File Filter Utility

This is a Java-based utility for filtering data from input files into separate output files based on data type (integers, floats, strings) with statistics collection.

Requirements

• Java Version: 17
• Build System: Maven 3.8.6 or later
• Dependencies:
  • Apache Commons Lang 3.14.0 (org.apache.commons:commons-lang3:3.14.0)
    • Link: https://mvnrepository.com/artifact/org.apache.commons/commons-lang3/3.14.0

Project Structure

• src/main/java/com/example/FileFilterUtility.java: Main application logic
• pom.xml: Maven configuration file
• README.md: This instruction file

Installation

1. Install Java 17:
   • Download and install Java 17 from Adoptium.
   • Verify installation:

     java -version
     

Install Maven:

• Download and install Maven 3.8.6 or later from Apache Maven.
• Verify installation:

  mvn --version

Clone the Repository

• Clone or download the project from GitHub:

  git clone https://github.com/nepridumalsore/TestTask.git
  cd TestTask

Building the Project

1. Navigate to the project directory and run:
2. Run the following command to build the project and create the JAR file:

   mvn clean package

3. The executable JAR will be created in target/TestTask-0.0.1-SNAPSHOT.jar.

Usage

• Run the utility with the following command:

  java -jar target/TestTask-0.0.1-SNAPSHOT.jar [options] input_file1 [input_file2 ...]

Command-Line Options

• -a: Append mode (append data to output files instead of overwriting).
• -s: Short statistics (display only the count of integers, floats, and strings).
• -f: Full statistics (display count, min, max, sum, and average for numbers; count, min/max length for strings).
• -p : Prefix for output file names (e.g., -p sample-creates sample-integers.txt, sample-floats.txt, sample-strings.txt).
• -o : Output directory for result files (e.g., -o output saves files to output/).

Example

1. Create input files (in1.txt, in2.txt) in the project directory:

   echo -e "Lorem ipsum dolor sit amet\n45\nПример\n3.1415\nconsectetur adipiscing\n-0.001\nтестовое задание\n100500" > in1.txt
   echo -e "Нормальная форма числа с плавающей запятой\n1.528535047E-25\nLong\n1234567890123456789" > in2.txt

2. Run the utility:

   java -jar target/TestTask-0.0.1-SNAPSHOT.jar -s -a -p sample- in1.txt in2.txt

3. Expected output:

    Statistics:
    Integers: 3
    Floats: 3
    Strings: 6   
   

4. Check output files:
   • sample-integers.txt:

    45
    100500
    1234567890123456789
   
   

• sample-floats.txt:

  3.1415
  -0.001
  1.528535047E-25
  
  

• sample-strings.txt:

  Lorem ipsum dolor sit amet
  Пример
  consectetur adipiscing
  тестовое задание
  Нормальная форма числа с плавающей запятой
  Long