polish #761 update pkg name & maven coordinate for Greenwich

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/endpoint/NacosConfigEndpoint.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.alibaba.cloud.nacos.endpoint;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
+import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
+
+import com.alibaba.cloud.nacos.NacosConfigProperties;
+import com.alibaba.cloud.nacos.NacosPropertySourceRepository;
+import com.alibaba.cloud.nacos.client.NacosPropertySource;
+import com.alibaba.cloud.nacos.refresh.NacosRefreshHistory;
+
+/**
+ * Endpoint for Nacos, contains config data and refresh history
+ * @author xiaojing
+ */
+@Endpoint(id = "nacos-config")
+public class NacosConfigEndpoint {
+
+	private final NacosConfigProperties properties;
+
+	private final NacosRefreshHistory refreshHistory;
+
+	private ThreadLocal<DateFormat> dateFormat = new ThreadLocal<DateFormat>() {
+		@Override
+		protected DateFormat initialValue() {
+			return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+		}
+	};
+
+	public NacosConfigEndpoint(NacosConfigProperties properties,
+			NacosRefreshHistory refreshHistory) {
+		this.properties = properties;
+		this.refreshHistory = refreshHistory;
+	}
+
+	@ReadOperation
+	public Map<String, Object> invoke() {
+		Map<String, Object> result = new HashMap<>(16);
+		result.put("NacosConfigProperties", properties);
+
+		List<NacosPropertySource> all = NacosPropertySourceRepository.getAll();
+
+		List<Map<String, Object>> sources = new ArrayList<>();
+		for (NacosPropertySource ps : all) {
+			Map<String, Object> source = new HashMap<>(16);
+			source.put("dataId", ps.getDataId());
+			source.put("lastSynced", dateFormat.get().format(ps.getTimestamp()));
+			sources.add(source);
+		}
+		result.put("Sources", sources);
+		result.put("RefreshHistory", refreshHistory.getRecords());
+
+		return result;
+	}
+}

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/endpoint/NacosConfigEndpointAutoConfiguration.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.alibaba.cloud.nacos.endpoint;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnEnabledEndpoint;
+import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.context.annotation.Bean;
+
+import com.alibaba.cloud.nacos.NacosConfigProperties;
+import com.alibaba.cloud.nacos.refresh.NacosRefreshHistory;
+
+/**
+ * @author xiaojing
+ */
+@ConditionalOnWebApplication
+@ConditionalOnClass(value = Endpoint.class)
+@ConditionalOnProperty(name = "spring.cloud.nacos.config.enabled", matchIfMissing = true)
+public class NacosConfigEndpointAutoConfiguration {
+
+	@Autowired
+	private NacosConfigProperties nacosConfigProperties;
+
+	@Autowired
+	private NacosRefreshHistory nacosRefreshHistory;
+
+	@ConditionalOnMissingBean
+	@ConditionalOnEnabledEndpoint
+	@Bean
+	public NacosConfigEndpoint nacosConfigEndpoint() {
+		return new NacosConfigEndpoint(nacosConfigProperties, nacosRefreshHistory);
+	}
+
+	@Bean
+	public NacosConfigHealthIndicator nacosConfigHealthIndicator() {
+		return new NacosConfigHealthIndicator(nacosConfigProperties,
+				nacosConfigProperties.configServiceInstance());
+	}
+}

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/endpoint/NacosConfigHealthIndicator.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.alibaba.cloud.nacos.endpoint;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.boot.actuate.health.AbstractHealthIndicator;
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.util.StringUtils;
+
+import com.alibaba.cloud.nacos.NacosConfigProperties;
+import com.alibaba.cloud.nacos.NacosPropertySourceRepository;
+import com.alibaba.cloud.nacos.client.NacosPropertySource;
+import com.alibaba.nacos.api.config.ConfigService;
+
+/**
+ * @author xiaojing
+ */
+public class NacosConfigHealthIndicator extends AbstractHealthIndicator {
+
+	private final NacosConfigProperties nacosConfigProperties;
+
+	private final List<String> dataIds;
+
+	private final ConfigService configService;
+
+	public NacosConfigHealthIndicator(NacosConfigProperties nacosConfigProperties,
+			ConfigService configService) {
+		this.nacosConfigProperties = nacosConfigProperties;
+		this.configService = configService;
+
+		this.dataIds = new ArrayList<>();
+		for (NacosPropertySource nacosPropertySource : NacosPropertySourceRepository
+				.getAll()) {
+			this.dataIds.add(nacosPropertySource.getDataId());
+		}
+	}
+
+	@Override
+	protected void doHealthCheck(Health.Builder builder) throws Exception {
+		for (String dataId : dataIds) {
+			try {
+				String config = configService.getConfig(dataId,
+						nacosConfigProperties.getGroup(),
+						nacosConfigProperties.getTimeout());
+				if (StringUtils.isEmpty(config)) {
+					builder.down().withDetail(String.format("dataId: '%s', group: '%s'",
+							dataId, nacosConfigProperties.getGroup()), "config is empty");
+				}
+			}
+			catch (Exception e) {
+				builder.down().withDetail(String.format("dataId: '%s', group: '%s'",
+						dataId, nacosConfigProperties.getGroup()), e.getMessage());
+			}
+		}
+		builder.up().withDetail("dataIds", dataIds);
+	}
+}