feat(health,version): add health and version endpoints

pom.xml

@@ -245,6 +245,12 @@
 			<artifactId>h2</artifactId>
 			<scope>runtime</scope>
 		</dependency>
+		<!-- Elasticsearch client for health check -->
+		<dependency>
+			<groupId>org.elasticsearch.client</groupId>
+			<artifactId>elasticsearch-rest-client</artifactId>
+			<version>8.10.0</version>
+		</dependency>
 		<!--END NEW DEPENDENCIES ADDED-->
 	</dependencies>
 	<profiles>
@@ -286,31 +292,29 @@
 				<version>3.3.0</version>
 			</plugin>
 			<plugin>
-				<groupId>pl.project13.maven</groupId>
-				<artifactId>git-commit-id-plugin</artifactId>
-				<version>4.9.10</version>
+				<groupId>io.github.git-commit-id</groupId>
+				<artifactId>git-commit-id-maven-plugin</artifactId>
+				<version>9.0.2</version>
 				<executions>
 					<execution>
 						<id>get-the-git-infos</id>
 						<goals>
 							<goal>revision</goal>
 						</goals>
+						<phase>initialize</phase>
 					</execution>
 				</executions>
 				<configuration>
-					<dotGitDirectory>${project.basedir}/.git</dotGitDirectory>
-					<prefix>git</prefix>
-					<verbose>false</verbose>
 					<generateGitPropertiesFile>true</generateGitPropertiesFile>
-					<generateGitPropertiesFilename>
-						${project.build.outputDirectory}/git.properties
-					</generateGitPropertiesFilename>
-					<format>json</format>
-					<gitDescribe>
-						<skip>false</skip>
-						<always>false</always>
-						<dirty>-dirty</dirty>
-					</gitDescribe>
+					<generateGitPropertiesFilename>${project.build.outputDirectory}/git.properties</generateGitPropertiesFilename>
+					<includeOnlyProperties>
+						<property>^git.branch$</property>
+						<property>^git.commit.id.abbrev$</property>
+						<property>^git.build.version$</property>
+						<property>^git.build.time$</property>
+					</includeOnlyProperties>
+					<failOnNoGitDirectory>false</failOnNoGitDirectory>
+					<failOnUnableToExtractRepoInfo>false</failOnUnableToExtractRepoInfo>
 				</configuration>
 			</plugin>
 

src/main/java/com/iemr/common/identity/controller/health/HealthController.java

@@ -0,0 +1,90 @@
+/*
+* 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.identity.controller.health;
+
+import java.time.Instant;
+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.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import jakarta.servlet.http.Cookie;
+import jakarta.servlet.http.HttpServletRequest;
+import com.iemr.common.identity.service.health.HealthService;
+import com.iemr.common.identity.utils.JwtAuthenticationUtil;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+
+@RestController
+@RequestMapping("/health")
+@Tag(name = "Health Check", description = "APIs for checking infrastructure health status")
+public class HealthController {
+
+    private static final Logger logger = LoggerFactory.getLogger(HealthController.class);
+
+    private final HealthService healthService;
+    private final JwtAuthenticationUtil jwtAuthenticationUtil;
+
+    public HealthController(HealthService healthService, JwtAuthenticationUtil jwtAuthenticationUtil) {
+        this.healthService = healthService;
+        this.jwtAuthenticationUtil = jwtAuthenticationUtil;
+    }
+    @GetMapping
+    @Operation(summary = "Check infrastructure health", 
+               description = "Returns the health status of MySQL, Redis, Elasticsearch, and other configured services")
+    @ApiResponses({
+        @ApiResponse(responseCode = "200", description = "Services are UP or DEGRADED (operational with warnings)"),
+        @ApiResponse(responseCode = "503", description = "One or more critical services are DOWN")
+    })
+    public ResponseEntity<Map<String, Object>> checkHealth() {
+        logger.info("Health check endpoint called");
+
+        try {
+            Map<String, Object> healthStatus = healthService.checkHealth();
+            String overallStatus = (String) healthStatus.get("status");
+
+            // Return 503 only if DOWN; 200 for both UP and DEGRADED (DEGRADED = operational with warnings)
+            HttpStatus httpStatus = "DOWN".equals(overallStatus) ? HttpStatus.SERVICE_UNAVAILABLE : HttpStatus.OK;
+
+            logger.debug("Health check completed with status: {}", overallStatus);
+            return new ResponseEntity<>(healthStatus, httpStatus);
+
+        } catch (Exception e) {
+            logger.error("Unexpected error during health check", e);
+
+            // Return sanitized error response
+            Map<String, Object> errorResponse = Map.of(
+                "status", "DOWN",
+                "timestamp", Instant.now().toString()
+            );
+
+            return new ResponseEntity<>(errorResponse, HttpStatus.SERVICE_UNAVAILABLE);
+        }
+    }
+}

