1 files changed, 88 insertions, 0 deletions
diff --git a/valetapi/src/main/java/org/onap/fgps/api/interceptor/VersioningInterceptor.java b/valetapi/src/main/java/org/onap/fgps/api/interceptor/VersioningInterceptor.java
new file mode 100644
index 0000000..a3193ce
--- /dev/null
+++ b/valetapi/src/main/java/org/onap/fgps/api/interceptor/VersioningInterceptor.java
@@ -0,0 +1,88 @@
+/* 
+ * ============LICENSE_START========================================== 
+ * ONAP - F-GPS API 
+ * =================================================================== 
+ * Copyright © 2019 ATT Intellectual Property. All rights reserved. 
+ * =================================================================== 
+ * 
+ * Unless otherwise specified, all software contained herein is licensed 
+ * under the Apache License, Version 2.0 (the "License"); 
+ * you may not use this software 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. 
+ * 
+ * Unless otherwise specified, all documentation contained herein is licensed 
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License"); 
+ * you may not use this documentation except in compliance with the License. 
+ * You may obtain a copy of the License at 
+ * 
+ *             https://creativecommons.org/licenses/by/4.0/ 
+ * 
+ * Unless required by applicable law or agreed to in writing, documentation 
+ * 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. 
+ * 
+ * ============LICENSE_END============================================ 
+ * 
+ * 
+ */
+package org.onap.fgps.api.interceptor;
+
+import java.util.Properties;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.onap.fgps.api.logging.EELFLoggerDelegate;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.web.servlet.HandlerInterceptor;
+import org.springframework.web.servlet.ModelAndView;
+
+
+public class VersioningInterceptor implements HandlerInterceptor {
+	
+	private static final EELFLoggerDelegate LOGGER = EELFLoggerDelegate.getLogger(VersioningInterceptor.class);
+	private Properties versionProperties = null;
+	
+	@Override
+	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+		if (versionProperties==null) {
+			versionProperties = new Properties();
+			try {
+				Resource fileResource = new ClassPathResource("version.properties");
+				versionProperties.load(fileResource.getInputStream());
+			} catch (NullPointerException e) {
+				e.printStackTrace();
+				LOGGER.error(EELFLoggerDelegate.applicationLogger," preHandle : Error details : "+ e.getMessage());
+				LOGGER.error(EELFLoggerDelegate.errorLogger," preHandle : Error details : "+ e.getMessage());
+			}
+		}
+		
+		response.addHeader("X-MinorVersion", versionProperties.getProperty("version.minor"));
+		response.addHeader("X-PatchVersion", versionProperties.getProperty("version.patch"));
+		response.addHeader("X-LatestVersion", versionProperties.getProperty("version.full"));
+
+		return true;
+	}
+
+	@Override
+	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
+		// noop
+	}
+
+	@Override
+	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
+		// noop
+	}
+
+}