diff --git a/src/main/java/org/springframework/samples/petclinic/system/MonitorService.java b/src/main/java/org/springframework/samples/petclinic/system/MonitorService.java new file mode 100644 index 00000000000..4e17342b579 --- /dev/null +++ b/src/main/java/org/springframework/samples/petclinic/system/MonitorService.java @@ -0,0 +1,95 @@ +package org.springframework.samples.petclinic.system; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.stereotype.Service; + +import java.util.concurrent.atomic.AtomicBoolean; + +/** + * Monitor service for system health checking + */ +@Service +public class MonitorService { + private static final Logger logger = LoggerFactory.getLogger(MonitorService.class); + + private final AtomicBoolean isRunning = new AtomicBoolean(false); + private final AtomicBoolean isHealthy = new AtomicBoolean(true); + + /** + * Start the monitoring service + * @return true if service started successfully, false if already running + */ + public boolean start() { + if (isRunning.compareAndSet(false, true)) { + logger.info("Monitor service started successfully"); + return true; + } + logger.warn("Monitor service already running"); + return false; + } + + /** + * Stop the monitoring service + * @return true if service stopped successfully, false if already stopped + */ + public boolean stop() { + if (isRunning.compareAndSet(true, false)) { + logger.info("Monitor service stopped successfully"); + return true; + } + logger.warn("Monitor service already stopped"); + return false; + } + + /** + * Check system health + * @return true if system is healthy + */ + public boolean monitor() { + try { + if (!isRunning.get()) { + logger.warn("Cannot monitor: service not running"); + return false; + } + + // Perform actual health check logic here + boolean currentHealth = performHealthCheck(); + isHealthy.set(currentHealth); + + if (currentHealth) { + logger.info("System health check passed"); + } else { + logger.warn("System health check failed"); + } + + return currentHealth; + } catch (Exception e) { + logger.error("Error during health monitoring", e); + isHealthy.set(false); + return false; + } + } + + /** + * Get current system health status + * @return true if system is healthy + */ + public boolean isHealthy() { + return isHealthy.get(); + } + + /** + * Check if service is currently running + * @return true if service is running + */ + public boolean isRunning() { + return isRunning.get(); + } + + private boolean performHealthCheck() { + // Implement actual health check logic here + // For now, return true to indicate healthy state + return true; + } +} \ No newline at end of file