SP Parser

The SP Parser app prints a report of different visit statistics. The app reads source of the information from a log file provided at command line.

The log file contains one visit information on each line. Each line contains path and IP address separated by a white space. The app expects the format is correct.

Usage

Run the parser by providing a log file name at command line,

./parser webserver.log

Test

Complete test suite is executed by,

ruby test.rb

Design

The parser app is available in file parser.rb. The app functionality is provided by following classes,

visits_log
total_visits
total_visits_report
unique_visits
unique_visits_report

and module,

can_print

VisitsLog

Provides interface for accessing log file and processing its records. It is used by classes which calculate visits.

TotalVisits

Counts every visit made by an IP address to any path. It calls VisitsLog and processes log file one line at a time.

TotalVisitsReport

It prints each path and number of visits to stdout in descending order. The count includes repeated visits.

Example,

/help_page/1 80 visits

UniqueVisits

Counts unique visits, each IP address visiting a path is counted only once. It calls VisitsLog and processes log file one line at a time.

UniqueVisitsReport

It prints each path and number of unique visits to stdout in descending order.