Hi Folks, Thanks Udayanga for your guidance & suggestions to make the mid evaluation a success. Currently I am in the process of writing a test case for invoking library functions in Synapse Libraries and test integration for implemented patterns so far. I'll update with the progress.
Thanks, Malith On Thu, Jul 12, 2012 at 7:21 PM, Udayanga Wickramasinghe <udaya...@wso2.com>wrote: > Hi Malith, > > Sorry for my late reply :) Please find my comments inline.. Overall i am > happy about the progress made. There are quite a few things left before we > complete this project. Looking forward to your contributions in the future.. > > On Mon, Jul 9, 2012 at 4:08 AM, Malith Dhanushka <mmali...@gmail.com>wrote: > >> Hi Folks, >> >> Here is the progress update about the $Subject so far. (For more details >> about the project approach refer [0]) >> >> I've attached the initial implementation of EIP library at [0]. >> > i went through this, looks good..I think It would be useful to enable > dynamic expressions for default values.(ie:- to extract values from > predefined location in the message/context not just plain static values) > > >> As per the discussion, these are tasks I came across. >> >> *Task 1* >> Provided a patch [1] to define whether the template parameter is optional >> or not and define parameter default value. >> >> *Task 2* >> As of now, following patterns are implemented. >> >> - Recipient List >> Forward the message to all channels associated with the defined set of >> recipients. >> parameters - recipient_list >> >> - Callout Block >> Blocks external service invocation during mediation. And useful in >> scenarios such as service chaining. Here I had to write a class mediator >> for the EIP library to support xpath for serviceURL in Callout mediator. As >> default values are assigned to source & target xpaths, one can simply >> utilize this pattern by just defining serviceURL. >> parameters - service_URL >> [action] >> [source_xpath | source_key] >> [target_xpath | target_key] >> >> This uses call-out mediator. Would be useful to write the non-blocking > version as well..Lets schedule it to the next phase.. > > >> - Splitter >> This break out the composite message into a series of individual messages. >> parameters - iterate_exp >> [attach_path] >> endpoint_url >> [attach_path_enabled] >> >> - Aggregator >> Builds a single message distilled from the individual messages. >> parameters - aggregator_exp >> oncomplete_seq_enabled] >> [sequence_ref] >> >> - SplitterAggregator >> Provides the combined functionality of Splitter & Aggregator patterns. >> parameters - iterate_exp >> [attach_path] >> endpoint_url >> [attach_path_enabled] >> aggregator_exp >> [oncomplete_seq_enabled] >> [sequence_ref] >> >> *Task 3* >> Created sample scenarios for all above patterns. Later those will be >> added to the documentation. >> ex:- Service Chaining via Callout block >> > > The way you have implemented patterns looks good and complete in > functionality. However Samples for each pattern should be integrated into > synapse samples and test framework so that we can validate their > functionality. I think location for synapse eip library code/configurations > is yet to be decided..For the moment lets have them as test patches. > > >> >> *Task 4* >> Wrote a test case for Recipient List lib pattern. Writing Test cases for >> other patterns are in progress. >> >> In further steps several other well known EIP ( Content-Based Router, >> Dead Letter Channel, Wire Tap, Scatter-Gather, etc..) will be implemented. >> And samples and Test integration into Synapse for EIP libraries will >> also be added. >> >> +1 > i have a few in mind will update [0] about them. > > Regards, > udayanga > > Feedback / Suggestions are much appreciated. >> >> [0] https://issues.apache.org/jira/browse/SYNAPSE-745 >> [1] https://issues.apache.org/jira/browse/SYNAPSE-884 >> >> Thanks, >> Malith >> >> > > > -- > *Udayanga Wickramasinghe* > Software Engineer; WSO2 Inc.; http://wso2.com, > *email: **udaya...@wso2.com* <udayan...@wso2.com>* cell: +94 (77) 983-4365 > blog: **http://udayangawiki.blogspot.com*<http://udayangawiki.blogspot.com/> > * > twitter: **http://twitter.com/udayanga_wick*<http://twitter.com/udayanga_wick> > * > * > -- Undergraduate, Department of Computer Science and Engineering, University of Moratuwa, Sri Lanka. <email-mmali...@gmail.com>
