Debugging TuskLang in Java Applications

This guide covers comprehensive debugging strategies for TuskLang configurations in Java applications, including debugging techniques, tools, logging, error analysis, and troubleshooting strategies.

Table of Contents

- Overview - Debugging Tools - Logging and Monitoring - Error Analysis - Configuration Validation - Performance Debugging - Security Debugging - Common Issues - Best Practices - Troubleshooting

Overview

Debugging TuskLang configurations requires understanding the parsing process, variable resolution, FUJSEN function execution, and integration points with Java applications.

Debug Categories

// Debug categories for TuskLang configurations
public enum DebugCategory {
    PARSING,        // Configuration parsing issues
    RESOLUTION,     // Variable and reference resolution
    VALIDATION,     // Configuration validation errors
    EXECUTION,      // FUJSEN function execution
    INTEGRATION,    // Java application integration
    PERFORMANCE,    // Performance bottlenecks
    SECURITY        // Security-related issues
}

Debugging Tools

Use specialized tools to debug TuskLang configurations effectively.

TuskLang Debugger

import com.tusklang.debug.TuskLangDebugger;
import com.tusklang.debug.DebugSession;
public class TuskLangDebugExample {
    
    public void debugConfiguration() {
        // Create debug session
        TuskLangDebugger debugger = new TuskLangDebugger();
        DebugSession session = debugger.createSession();
        
        // Enable detailed logging
        session.setLogLevel(LogLevel.DEBUG);
        session.enableStepByStep(true);
        
        String config = """
            [app]
            name = MyApp
            version = 1.0.0
            
            [database]
            url = postgresql://${app.name}:5432/${database.name}
            name = testdb
            """;
        
        // Parse with debugging
        TuskLangConfig result = session.parse(config);
        
        // Get debug information
        DebugInfo debugInfo = session.getDebugInfo();
        System.out.println("Parse time: " + debugInfo.getParseTime() + "ms");
        System.out.println("Variables resolved: " + debugInfo.getVariablesResolved());
        System.out.println("Functions executed: " + debugInfo.getFunctionsExecuted());
        
        // Get detailed trace
        List<DebugStep> trace = session.getTrace();
        for (DebugStep step : trace) {
            System.out.println(step.getType() + ": " + step.getDescription());
        }
    }
}

Interactive Debug Shell

public class InteractiveDebugger {
    
    public void startDebugShell() {
        TuskLangDebugger debugger = new TuskLangDebugger();
        DebugShell shell = debugger.createShell();
        
        // Start interactive debugging
        shell.start();
        
        // Available commands:
        // parse <config> - Parse configuration
        // step - Step through parsing
        // vars - Show resolved variables
        // functions - Show executed functions
        // trace - Show execution trace
        // validate - Validate configuration
        // help - Show available commands
    }
}

Configuration Inspector

public class ConfigurationInspector {
    
    public void inspectConfiguration(TuskLangConfig config) {
        ConfigurationInspector inspector = new ConfigurationInspector(config);
        
        // Inspect structure
        System.out.println("Sections: " + inspector.getSections());
        System.out.println("Total keys: " + inspector.getTotalKeys());
        System.out.println("Variables: " + inspector.getVariables());
        System.out.println("Functions: " + inspector.getFunctions());
        
        // Inspect specific section
        SectionInfo dbSection = inspector.getSectionInfo("database");
        System.out.println("Database section keys: " + dbSection.getKeys());
        System.out.println("Database section type: " + dbSection.getType());
        
        // Inspect variable dependencies
        Map<String, List<String>> dependencies = inspector.getVariableDependencies();
        for (Map.Entry<String, List<String>> entry : dependencies.entrySet()) {
            System.out.println(entry.getKey() + " depends on: " + entry.getValue());
        }
    }
}

Logging and Monitoring

Implement comprehensive logging for TuskLang operations.

