Java tutorial
/* * Copyright 2012 Axel Winkler, Daniel Dunr * * This file is part of Daxplore Presenter. * * Daxplore Presenter is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 2.1 of the License, or * (at your option) any later version. * * Daxplore Presenter 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Daxplore Presenter. If not, see <http://www.gnu.org/licenses/>. */ package org.daxplore.presenter.client.json.shared; import java.util.LinkedList; import java.util.List; import com.google.gwt.core.client.JsArrayBoolean; import com.google.gwt.core.client.JsArrayInteger; import com.google.gwt.core.client.JsArrayNumber; import com.google.gwt.core.client.JsArrayString; /** * Static helper methods used to manipulate native json/javascript objects. */ public class JsonTools { /** * Convert a {@link JsArrayString} to a String array. * * @param jsArray * the js array * @return the string[] */ public static String[] jsArrayAsArray(JsArrayString jsArray) { String[] javaArray = new String[jsArray.length()]; for (int i = 0; i < jsArray.length(); i++) { javaArray[i] = jsArray.get(i); } return javaArray; } /** * Convert a {@link JsArrayInteger} to an int array. * * @param jsArray * the js array * @return the int[] */ public static int[] jsArrayAsArray(JsArrayInteger jsArray) { int[] javaArray = new int[jsArray.length()]; for (int i = 0; i < jsArray.length(); i++) { javaArray[i] = jsArray.get(i); } return javaArray; } /** * Convert a {@link JsArrayNumber} to a double array. * * @param jsArray * the js array * @return the double[] */ public static double[] jsArrayAsArray(JsArrayNumber jsArray) { double[] javaArray = new double[jsArray.length()]; for (int i = 0; i < jsArray.length(); i++) { javaArray[i] = jsArray.get(i); } return javaArray; } /** * Convert a {@link JsArrayBoolean} to a boolean array. * * @param jsArray * the js array * @return the boolean[] */ public static boolean[] jsArrayAsArray(JsArrayBoolean jsArray) { boolean[] javaArray = new boolean[jsArray.length()]; for (int i = 0; i < jsArray.length(); i++) { javaArray[i] = jsArray.get(i); } return javaArray; } /** * Convert a {@link JsArrayString} to a List<String>. * * @param jsArray * the js array * @return the list */ public static List<String> jsArrayAsList(JsArrayString jsArray) { List<String> list = new LinkedList<String>(); for (int i = 0; i < jsArray.length(); i++) { list.add(jsArray.get(i)); } return list; } /** * Convert a {@link JsArrayInteger} to a List<Integer>. * * @param jsArray * the js array * @return the list */ public static List<Integer> jsArrayAsList(JsArrayInteger jsArray) { List<Integer> list = new LinkedList<Integer>(); for (int i = 0; i < jsArray.length(); i++) { list.add(jsArray.get(i)); } return list; } /** * Convert a {@link JsArrayNumber} to a List<Double>. * * @param jsArray * the js array * @return the list */ public static List<Double> jsArrayAsList(JsArrayNumber jsArray) { List<Double> list = new LinkedList<Double>(); for (int i = 0; i < jsArray.length(); i++) { list.add(jsArray.get(i)); } return list; } /** * Convert a {@link JsArrayBoolean} to a List<Boolean>. * * @param jsArray * the js array * @return the list */ public static List<Boolean> jsArrayAsList(JsArrayBoolean jsArray) { List<Boolean> list = new LinkedList<Boolean>(); for (int i = 0; i < jsArray.length(); i++) { list.add(jsArray.get(i)); } return list; } }