ms/controllerblueprints/application/src/main/java/org/onap/ccsdk/apps/controllerblueprints/filters/ApplicationLoggingFilter.java

   1 /*\r
   2  *  Copyright © 2017-2018 AT&T Intellectual Property.\r
   3  *  Modifications Copyright © 2018 IBM.\r
   4  *\r
   5  *  Licensed under the Apache License, Version 2.0 (the "License");\r
   6  *  you may not use this file except in compliance with the License.\r
   7  *  You may obtain a copy of the License at\r
   8  *\r
   9  *      http://www.apache.org/licenses/LICENSE-2.0\r
  10  *\r
  11  *  Unless required by applicable law or agreed to in writing, software\r
  12  *  distributed under the License is distributed on an "AS IS" BASIS,\r
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  14  *  See the License for the specific language governing permissions and\r
  15  *  limitations under the License.\r
  16  */\r
  17 \r
  18 package org.onap.ccsdk.apps.controllerblueprints.filters;\r
  19 \r
  20 import com.google.common.base.Preconditions;\r
  21 import org.apache.commons.lang3.StringUtils;\r
  22 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants;\r
  23 import org.slf4j.Logger;\r
  24 import org.slf4j.LoggerFactory;\r
  25 import org.slf4j.MDC;\r
  26 import org.springframework.beans.factory.annotation.Value;\r
  27 import org.springframework.context.annotation.Configuration;\r
  28 import org.springframework.http.HttpHeaders;\r
  29 import org.springframework.http.server.reactive.ServerHttpRequest;\r
  30 import org.springframework.http.server.reactive.ServerHttpResponse;\r
  31 import org.springframework.web.server.ServerWebExchange;\r
  32 import org.springframework.web.server.WebFilter;\r
  33 import org.springframework.web.server.WebFilterChain;\r
  34 import reactor.core.publisher.Mono;\r
  35 \r
  36 import java.time.ZoneOffset;\r
  37 import java.time.ZonedDateTime;\r
  38 import java.time.format.DateTimeFormatter;\r
  39 import java.util.UUID;\r
  40 \r
  41 /**\r
  42  * ApplicationLoggingFilter\r
  43  *\r
  44  * @author Brinda Santh 8/14/2018\r
  45  */\r
  46 @Configuration\r
  47 @SuppressWarnings("unused")\r
  48 public class ApplicationLoggingFilter implements WebFilter {\r
  49     private static Logger log = LoggerFactory.getLogger(ApplicationLoggingFilter.class);\r
  50 \r
  51     @SuppressWarnings("unused")\r
  52     @Value("${appVersion}")\r
  53     private String appVersion;\r
  54 \r
  55     @Override\r
  56     public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {\r
  57         try {\r
  58 \r
  59             ServerHttpRequest request = serverWebExchange.getRequest();\r
  60             ServerHttpResponse response = serverWebExchange.getResponse();\r
  61 \r
  62             String[] tokens = StringUtils.split(appVersion, '.');\r
  63             Preconditions.checkNotNull(tokens, "failed to split application versions");\r
  64             Preconditions.checkArgument(tokens.length == 3, "failed to tokenize application versions");\r
  65             HttpHeaders header = response.getHeaders();\r
  66 \r
  67             String requestID = defaultToUUID(request.getHeaders().getFirst("X-ONAP-RequestID"));\r
  68             String invocationID = defaultToUUID(request.getHeaders().getFirst("X-ONAP-InvocationID"));\r
  69             String partnerName = defaultToEmpty(request.getHeaders().getFirst("X-ONAP-PartnerName"));\r
  70             MDC.put("InvokeTimestamp", ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT));\r
  71             MDC.put("RequestID", requestID);\r
  72             MDC.put("InvocationID", invocationID);\r
  73             MDC.put("PartnerName", partnerName);\r
  74             MDC.put("ClientIPAddress", defaultToEmpty(request.getRemoteAddress().getAddress()));\r
  75             MDC.put("ServerFQDN", defaultToEmpty(request.getRemoteAddress().getHostString()));\r
  76 \r
  77             header.add(BluePrintConstants.RESPONSE_HEADER_TRANSACTION_ID, requestID);\r
  78             header.add(BluePrintConstants.RESPONSE_HEADER_MINOR_VERSION, tokens[1]);\r
  79             header.add(BluePrintConstants.RESPONSE_HEADER_PATCH_VERSION, tokens[2]);\r
  80             header.add(BluePrintConstants.RESPONSE_HEADER_LATEST_VERSION, appVersion);\r
  81         } catch (Exception e) {\r
  82             e.printStackTrace();\r
  83         }\r
  84 \r
  85         return webFilterChain.filter(serverWebExchange);\r
  86 \r
  87     }\r
  88 \r
  89     private static String defaultToUUID(String in) {\r
  90         return in == null ? UUID.randomUUID().toString() : in;\r
  91     }\r
  92 \r
  93     private static String defaultToEmpty(Object in) {\r
  94         return in == null ? "" : in.toString();\r
  95     }\r
  96 \r
  97 \r
  98 }