Structured Logging

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.tusklang.logging.TuskLangLogger;
public class TuskLangLoggingExample {
    
    private static final Logger logger = LoggerFactory.getLogger(TuskLangLoggingExample.class);
    private final TuskLangLogger tuskLogger = new TuskLangLogger();
    
    public void parseWithLogging() {
        // Configure logging
        tuskLogger.setLogLevel(LogLevel.DEBUG);
        tuskLogger.enablePerformanceLogging(true);
        tuskLogger.enableSecurityLogging(true);
        
        String config = """
            [app]
            name = MyApp
            secret = @env.secure(API_KEY)
            timestamp = @date(now)
            """;
        
        try {
            // Parse with detailed logging
            TuskLangConfig result = tuskLogger.parse(config);
            
            // Log successful parsing
            logger.info("Configuration parsed successfully", 
                       Map.of("sections", result.getSections().size(),
                             "variables", result.getVariables().size(),
                             "functions", result.getFunctions().size()));
            
        } catch (TuskLangParseException e) {
            // Log parsing errors
            logger.error("Configuration parsing failed", e);
            logger.error("Error details: {}", e.getDebugInfo());
        }
    }
}

Performance Monitoring

public class PerformanceMonitor {
    
    private final PerformanceTracker tracker = new PerformanceTracker();
    
    public void monitorPerformance() {
        // Start monitoring
        tracker.start();
        
        String config = loadLargeConfiguration();
        
        // Parse with performance tracking
        TuskLangConfig result = tracker.parse(config);
        
        // Get performance metrics
        PerformanceMetrics metrics = tracker.getMetrics();
        
        System.out.println("Parse time: " + metrics.getParseTime() + "ms");
        System.out.println("Memory usage: " + metrics.getMemoryUsage() + "MB");
        System.out.println("Variable resolution time: " + metrics.getVariableResolutionTime() + "ms");
        System.out.println("Function execution time: " + metrics.getFunctionExecutionTime() + "ms");
        
        // Check for performance issues
        if (metrics.getParseTime() > 1000) {
            logger.warn("Slow parsing detected: {}ms", metrics.getParseTime());
        }
        
        if (metrics.getMemoryUsage() > 100) {
            logger.warn("High memory usage: {}MB", metrics.getMemoryUsage());
        }
    }
}

Security Monitoring

public class SecurityMonitor {
    
    private final SecurityTracker securityTracker = new SecurityTracker();
    
    public void monitorSecurity() {
        // Enable security monitoring
        securityTracker.enableAuditLogging(true);
        securityTracker.enableSuspiciousActivityDetection(true);
        
        String config = """
            [security]
            api_key = @env.secure(API_KEY)
            password = @encrypt(sensitive_password, AES-256-GCM)
            """;
        
        // Parse with security monitoring
        TuskLangConfig result = securityTracker.parse(config);
        
        // Get security audit
        SecurityAudit audit = securityTracker.getAudit();
        
        System.out.println("Sensitive operations: " + audit.getSensitiveOperations());
        System.out.println("Encryption operations: " + audit.getEncryptionOperations());
        System.out.println("Environment variable access: " + audit.getEnvironmentVariableAccess());
        
        // Check for security issues
        if (audit.hasSuspiciousActivity()) {
            logger.warn("Suspicious activity detected: {}", audit.getSuspiciousActivity());
        }
    }
}

Error Analysis

Analyze and understand TuskLang errors effectively.

