| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file 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. |
| */ |
| package org.apache.sling.extensions.mdc.internal; |
| |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.slf4j.MDC; |
| |
| import javax.jcr.Session; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import java.io.IOException; |
| |
| class SlingMDCFilter implements Filter { |
| public static final String SLING_USER = "sling.userId"; |
| public static final String JCR_SESSION_ID = "jcr.sessionId"; |
| |
| private static final String[] DEFAULT_KEY_NAMES = { |
| SLING_USER, |
| JCR_SESSION_ID |
| }; |
| |
| public void init(FilterConfig filterConfig) throws ServletException { |
| |
| } |
| |
| public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, |
| FilterChain filterChain) throws IOException, ServletException { |
| final SlingHttpServletRequest request = (SlingHttpServletRequest) servletRequest; |
| |
| try { |
| insertIntoMDC(request); |
| filterChain.doFilter(request, servletResponse); |
| } finally { |
| clearMDC(); |
| } |
| } |
| |
| private void clearMDC() { |
| for (String key : DEFAULT_KEY_NAMES) { |
| MDC.remove(key); |
| } |
| } |
| |
| private void insertIntoMDC(SlingHttpServletRequest request) { |
| ResourceResolver rr = request.getResourceResolver(); |
| if(rr.getUserID() != null){ |
| MDC.put(SLING_USER,rr.getUserID()); |
| } |
| |
| Session session = rr.adaptTo(Session.class); |
| if(session != null){ |
| MDC.put(JCR_SESSION_ID,session.toString()); |
| } |
| } |
| |
| public void destroy() { |
| |
| } |
| } |