Interaction diagrams are designed to display how the objects will realize the particular requirements of a system. Interaction diagrams mostly focus on message passing and how these messages make up one functionality of a system. It does not manipulate the data associated with the particular communication path. With the caller are used in the FDL template.Interaction Diagram are used in UML to establish communication between objects. invokeRegex regular expression extracts named fields, called, method and params. You would rarely need to change the FDL generation templates. If you browse customize.py, you will see that the trace extraction regular expressions and the FDL statement generation templatesĪre defined to next to each other. This file contains the regular # expression definitions for parsing of the body for different # trace types. Parsing of this text # depends upon the type of the trace. # body This is the text following the type statement. # traceMapper maps the type to the trace handler that will parse the # trace body and extract information for generating an FDL statement. The type here is used to determine the # mapping to an FDL statement. # file The next square bracket contains filename, line number information. # For a C function use the function name. For C++ methods use the calling objects class name. The current regular expression # assumes that all traces are of the format: # type body # time The trace begins with time information in square brackets # generator Entity generating the trace message. # The trace messages follow this high level format. Regular expression that extracts trace information from sample_trace.txt is shown below: We start with defining a regular expression that extracts information from the trace format. Templates and Regular Expressions Trace Template Is great for testing your regular expressions. The Python website has a good introduction to regular expressions.For a quick overview of FDL, refer to theĮventStudio User Manual. The FDL (Feature Description Language) will be used to generate sequence diagrams. Learning FDL - The Sequence Diagram Markup Language Let's visit these topics before we go any further. The mapping will also require a basic understanding We will be mapping traces to FDL statements to generate the sequence diagrams. Remarks that are shown on the right side of a sequence diagram. The config.py file lets you configure the trace to sequence diagram (FDL) mapping for: In most cases however, there will be changes needed in config.py to map your trace format to the FDL input needed by EventStudio. Match the trace output in sample_trace.txt you can skip this step. Step 2: Customize Regular Expressions to Map Traces to FDLīy now you would have seen a sequence diagram generated from the sample trace output. context-diagram.pdf - A context diagram of the object interactions.sequence-diagram.pdf - A sequence diagram showing object level interactions.Navigate to the directory where to the Python scripts for this project were downloaded.Ĭonvert an included sample trace file into a sequence diagram by typing the following on the command prompt:Ĭlick on the following generated diagrams in the document directory: Open a command line prompt in the directory where the Python scripts were unzipped. We start with downloading a few tools:ĭownload and install the free Community Edition of EventStudio System Designer.ĭownload and install the latest version of Python 3.Xĭownload and extract the latest release of the trace to sequence diagram Python scripts Let's get started by converting a sample trace into a sequence diagram. Step 1: Sample Trace to Sequence Diagram Conversion The traces to be included in the visualization are selected by specifying the regular expressions. The Python scripts presented here let you visualize the traces as sequence diagrams. Browsing through the code traces is an exercise in frustration.
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