gerrit.onap Code Review - ccsdk/cds.git/blob

   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.onap.logging.ref.slf4j.ONAPLogAdapter;\r
  24 import org.slf4j.Logger;\r
  25 import org.slf4j.LoggerFactory;\r
  26 import org.slf4j.MDC;\r
  27 import org.springframework.beans.factory.annotation.Value;\r
  28 import org.springframework.core.Ordered;\r
  29 import org.springframework.core.annotation.Order;\r
  30 import org.springframework.stereotype.Component;\r
  31 \r
  32 import javax.servlet.*;\r
  33 import javax.servlet.annotation.WebFilter;\r
  34 import javax.servlet.http.HttpServletRequest;\r
  35 import javax.servlet.http.HttpServletResponse;\r
  36 import java.io.IOException;\r
  37 \r
  38 /**\r
  39  * ApplicationLoggingFilter\r
  40  *\r
  41  * @author Brinda Santh 8/14/2018\r
  42  */\r
  43 @Component\r
  44 @WebFilter(asyncSupported = true, urlPatterns = {"/*"})\r
  45 @Order(Ordered.HIGHEST_PRECEDENCE)\r
  46 @SuppressWarnings("unused")\r
  47 public class ApplicationLoggingFilter implements Filter {\r
  48     private static Logger log = LoggerFactory.getLogger(ApplicationLoggingFilter.class);\r
  49 \r
  50     @SuppressWarnings("unused")\r
  51     @Value("${appVersion}")\r
  52     private String appVersion;\r
  53 \r
  54     public void doFilter(ServletRequest request,\r
  55                          ServletResponse response,\r
  56                          FilterChain chain) throws IOException, ServletException {\r
  57 \r
  58         HttpServletRequest req = (HttpServletRequest) request;\r
  59         HttpServletResponse res = (HttpServletResponse) response;\r
  60 \r
  61         ONAPLogAdapter onapLogAdapter = new ONAPLogAdapter(log);\r
  62         onapLogAdapter.entering(req);\r
  63 \r
  64         String[] tokens = StringUtils.split(appVersion, '.');\r
  65         Preconditions.checkNotNull(tokens, "failed to split application versions");\r
  66         Preconditions.checkArgument(tokens.length == 3, "failed to tokenize application versions");\r
  67         res.addHeader(BluePrintConstants.RESPONSE_HEADER_TRANSACTION_ID, MDC.get("RequestID"));\r
  68         res.addHeader(BluePrintConstants.RESPONSE_HEADER_MINOR_VERSION, tokens[1]);\r
  69         res.addHeader(BluePrintConstants.RESPONSE_HEADER_PATCH_VERSION, tokens[2]);\r
  70         res.addHeader(BluePrintConstants.RESPONSE_HEADER_LATEST_VERSION, appVersion);\r
  71         chain.doFilter(request, response);\r
  72         // Clean the MDC info\r
  73         onapLogAdapter.exiting();\r
  74     }\r
  75 \r
  76     @Override\r
  77     public void init(FilterConfig filterConfig) {\r
  78       //method does nothing\r
  79     }\r
  80 \r
  81     @Override\r
  82     public void destroy() {\r
  83       //method does nothing\r
  84     }\r
  85 }