java

License Manager - Java Example

Integration example using Java's built-in HttpClient (Java 11+) and Jackson for JSON.

Structure

java/
├── pom.xml
├── src/main/java/com/licensemanager/
│   ├── LicenseManagerClient.java   # Reusable HTTP client
│   └── SampleApp.java              # Interactive CLI demo
└── README.md

Requirements

• Java 17+ (uses switch expressions and text blocks)
• Maven 3.8+

Quick Start

# Edit SampleApp.java with your credentials, then:
mvn compile exec:java

Using the Client Library

import com.licensemanager.LicenseManagerClient;
import com.licensemanager.LicenseManagerClient.Config;

var config = new Config(
    "https://your-license-server.com",
    "your-api-key",
    "https://your-app.com"
);

try (var client = new LicenseManagerClient(config)) {
    // Activate
    var result = client.activateLicense("PRODUCT_ID", "LICENSE-CODE", "Client Name");
    if (result.isActive) System.out.println("Licensed!");

    // Verify (uses saved license file)
    var verify = client.verifyLicense("PRODUCT_ID");

    // Check for updates
    var update = client.checkForUpdate("PRODUCT_ID", "1.0.0");
    if (update.updateAvailable)
        System.out.println("New version: " + update.version);
}

Integration Tips

• Spring Boot: Register LicenseManagerClient as a @Bean and inject via constructor
• Android: Use on a background thread (network calls block the calling thread)
• Desktop (Swing/JavaFX): Call from a background thread, update UI on the event dispatch thread

License

MIT