Java tutorial
/* * Copyright 2011, The gwtquery team. * * 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 com.cgxlib.xq.client.builders; /* * #%L * CGXlib * %% * Copyright (C) 2016 CGXlib (http://www.cgxlib.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. * #L% Code is originally from gwtquery, and modified by CGXlib team. */ import com.cgxlib.xq.client.Properties; import com.cgxlib.xq.client.XQ; import com.cgxlib.xq.client.js.JsUtils; import com.google.gwt.core.client.JavaScriptObject; import com.google.gwt.core.client.JsDate; import com.google.gwt.dom.client.Element; import java.util.Date; import static com.cgxlib.xq.client.XQ.$; /** * Common code in XmlBuilder implementations. * * @param <J> */ public abstract class XmlBuilderBase<J extends XmlBuilderBase<?>> implements XmlBuilder { // TODO empty document protected XQ g = $((Element) JsUtils.parseXML("<root/>")); public void append(String xml) { g.append(JsUtils.parseXML(xml)); } public void append(XmlBuilder x) { g.append(x.getRootElement()); } protected Boolean getBooleanBase(String n) { return "true".equalsIgnoreCase(getStrBase(n)); } protected Element getElementBase(String n) { return g.children(n).get(0); } protected Element[] getElementsBase(String n) { return g.children(n).elements(); } protected float getFloatBase(String s) { String n = getStrBase(s).replaceAll("[^\\d\\-\\.]", ""); return n.isEmpty() ? 0 : Float.parseFloat(n); } protected Properties getPropertiesBase(String n) { // TODO: return null; } public Element getRootElement() { return g.get(0); } protected String getStrBase(String n) { return g.attr(n); } public String getText() { return g.text(); } public double getTextAsNumber() { String t = g.text().replaceAll("[^\\d\\.\\-]", ""); return t.isEmpty() ? 0 : Double.parseDouble(t); } public Date getTextAsDate() { String t = g.text().trim(); if (t.matches("\\d+")) { return new Date(Long.parseLong(t)); } else { return new Date((long) JsDate.parse(t)); } } public boolean getTextAsBoolean() { String t = g.text().trim().toLowerCase(); return !t.matches("^(|false|off|0)$"); } public <T extends Enum<T>> T getTextAsEnum(Class<T> clazz) { String t = g.text().trim(); return Enum.valueOf(clazz, t); } @SuppressWarnings("unchecked") public J load(Object o) { assert o == null || o instanceof JavaScriptObject && JsUtils.isElement((JavaScriptObject) o) || o instanceof String; if (o != null && o instanceof String) { return parse((String) o); } if (o != null) { g = $((Element) o); } return (J) this; } @SuppressWarnings("unchecked") public J parse(String xml) { return load(JsUtils.parseXML(xml)); } protected <T> void setArrayBase(String n, T[] r) { String v = ""; for (T t : r) { v += String.valueOf(t); } setBase(n, v); } protected void setBase(String n, Object v) { g.attr(n, v); } @SuppressWarnings("unchecked") public <T> T setText(String t) { g.text(t); return (T) this; } public String toString() { return g.toString(); } }