/TextEdit.app/’
alias mvn2=’/Users/chamerling/Developpement/bin/mvn/apache-maven-2.0.10/bin/mvn’
alias meclipse=’mvn2 eclipse:eclipse’
alias mpetals=’mvn2 archetype:generate -DarchetypeCatalog=http://petals.ow2.org’

My Son

Christophe Hamerling — Mon, 16 Feb 2009 17:11:31 +0000

I was offline for the past 3 weeks since my first son, Loris, was born on January 27th at 4:55 am. Even if I am very tired, this is a really extraordinary experience and I am back!

OW2-Dragon connected to OW2-PEtALS

Christophe Hamerling — Fri, 16 Jan 2009 17:02:07 +0000

This blog entry is about how to use the OW2-Dragon SOA Governance with the OW2-PEtALS ESB.

Thanks to the flexible Fractal architecture PEtALS is based on, I have implemented the Dragon API and integrated it into a custom PEtALS distribution.

Here are some screenshots of my tests, I used the JSR181 Service Engine (based on PEtALS CDK and Axis2) to ‘quickly’ create a collection of JBI services with real WSDL descriptions which will be used in Dragon.

All the resources needed (PEtALS, Dragon and JBI artifacts) and their download links are listed at the bottom of this article.

At startup, PEtALS exposes the Dragon API implementation as a web service at http://localhost:9001/petals/ws/DragonService. This address is the one which as to used to fill the ‘Add Runtime Manager’ Dragon section.

Figure 1 – Configure Connector Service

When submitting, Dragon retrieves the PEtALS runtime manager properties and need to synchronize the execution environments to get an updated view of all the containers and their services.

Figure 2 – Sysnchronize execution environments

After synchronization, the Dragon tool has retrieved all the services definitions which are hosted by the PEtALS container. All all this is now referenced in the Dragon registry. For more details on Dragon features, you can get the Dragon user manual here : http://dragon.ow2.org/doc/doc-en/dragon-userguide-0.9.1.pdf .

Figure 3 – List of hosted Services on PEtALS

I just did a quick test and try to search all the services which have an operation which starts by ‘get’. Going to the ‘Search Service’ section and entering ‘get*’ in the search field returns me a list of compliant services.

Figure 4 – Searching Services

Figure 5 – Search results

By Clicking on a service I just search at, I am now able to see all its properties and its original WSDL file.

Figure 6 – WSDL description

Resources

The Dragon Web Application : http://download.forge.objectweb.org/dragon/dragon-0.9.1.war

The PEtALS-Dragon Enabled standalone distribution : http://maven.objectweb.org/maven2-snapshot/org/ow2/petals/petals-standalone-dragon/1.0-SNAPSHOT/petals-standalone-dragon-1.0-20090116.150059-1-light.zip

The JSR181 Service engine : http://maven.objectweb.org/maven2-snapshot/org/ow2/petals/petals-se-jsr181/1.1-SNAPSHOT/petals-se-jsr181-1.1-20090116.152803-72.zip

The Service Assembly : http://maven.objectweb.org/maven2-snapshot/org/ow2/petals/su/jsr181/sa-jsr181-collection/1.0-SNAPSHOT/sa-jsr181-collection-1.0-20090116.151044-1.zip

I am on Twitter

Christophe Hamerling — Tue, 13 Jan 2009 08:32:52 +0000

You can now follow me on Twitter : http://twitter.com/chamerling

PEtALS November Releases

Christophe Hamerling — Fri, 28 Nov 2008 16:51:38 +0000

Here are the latest PEtALS releases :

petals-se-xslt-2.2.2 : Transform messages
petals-se-validation-0.9 : Validate messages payload
petals-bc-ftp-3.0 : Expose FTP server as service
petals-bc-mail-3.0 : Send/receive mails
petals-se-eip-2.3 Enterprise Integration Patterns for light orchestration
petals-bc-filetransfer-2.2 : Transfer files
petals-jbi-ext-1.0.0 : JBI specification extensions
petals-cdk-jbidescriptor-1.1.1 : CDK level JBI descriptors manipulation
petals-cdk-api-1.0.2 : CDK API…
petals-cdk-core-4.0.6 : THE Component Development Kit

Get all of this stuff on http://petals.ow2.org

JSR181 Tip#1

Christophe Hamerling — Wed, 26 Nov 2008 18:21:22 +0000

Here is a tip on the PEtALS JSR181 Service Engine (which is also available for all JSR181 annotated classes outside of PEtALS).

