| /* |
| * 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.rewriter.impl; |
| |
| 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.api.SlingHttpServletResponse; |
| import org.apache.sling.rewriter.ProcessorManager; |
| import org.osgi.framework.Constants; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| |
| /** |
| * This filter activates the rewriter for the output. |
| * |
| */ |
| @Component( |
| service = Filter.class, |
| property = { |
| Constants.SERVICE_VENDOR + "=The Apache Software Foundation", |
| "sling.filter.scope=request", |
| "sling.filter.scope=error", |
| Constants.SERVICE_RANKING + ":Integer=2500" |
| } |
| ) |
| public class RewriterFilter implements Filter { |
| |
| @Reference |
| private ProcessorManager pipelineManager; |
| |
| /** |
| * @see javax.servlet.Filter#init(javax.servlet.FilterConfig) |
| */ |
| @Override |
| public void init(FilterConfig config) throws ServletException { |
| // nothing to do |
| } |
| |
| /** |
| * @see javax.servlet.Filter#destroy() |
| */ |
| @Override |
| public void destroy() { |
| // nothing to do |
| } |
| |
| /** |
| * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) |
| */ |
| @Override |
| public void doFilter(ServletRequest request, |
| ServletResponse response, |
| FilterChain chain) |
| throws IOException, ServletException { |
| if ( ! (request instanceof SlingHttpServletRequest)) { |
| throw new ServletException("Request is not a Apache Sling HTTP request."); |
| } |
| final SlingHttpServletRequest slingRequest = (SlingHttpServletRequest) request; |
| final SlingHttpServletResponse slingResponse = (SlingHttpServletResponse) response; |
| |
| final RewriterResponse rewriterResponse = |
| new RewriterResponse(slingRequest, slingResponse, this.pipelineManager); |
| boolean errorOccured = true; |
| try { |
| chain.doFilter(request, rewriterResponse); |
| errorOccured = false; |
| } finally { |
| rewriterResponse.finished(errorOccured); |
| } |
| } |
| } |