Adapt to delayed loading (#886)

* feat:Adapt to delayed loading

* feat:Field Rename

hippo4j-common/src/main/java/cn/hippo4j/common/toolkit/ContentUtil.java

@@ -21,6 +21,8 @@ import cn.hippo4j.common.constant.Constants;
 import cn.hippo4j.common.model.ThreadPoolParameter;
 import cn.hippo4j.common.model.ThreadPoolParameterInfo;
 
+import java.util.Objects;
+
 /**
  * Content util.
  */

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/config/DynamicThreadPoolAutoConfiguration.java

@@ -106,12 +106,11 @@ public class DynamicThreadPoolAutoConfiguration {
     @Bean
     @SuppressWarnings("all")
     public DynamicThreadPoolService dynamicThreadPoolConfigService(HttpAgent httpAgent,
-                                                                   ClientWorker clientWorker,
                                                                    ServerHealthCheck serverHealthCheck,
                                                                    ServerNotifyConfigBuilder notifyConfigBuilder,
                                                                    Hippo4jBaseSendMessageService hippo4jBaseSendMessageService,
                                                                    DynamicThreadPoolSubscribeConfig dynamicThreadPoolSubscribeConfig) {
-        return new DynamicThreadPoolConfigService(httpAgent, clientWorker, properties, notifyConfigBuilder, hippo4jBaseSendMessageService, dynamicThreadPoolSubscribeConfig);
+        return new DynamicThreadPoolConfigService(httpAgent, properties, notifyConfigBuilder, hippo4jBaseSendMessageService, dynamicThreadPoolSubscribeConfig);
     }
 
     @Bean

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/core/ClientWorker.java

@@ -18,7 +18,6 @@
 package cn.hippo4j.springboot.starter.core;
 
 import cn.hippo4j.common.model.ThreadPoolParameterInfo;
-import cn.hippo4j.common.toolkit.CollectionUtil;
 import cn.hippo4j.common.toolkit.ContentUtil;
 import cn.hippo4j.common.toolkit.GroupKey;
 import cn.hippo4j.common.toolkit.IdUtil;
@@ -72,6 +71,8 @@ public class ClientWorker {
 
     private final CountDownLatch awaitApplicationComplete = new CountDownLatch(1);
 
+    private final CountDownLatch cacheCondition = new CountDownLatch(1);
+
     private final ConcurrentHashMap<String, CacheData> cacheMap = new ConcurrentHashMap(16);
 
     @SuppressWarnings("all")
@@ -92,9 +93,7 @@ public class ClientWorker {
         this.executor.schedule(() -> {
             try {
                 awaitApplicationComplete.await();
-                if (CollectionUtil.isNotEmpty(cacheMap)) {
+                executorService.execute(new LongPollingRunnable(cacheMap.isEmpty(), cacheCondition));
-                    executorService.execute(new LongPollingRunnable());
-                }
             } catch (Throwable ex) {
                 log.error("Sub check rotate check error.", ex);
             }
@@ -103,9 +102,22 @@ public class ClientWorker {
 
     class LongPollingRunnable implements Runnable {
 
+        private boolean cacheMapInitEmptyFlag;
+
+        private final CountDownLatch cacheCondition;
+
+        public LongPollingRunnable(boolean cacheMapInitEmptyFlag, CountDownLatch cacheCondition) {
+            this.cacheMapInitEmptyFlag = cacheMapInitEmptyFlag;
+            this.cacheCondition = cacheCondition;
+        }
+
         @Override
         @SneakyThrows
         public void run() {
+            if (cacheMapInitEmptyFlag) {
+                cacheCondition.await();
+                cacheMapInitEmptyFlag = false;
+            }
             serverHealthCheck.isHealthStatus();
             List<CacheData> cacheDataList = new ArrayList();
             List<String> inInitializingCacheList = new ArrayList();
@@ -227,6 +239,10 @@ public class ClientWorker {
         for (Listener listener : listeners) {
             cacheData.addListener(listener);
         }
+        // Lazy loading
+        if (awaitApplicationComplete.getCount() == 0L) {
+            cacheCondition.countDown();
+        }
     }
 
     public CacheData addCacheDataIfAbsent(String namespace, String itemId, String threadPoolId) {

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/event/ApplicationContentPostProcessor.java

@@ -17,29 +17,33 @@
 
 package cn.hippo4j.springboot.starter.event;
 
-import org.springframework.boot.context.event.ApplicationReadyEvent;
+import cn.hippo4j.springboot.starter.core.ClientWorker;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationListener;
+import org.springframework.context.event.ContextRefreshedEvent;
 
 import javax.annotation.Resource;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
  * Application content post processor.
  */
-public class ApplicationContentPostProcessor implements ApplicationListener<ApplicationReadyEvent> {
+public class ApplicationContentPostProcessor implements ApplicationListener<ContextRefreshedEvent> {
 
     @Resource
     private ApplicationContext applicationContext;
 
-    private boolean executeOnlyOnce = true;
+    @Resource
+    private ClientWorker clientWorker;
+
+    private final AtomicBoolean executeOnlyOnce = new AtomicBoolean(false);
 