Error Classification

public class ErrorAnalyzer {
    
    public void analyzeError(TuskLangParseException exception) {
        ErrorAnalyzer analyzer = new ErrorAnalyzer();
        ErrorAnalysis analysis = analyzer.analyze(exception);
        
        // Classify error
        System.out.println("Error type: " + analysis.getErrorType());
        System.out.println("Severity: " + analysis.getSeverity());
        System.out.println("Line number: " + analysis.getLineNumber());
        System.out.println("Column: " + analysis.getColumn());
        
        // Get context
        System.out.println("Context: " + analysis.getContext());
        System.out.println("Suggestion: " + analysis.getSuggestion());
        
        // Get related errors
        List<RelatedError> relatedErrors = analysis.getRelatedErrors();
        for (RelatedError error : relatedErrors) {
            System.out.println("Related: " + error.getDescription());
        }
    }
}

Error Recovery

public class ErrorRecovery {
    
    public void recoverFromError(String config) {
        ErrorRecovery recovery = new ErrorRecovery();
        
        try {
            TuskLangConfig result = parser.parse(config);
        } catch (TuskLangParseException e) {
            // Attempt automatic recovery
            RecoveryResult recoveryResult = recovery.attemptRecovery(config, e);
            
            if (recoveryResult.isSuccessful()) {
                System.out.println("Recovery successful: " + recoveryResult.getFixedConfig());
                TuskLangConfig fixedResult = parser.parse(recoveryResult.getFixedConfig());
            } else {
                System.out.println("Recovery failed: " + recoveryResult.getReason());
                
                // Manual recovery suggestions
                List<RecoverySuggestion> suggestions = recoveryResult.getSuggestions();
                for (RecoverySuggestion suggestion : suggestions) {
                    System.out.println("Suggestion: " + suggestion.getDescription());
                    System.out.println("Fix: " + suggestion.getFix());
                }
            }
        }
    }
}

Error Reporting

public class ErrorReporter {
    
    public void reportError(TuskLangParseException exception) {
        ErrorReporter reporter = new ErrorReporter();
        
        // Create error report
        ErrorReport report = reporter.createReport(exception);
        
        // Add context
        report.addContext("config_file", "application.tsk");
        report.addContext("environment", "production");
        report.addContext("version", "1.0.0");
        
        // Generate report
        String reportJson = report.toJson();
        System.out.println("Error report: " + reportJson);
        
        // Send to monitoring service
        reporter.sendToMonitoringService(report);
    }
}

Configuration Validation

Validate configurations before and during execution.

Pre-Execution Validation

public class ConfigurationValidator {
    
    public void validateConfiguration(String config) {
        ConfigurationValidator validator = new ConfigurationValidator();
        
        // Set validation rules
        validator.addRule(new RequiredFieldsRule(Arrays.asList("app.name", "database.host")));
        validator.addRule(new PortRangeRule("database.port", 1, 65535));
        validator.addRule(new UrlFormatRule("database.url"));
        validator.addRule(new EnvironmentVariableRule("app.secret"));
        
        // Validate configuration
        ValidationResult result = validator.validate(config);
        
        if (result.isValid()) {
            System.out.println("Configuration is valid");
        } else {
            System.out.println("Configuration validation failed:");
            for (ValidationError error : result.getErrors()) {
                System.out.println("- " + error.getField() + ": " + error.getMessage());
            }
        }
    }
}

Runtime Validation

public class RuntimeValidator {
    
    public void validateAtRuntime(TuskLangConfig config) {
        RuntimeValidator validator = new RuntimeValidator();
        
        // Validate database connection
        DatabaseValidationResult dbResult = validator.validateDatabase(config);
        if (!dbResult.isValid()) {
            logger.error("Database validation failed: {}", dbResult.getError());
        }
        
        // Validate cache connection
        CacheValidationResult cacheResult = validator.validateCache(config);
        if (!cacheResult.isValid()) {
            logger.error("Cache validation failed: {}", cacheResult.getError());
        }
        
        // Validate external services
        List<ServiceValidationResult> serviceResults = validator.validateExternalServices(config);
        for (ServiceValidationResult serviceResult : serviceResults) {
            if (!serviceResult.isValid()) {
                logger.error("Service {} validation failed: {}", 
                           serviceResult.getServiceName(), serviceResult.getError());
            }
        }
    }
}

Performance Debugging

Identify and resolve performance issues in TuskLang configurations.

