Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ package ro.nextreports.server.web.action.report; import org.apache.wicket.markup.html.link.AbstractLink; import org.apache.wicket.markup.html.link.ResourceLink; import org.apache.wicket.model.StringResourceModel; import ro.nextreports.server.domain.Entity; import ro.nextreports.server.domain.Report; import ro.nextreports.server.web.core.action.AbstractActionContributor; import ro.nextreports.server.web.core.action.ActionContext; import ro.nextreports.server.web.report.ReportResource; import java.util.List; import java.util.ArrayList; // public class DownloadActionContributor extends AbstractActionContributor { private static final long serialVersionUID = 1L; public static final String ID = DownloadActionContributor.class.getName(); public boolean support(List<Entity> entities) { for (Entity entity : entities) { if (!(entity instanceof Report)) { return false; } } return true; } public String getActionImage() { return "images/download.png"; } public String getActionName() { return new StringResourceModel("download", null).getString(); } public String getId() { return ID; } public AbstractLink getLink(ActionContext context) { List<Report> reports = new ArrayList<Report>(); for (Entity entity : context.getEntities()) { reports.add((Report) entity); } ReportResource download = new ReportResource(reports); return new ResourceLink<ReportResource>(context.getLinkId(), download); } }