001// Copyright 2007, 2008 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry5.upload.internal.services; 016 017import org.apache.commons.fileupload.servlet.ServletFileUpload; 018import org.apache.tapestry5.services.HttpServletRequestFilter; 019import org.apache.tapestry5.services.HttpServletRequestHandler; 020import org.apache.tapestry5.upload.services.MultipartDecoder; 021 022import javax.servlet.http.HttpServletRequest; 023import javax.servlet.http.HttpServletResponse; 024import java.io.IOException; 025 026/** 027 * Filter that decodes an incoming multipart request. 028 */ 029public class MultipartServletRequestFilter implements HttpServletRequestFilter 030{ 031 private final MultipartDecoder decoder; 032 033 public MultipartServletRequestFilter(MultipartDecoder multipartDecoder) 034 { 035 decoder = multipartDecoder; 036 } 037 038 @Override 039 public boolean service(HttpServletRequest request, HttpServletResponse response, HttpServletRequestHandler handler) 040 throws IOException 041 { 042 HttpServletRequest newRequest = ServletFileUpload.isMultipartContent(request) ? decoder.decode( 043 request) : request; 044 045 return handler.service(newRequest, response); 046 } 047 048}