Performance Profiling

public class PerformanceProfiler {
    
    public void profileConfiguration(String config) {
        PerformanceProfiler profiler = new PerformanceProfiler();
        
        // Start profiling
        profiler.start();
        
        TuskLangConfig result = parser.parse(config);
        
        // Stop profiling
        profiler.stop();
        
        // Get detailed profile
        PerformanceProfile profile = profiler.getProfile();
        
        System.out.println("=== Performance Profile ===");
        System.out.println("Total time: " + profile.getTotalTime() + "ms");
        System.out.println("Parse time: " + profile.getParseTime() + "ms");
        System.out.println("Variable resolution: " + profile.getVariableResolutionTime() + "ms");
        System.out.println("Function execution: " + profile.getFunctionExecutionTime() + "ms");
        
        // Get bottlenecks
        List<PerformanceBottleneck> bottlenecks = profile.getBottlenecks();
        for (PerformanceBottleneck bottleneck : bottlenecks) {
            System.out.println("Bottleneck: " + bottleneck.getOperation() + 
                             " took " + bottleneck.getTime() + "ms");
        }
    }
}

Memory Analysis

public class MemoryAnalyzer {
    
    public void analyzeMemoryUsage(String config) {
        MemoryAnalyzer analyzer = new MemoryAnalyzer();
        
        // Analyze memory usage
        MemoryAnalysis analysis = analyzer.analyze(config);
        
        System.out.println("=== Memory Analysis ===");
        System.out.println("Initial memory: " + analysis.getInitialMemory() + "MB");
        System.out.println("Peak memory: " + analysis.getPeakMemory() + "MB");
        System.out.println("Final memory: " + analysis.getFinalMemory() + "MB");
        System.out.println("Memory increase: " + analysis.getMemoryIncrease() + "MB");
        
        // Check for memory leaks
        if (analysis.hasMemoryLeak()) {
            logger.warn("Potential memory leak detected: {}MB increase", 
                       analysis.getMemoryIncrease());
        }
        
        // Get memory hotspots
        List<MemoryHotspot> hotspots = analysis.getHotspots();
        for (MemoryHotspot hotspot : hotspots) {
            System.out.println("Hotspot: " + hotspot.getOperation() + 
                             " uses " + hotspot.getMemoryUsage() + "MB");
        }
    }
}

Security Debugging

Debug security-related issues in TuskLang configurations.

Security Analysis

public class SecurityAnalyzer {
    
    public void analyzeSecurity(String config) {
        SecurityAnalyzer analyzer = new SecurityAnalyzer();
        
        // Analyze security
        SecurityAnalysis analysis = analyzer.analyze(config);
        
        System.out.println("=== Security Analysis ===");
        System.out.println("Sensitive data found: " + analysis.getSensitiveDataCount());
        System.out.println("Encryption operations: " + analysis.getEncryptionOperations());
        System.out.println("Environment variable access: " + analysis.getEnvironmentVariableAccess());
        
        // Check for security issues
        List<SecurityIssue> issues = analysis.getIssues();
        for (SecurityIssue issue : issues) {
            System.out.println("Security issue: " + issue.getType() + " - " + issue.getDescription());
            System.out.println("Severity: " + issue.getSeverity());
            System.out.println("Recommendation: " + issue.getRecommendation());
        }
        
        // Check compliance
        ComplianceReport compliance = analysis.getComplianceReport();
        System.out.println("GDPR compliance: " + compliance.isGdprCompliant());
        System.out.println("SOX compliance: " + compliance.isSoxCompliant());
        System.out.println("PCI compliance: " + compliance.isPciCompliant());
    }
}

Vulnerability Scanning

public class VulnerabilityScanner {
    
    public void scanForVulnerabilities(String config) {
        VulnerabilityScanner scanner = new VulnerabilityScanner();
        
        // Scan for vulnerabilities
        VulnerabilityScan scan = scanner.scan(config);
        
