HealthController.java

/*
 * AMRIT – Accessible Medical Records via Integrated Technology
 * Integrated EHR (Electronic Health Records) Solution
 *
 * Copyright (C) "Piramal Swasthya Management and Research Institute"
 *
 * This file is part of AMRIT.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see https://www.gnu.org/licenses/.
 */

package com.iemr.common.controller.health;

import com.iemr.common.service.health.HealthService;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * Health check controller for Common-API.
 * Verifies application liveness and dependency health (DB, Redis).
 *
 * @author vaishnavbhosale
 */
@RestController
public class HealthController {

    private static final Logger logger = LoggerFactory.getLogger(HealthController.class);

    private final HealthService healthService;

    public HealthController(HealthService healthService) {
        this.healthService = healthService;
    }

    @GetMapping("/health")
    public ResponseEntity<Map<String, Object>> health() {
        logger.info("Health check endpoint called");


        Map<String, Object> healthStatus = healthService.checkHealth();

        // Standard HTTP Status logic
        String status = (String) healthStatus.get("status");
        HttpStatus httpStatus = "UP".equals(status) ? HttpStatus.OK : HttpStatus.SERVICE_UNAVAILABLE;

        logger.info("Health check completed with status: {}", status);

        return ResponseEntity.status(httpStatus).body(healthStatus);
    }
}