Fixes #391
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/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.nacos.console.controller;
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import com.alibaba.nacos.config.server.service.PersistService;
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import com.alibaba.nacos.naming.web.ApiCommands;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.bind.annotation.RestController;
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import javax.servlet.http.HttpServletRequest;
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/**
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* @author <a href="mailto:huangxiaoyu1018@gmail.com">hxy1991</a>
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*/
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@RestController("consoleHealth")
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@RequestMapping("/v1/console/health")
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public class HealthController {
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private static final Logger logger = LoggerFactory.getLogger(HealthController.class);
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private final PersistService persistService;
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private final ApiCommands apiCommands;
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@Autowired
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public HealthController(PersistService persistService, ApiCommands apiCommands) {
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this.persistService = persistService;
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this.apiCommands = apiCommands;
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}
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/**
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* Whether the Nacos is in broken states or not, and cannot recover except by being restarted
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*
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* @return HTTP code equal to 200 indicates that Nacos is in right states. HTTP code equal to 500 indicates that
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* Nacos is in broken states.
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*/
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@ResponseBody
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@RequestMapping(value = "liveness", method = RequestMethod.GET)
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public ResponseEntity liveness() {
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return ResponseEntity.ok().body("OK");
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}
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/**
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* Ready to receive the request or not
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*
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* @return HTTP code equal to 200 indicates that Nacos is ready. HTTP code equal to 500 indicates that Nacos is not
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* ready.
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*/
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@ResponseBody
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@RequestMapping(value = "readiness", method = RequestMethod.GET)
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public ResponseEntity readiness(HttpServletRequest request) {
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boolean isConfigReadiness = isConfigReadiness();
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boolean isNamingReadiness = isNamingReadiness(request);
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if (isConfigReadiness && isNamingReadiness) {
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return ResponseEntity.ok().body("OK");
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}
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if (!isConfigReadiness && !isNamingReadiness) {
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return ResponseEntity.status(500).body("Config and Naming are not in readiness");
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}
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if (!isConfigReadiness) {
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return ResponseEntity.status(500).body("Config is not in readiness");
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}
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return ResponseEntity.status(500).body("Naming is not in readiness");
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}
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private boolean isConfigReadiness() {
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// check db
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try {
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persistService.configInfoCount("");
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return true;
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} catch (Exception e) {
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logger.error("Config health check fail.", e);
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}
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return false;
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}
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private boolean isNamingReadiness(HttpServletRequest request) {
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try {
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apiCommands.hello(request);
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return true;
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} catch (Exception e) {
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logger.error("Naming health check fail.", e);
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}
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return false;
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}
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}
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