Build two independent inter-communicating processes (A & B) able to exchange data using two different means of data transfer/messaging services. The processes could be headless - run from a command line, or have a GUI (You will provide instructions for using them).
For communication use any two of several methods available, such as…
- Network sockets
- ZeroMQ (or equivalent for chosen programming language)
- Netty
- Other messaging brokers (could use a test broker hosted online)
- Other
Using one method of communication, Process A must connect with B and send contents of the provided data file cad_mesh.stl (a CAD geometry). On receiving the data, B, which has earlier established a second channel of communication with A, must return the data. A will then save the received data in a file called output.stl (cad_mesh.stl must match output.stl).
- The application/s may run on a single Windows or Linux workstation; may be connected to the web or not. Alternatively the two processes A & B could be deployed and run on two independent work stations.
- Developed in the candidate's choice of programming language.
- Candidates must provide executables for functional evaluation, as well as code for review and discussion during subsequent follow-up interview discussion. The delivered package must include any necessary configuration or other files.
- The deliverables must include documentation that could be followed to download, install and/or run the application.
- The code must be organized and well-documented.
- The effort is expected to take between 2 - 8 hours based on the candidate’s experience in network application development.
- We’re looking for code that is clean, readable, performant and maintainable.
- The developer must think through the process of deploying and using the solution and provide necessary documentation.
- The choice of messaging services used will not matter as long as the final code performs as expected.
- Implement one-way communication from process A to B using any single method of data transfer.
- Process B is to save received data in a file called output.stl
- In Process B, implement a parser that reads the .stl file, extracts each vertex in the file and generates an Output.csv file containing the vertices.
- The Output.csv file must be formatted to contain data (x,y,z) for each vertex on an independent line. The positional data coordinate values, each a float, must have 4 significant digits following the decimal point.
- Return the output.csv file to process B.
- If not familiar, the candidate is expected to independently conduct research online to understand the format of an .STL file, which is a commonly used CAD format.
In order to submit the assignment, do the following:
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Navigate to GitHub's project import page: https://github.com/new/import
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In the box titled "Your old repository's clone URL", paste the homework repository's link: https://github.com/Machina-Labs/network_com_hw
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In the box titled "Repository Name", add a name for your local homework (ex.
network_com_soln) -
Set privacy level to "Public", then click "Begin Import" button at bottom of the page.
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Develop your homework solution in the cloned repository and push it to Github when you're done. Extra points for good Git hygiene.
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Send us the link to your repository.