src/main/java/com/iemr/common/identity/controller/version/VersionController.java

@@ -21,54 +21,59 @@
 */
 package com.iemr.common.identity.controller.version;
 
-import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Properties;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import com.iemr.common.identity.utils.response.OutputResponse;
-
 import io.swagger.v3.oas.annotations.Operation;
 
 @RestController
 public class VersionController {
 
-	private Logger logger = LoggerFactory.getLogger(this.getClass().getSimpleName());
+	private final Logger logger = LoggerFactory.getLogger(this.getClass().getSimpleName());
 
+	private static final String UNKNOWN_VALUE = "unknown";
+
 	@Operation(summary = "Get version information")
-	@GetMapping(value = "/version",consumes = "application/json", produces = "application/json")
-	public String versionInformation() {
-		OutputResponse output = new OutputResponse();
+	@GetMapping(value = "/version", produces = MediaType.APPLICATION_JSON_VALUE)
+	public ResponseEntity<Map<String, String>> versionInformation() {
+		Map<String, String> response = new LinkedHashMap<>();
 		try {
 			logger.info("version Controller Start");
-			output.setResponse(readGitProperties());
-	    } catch (Exception e) {
-	    	output.setError(e);
-	    }
-
+			Properties gitProperties = loadGitProperties();
+			response.put("buildTimestamp", gitProperties.getProperty("git.build.time", UNKNOWN_VALUE));
+			response.put("version", gitProperties.getProperty("git.build.version", UNKNOWN_VALUE));
+			response.put("branch", gitProperties.getProperty("git.branch", UNKNOWN_VALUE));
+			response.put("commitHash", gitProperties.getProperty("git.commit.id.abbrev", UNKNOWN_VALUE));
+		} catch (Exception e) {
+			logger.error("Failed to load version information", e);
+			response.put("buildTimestamp", UNKNOWN_VALUE);
+			response.put("version", UNKNOWN_VALUE);
+			response.put("branch", UNKNOWN_VALUE);
+			response.put("commitHash", UNKNOWN_VALUE);
+		}
 		logger.info("version Controller End");
-		return output.toString();
+		return ResponseEntity.ok(response);
 	}
-	private String readGitProperties() throws Exception {
-	    ClassLoader classLoader = getClass().getClassLoader();
-	    InputStream inputStream = classLoader.getResourceAsStream("git.properties");
-
-	        return readFromInputStream(inputStream);
-	}
-	private String readFromInputStream(InputStream inputStream)
-	throws IOException {
-	    StringBuilder resultStringBuilder = new StringBuilder();
-	    try (BufferedReader br = new BufferedReader(new InputStreamReader(inputStream))) {
-	        String line;
-	        while ((line = br.readLine()) != null) {
-	            resultStringBuilder.append(line).append("\n");
-	        }
-	    }
-	    return resultStringBuilder.toString();
+
+	private Properties loadGitProperties() throws IOException {
+		Properties properties = new Properties();
+		try (InputStream input = getClass().getClassLoader()
+				.getResourceAsStream("git.properties")) {
+			if (input != null) {
+				properties.load(input);
+			}
+		}
+		return properties;
 	}
 }