001    /*
002      Copyright (C) 2002 Laurent Martelli <laurent@aopsys.com>
003      
004      This program is free software; you can redistribute it and/or modify
005      it under the terms of the GNU Lesser General Public License as
006      published by the Free Software Foundation; either version 2 of the
007      License, or (at your option) any later version.
008    
009      This program is distributed in the hope that it will be useful,
010      but WITHOUT ANY WARRANTY; without even the implied warranty of
011      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012      GNU Lesser General Public License for more details.
013    
014      You should have received a copy of the GNU Lesser General Public License
015      along with this program; if not, write to the Free Software
016      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
017    
018    package org.objectweb.jac.aspects.gui.web;
019    
020    import org.objectweb.jac.core.rtti.FieldItem;
021    import org.objectweb.jac.lib.Attachment;
022    import org.objectweb.jac.util.Streams;
023    import java.io.IOException;
024    import java.io.PrintWriter;
025    
026    public class AttachmentEditor extends AbstractFieldEditor
027        implements HTMLEditor
028    {
029        public AttachmentEditor(Object substance, FieldItem field) {
030            super(substance,field);
031        }
032    
033        // HTMLEditor interface
034    
035        protected boolean doReadValue(Object parameter) {
036            RequestPart part = (RequestPart)parameter;
037            if(part.getFilename()==null || part.getFilename().equals("")) {
038                return false;
039            }
040            try {
041                byte[] data = Streams.readStream(part.getData());
042                Attachment attachment = 
043                    new Attachment(data,
044                                   (String)part.getHeaders().get("content-type"),
045                                   part.getFilename());
046                setValue(attachment);
047                return true;
048            } catch (IOException e) {
049                logger.error("Failed to read data for parameters "+part.getName(),e);
050                return false;
051            }
052        }
053       
054        public void genHTML(PrintWriter out) {
055            out.print("<input name=\""+label+"\" type=\"file\">");
056        }
057    }