import java.util.HashMap;

import java.util.Map;

import java.util.logging.Logger;

public class EnvVariableMonitor {

private static final Logger logger = Logger.getLogger(EnvVariableMonitor.class.getName());

private final Map<String, String> expectedVars;

public EnvVariableMonitor(Map<String, String> expectedVars) {

this.expectedVars = expectedVars;

}

public boolean validateEnvironment() {

for (Map.Entry<String, String> entry : expectedVars.entrySet()) {

String varName = entry.getKey();

String expectedValue = entry.getValue();

String actualValue = System.getenv(varName);

if (actualValue == null) {

logger.warning("Environment variable '" + varName + "' is missing.");

return false;

}

if (!actualValue.trim().equals(expectedValue.trim())) {

logger.severe("Environment variable '" + varName + "' has unexpected value. Expected: '" + expectedValue + "', Actual: '" + actualValue + "'.");

return false;

}

}

return true;

}

public static void main(String[] args) {

// Example Usage

Map<String, String> expectedVariables = new HashMap<>();

expectedVariables.put("DATABASE_URL", "jdbc:mysql://localhost:3306/mydb");

expectedVariables.put("API_KEY", "your_secret_api_key");

expectedVariables.put("DEBUG", "true");

EnvVariableMonitor monitor = new EnvVariableMonitor(expectedVariables);

if (monitor.validateEnvironment()) {

System.out.println("Environment variables are valid.");

} else {

System.out.println("Environment variables validation failed.");

}

}

}