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The AppendURI transformation provides a way to add information to the default value that comes from the log entries used to build the dataset.

The transformation places a name-value pair at the end of the internal field used to create the URI dimension. The name-value pair is built using the Query String Key parameter as the name and the value of the identified Input parameter as the value of the pair. The AppendURI command adds any appropriate ? and & symbols necessary to separate the name-value pairs from the URI stem and from any previous AppendURI operations that may have been applied to the URI.

The AppendURI transformation works only when defined in the Transformation.cfg file or a Transformation Dataset Include file.

Parameter Description Default
Name Descriptive name of the transformation. You can enter any name here.
Comments Optional. Notes about the transformation.
Condition The conditions under which this transformation is applied.
Default The default value to use if the condition is met and the input value is not available.
Input The name of the field whose value is appended to the URI.
Query String Key The name to use in the creation of the name-value pair being appended.

Consider a website that was constructed using a traditional Model-View-Controller approach. In such systems, it is common to have a single web page be the point of access into the system. For such a site, visualizations of traffic patterns in the system would be very uninteresting and would provide no insights into visitor utilization and traffic flow. For example, consider a website that funnels all web requests through a URI of the following form:


The modelview ASP page receives all traffic and determines its actions based on the value of the id field in the query. By default, the URI dimension would contain a single entry:

  • modelview.asp

This would result in a rather uninteresting mapping of the traffic through the site, as all traffic is being funneled through a single URI. To address this particular scenario and provide a more informative view into the underlying architecture of the website, AppendURI can be used to move some of the unique name-value pairs from the cs-uri-query field to the URI dimension used for visualizations. The transformation shown below gives the details of such a transformation:

In this example, there are two pages used by the system to handle all requests: modelview.asp and xmlmodelview.asp. One page is used for browser traffic, and the other is used for system-to-system XML communications. The application server process uses the id name of the cs-uri-query to determine which action to take. Therefore, you can extract the value from the id field and append it to the URI. The result is a collection of URIs with a range of variation that reflects visitor traffic through the website. Here, a String Match condition determines the log entries to which the transformation is applied by searching the cs-uri-stem field for the two web pages of interest and ignoring all others. The input (the value of our name-value pair) is the result of cs-uri-query(id), which is “login.” As specified by the Query String Key parameter, the name being appended is “id.” Thus, for the incoming cs-uri value of our example, the resulting URI used by the URI dimension is /modelview.asp&id=login.

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