        System.out.println("=== Vulnerability Scan ===");
        System.out.println("Total vulnerabilities: " + scan.getVulnerabilityCount());
        System.out.println("Critical: " + scan.getCriticalCount());
        System.out.println("High: " + scan.getHighCount());
        System.out.println("Medium: " + scan.getMediumCount());
        System.out.println("Low: " + scan.getLowCount());
        
        // Get detailed vulnerabilities
        List<Vulnerability> vulnerabilities = scan.getVulnerabilities();
        for (Vulnerability vuln : vulnerabilities) {
            System.out.println("Vulnerability: " + vuln.getType());
            System.out.println("Severity: " + vuln.getSeverity());
            System.out.println("Description: " + vuln.getDescription());
            System.out.println("Location: " + vuln.getLocation());
            System.out.println("Fix: " + vuln.getFix());
        }
    }
}

Common Issues

Address common debugging scenarios.

Variable Resolution Issues

public class VariableResolutionDebugger {
    
    public void debugVariableResolution(String config) {
        VariableResolutionDebugger debugger = new VariableResolutionDebugger();
        
        // Debug variable resolution
        VariableResolutionDebug debug = debugger.debug(config);
        
        System.out.println("=== Variable Resolution Debug ===");
        System.out.println("Variables found: " + debug.getVariablesFound());
        System.out.println("Variables resolved: " + debug.getVariablesResolved());
        System.out.println("Unresolved variables: " + debug.getUnresolvedVariables());
        
        // Get resolution trace
        List<VariableResolutionStep> trace = debug.getResolutionTrace();
        for (VariableResolutionStep step : trace) {
            System.out.println("Step: " + step.getVariable() + " -> " + step.getResolvedValue());
        }
        
        // Get circular dependencies
        List<CircularDependency> circularDeps = debug.getCircularDependencies();
        for (CircularDependency dep : circularDeps) {
            System.out.println("Circular dependency: " + dep.getVariables());
        }
    }
}

Function Execution Issues

public class FunctionExecutionDebugger {
    
    public void debugFunctionExecution(String config) {
        FunctionExecutionDebugger debugger = new FunctionExecutionDebugger();
        
        // Debug function execution
        FunctionExecutionDebug debug = debugger.debug(config);
        
        System.out.println("=== Function Execution Debug ===");
        System.out.println("Functions found: " + debug.getFunctionsFound());
        System.out.println("Functions executed: " + debug.getFunctionsExecuted());
        System.out.println("Failed functions: " + debug.getFailedFunctions());
        
        // Get execution trace
        List<FunctionExecutionStep> trace = debug.getExecutionTrace();
        for (FunctionExecutionStep step : trace) {
            System.out.println("Function: " + step.getFunctionName());
            System.out.println("Arguments: " + step.getArguments());
            System.out.println("Result: " + step.getResult());
            System.out.println("Execution time: " + step.getExecutionTime() + "ms");
        }
        
        // Get errors
        List<FunctionError> errors = debug.getErrors();
        for (FunctionError error : errors) {
            System.out.println("Function error: " + error.getFunctionName() + " - " + error.getMessage());
        }
    }
}

Best Practices

Follow these best practices for effective debugging.

Debug Configuration

public class DebugConfiguration {
    
    public void configureDebugging() {
        // Configure debugging for development
        TuskLangDebugger debugger = new TuskLangDebugger();
        
        // Enable all debug features
        debugger.enableDetailedLogging(true);
        debugger.enablePerformanceTracking(true);
        debugger.enableSecurityMonitoring(true);
        debugger.enableErrorRecovery(true);
        
        // Set log levels
        debugger.setLogLevel(LogLevel.DEBUG);
        debugger.setPerformanceThreshold(1000); // 1 second
        debugger.setMemoryThreshold(100); // 100MB
        
