feat: the polaris config relation non-daemon thread should stop when application fails to start. (#1102)

Co-authored-by: Haotian Zhang <928016560@qq.com>

CHANGELOG.md

@@ -1,3 +1,4 @@
 # Change Log
 ---
 
+- [fix:the polaris config relation non-daemon thread should stop when application fails to start.](https://github.com/Tencent/spring-cloud-tencent/pull/1102)

spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/PolarisConfigAutoConfiguration.java

@@ -68,7 +68,6 @@ public class PolarisConfigAutoConfiguration {
 		return new PolarisConfigLoggerApplicationListener();
 	}
 
-
 	@Bean
 	@Primary
 	@ConditionalOnReflectRefreshType

spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/config/PolarisContextAutoConfiguration.java

@@ -25,6 +25,7 @@ import com.tencent.cloud.polaris.context.ModifyAddress;
 import com.tencent.cloud.polaris.context.PolarisConfigModifier;
 import com.tencent.cloud.polaris.context.PolarisSDKContextManager;
 import com.tencent.cloud.polaris.context.ServiceRuleManager;
+import com.tencent.cloud.polaris.context.listener.PolarisContextApplicationEventListener;
 import com.tencent.polaris.api.exception.PolarisException;
 import com.tencent.polaris.client.api.SDKContext;
 
@@ -58,4 +59,9 @@ public class PolarisContextAutoConfiguration {
 	public ServiceRuleManager serviceRuleManager(PolarisSDKContextManager polarisSDKContextManager) {
 		return new ServiceRuleManager(polarisSDKContextManager.getSDKContext(), polarisSDKContextManager.getConsumerAPI());
 	}
+
+	@Bean
+	public PolarisContextApplicationEventListener polarisContextApplicationEventListener(PolarisSDKContextManager polarisSDKContextManager) {
+		return new PolarisContextApplicationEventListener(polarisSDKContextManager);
+	}
 }

spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/listener/PolarisContextApplicationEventListener.java

@@ -0,0 +1,57 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ *
+ */
+
+package com.tencent.cloud.polaris.context.listener;
+
+import com.tencent.cloud.polaris.context.PolarisSDKContextManager;
+import com.tencent.polaris.configuration.client.internal.RemoteConfigFileRepo;
+
+import org.springframework.boot.context.event.ApplicationFailedEvent;
+import org.springframework.boot.context.event.ApplicationPreparedEvent;
+import org.springframework.context.ApplicationEvent;
+import org.springframework.context.ApplicationListener;
+import org.springframework.lang.NonNull;
+
+/*
+ * Polaris config non-daemon thread stop listener
+ *
+ * @author shuiqingliu
+ * @since 2023/8/29
+ **/
+public class PolarisContextApplicationEventListener implements ApplicationListener<ApplicationEvent> {
+
+	private final PolarisSDKContextManager polarisSDKContextManager;
+
+	public PolarisContextApplicationEventListener(PolarisSDKContextManager polarisSDKContextManager) {
+		this.polarisSDKContextManager = polarisSDKContextManager;
+	}
+
+	@Override
+	public void onApplicationEvent(@NonNull ApplicationEvent event) {
+		if (event instanceof ApplicationPreparedEvent) {
+			RemoteConfigFileRepo.registerRepoDestroyHook(polarisSDKContextManager.getSDKContext());
+		}
+
+		if (event instanceof ApplicationFailedEvent) {
+			RemoteConfigFileRepo.registerRepoDestroyHook(polarisSDKContextManager.getSDKContext());
+			//implicit invoke 'destroy' when the spring application fails to start, in order to stop non-daemon threads.
+			polarisSDKContextManager.getSDKContext().destroy();
+		}
+	}
+
+}