Logging System

/**
 * Initialize logging handler 
 */
public V105Log();

/**
 * Enable logging domain to start receiving log events
 * @return Command to enable logging domain
 */
public Command<Void> enable();

/**
 * Clear all browser logs
 * @return Command to clear browser log entries
 */
public Command<Void> clear();

import org.openqa.selenium.devtools.v105.V105Log;

// Initialize logging
V105Log log = new V105Log();

// Enable logging domain
devTools.send(log.enable());

// Clear existing logs
devTools.send(log.clear());

// Navigate and generate some logs
driver.get("https://example.com");

// Disable logging when done
// (Note: V105Log doesn't expose disable, logs remain active until session ends)

/**
 * Get log entry added event stream
 * @return Event stream for new log entries
 */
public Event<org.openqa.selenium.devtools.idealized.log.model.LogEntry> entryAdded();

import org.openqa.selenium.devtools.idealized.log.model.LogEntry;
import java.util.logging.Level;

// Set up log monitoring
log.entryAdded().addListener(logEntry -> {
    System.out.println("Log Source: " + logEntry.getSource());
    System.out.println("Level: " + logEntry.getLogEntry().getLevel());
    System.out.println("Message: " + logEntry.getLogEntry().getMessage());
    System.out.println("Timestamp: " + logEntry.getLogEntry().getMillis());
    System.out.println("---");
});

// Generate different types of logs
devTools.send(Runtime.evaluate("console.log('Info message')"));
devTools.send(Runtime.evaluate("console.warn('Warning message')"));
devTools.send(Runtime.evaluate("console.error('Error message')"));

// Navigate to trigger network logs
driver.get("https://httpbin.org/status/404"); // Will generate network error logs

/**
 * Convert CDP log level to Java logging level
 * @param level CDP log level
 * @return Java logging Level
 */
private Level fromCdpLevel(LogEntry.Level level);

/**
 * Convert CDP timestamp to epoch milliseconds
 * @param timestamp CDP timestamp
 * @return Epoch milliseconds as long
 */
private long fromCdpTimestamp(Timestamp timestamp);

// The conversion happens automatically in entryAdded() events
log.entryAdded().addListener(logEntry -> {
    Level javaLevel = logEntry.getLogEntry().getLevel();
    
    // Handle different log levels
    if (javaLevel.equals(Level.SEVERE)) {
        handleError(logEntry);
    } else if (javaLevel.equals(Level.WARNING)) {
        handleWarning(logEntry);
    } else if (javaLevel.equals(Level.INFO)) {
        handleInfo(logEntry);
    } else if (javaLevel.equals(Level.FINEST)) {
        handleVerbose(logEntry);
    }
});

private void handleError(LogEntry logEntry) {
    System.err.println("ERROR: " + logEntry.getLogEntry().getMessage());
    // Log to file, send alert, etc.
}

private void handleWarning(LogEntry logEntry) {
    System.out.println("WARNING: " + logEntry.getLogEntry().getMessage());
    // Track warnings for analysis
}

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;

public class LogAnalyzer {
    private final Map<String, AtomicInteger> logCounts = new ConcurrentHashMap<>();
    private final List<LogEntry> errorLogs = new ArrayList<>();
    
    public void startLogAnalysis(V105Log log) {
        log.entryAdded().addListener(this::analyzeLogEntry);
    }
    
    private void analyzeLogEntry(LogEntry logEntry) {
        String source = logEntry.getSource();
        Level level = logEntry.getLogEntry().getLevel();
        String message = logEntry.getLogEntry().getMessage();
        
        // Count logs by source
        logCounts.computeIfAbsent(source, k -> new AtomicInteger(0)).incrementAndGet();
        
        // Collect error logs for analysis
        if (level.equals(Level.SEVERE)) {
            errorLogs.add(logEntry);
        }
        
        // Filter specific patterns
        if (message.contains("Failed to load resource")) {
            handleResourceLoadError(logEntry);
        } else if (message.contains("CSP")) {
            handleSecurityPolicyViolation(logEntry);
        } else if (source.equals("network") && level.equals(Level.WARNING)) {
            handleNetworkWarning(logEntry);
        }
    }
    
    public void printLogSummary() {
        System.out.println("Log Summary:");
        logCounts.forEach((source, count) -> 
            System.out.println(source + ": " + count.get() + " entries"));
            
        System.out.println("Total errors: " + errorLogs.size());
    }
}

// Usage
LogAnalyzer analyzer = new LogAnalyzer();
analyzer.startLogAnalysis(log);

// Run tests or navigate pages
driver.get("https://example.com");

// Get summary
analyzer.printLogSummary();

// Logging implementation
public class V105Log implements org.openqa.selenium.devtools.idealized.log.Log {
    public V105Log();
    
    Command<Void> enable();
    Command<Void> clear();
    Event<org.openqa.selenium.devtools.idealized.log.model.LogEntry> entryAdded();
}

// Idealized log entry for Selenium
public class org.openqa.selenium.devtools.idealized.log.model.LogEntry {
    LogEntry(String source, org.openqa.selenium.logging.LogEntry logEntry);
    
    String getSource();
    org.openqa.selenium.logging.LogEntry getLogEntry();
}

// Selenium log entry
public class org.openqa.selenium.logging.LogEntry {
    LogEntry(Level level, long timestamp, String message);
    
    Level getLevel();
    long getMillis();
    String getMessage();
}

// CDP log entry
public class org.openqa.selenium.devtools.v105.log.model.LogEntry {
    LogEntry.Level getLevel();
    String getText();
    String getSource();
    Timestamp getTimestamp();
    Optional<String> getUrl();
    Optional<Integer> getLineNumber();
    Optional<StackTrace> getStackTrace();
}

// CDP log levels
public enum LogEntry.Level {
    VERBOSE("verbose"),
    INFO("info"), 
    WARNING("warning"),
    ERROR("error");
    
    String toString();
}

// CDP timestamp
public class Timestamp {
    Timestamp(Number timestamp);
    
    Number toJson();
    String toString();
}

// Java logging levels used in conversion
public class Level {
    public static final Level FINEST;   // Maps from CDP "verbose"
    public static final Level INFO;     // Maps from CDP "info"
    public static final Level WARNING;  // Maps from CDP "warning"
    public static final Level SEVERE;   // Maps from CDP "error"
}