        // Configure error reporting
        debugger.setErrorReportingEnabled(true);
        debugger.setErrorReportingEndpoint("https://errors.example.com");
        
        // Configure monitoring
        debugger.setMonitoringEnabled(true);
        debugger.setMetricsEndpoint("https://metrics.example.com");
    }
}

Production Debugging

public class ProductionDebugger {
    
    public void configureProductionDebugging() {
        // Configure debugging for production
        TuskLangDebugger debugger = new TuskLangDebugger();
        
        // Enable minimal debugging for production
        debugger.enableDetailedLogging(false);
        debugger.enablePerformanceTracking(true);
        debugger.enableSecurityMonitoring(true);
        debugger.enableErrorRecovery(false);
        
        // Set conservative thresholds
        debugger.setPerformanceThreshold(5000); // 5 seconds
        debugger.setMemoryThreshold(500); // 500MB
        
        // Configure error reporting
        debugger.setErrorReportingEnabled(true);
        debugger.setErrorReportingEndpoint("https://errors.example.com");
        
        // Configure monitoring
        debugger.setMonitoringEnabled(true);
        debugger.setMetricsEndpoint("https://metrics.example.com");
    }
}

Troubleshooting

Common troubleshooting scenarios and solutions.

Configuration Not Loading

public class ConfigurationLoadTroubleshooter {
    
    public void troubleshootConfigurationLoad(String configPath) {
        ConfigurationLoadTroubleshooter troubleshooter = new ConfigurationLoadTroubleshooter();
        
        // Check file existence
        if (!troubleshooter.fileExists(configPath)) {
            System.out.println("Configuration file not found: " + configPath);
            return;
        }
        
        // Check file permissions
        if (!troubleshooter.hasReadPermission(configPath)) {
            System.out.println("No read permission for: " + configPath);
            return;
        }
        
        // Check file format
        if (!troubleshooter.isValidFormat(configPath)) {
            System.out.println("Invalid file format: " + configPath);
            return;
        }
        
        // Check file size
        long fileSize = troubleshooter.getFileSize(configPath);
        if (fileSize > 10  1024  1024) { // 10MB
            System.out.println("File too large: " + fileSize + " bytes");
            return;
        }
        
        // Try to load configuration
        try {
            TuskLangConfig config = troubleshooter.loadConfiguration(configPath);
            System.out.println("Configuration loaded successfully");
        } catch (Exception e) {
            System.out.println("Failed to load configuration: " + e.getMessage());
        }
    }
}

Performance Issues

public class PerformanceTroubleshooter {
    
    public void troubleshootPerformance(String config) {
        PerformanceTroubleshooter troubleshooter = new PerformanceTroubleshooter();
        
        // Analyze performance
        PerformanceAnalysis analysis = troubleshooter.analyze(config);
        
        // Check for common issues
        if (analysis.hasLargeConfiguration()) {
            System.out.println("Configuration is too large: " + analysis.getConfigurationSize() + " lines");
            System.out.println("Consider splitting into multiple files");
        }
        
        if (analysis.hasComplexVariables()) {
            System.out.println("Complex variable resolution detected");
            System.out.println("Consider simplifying variable dependencies");
        }
        
        if (analysis.hasExpensiveFunctions()) {
            System.out.println("Expensive functions detected");
            System.out.println("Consider caching function results");
        }
        
        if (analysis.hasExternalDependencies()) {
            System.out.println("External dependencies detected");
            System.out.println("Consider using connection pooling");
        }
        
        // Get optimization suggestions
        List<OptimizationSuggestion> suggestions = analysis.getOptimizationSuggestions();
        for (OptimizationSuggestion suggestion : suggestions) {
            System.out.println("Suggestion: " + suggestion.getDescription());
            System.out.println("Expected improvement: " + suggestion.getExpectedImprovement());
        }
    }
}

This comprehensive debugging guide provides everything needed to effectively debug TuskLang configurations in Java applications, ensuring quick identification and resolution of issues.