Java tutorial
/* * Copyright (C) 2016 Singular Studios (a.k.a Atom Tecnologia) - www.opensingular.com * * 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. */ package org.opensingular.lib.wicket.util.ajax; import static org.opensingular.lib.wicket.util.util.WicketUtils.$m; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.AjaxLink; import org.apache.wicket.markup.ComponentTag; import org.apache.wicket.model.IModel; import org.opensingular.lib.wicket.util.util.WicketEventUtils; @SuppressWarnings({ "serial" }) public abstract class ActionAjaxLink<T> extends AjaxLink<T> { private final static Logger LOGGER = Logger.getLogger(ActionAjaxLink.class.getName()); public ActionAjaxLink(String id, IModel<T> model) { super(id, model); } public ActionAjaxLink(String id) { super(id); } protected abstract void onAction(AjaxRequestTarget target); @Override public void onClick(AjaxRequestTarget target) { try { onAction(target); } catch (RuntimeException ex) { LOGGER.log(Level.INFO, "Ajax error", ex); WicketEventUtils.addErrorMessage(this, null, $m.ofValue(ex.getMessage())); // TODO substituir por esquema de exceo de negcio WicketEventUtils.sendAjaxErrorEvent(this, target); } } @Override protected void disableLink(ComponentTag tag) { String tagName = tag.getName(); if ("a".equalsIgnoreCase(tagName)) { tag.remove("class"); tag.remove("onclick"); tag.put("href", "javascript:"); tag.put("disabled", "disabled"); tag.put("style", "cursor: not-allowed;color: #999;"); } else { super.disableLink(tag); } } @Override @SuppressWarnings("unchecked") public ActionAjaxLink<T> setBody(IModel<?> bodyModel) { return (ActionAjaxLink<T>) super.setBody(bodyModel); } }