Extracting Business Information from Service Usage Data Using XPath/JsonPath/RegEx
The following use case illustrates how to use the Business Metrics Policy to extract business information from the service usage data using XPath/JsonPath/RegEx from the request payload and derive operational metrics.
Supported Platforms: 8.0 and later.
Configuration
- Launch the Envision Console, select New Dataset, and define a dataset with sharing set to Public.
- In the new dataset, select New Dimension and define a dimension with the TEXT type.
- In the same dataset, select New Metric and define a metric with the the COUNT type and all aggregations.
- Save aggregation settings for the selected dataset.
- Select New Chart, and create a chart using this dataset with the following configuration:
- Select New Dashboard, and create a dashboard with the newly defined chart:
- Launch the Policy Manager Management Console, and create a service using the WSDL file at this address: http://www.restfulwebservices.net/wcf/CurrencyService.svc?wsdl7.
- Virtualize the service on the Network Director.
- Navigate to Policies > Operational and click Add Policy, then create a Business Metrics policy.
- Configure the policy, selecting the dataset you defined earlier, as shown below.
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Provide Extract/Derive Configuration for each of the dimensions and metrics using the example illustrated below:
- Dimension using Extract – To obtain a value in request payload using XPath/JsonPath/RegEx.
- Metric using Derive – To obtain usage count.
- Dimension using Extract – To obtain a value in request payload using XPath/JsonPath/RegEx.
- Attach the policy to the service.
- Send multiple requests to generate data for various usage scenarios.
- Check the data to be recorded in MongoDB and Dataset. The data should be appropriate per the requests sent.
- The chart should record information based on the data generated in the datasets from the above requests.