Today, I spent some time on a customer bug which was not really a bug… I was quite surprising when he said me that he was unable to get its annotated class working on the component. The error was at instantiation time (first JBI message handling) :

org.apache.axis2.AxisFault: The service is unable to load the foo.bar.Service service implementation class. at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430) at org.apache.axis2.jaxws.server.JAXWSMessageReceiver.receive(JAXWSMessageReceiver.java:220) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176) at org.ow2.petals.se.jsr181.JBIListener.onJBIMessage(JBIListener.java:120) at org.ow2.petals.component.framework.listener.MessageExchangeProcessor.processInOutAsProvider(MessageExchangeProcessor.java:524) at org.ow2.petals.component.framework.listener.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:421) at org.ow2.petals.component.framework.listener.MessageExchangeProcessor.process(MessageExchangeProcessor.java:308) at org.ow2.petals.component.framework.listener.MessageExchangeProcessor.run(MessageExchangeProcessor.java:145) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) Caused by: javax.xml.ws.WebServiceException: The service is unable to load the org.ow2.petals.usecase.jsr181.TestService service implementation class. at org.apache.axis2.jaxws.ExceptionFactory.createWebServiceException(ExceptionFactory.java:173) at org.apache.axis2.jaxws.ExceptionFactory.makeWebServiceException(ExceptionFactory.java:70) at org.apache.axis2.jaxws.ExceptionFactory.makeWebServiceException(ExceptionFactory.java:118) at org.apache.axis2.jaxws.server.endpoint.lifecycle.impl.EndpointLifecycleManagerImpl.createServiceInstance(EndpointLifecycleManagerImpl.java:242) at org.apache.axis2.jaxws.server.endpoint.lifecycle.impl.EndpointLifecycleManagerImpl.createServiceInstance(EndpointLifecycleManagerImpl.java:94) at org.apache.axis2.jaxws.server.ServiceInstanceFactoryImpl.createServiceInstance(ServiceInstanceFactoryImpl.java:49) at org.apache.axis2.jaxws.server.EndpointController.handleRequest(EndpointController.java:253) at org.apache.axis2.jaxws.server.EndpointController.invoke(EndpointController.java:98) at org.apache.axis2.jaxws.server.JAXWSMessageReceiver.receive(JAXWSMessageReceiver.java:159) … 9 more

So what? I launched PEtALS in debug mode, and going step by step until the foo.bar.Service class instantiation. ‘Hey what’s up InstanciationException?’.
This is simply because the foo.bar.Service class contains constructors and not the empty one!

The solution is to remove all the constructors which are not very usefull here (since they can not be used), or add an empty constructor. Now it works!

September 08 : PEtALS ESB releases

Christophe Hamerling — Thu, 25 Sep 2008 14:22:39 +0000

September is generally the month of major PEtALS releases. But this year, it is not the case...
We have decided to delay the next major PEtALS release to the end of the year, this is simply because we have lot of things to deal around PEtALS : Customers, French and European research projects (http://www.ebmwebsourcing.com/partenaires/partenaires-recherche.html?lang=en ), ...

So, don't be worry, PEtALS v3.0 will be great, PEtALS v4.0 will be...

