File Writing Documentation

Introduction

In any software project, dealing with files is a common necessity. Whether storing user-generated content, saving logs, or manipulating data files, developers need reliable tools for writing and managing files efficiently. The file-worker library simplifies file writing, storing, and appending operations with a well-structured set of utilities.

Imagine you are building a log processing system where you need to store logs efficiently, append new entries, and write structured data into files. This library provides the necessary tools to accomplish these tasks with minimal effort and clear APIs.

Features Overview

The file-worker library offers:

• Easy-to-use methods for writing, storing, and appending file content.
• Support for different encodings and structured data writing.
• File content manipulation with robust and efficient implementations.

Getting Started

For installation and dependencies, refer to the Getting Started guide.

---

Now, let’s dive into how you can use this library in your project.

---

Writing Files with Storable

The Storable interface provides a simple and effective way to write data to files. It allows you to store bytes, strings, and collections of strings.

Example: Writing a String to a File

Storable storable = new Storable() {};
File file = new File("example.txt");
String content = "Hello, World!";

// Write string content to file
storable.toFile(file, content);

System.out.println("File written successfully!");

This creates a file example.txt and writes "Hello, World!" inside it.

Example: Writing a List of Strings

List<String> lines = List.of("First line", "Second line", "Third line");
storable.toFile(file, lines);

System.out.println("File written with multiple lines!");

This writes multiple lines to the file, making it useful for logs or structured text data.

---

Appending Data with LineAppender

Sometimes, instead of overwriting a file, you may want to append data. LineAppender helps you achieve this.

Example: Appending Lines to a File

File logFile = new File("log.txt");
LineAppender.appendLines(logFile, "New log entry", "Another log entry");

System.out.println("Log entries appended!");

This ensures that new lines are added to the existing file content.

---

Writing and Storing Data with StoreFileExtensions

For developers working with structured files, StoreFileExtensions provides utility methods to write content efficiently.

Example: Writing Data with Encoding

File dataFile = new File("data.txt");
String data = "Sample data with UTF-8 encoding";

StoreFileExtensions.toFile(dataFile, data, "UTF-8");

System.out.println("Data written with encoding!");

This ensures that the content is stored with the correct character encoding.

---

Writing Large Files with WriteFileExtensions

If you need to work with large files, WriteFileExtensions provides optimized methods for efficient writing.

Example: Writing a Byte Array to a File

byte[] binaryData = { 72, 101, 108, 108, 111 }; // "Hello" in ASCII
File binaryFile = new File("binary.dat");

WriteFileExtensions.writeByteArrayToFile(binaryFile, binaryData);

System.out.println("Binary file written successfully!");

This ensures that even binary data can be written efficiently.

---

Unit Testing & Reliability

To ensure reliability, this library includes unit tests that verify functionality.

Example: Testing File Writing

@Test
public void testToFileWithString() throws IOException {
    File testFile = new File("test.txt");
    String expectedContent = "Test content";
    
    storable.toFile(testFile, expectedContent);
    
    String actualContent = ReadFileExtensions.fromFile(testFile);
    assertEquals(expectedContent, actualContent);
}

These unit tests provide confidence that the file operations work as expected.

---

Conclusion

The file-worker library offers a comprehensive set of tools for file writing, storing, and appending. Whether you're building a log system, writing configuration files, or storing structured data, this library provides a simple and efficient API to handle your file operations seamlessly.

Start using it today and take the hassle out of file management in your Java applications!