Add automatic acquisition scheduler runtime

src/main/java/com/litoralregas/backend/BackendApplication.java

@@ -1,12 +1,13 @@
 package com.litoralregas.backend;
 
+import com.litoralregas.backend.acquisition.scheduler.AcquisitionSchedulerProperties;
 import com.litoralregas.backend.modbus.ModbusConnectionProperties;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 @SpringBootApplication
-@EnableConfigurationProperties(ModbusConnectionProperties.class)
+@EnableConfigurationProperties({ModbusConnectionProperties.class, AcquisitionSchedulerProperties.class})
 public class BackendApplication {
 
 	public static void main(String[] args) {

src/main/java/com/litoralregas/backend/acquisition/scheduler/AcquisitionRuntimeStatus.java

@@ -0,0 +1,66 @@
+package com.litoralregas.backend.acquisition.scheduler;
+
+import java.time.Instant;
+
+public class AcquisitionRuntimeStatus {
+
+    private boolean running;
+
+    private Instant lastStartedAt;
+
+    private Instant lastFinishedAt;
+
+    private Integer lastSuccessfulReads;
+
+    private Integer lastFailedReads;
+
+    private String lastError;
+
+    public boolean isRunning() {
+        return running;
+    }
+
+    public void setRunning(boolean running) {
+        this.running = running;
+    }
+
+    public Instant getLastStartedAt() {
+        return lastStartedAt;
+    }
+
+    public void setLastStartedAt(Instant lastStartedAt) {
+        this.lastStartedAt = lastStartedAt;
+    }
+
+    public Instant getLastFinishedAt() {
+        return lastFinishedAt;
+    }
+
+    public void setLastFinishedAt(Instant lastFinishedAt) {
+        this.lastFinishedAt = lastFinishedAt;
+    }
+
+    public Integer getLastSuccessfulReads() {
+        return lastSuccessfulReads;
+    }
+
+    public void setLastSuccessfulReads(Integer lastSuccessfulReads) {
+        this.lastSuccessfulReads = lastSuccessfulReads;
+    }
+
+    public Integer getLastFailedReads() {
+        return lastFailedReads;
+    }
+
+    public void setLastFailedReads(Integer lastFailedReads) {
+        this.lastFailedReads = lastFailedReads;
+    }
+
+    public String getLastError() {
+        return lastError;
+    }
+
+    public void setLastError(String lastError) {
+        this.lastError = lastError;
+    }
+}

src/main/java/com/litoralregas/backend/acquisition/scheduler/AcquisitionSchedulerConfig.java

@@ -0,0 +1,19 @@
+package com.litoralregas.backend.acquisition.scheduler;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.TaskScheduler;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+
+@Configuration
+public class AcquisitionSchedulerConfig {
+
+    @Bean
+    public TaskScheduler acquisitionTaskScheduler() {
+        ThreadPoolTaskScheduler scheduler = new ThreadPoolTaskScheduler();
+        scheduler.setPoolSize(1);
+        scheduler.setThreadNamePrefix("acquisition-scheduler-");
+        scheduler.initialize();
+        return scheduler;
+    }
+}

src/main/java/com/litoralregas/backend/acquisition/scheduler/AcquisitionSchedulerProperties.java

@@ -0,0 +1,26 @@
+package com.litoralregas.backend.acquisition.scheduler;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix = "litoralregas.acquisition.scheduler")
+public class AcquisitionSchedulerProperties {
+
+    private boolean enabled = false;
+    private long fixedDelayMillis = 3000;
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public long getFixedDelayMillis() {
+        return fixedDelayMillis;
+    }
+
+    public void setFixedDelayMillis(long fixedDelayMillis) {
+        this.fixedDelayMillis = fixedDelayMillis;
+    }
+}

src/main/java/com/litoralregas/backend/acquisition/scheduler/AcquisitionSchedulerService.java

@@ -0,0 +1,80 @@
+package com.litoralregas.backend.acquisition.scheduler;
+
+import com.litoralregas.backend.acquisition.polling.AcquisitionPollResult;
+import com.litoralregas.backend.acquisition.block.BlockPollingService;
+import jakarta.annotation.PostConstruct;
+import org.springframework.scheduling.TaskScheduler;
+import org.springframework.stereotype.Service;
+
+import java.time.Instant;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+@Service
+public class AcquisitionSchedulerService {
+
+    private final BlockPollingService blockPollingService;
+    private final AcquisitionSchedulerProperties properties;
+    private final TaskScheduler taskScheduler;
+
+    private final AcquisitionRuntimeStatus runtimeStatus = new AcquisitionRuntimeStatus();
+
+    private final AtomicBoolean polling = new AtomicBoolean(false);
+
+    public AcquisitionSchedulerService(
+            BlockPollingService blockPollingService,
+            AcquisitionSchedulerProperties properties,
+            TaskScheduler taskScheduler
+    ) {
+        this.blockPollingService = blockPollingService;
+        this.properties = properties;
+        this.taskScheduler = taskScheduler;
+    }
+
+    @PostConstruct
+    public void startScheduler() {
+        if (!properties.isEnabled()) {
+            System.out.println("Acquisition scheduler disabled.");
+            return;
+        }
+
+        System.out.println("Starting acquisition scheduler.");
+
+        taskScheduler.scheduleWithFixedDelay(
+                this::safePoll,
+                properties.getFixedDelayMillis()
+        );
+    }
+
+    public AcquisitionRuntimeStatus getRuntimeStatus() {
+        return runtimeStatus;
+    }
+
+    private void safePoll() {
+        if (!polling.compareAndSet(false, true)) {
+            System.out.println("Skipping acquisition cycle because previous cycle is still running.");
+            return;
+        }
+
+        runtimeStatus.setRunning(true);
+        runtimeStatus.setLastStartedAt(Instant.now());
+        runtimeStatus.setLastError(null);
+
+        try {
+            AcquisitionPollResult result = blockPollingService.pollOnceByBlocks();
+
+            runtimeStatus.setLastSuccessfulReads(result.successfulReads());
+            runtimeStatus.setLastFailedReads(result.failedReads());
+
+        } catch (Exception exception) {
+            runtimeStatus.setLastError(exception.getMessage());
+
+            exception.printStackTrace();
+
+        } finally {
+            runtimeStatus.setRunning(false);
+            runtimeStatus.setLastFinishedAt(Instant.now());
+
+            polling.set(false);
+        }
+    }
+}

src/main/resources/application.yaml

@@ -21,4 +21,8 @@ litoralregas:
     port: 533
     timeout-millis: 500
     max-attempts: 3
-    retry-delay-millis: 1000
+    retry-delay-millis: 1000
+  acquisition:
+    scheduler:
+      enabled: true
+      fixed-delay-millis: 3000