Log Reader

This project parses a log file and return some aggregated information about the frequency of urls and status codes inside the log content.

Building

I recommend packaging the program with the command ./gradlew shadowJar, that will create a fat jar called log-reader-1.0-SNAPSHOT-all.jar in build/libs.

Usage

Library

As a library, you can use this project by importing it in the system, instantiating one of the possible Parser implementations(or creating yours) and passing a InputStream of your log to the created instance.

CLI

As a CLI, you can use this project by specifying in the command line the method of retrieval of the results and the path for the file. The arguments are as follow:

java -jar log-reader-1.0-SNAPSHOT-all.jar [-h] [-t] [-b] [FILEPATH] [--split|--regex]

• -t - Prints the execution time at the end of execution;
• -b - Runs a benchmark between the implementations, running each a hundred times.
• FILEPATH - Path to the file to be parsed;
• --regex - Implementation to use, in this case, regex;
• --split - Implementation to use, in this case, split, is the default one.

Gradle

To run this program directly from Gradle, you can use the command ./gradlew runProgram '-Parguments=' with the CLI arguments as a comma separated list of values after -Parguments. For example:

// Run default(Split) implementation:
./gradlew run
./gradlew runProgram
./gradlew runProgram '-Parguments='

// Run regex implementation, timed:
./gradlew runProgram '-Parguments=--regex,-t'

// Run benchmarks:
./gradlew runProgram '-Parguments=-b'

// Run for a given file:
./gradlew runProgram '-Parguments=src/main/resources/log.txt'

Sample File

There is a sample file in src/main/resources/log.txt. When no file is defined in the CLI, this file will be used.