     @Override
-    public void onApplicationEvent(ApplicationReadyEvent event) {
+    public void onApplicationEvent(ContextRefreshedEvent event) {
-        synchronized (ApplicationContentPostProcessor.class) {
+        if (!executeOnlyOnce.compareAndSet(false, true)) {
-            if (executeOnlyOnce) {
+            return;
-                applicationContext.publishEvent(new ApplicationCompleteEvent(this));
-                executeOnlyOnce = false;
-            }
         }
+        applicationContext.publishEvent(new ApplicationRefreshedEvent(this));
+        clientWorker.notifyApplicationComplete();
     }
 }

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/event/ApplicationRefreshedEvent.java

@@ -22,7 +22,7 @@ import org.springframework.context.ApplicationEvent;
 /**
  * Execute after the spring application context is successfully started.
  */
-public class ApplicationCompleteEvent extends ApplicationEvent {
+public class ApplicationRefreshedEvent extends ApplicationEvent {
 
     /**
      * Create a new {@code ApplicationEvent}.
@@ -30,7 +30,7 @@ public class ApplicationCompleteEvent extends ApplicationEvent {
      * @param source the object on which the event initially occurred or with
      *               which the event is associated (never {@code null})
      */
-    public ApplicationCompleteEvent(Object source) {
+    public ApplicationRefreshedEvent(Object source) {
         super(source);
     }
 }

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/remote/AbstractHealthCheck.java

@@ -18,7 +18,7 @@
 package cn.hippo4j.springboot.starter.remote;
 
 import cn.hippo4j.common.toolkit.ThreadUtil;
-import cn.hippo4j.springboot.starter.event.ApplicationCompleteEvent;
+import cn.hippo4j.springboot.starter.event.ApplicationRefreshedEvent;
 import cn.hippo4j.springboot.starter.core.ShutdownExecuteException;
 import cn.hippo4j.common.design.builder.ThreadFactoryBuilder;
 import lombok.SneakyThrows;
@@ -38,7 +38,7 @@ import static cn.hippo4j.common.constant.Constants.HEALTH_CHECK_INTERVAL;
  * Abstract health check.
  */
 @Slf4j
-public abstract class AbstractHealthCheck implements ServerHealthCheck, InitializingBean, ApplicationListener<ApplicationCompleteEvent> {
+public abstract class AbstractHealthCheck implements ServerHealthCheck, InitializingBean, ApplicationListener<ApplicationRefreshedEvent> {
 
     /**
      * Health status
@@ -157,11 +157,11 @@ public abstract class AbstractHealthCheck implements ServerHealthCheck, Initiali
             clientShutdownHook = true;
             signalAllBizThread();
         }));
-        healthCheckExecutor.scheduleWithFixedDelay(() -> healthCheck(), 0, HEALTH_CHECK_INTERVAL, TimeUnit.SECONDS);
+        healthCheckExecutor.scheduleWithFixedDelay(this::healthCheck, 0, HEALTH_CHECK_INTERVAL, TimeUnit.SECONDS);
     }
 
     @Override
-    public void onApplicationEvent(ApplicationCompleteEvent event) {
+    public void onApplicationEvent(ApplicationRefreshedEvent event) {
         contextInitComplete = true;
     }
 }

hippo4j-spring-boot/hippo4j-spring-boot-starter/src/main/java/cn/hippo4j/springboot/starter/support/DynamicThreadPoolConfigService.java

@@ -36,7 +36,7 @@ import cn.hippo4j.message.service.ThreadPoolNotifyAlarm;
 import cn.hippo4j.springboot.starter.config.BootstrapProperties;
 import cn.hippo4j.springboot.starter.core.ClientWorker;
 import cn.hippo4j.springboot.starter.core.DynamicThreadPoolSubscribeConfig;
-import cn.hippo4j.springboot.starter.event.ApplicationCompleteEvent;
+import cn.hippo4j.springboot.starter.event.ApplicationRefreshedEvent;
 import cn.hippo4j.springboot.starter.notify.ServerNotifyConfigBuilder;
 import cn.hippo4j.springboot.starter.remote.HttpAgent;
 import lombok.RequiredArgsConstructor;
@@ -55,12 +55,10 @@ import static cn.hippo4j.common.constant.Constants.REGISTER_DYNAMIC_THREAD_POOL_
  */
 @Slf4j
 @RequiredArgsConstructor
-public class DynamicThreadPoolConfigService extends AbstractDynamicThreadPoolService implements ApplicationListener<ApplicationCompleteEvent> {
+public class DynamicThreadPoolConfigService extends AbstractDynamicThreadPoolService {
 
     private final HttpAgent httpAgent;
 
-    private final ClientWorker clientWorker;
-
     private final BootstrapProperties properties;
 
     private final ServerNotifyConfigBuilder notifyConfigBuilder;
@@ -77,11 +75,6 @@ public class DynamicThreadPoolConfigService extends AbstractDynamicThreadPoolSer
         return dynamicThreadPoolExecutor;
     }
 
-    @Override
-    public void onApplicationEvent(ApplicationCompleteEvent event) {
-        clientWorker.notifyApplicationComplete();
-    }
-
     private ThreadPoolExecutor registerExecutor(DynamicThreadPoolRegisterWrapper registerWrapper) {
         DynamicThreadPoolRegisterParameter registerParameter = registerWrapper.getDynamicThreadPoolRegisterParameter();
         checkThreadPoolParameter(registerParameter);