content: /*
   *  Copyright 2015 Adobe Systems Incorporated
   *
   *  Licensed 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 com.aem.geeks.core.filters;
  
  import java.io.IOException;
  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 org.apache.sling.api.SlingHttpServletRequest;
  import org.apache.sling.engine.EngineConstants;
  import org.osgi.service.component.annotations.Component;
  import org.osgi.service.component.propertytypes.ServiceDescription;
  import org.osgi.service.component.propertytypes.ServiceRanking;
  import org.osgi.service.component.propertytypes.ServiceVendor;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Simple servlet filter component that logs incoming requests.
   */
  @Component(service = Filter.class,
             property = {
                     EngineConstants.SLING_FILTER_SCOPE + "=" + EngineConstants.FILTER_SCOPE_REQUEST,
             })
  @ServiceDescription("Demo to filter incoming requests")
  @ServiceRanking(-700)
  @ServiceVendor("Adobe")
  public class LoggingFilter implements Filter {
  
      private final Logger logger = LoggerFactory.getLogger(getClass());
  
      @Override
      public void doFilter(final ServletRequest request, final ServletResponse response,
                           final FilterChain filterChain) throws IOException, ServletException {
  
          final SlingHttpServletRequest slingRequest = (SlingHttpServletRequest) request;
          logger.debug("request for {}, with selector {}", slingRequest
                  .getRequestPathInfo().getResourcePath(), slingRequest
                  .getRequestPathInfo().getSelectorString());
  
          filterChain.doFilter(request, response);
      }
  
      @Override
      public void init(FilterConfig filterConfig) {
      }
  
      @Override
      public void destroy() {
      }
  
  }