Hi,
We are planning to add form generation to HumanTask-explorer webapp [1].
*Current situation as follows:*
Currently HumanTask author create separate .jsp files and embed them in
Main > Human Tasks > List in management console to display task
information, and assignee work form
For Example, in ClaimsApprovalTask sample[2] ApproveClaim-input.jsp
ApproveClaim-input.jsp - Display inputs to the task
ApproveClaim-output.jsp - Generate output message
Since this method increase workload and inefficient from the side of the
humantask author, we decided to add form generation to the
HumanTask-explorer. This proposed method reduces effort needed creating
humantask.
*New Improvement :*
As suggested in [1] configuration need to done by the humantask author as
follows:
"The task author has to define which xml elements in the input message
should be displayed under which label. And which xml elements in the output
message should be filled with which form field. Task authors can provide
this information under the <rendering> element"
<renderings>
<rendering type="wso2">
<inputs>
<element>
<label>[Label to display for the input element]</label>
<value>[xpath to get the value from the input
message]</value>
</element>
...
</inputs>
<outputs>
<element>
<label>[Label to display for the form field]</label>
<value>[xpath of the element in the output message to be
filled with this form field]</value>
</element>
...
</outputs>
</rendering>
</renderings>
Then the humantask webapp can generate the output message by mapping form
fields according to xpath expressions.
Following diagram shows architecture of this new improvement:
1 - retrieve renderings using HumanTaskClientAPIAdmin and generate from.
2 - Create response using ResponseCreator which create soap message when
user submit form.
3 - Send response
We are planning to use Membrane SOA Model[3] library to generate output
message (Response) using humantask wsdl
Suggestions are highly appreciated.
[1] mail : [Architecture] Jaggery based UI for WS-Human Tasks
[2]
https://github.com/milindaperera/product-bps/tree/master/modules/samples/product/src/main/resources/humantask/ClaimsApprovalTask
[3] http://www.membrane-soa.org/soa-model/
Thanks,
Milinda
--
Milinda Perera
Software Engineer;
WSO2 Inc. http://wso2.com ,
Mobile: (+94) 714 115 032
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