While working on these other things, here are some release we have done this month :

Standalone distribution 2.2.1 : Bugfix and stability again
Component Development Kit 4.0.3
Updated JBI components such as SOAP (now with REST support), POJO, XQUARE (JDBC), XSLT, EIP...
Initial release of the BPEL component based on Orchestra (http://orchestra.ow2.org )

The website has been updated, a forum has been added (http://petals.objectweb.org/forum.html).

PEtALS Social Networks

Christophe Hamerling — Mon, 21 Jul 2008 18:55:55 +0000

Join the PEtALS community on social networks : LinkedIn and FaceBook.

PEtALS ESB 2.2 is out

Christophe Hamerling — Mon, 21 Jul 2008 15:14:47 +0000

PEtALS ESB 2.2 is finally out some weeks late...
This kernel version is distributed as Standalone and Quickstart distribution.

As a reminder, if you are new to PEtALS you should choose to download the Quickstart distribution.
This distribution comes with the new embedded WebConsole (1.2) Management and Monitoring tool which is launched at PEtALS startup so you do not need to deploy the web application in an external web application server such as Tomcat. Just look at http://localhost:7878 !
You will also find some simple integration usecases in this package, all is fully explained in the Quickstart documentation.

We have also released a new Component Development Kit (CDK 4.0). With this CDK, you will be able to create powerful JBI compliant components (Service Engine or Binding Component) with one or two classes...
The SOAP, FileTransfer, XSLT and EIP components have been updated to the CDK 4.0.
An Eclipse plugin based on new JBI descriptors is coming in the next weeks, so stay tuned!

As main developer of the SOAP Binding Component, I am also happy to announce that I have added REST support in the latest release. I will write a tutorial here in the next days.
I am also working on another nice feature around Web Services and Axis2. More information to come...

Cheers,

PEtALS ESB as part of SOA4ALL architecture

Christophe Hamerling — Wed, 21 May 2008 06:45:09 +0000

PEtALS has been choosen as part of SOA4ALL architecture.
One of the SOA4ALL project goal is to create a new infrastructure composed of billions of services.

Here is a short presentation I gave last week during the SOA4ALL project architecture meeting :

| View | Upload your own

New online tool, OS SCMs as cloud and RSS

Christophe Hamerling — Wed, 23 Apr 2008 06:39:43 +0000

I jave just registered PEtALS into CodeNotifier, a new online tool which analyzes Open Source SCMs (currently only SVN is supported). A cloud is then generated and you can subscribe to project commits RSS feeds.
The PEtALS project page is available here and the commits RSS feed is available here.

PEtALS Certified by SUN Microsystems

Christophe Hamerling — Fri, 18 Apr 2008 05:49:02 +0000

It seems that I have forgotten to publish this blog entry, so...

PEtALS 2.1.1.1 Quickstart distribution has been officially JBI certified by SUN Microsystems .
This petals-kernel-2.1.1 based distribution has successfully passed the JBI compatibility test suite (JBI TCK). In other words it means that PEtALS is a complete JSR 208 implementation...
Thanks to all developers and contributors !

PEtALS on Ohloh.net

Christophe Hamerling — Wed, 05 Mar 2008 14:12:07 +0000

PEtALS project is now available on ohloh.net.
Ohloh is an open source network that connects people through the software they create and use.

This collaborative website provides tons of statistics on PEtALS source code, users, developers... Please visit the PEtALS page on ohloh.net.

PEtALS QuickStart 2.1.1

Christophe Hamerling — Tue, 19 Feb 2008 08:39:26 +0000

The PEtALS Team is pleased to announce the release of PEtALS Quickstart 2.1.1. This distribution comes with the latest petals-kernel, and provide the latest WebConsole as embedded service.
This distribution also comes with the brand new JBI Component Development Kit and updated JBI Components.

More details in the release notes.

Too many open files IOException with large number of Axis2 Servic

Christophe Hamerling — Thu, 10 Jan 2008 06:43:42 +0000

This is a problem we met in the PEtALS SOAP Binding Component with large number of Axis2 Service Clients.
In this case, this error happens when too many sockets are open ant are waiting to be closed. Even if I have found some JIRAs about this problem and possible solutions, the only one which work for us is to cleanup the connection after each service call.
It is done like this :

...

