/*
* Copyright (c) 2006-2009 by Dirk Riehle, http://dirkriehle.com
*
* This file is part of the Wahlzeit photo rating application.
*
* 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.
*
* 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/>.
*/
package org.wahlzeit.handlers;
import com.google.appengine.api.images.Image;
import org.wahlzeit.agents.AsyncTaskExecutor;
import org.wahlzeit.model.AccessRights;
import org.wahlzeit.model.ModelConfig;
import org.wahlzeit.model.Photo;
import org.wahlzeit.model.PhotoManager;
import org.wahlzeit.model.Tags;
import org.wahlzeit.model.User;
import org.wahlzeit.model.UserSession;
import org.wahlzeit.services.LogBuilder;
import org.wahlzeit.utils.StringUtil;
import org.wahlzeit.webparts.WebPart;
import java.util.Map;
import java.util.logging.Logger;
/**
* A handler class for a specific web form.
*/
public class UploadPhotoFormHandler extends AbstractWebFormHandler {
private static Logger log = Logger.getLogger(UploadPhotoFormHandler.class.getName());
/**
*
*/
public UploadPhotoFormHandler() {
initialize(PartUtil.UPLOAD_PHOTO_FORM_FILE, AccessRights.USER);
}
/**
*
*/
protected void doMakeWebPart(UserSession us, WebPart part) {
Map<String, Object> args = us.getSavedArgs();
part.addStringFromArgs(args, UserSession.MESSAGE);
part.maskAndAddStringFromArgs(args, Photo.TAGS);
}
/**
*
*/
protected String doHandlePost(UserSession us, Map args) {
String tags = us.getAndSaveAsString(args, Photo.TAGS);
ModelConfig config = us.getClient().getLanguageConfiguration();
if (!StringUtil.isLegalTagsString(tags)) {
us.setMessage(config.getInputIsInvalid());
return PartUtil.UPLOAD_PHOTO_PAGE_NAME;
}
try {
PhotoManager pm = PhotoManager.getInstance();
String fileName = us.getAsString(args, "fileName");
User user = (User) us.getClient();
Image uploadedImage = user.getUploadedImage();
Photo photo = pm.createPhoto(fileName, uploadedImage);
user.addPhoto(photo);
photo.setTags(new Tags(tags));
log.config(LogBuilder.createUserMessage().
addAction("Upload Photo").
addParameter("Photo", photo.getId().asString()).
addParameter("tags", photo.getTags().asString()).toString());
us.setTwoLineMessage(config.getPhotoUploadSucceeded(), config.getKeepGoing());
log.config(LogBuilder.createSystemMessage().
addAction("Calling async task to save Photo").
addParameter("ID", photo.getId().asString()).toString());
AsyncTaskExecutor.savePhotoAsync(photo.getId().asString());
} catch (Exception ex) {
log.warning(LogBuilder.createSystemMessage().addException("uploading photo failed", ex).toString());
us.setMessage(config.getPhotoUploadFailed());
}
return PartUtil.UPLOAD_PHOTO_PAGE_NAME;
}
}