Using load() method for XML data at runtime

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Tony Amos

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Sep 1, 2017, 4:17:37 PM9/1/17
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I would like to load data for a Business Concept at run time by passing in the path to a compliant XML file. I assume I can use the load API call as shown on page 107 of the user manual and in the HelloXMLPeople project, but I am missing something.

I created a Rules.xls with this environment:



And added the following WaterfallModel.xml file to my classpath:

<WaterfallModel >
    <Hurdles type="Array of Hurdle(s)">
        <Hurdle id="0" name="" annualReturn="0.0"/>
    </Hurdles>
    <Investors type="Array of Investor(s)">
        <Investor type="Array of Equity(s)" id="0" name="" note="">
            <Equity hurdleId="0" share="0.0"/>
        </Investor>
    </Investors>
    <CashFlows type="Array of CashFlow(s)">
        <CashFlow period="0" amount="0.00"/>
    </CashFlows>
</WaterfallModel>

Then I added the following method to my xls file:



After the call to load() I will run the decisions, but this is for testing right now. When I call this method I want to pass in the name of the XML file containing the real data to evaluate, but when I open the engine I get the following error:


So I added Datatypes and a Glossary like so:




Now I get a bit further, but here is the error:



Now I suspect that I may be headed down the wrong path so I am looking for guidance. I'm confused since the HelloXMLPeople project doesn't have a Glossary or and Datatypes defined and I don't know where to go next.

My ultimate goal is to be able to pass XML data into the Decision at run-time for processing. If someone can point me toward a project or documentation on this, or provide commentary, I would appreciate it.

Thanks in advance.

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OpenRules Support

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Sep 1, 2017, 4:32:12 PM9/1/17
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Tony,

We don't know the exact structure of your project, but it seems that the first error "Type WaterfallModel not found" is your actual problem. Please replace "classpath:/data/WaterfallModel.xml" to ""file:../data/WaterfallModel.xml" in your Environment table. Here we assume that your folder "data" is at the same level as the folder "rules". Let us know about the results.

Support

Tony Amos

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Sep 4, 2017, 8:04:26 PM9/4/17
to OpenRules
Thank you for the quick feedback. You assumed correctly about my project structure. I tried changing the classpath reference to a file reference, but then the file wouldn't be found unless I included the entire directory path. I set it back to classpath and moved on. When I put my data directory in the classpath, that made the difference. So you were right, the XML file was not found. The next error I got was that the WaterfallModel was already defined - which I had seen already when I used the file reference with the full path to the XML file (yes, an aha! moment). So I removed the Data definitions and it worked as I had hoped.

Thanks for your help and guidance.

Tony
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