Python Bluecoat proxy log file generator (simulator)

General information for the business: na
Kind of development: New program from scratch
Description of requirements/functionality: Generate random logs compliant to a bluecoat format where most rows are benign, but a certain percentage are “infected” from elements picked from one or more files:
File 1: list of IP addresses, one per line
File 2: list of domains, one per line
File 3: delimited list of urls, one per line
The file generator will be needed to generate log files of many millions of lines, so code efficiency is important.

Detailed requirements in the attached specification.
Specific technologies required: python
OS requirements: Linux
Extra notes: Attached files:
BlueCoatLogGen_Spec - detailed specification of what is required
bluecoat.json - Example output required
ip.txt - Example lists of threats to be injected into the logs ... i can only upload 3 files in total, so will give examples of urls and domains upon request