ServiceClient client = new ServiceClient(null, service);

Options options = new Options();

...

options.setCallTransportCleanup(true);

client.setOptions(options);

OMElement outBodyElement = null;

try {

outBodyElement = serviceClient.sendReceive(soapAction, inBodyElement);

} catch (AxisFault e) {

throw e;

}

After 10 minutes test with 200 threads creating 'one shot ' ServiceClient and almost 275000 service calls, all worked fine.

Going to JavaPolis 07

Christophe Hamerling — Fri, 07 Dec 2007 06:39:41 +0000

See you next week JavaPolis '07 on the OW2 Consortium booth to talk about and make some 'demos' of the PEtALS Enterprise Service Bus project.

PEtALS Standalone 1.4.3

Christophe Hamerling — Wed, 05 Dec 2007 06:23:29 +0000

PEtALS Standalone platform 1.4.3 is out. This is a maintenance release.
Look at the release notes for more details.

CIMERO2 Editor for PEtALS ESB

Christophe Hamerling — Tue, 04 Dec 2007 21:19:54 +0000

The CIMERO2 editor is an Eclipse plugin originally developed by Bull. This plugin provides features to create a visual representation of your Enterprise Service Bus based architecture. After the design step, the plugin offers the possibility to generate the JBI artifacts (Service Assemblies), and the Ant deployment scripts which will be used to deploy the configuration on the ESB.

We, at eBM WebSourcing, are currently working on better integration of the PEtALS JBI components. You can find a Flash demonstration on how we you can use this plugin on the PEtALS project website demonstration page.

Finally, it is good to notice that this plugin is currently under integration into the Eclipse SOA Tools Platform project (Eclipse STP).

Installing SVN Client on Mac OSX

Christophe Hamerling — Thu, 29 Nov 2007 06:56:01 +0000

I am happy to see that Fink (http://finkproject.org/) is no more needed to easily install a Subversion client on Mac OSX. A client has been packaged by this guy Martin Ott (http://homepage.mac.com/martinott/).

Installation done by clicking on the package...

I am also happy to see that there is a Subversion GUI client for OSX. Working with terminal is cool but sometimes clicking on the mouse is not so bad...

You can found this client on 'La chose interactive' website (http://www.lachoseinteractive.net/fr/communaute/subversion/).

Configuration seems very intuitive... Going to test it for PEtALS project...

PEtALS PACK 2.0

Christophe Hamerling — Fri, 28 Sep 2007 17:10:58 +0000

Friday (evening) September 28th 2007

PEtALS ESB 2.0 is finally out!
It is released at the same time as a 'pack' including all new/compatible modules which have been developed since months.
These modules are :

The PEtALS kernel 2.0
A new Web Console for monitoring and administration
The Component Development Kit 3.0 : Library and tools for easily and rapidly create JBI compliant components.
A collection of JBI compliant components (including new ones like XMPP, HTTP binding components, EIP, RMI Service Engines)
An Eclipse plugin for JBI artifacts development and administration
Docbook based documentation
Brand new website & logo

Complete release note will be available on the PEtALS Website.

PEtALS last week releases

Christophe Hamerling — Mon, 20 Aug 2007 14:19:00 +0000

We have done some releases last week :

1. petals-standalone 1.4 :
    - Integration of a faster message transporter (Dream based)
    - Load balancing
    - Robustness
    - and of course several bug fixes and code optimization

2. petals-component-framework 2.0 :
    - This framework replaces the Component Development Kit (also known as CDK). It allows developers to quickly create powerful JBI components.

3. petals-bc-soap 2.0 :
    - Based on the petals-component-framework.
    - WS security
    - WS notification

Zip archives and documentation are available for download on the PEtALS downloads page.