com.stratelia.webactiv.quizz.QuestionHelper.java Source code

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Here is the source code for com.stratelia.webactiv.quizz.QuestionHelper.java

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/**
 * Copyright (C) 2000 - 2013 Silverpeas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * As a special exception to the terms and conditions of version 3.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * Open Source Software ("FLOSS") applications as described in Silverpeas's
 * FLOSS exception.  You should have received a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * "http://www.silverpeas.org/docs/core/legal/floss_exception.html"
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
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package com.stratelia.webactiv.quizz;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.fileupload.FileItem;

import com.silverpeas.util.StringUtil;
import org.silverpeas.servlet.FileUploadUtil;
import com.stratelia.webactiv.util.FileRepositoryManager;
import com.stratelia.webactiv.util.answer.model.Answer;

/**
 * @author ehugonnet
 */
public class QuestionHelper {

    public static boolean isCorrectFile(FileItem filePart) {
        String fileName = FileUploadUtil.getFileName(filePart);
        boolean correctFile = false;
        if (fileName != null) {
            String logicalName = fileName.trim();
            if ((logicalName != null) && (logicalName.length() >= 3) && (logicalName.indexOf('.') != -1)) {
                String type = logicalName.substring(logicalName.indexOf('.') + 1, logicalName.length());
                if (type.length() >= 3) {
                    correctFile = true;
                }
            }
        }
        return correctFile;
    }

    public static List<Answer> extractAnswer(List<FileItem> items, QuestionForm form, String componentId,
            String subdir) throws IOException {
        List<Answer> answers = new ArrayList<Answer>();
        Iterator<FileItem> iter = items.iterator();
        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
            String mpName = item.getFieldName();
            if (item.isFormField() && mpName.startsWith("answer")) {
                String answerInput = FileUploadUtil.getOldParameter(items, mpName, "");
                Answer answer = new Answer(null, null, answerInput, 0, false, null, 0, false, null, null);
                String id = mpName.substring("answer".length());
                String nbPoints = FileUploadUtil.getOldParameter(items, "nbPoints" + id, "0");
                answer.setNbPoints(Integer.parseInt(nbPoints));
                if (Integer.parseInt(nbPoints) > 0) {
                    answer.setIsSolution(true);
                }
                String comment = FileUploadUtil.getOldParameter(items, "comment" + id, "");
                answer.setComment(comment);
                String value = FileUploadUtil.getOldParameter(items, "valueImageGallery" + id, "");
                if (StringUtil.isDefined(value)) {
                    // traiter les images venant de la gallery si pas d'image externe
                    if (!form.isFile()) {
                        answer.setImage(value);
                    }
                }
                FileItem image = FileUploadUtil.getFile(items, "image" + id);
                if (image != null) {
                    addImageToAnswer(answer, image, form, componentId, subdir);
                }
                answers.add(answer);
            }
        }
        return answers;
    }

    protected static void addImageToAnswer(Answer answer, FileItem item, QuestionForm form, String componentId,
            String subdir) throws IOException {
        // it's a file part
        if (QuestionHelper.isCorrectFile(item)) {
            // the part actually contained a file
            String logicalName = FileUploadUtil.getFileName(item);
            String type = logicalName.substring(logicalName.indexOf('.') + 1, logicalName.length());
            String physicalName = Long.toString(new Date().getTime()) + form.getAttachmentSuffix() + "." + type;
            form.setAttachmentSuffix(form.getAttachmentSuffix() + 1);
            File dir = new File(
                    FileRepositoryManager.getAbsolutePath(componentId) + subdir + File.separator + physicalName);
            long size = item.getSize();
            FileUploadUtil.saveToFile(dir, item);
            if (size > 0) {
                answer.setImage(physicalName);
                form.setFile(true);
            }
        }
    }
}