| commit | author | age | ||
| ca8e1e | 1 | /* |
| U | 2 | Transit - Remote procedure calls made simple |
| 3 | Copyright (c) 2012 Ulrich Hilger | |
| 4 | ||
| 5 | This program is free software: you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Affero General Public License as published by | |
| 7 | the Free Software Foundation, either version 3 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Affero General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Affero General Public License | |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 | */ | |
| 18 | ||
| 19 | package de.uhilger.transit; | |
| 20 | ||
| 21 | import java.io.Writer; | |
| 22 | ||
| 23 | import com.thoughtworks.xstream.XStream; | |
| 24 | import com.thoughtworks.xstream.io.json.JsonHierarchicalStreamDriver; | |
| 25 | import com.thoughtworks.xstream.io.json.JsonWriter; | |
| 26 | import com.thoughtworks.xstream.io.HierarchicalStreamWriter; | |
| 27 | ||
| 28 | /** | |
| 29 | * Java-Objekte in die JavaScript Object Notation (JSON) | |
| 30 | * verwandeln und umgekehrt | |
| 31 | * | |
| 053e6a | 32 | * Dieser Wandler erzeugt ein strukturiertes und gut lesbares JSON-Format, |
| U | 33 | * bei dem das Wurzelelement weggelassen wird. Im Falle einer Liste wird |
| 34 | * damit z.B. der Inhalt ohne umschliessendes | |
| 35 | * <pre>{"List": [ ]}</pre> | |
| 36 | * erezeugt. | |
| 37 | * | |
| ca8e1e | 38 | * <p>Diese Klasse benoetigt die Java-Klassenbibliotheken |
| 42c48e | 39 | * <a href="http://xstream.codehaus.org/" target="_blank">XStream</a> |
| U | 40 | * und <a href="http://jettison.codehaus.org/" target="_blank">Jettison</a> |
| ca8e1e | 41 | * im Classpath.</p> |
| U | 42 | * |
| 43 | * @author Copyright (c) Ulrich Hilger, http://uhilger.de | |
| 44 | * @author Published under the terms and conditions of | |
| 45 | * the <a href="http://www.gnu.org/licenses/agpl-3.0" target="_blank">GNU Affero General Public License</a> | |
| 46 | * | |
| 47 | * @version 1, September 16, 2012 | |
| 48 | */ | |
| 49 | public class JsonFlatWandler extends AbstractWandler { | |
| 50 | ||
| 51 | /** Bezeichnerdes Formats, das dieser Wandler unterstuetzt */ | |
| 52 | public static final String FORMAT_FLATJSON = "FLATJSON"; | |
| 53 | ||
| 54 | protected XStream getXStream() { | |
| 55 | //XStream xstream = new XStream(new JettisonMappedXmlDriver()); | |
| 56 | XStream xstream = new XStream(new JsonHierarchicalStreamDriver() { | |
| 57 | public HierarchicalStreamWriter createWriter(Writer writer) { | |
| 58 | return new JsonWriter(writer, JsonWriter.DROP_ROOT_MODE); | |
| 59 | } | |
| 60 | }); | |
| 61 | return xstream; | |
| 62 | } | |
| 63 | ||
| 64 | /** | |
| 65 | * Das Format ermitteln, das dieser Wandler verarbeitet | |
| 66 | * @return das Format, das dieser Wandler verarbeitet | |
| 67 | */ | |
| 68 | @Override | |
| 69 | public String getFormat() { | |
| 70 | return FORMAT_FLATJSON; | |
| 71 | } | |
| 72 | ||
| 73 | } | |
