001/* 002 * (C) Copyright 2016 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * "Guillaume Renard" 018 */ 019 020package org.nuxeo.elasticsearch; 021 022import java.io.IOException; 023 024import javax.servlet.Filter; 025import javax.servlet.FilterChain; 026import javax.servlet.FilterConfig; 027import javax.servlet.ServletException; 028import javax.servlet.ServletRequest; 029import javax.servlet.ServletResponse; 030import javax.servlet.http.HttpServletRequest; 031 032import org.nuxeo.elasticsearch.listener.ElasticSearchInlineListener; 033 034/** 035 * @since 8.3 036 */ 037public class ElasticSearchFilter implements Filter { 038 039 public static final String ES_SYNC_FLAG = "nx-es-sync"; 040 041 protected static final String ES_SYNC_FLAG_COMPAT = "nx_es_sync"; 042 043 @Override 044 public void init(FilterConfig filterConfig) throws ServletException { 045 } 046 047 @Override 048 public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) 049 throws IOException, ServletException { 050 if (!(request instanceof HttpServletRequest)) { 051 chain.doFilter(request, response); 052 return; 053 } 054 final HttpServletRequest httpRequest = (HttpServletRequest) request; 055 final boolean esSync = Boolean.parseBoolean(httpRequest.getHeader(ES_SYNC_FLAG)) 056 // NXP-28075: keep compatibility with old header with underscores 057 || Boolean.parseBoolean(httpRequest.getHeader(ES_SYNC_FLAG_COMPAT)); 058 if (!esSync) { 059 chain.doFilter(request, response); 060 return; 061 } 062 ElasticSearchInlineListener.useSyncIndexing.set(true); 063 try { 064 chain.doFilter(request, response); 065 } finally { 066 ElasticSearchInlineListener.useSyncIndexing.set(false); 067 } 068 } 069 070 @Override 071 public void destroy() { 072 } 073 074}