001// Copyright 2006 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.
014package org.apache.tapestry.portlet.multipart;
015
016import java.io.File;
017import java.util.List;
018import java.util.Map;
019
020import javax.portlet.ActionRequest;
021
022import org.apache.commons.fileupload.FileItemFactory;
023import org.apache.commons.fileupload.FileUploadException;
024import org.apache.commons.fileupload.disk.DiskFileItemFactory;
025import org.apache.commons.fileupload.portlet.PortletFileUpload;
026import org.apache.hivemind.ApplicationRuntimeException;
027import org.apache.tapestry.multipart.AbstractMultipartDecoder;
028import org.apache.tapestry.multipart.MultipartMessages;
029
030/**
031 * @author Raphael Jean
032 *
033 */
034public class PortletMultipartDecoderImpl extends AbstractMultipartDecoder implements PortletMultipartDecoder {
035
036        /* maximum size of file allowed to be uploaded */
037        protected long _sizeMax = 10000000;
038        /* 
039         * boolean check for whether someone has manually set 
040         * the maximum upload size directly on this service 
041         */
042        protected boolean _sizeMaxSet = false;
043        
044        public ActionRequest decode(ActionRequest request) {
045        _encoding = request.getCharacterEncoding();
046
047        PortletFileUpload upload = createFileUpload();
048
049        try
050        {
051            List fileItems = upload.parseRequest(request);
052
053            processFileItems(fileItems);
054        }
055        catch (FileUploadException ex)
056        {
057            throw new ApplicationRuntimeException(MultipartMessages.unableToDecode(ex), ex);
058        }
059
060        Map parameterMap = buildParameterMap();
061
062        return new UploadFormPortletParametersWrapper(request, parameterMap);
063        }
064        
065        private PortletFileUpload createFileUpload() {
066        FileItemFactory factory = new DiskFileItemFactory(_thresholdSize, new File(_repositoryPath));
067        PortletFileUpload upload = new PortletFileUpload(factory);
068        
069        // set maximum file upload size
070        upload.setSizeMax(_sizeMax);
071        
072        if (_encoding != null)
073            upload.setHeaderEncoding(_encoding);
074
075        return upload;
076        }
077
078        /**
079         * {@inheritDoc}
080         */
081        public void setSizeMax(long sizeMax)
082        {
083                _sizeMaxSet = true;
084                _sizeMax = sizeMax;
085        }
086        
087        /**
088         * {@inheritDoc}
089         */
090        public boolean isMaxSizeSet()
091        {
092                return _sizeMaxSet;
093        }
094}