If I have a more complex code within my sequence where I can not do only with using existing mediators, can I create a sequence with a custom java logic ? how do u support it within dev - studio ?
Yes you can write custom mediators for WSO2 ESB.
This is all what you want to know about custom mediators.
This is a sample custom mediator explained.
Hope this helps.
Related
Is possible to add a built custom mediator to the WSO2 Developer Studio palette?
The idea is avoid the error: Unkown synapse configuration tag, At line X. when i trying to edit an API or Proxy that has the reference in its sequence.
I am using WSO2 EI Tooling version 6.3.0.
Thanks in advance.
It is possible to add a custom mediator into WSO2 Developer Studio. However, this requires quite a lot of implementation for both wso2-synapse and devstudio-tooling-esb, as WSO2 Developer Studio has been developed on top of the Eclipse GMF framework adhering to the ecore model.
This is a custom mediator implementation, which had been incorporated into Developer Studio recently.
I can't seem to find a way to combine two api json response by using wso developer studio. I'm still reading their documentation and i found that there is a mediator called aggregate mediator but i can't seem cant to find a way to combine the api calls and map it all while using the wso developer studio. So for example Google Contacts and Fullcontact api combines the response
In aggregate mediator, you can not aggregate responses coming from different services. When you are using aggregate mediator you have to use it with clone/iterate mediators. Those mediators will send identical clones/ chunks of message to different endpoints. Those responses will be gathered by aggregate mediator.
In your scenario, you have to use Service Chaining pattern in ESB. Please refer WSO2 documentation [1] and this blog post series [2] will help you to implement your scenario.
You can implement this pattern using developer studio. Just identify what are the components (Ex: Proxy) you need and implement them through Dev Studio.
[1] https://docs.wso2.com/display/ESB490/Service+Chaining+Example
[2] http://dakshithar.blogspot.com/2012/06/routing-and-service-chaining-with-wso2.html
It is difficult to recommend the mediators that you should use, without knowing exact use case. Scatter-Gather pattern with clone and aggregate mediators would be fine if your services are independent(one does not require other's output as input).
If they are dependent, invoke the first one using mediator and you may use a property mediator to remember the output. After the second call, you can combine them using a Payload Factory mediator or, if it is a complex integration, you may use XSLT mediator.
I'm new to the Mulesoft. Currently we have a requirement that need to use Mulesoft to expose a WSDL for Salesforce to call. When Salesforce call this web service, it will transform some account information and Mulesoft will load them to a MySQL table. Could anyone help how can I create this? Thank you!
Definitely... As Nuno said you need to use CXF component in Mule to expose your SOAP webservice.. Actually using Mule platform you can able to expose any kind of Web Service you required like (Soap,Rest) that other applications can able to read ..
Take a look into an easy way of creating the webservice and exposing the WSDL :- http://training.middlewareschool.com/mule/soap-code-first-build/
To publish a SOAP service you should use the CXF component (reference). Take a look into the documentation Publishing a SOAP API to have an ideia in how to begin your flow.
Please take some time to have a quick look into the Mule User guide, since it explains the essentials to start developing with Mule. You will need it to learn how to interact with MySQL too (Database connector).
Can someone plese help me answer the following three question on WSO2:
Does WSO2 Studio support tool based graphical xslt transformation, right now I have to map it to a xslt file created using text editor?
Do all the invocations on WSO2 ESB have to be exposed as "proxy services", be it consuming a jms message or reading from a file system?
Do we have out of box adapters in WSO2 ESB to talk to external systems like SAP, Oracle Apps, Siebel, Peoplesoft etc in a drag and drop fashion without any glue code to be written?
Thanks,
Wajid
Q1. Does WSO2 Studio support tool based graphical xslt transformation, right now I have to map it to a xslt file created using text editor?
Answer:
There is an ongoing effort to implement a Graphical XSLT Transformation tool for Developer Studio. But as I mentioned it is a work in progress. Thus will be available in a future release.
Alternatively, if you are interested you can use existing Smooks editor to perform XML to XML mapping and Graphical Smooks editor in WSO2 Developer Studio will help you to create your smooks configuration with much less effort.
Q2. Do all the invocations on WSO2 ESB have to be exposed as "proxy services", be it consuming a jms message or reading from a file system?
Answer:
If you want to consume a JMS message from a queue or Reading a file using VFS transport, usually proxy services are configured to perform those tasks. But of course you can use Sequences to perform those tasks but then, you need to use these sequences in your proxy service or in REST API.
Q3. Do we have out of box adapters in WSO2 ESB to talk to external systems like SAP, Oracle Apps, Siebel, Peoplesoft etc in a drag and drop fashion without any glue code to be written?
Answer:
No.
Currently IPaaS connector support is not there out of the box for Developer Studio ESB Graphical editor. But it is in Developer Studio road-map which means it will be available in a future release of Developer Studio.
Hope this helps!
/Harshana
You can use the default XSLT editor which comes as a XSLT mapping tool or the smooks (recommended for large message processing)editor. Some of the adapters can be found from here.
Thanks
We are investigating whether or not we can use the WSO2 - ESB as our new platform.
With our current esb we connect external systems to each other over different channels like JMS,FTP,JDBC.
Most of the interfaces are independent of each other. The number of interfaces we have now is about 300.
The processing in each interface consists of :
- connecting to the external systems
- logging the in + outgoing messages
- transformation of the incoming message into an outgoing message.
The transformation of the message is programmed in java.
Since the interfaces are independent of each other, it is not an option for us to stop other interfaces
when we need to deploy a new ( or modified existing ) interface.
What I understood from WSO2 esb is that when using a custom mediator to transform I have to restart the WSO2 - ESB server
when the implementation of the custom mediator changes.
This is not what we want unless it is the only interface running on this esb server.
What are my options given these constraints:
The update of an existing interface should not have any impact on other interfaces.
The transformation of the messages is programmed in Java.
The number of interfaces is around 300.
Usually WSO2 ESB has rich set of mediators to handle transformation and perform mediation it seems you need more than that. You can use Developer Studio, Eclipse based IDE to add a custom mediator without restarting the server. please refer this for more details.