LogAnalyzer - IntelliJ IDEA Plugin

An IntelliJ IDEA plugin for analyzing Apache/Nginx log files with detailed insights and visualizations.

Analyze Apache/Nginx log files directly in your IDE with powerful insights:

• Traffic Analysis - View request patterns by hour with visual charts
• Status Codes - Distribution of HTTP response codes with percentages
• Top Endpoints - Most frequently accessed URLs
• Performance Metrics - Response size analysis and data transfer statistics
• Security Analysis - Detect suspicious activity and potential attacks

Perfect for developers and DevOps engineers who need to analyze web server logs during development and debugging.

✨ Features

📊 Real-Time Analysis

• Live Watch Mode - Automatically re-analyze logs when files change
• Instant Processing - Parse thousands of log entries in seconds
• Visual Charts - ASCII-based charts for traffic patterns and distributions

🔍 Advanced Filtering

• Keyword Search - Filter by IP address, endpoint, or any text
• Date Range - Analyze specific time periods
• Status Code Filter - Focus on specific HTTP response codes
• Combined Filters - Stack multiple filters for precise analysis

📈 Comprehensive Analysis

• Traffic by Hour - Request distribution with visual timeline
• Status Code Breakdown - Success rates, errors, and redirects
• Top Endpoints - Most accessed URLs with request counts
• Performance Metrics - Response sizes and data transfer statistics
• Security Analysis - Detect brute force attempts and suspicious IPs

📤 Export Capabilities

• HTML Reports - Beautiful, self-contained reports with charts
• JSON Data - Machine-readable format for further processing
• One-Click Export - Quick access via toolbar or keyboard shortcut

⌨️ Keyboard Shortcuts

• Ctrl+F - Focus search field
• Ctrl+Shift+G - Export report
• Ctrl+W - Toggle watch mode
• Escape - Clear filters
• Enter - Apply filters

📸 Screenshots

Main Interface

Analysis Results

HTML Export

🔧 Installation

Build and Install from Source

1. Clone this repository:

   git clone https://github.com/Matei-Gatin/LogAnalyzer-Plugin.git
   cd LogAnalyzer-Plugin

2. Build the plugin:

   ./gradlew buildPlugin

   The plugin will be built to: build/distributions/LogAnalyzer-Plugin-*.zip

3. Install in IntelliJ IDEA:

   • Open IntelliJ IDEA
   • Go to Settings → Plugins → ⚙️ (gear icon) → Install Plugin from Disk
   • Select the .zip file from build/distributions/
   • Restart IntelliJ IDEA

Development Mode (For Testing)

Run the plugin in a sandbox IDE:

./gradlew runIde

📖 Usage

Basic Analysis

1. Right-click any .log file in your project
2. Select "Analyze Log File"
3. View results in the LogAnalyzer tool window

Watch Mode (Real-Time Monitoring)

1. After analyzing a file, click "▶ Start Watch Mode"
2. Any changes to the log file will trigger automatic re-analysis
3. Click "⏸ Pause Watch" to stop monitoring

Filtering Logs

1. Use the filter panel at the top of the tool window
2. Enter search keywords, date ranges, or status codes
3. Click "Apply Filter" or press Enter
4. Results update immediately to show only matching entries

Exporting Reports

1. Click the "📤 Export Report" button in the toolbar
2. Choose format: HTML (visual) or JSON (data)
3. Select save location
4. Optionally open the report immediately

🛠️ Built With

• IntelliJ Platform SDK - Plugin framework
• Java 21 - Core language
• Gradle - Build system
• Gson - JSON processing

📝 Supported Log Formats

Currently supports:

• Apache Combined Log Format
• Nginx Access Logs

Example log format:

127.0.0.1 - - [30/Oct/2024:10:15:30 +0000] "GET /api/users HTTP/1.1" 200 1234

🎯 Use Cases

• Development - Analyze local development server logs
• Debugging - Track down errors in production logs
• Performance - Identify slow endpoints and large responses
• Security - Detect brute force attacks and suspicious activity
• Monitoring - Watch logs in real-time during testing

🚀 Roadmap

Future features planned:

• Custom log format support
• More export formats (PDF, CSV)
• Advanced visualizations
• Log comparison tool
• Custom alert rules

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

📄 License

MIT License - see LICENSE file for details

👨‍💻 Author

Matei Gatin

• GitHub: @Matei-Gatin

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