Java tutorial
/******************************************************************************* * This file is part of the EEG-database project * * ========================================== * * Copyright (C) 2013 by University of West Bohemia (http://www.zcu.cz/en/) * * *********************************************************************************************************************** * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. * * *********************************************************************************************************************** * * AddDataFilePage.java, 2014/06/12 00:01 Jakub Rinkes ******************************************************************************/ package cz.zcu.kiv.eegdatabase.wui.ui.data; import java.util.ArrayList; import java.util.List; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.wicket.RestartResponseAtInterceptPageException; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.form.AjaxButton; import org.apache.wicket.authroles.authorization.strategies.role.annotations.AuthorizeInstantiation; import org.apache.wicket.feedback.ComponentFeedbackMessageFilter; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.form.upload.FileUpload; import org.apache.wicket.markup.html.form.upload.MultiFileUploadField; import org.apache.wicket.markup.html.panel.FeedbackPanel; import org.apache.wicket.model.IModel; import org.apache.wicket.model.util.ListModel; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.spring.injection.annot.SpringBean; import org.apache.wicket.util.string.StringValue; import cz.zcu.kiv.eegdatabase.data.pojo.DataFile; import cz.zcu.kiv.eegdatabase.data.pojo.Experiment; import cz.zcu.kiv.eegdatabase.wui.components.menu.button.ButtonPageMenu; import cz.zcu.kiv.eegdatabase.wui.components.page.MenuPage; import cz.zcu.kiv.eegdatabase.wui.components.utils.PageParametersUtils; import cz.zcu.kiv.eegdatabase.wui.components.utils.ResourceUtils; import cz.zcu.kiv.eegdatabase.wui.core.experiments.ExperimentsFacade; import cz.zcu.kiv.eegdatabase.wui.core.file.FileFacade; import cz.zcu.kiv.eegdatabase.wui.ui.experiments.ExperimentsDetailPage; import cz.zcu.kiv.eegdatabase.wui.ui.experiments.ExperimentsPageLeftMenu; import cz.zcu.kiv.eegdatabase.wui.ui.experiments.ListExperimentsPage; @AuthorizeInstantiation(value = { "ROLE_USER", "ROLE_EXPERIMENTER", "ROLE_ADMIN" }) public class AddDataFilePage extends MenuPage { private static final long serialVersionUID = -1065232841030454856L; protected Log log = LogFactory.getLog(getClass()); @SpringBean private ExperimentsFacade facade; @SpringBean private FileFacade fileFacade; private MultiFileUploadField fileUploadField; private IModel<List<FileUpload>> model; public AddDataFilePage(PageParameters parameters) { StringValue stringValue = parameters.get(DEFAULT_PARAM_ID); if (stringValue.isNull() || stringValue.isEmpty()) { throw new RestartResponseAtInterceptPageException(ListExperimentsPage.class); } int experimentId = stringValue.toInt(); setPageTitle(ResourceUtils.getModel("pageTitle.addDataFile")); add(new ButtonPageMenu("leftMenu", ExperimentsPageLeftMenu.values())); setupComponents(experimentId); } private void setupComponents(final int experimentId) { final Experiment experiment = facade.read(experimentId); model = new ListModel<FileUpload>(new ArrayList<FileUpload>()); fileUploadField = new MultiFileUploadField("file", model); Form<List<FileUpload>> uploadForm = new Form<List<FileUpload>>("uploadForm"); ComponentFeedbackMessageFilter fileFilter = new ComponentFeedbackMessageFilter(fileUploadField); final FeedbackPanel fileFeedback = new FeedbackPanel("fileFeedback", fileFilter); fileFeedback.setOutputMarkupId(true); uploadForm.add(fileUploadField); uploadForm.add(fileFeedback); AjaxButton submit = new AjaxButton("submit", ResourceUtils.getModel("button.addDataFile")) { private static final long serialVersionUID = 1L; @Override protected void onError(AjaxRequestTarget target, Form<?> form) { target.add(fileFeedback); target.add(getFeedback()); } @Override protected void onSubmit(AjaxRequestTarget target, Form<?> form) { try { List<FileUpload> fileUploadList = model.getObject(); if (!fileUploadList.isEmpty()) { for (FileUpload fileUpload : fileUploadList) { DataFile file = new DataFile(); file.setMimetype(fileUpload.getContentType()); file.setFilename(fileUpload.getClientFileName()); file.setFileContentStream(fileUpload.getInputStream()); file.setExperiment(experiment); fileFacade.create(file); } } setResponsePage(ExperimentsDetailPage.class, PageParametersUtils.getDefaultPageParameters(experimentId)); } catch (Exception ex) { error(ResourceUtils.getString("error.file.add.error")); log.error(ex.getMessage(), ex); target.add(getFeedback()); target.add(fileFeedback); } } }; uploadForm.add(submit); add(uploadForm); } }