Java tutorial
/* * * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under * one or more contributor license agreements (see COPYRIGHT for details). * The CA licenses this file to you under the GNU Affero General Public * License version 3, (the "License"); you may not use this file except in * compliance with the License. This file is part of kune. * * 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 cc.kune.core.server.manager.file; import java.io.File; import net.sf.json.JSONObject; import org.apache.commons.fileupload.FileItem; import cc.kune.common.shared.i18n.I18nTranslationService; import cc.kune.core.server.UserSessionManager; import cc.kune.core.server.access.AccessService; import cc.kune.core.server.auth.ActionLevel; import cc.kune.core.server.auth.Authenticated; import cc.kune.core.server.auth.Authorizated; import cc.kune.core.server.content.ContentUtils; import cc.kune.core.server.content.CreationService; import cc.kune.core.server.manager.FileManager; import cc.kune.core.server.persist.KuneTransactional; import cc.kune.core.server.properties.KuneProperties; import cc.kune.core.server.utils.StringW; import cc.kune.core.shared.domain.AccessRol; import cc.kune.core.shared.domain.utils.StateToken; import cc.kune.domain.BasicMimeType; import cc.kune.domain.Container; import cc.kune.domain.Content; import cc.kune.domain.User; import com.google.inject.Inject; import com.google.inject.servlet.RequestScoped; // TODO: Auto-generated Javadoc /** * The Class FileUploadManager. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ @RequestScoped public class FileUploadManager extends FileJsonUploadManagerAbstract { /** The Constant serialVersionUID. */ private static final long serialVersionUID = -7209922761735338754L; /** The access service. */ @Inject AccessService accessService; /** The creation service. */ @Inject CreationService creationService; /** The file manager. */ @Inject FileManager fileManager; /** The i18n. */ @Inject I18nTranslationService i18n; /** The user session. */ @Inject UserSessionManager userSession; /* * (non-Javadoc) * * @see * cc.kune.core.server.manager.file.FileUploadManagerAbstract#beforePostStart * () */ @Override protected void beforePostStart() { } /* * (non-Javadoc) * * @see cc.kune.core.server.manager.file.FileJsonUploadManagerAbstract# * createJsonResponse(boolean, java.lang.String) */ @Override protected JSONObject createJsonResponse(final boolean success, final String message) { /** * * http://max-bazhenov.com/dev/upload-dialog-2.0/index.php * * Server side handler. * * The files in the queue are posted one at a time, the file field name is * 'file'. The handler should return json encoded object with following * properties: { success: true|false, // required error: 'Error or success * message' // optional, also can be named 'message' } */ JSONObject response = null; try { response = new JSONObject(); response.put("success", success); response.put("error", message); response.put("code", "232"); } catch (final Exception e) { LOG.error("Error building response"); } return response; } /* * (non-Javadoc) * * @see * cc.kune.core.server.manager.file.FileUploadManagerAbstract#createUploadedFile * (java.lang.String, cc.kune.core.shared.domain.utils.StateToken, * java.lang.String, org.apache.commons.fileupload.FileItem, java.lang.String) */ @Override protected void createUploadedFile(final String userHash, final StateToken stateToken, final String fileName, final FileItem file, final String typeId) throws Exception { createUploadedFileWrapped(userHash, stateToken, fileName, file, typeId); } /** * Creates the uploaded file wrapped. * * @param userHash * the user hash * @param stateToken * the state token * @param fileName * the file name * @param fileUploadItem * the file upload item * @param typeId * the type id * @return the content * @throws Exception * the exception */ @Authenticated @Authorizated(accessRolRequired = AccessRol.Editor, actionLevel = ActionLevel.container, mustCheckMembership = false) @KuneTransactional Content createUploadedFileWrapped(final String userHash, final StateToken stateToken, final String fileName, final FileItem fileUploadItem, final String typeId) throws Exception { final String relDir = FileUtils.toDir(stateToken); final String absDir = kuneProperties.get(KuneProperties.UPLOAD_LOCATION) + relDir; fileManager.mkdir(absDir); File file = null; try { final String filenameUTF8 = new String(fileName.getBytes(), UTF8); file = fileManager.createFileWithSequentialName(absDir, filenameUTF8); fileUploadItem.write(file); final String mimetype = fileUploadItem.getContentType(); final BasicMimeType basicMimeType = new BasicMimeType(mimetype); LOG.info("Mimetype: " + basicMimeType); final String extension = FileUtils.getFileNameExtension(file.getName(), false); String preview = ""; if (basicMimeType.isImage()) { generateThumbs(absDir, file.getName(), extension, false); } else if (basicMimeType.isPdf()) { generateThumbs(absDir, file.getName(), "png", true); } else if (basicMimeType.isText()) { final String textPreview = new String(FileUtils.getBytesFromFile(file)); preview = "<pre>" + StringW.wordWrap(textPreview) + "</pre>"; } // Persist final User user = userSession.getUser(); final Container container = accessService .accessToContainer(ContentUtils.parseId(stateToken.getFolder()), user, AccessRol.Editor); final Content content = creationService.createContent( FileUtils.getFileNameWithoutExtension(file.getName(), extension), preview, user, container, typeId); content.setMimeType(basicMimeType); content.setFilename(file.getName()); return content; } catch (final Exception e) { if (file != null && file.exists()) { logFileDel(file.delete()); } throw e; } } /** * Generate thumbs. * * @param absDir * the abs dir * @param filename * the filename * @param extension * the extension * @param isPdf * the is pdf */ private void generateThumbs(final String absDir, final String filename, final String extension, final boolean isPdf) { ImageUtilsDefault.generateThumbs(absDir, filename, extension, isPdf, Integer.parseInt(kuneProperties.get(KuneProperties.IMAGES_RESIZEWIDTH)), Integer.parseInt(kuneProperties.get(KuneProperties.IMAGES_THUMBSIZE)), Integer.parseInt(kuneProperties.get(KuneProperties.IMAGES_CROPSIZE)), Integer.parseInt(kuneProperties.get(KuneProperties.IMAGES_ICONSIZE))); } }