001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.wsclient.unmarshallers;
021    
022    import org.sonar.wsclient.services.Model;
023    import org.sonar.wsclient.services.WSUtils;
024    
025    import java.util.ArrayList;
026    import java.util.List;
027    
028    public abstract class AbstractUnmarshaller<MODEL extends Model> implements Unmarshaller<MODEL> {
029    
030      public final MODEL toModel(String json) {
031        WSUtils utils = WSUtils.getINSTANCE();
032        MODEL result = null;
033        Object array = utils.parse(json);
034        if (utils.getArraySize(array) >= 1) {
035          Object elt = utils.getArrayElement(array, 0);
036          if (elt != null) {
037            result = parse(elt);
038          }
039        }
040        return result;
041    
042      }
043    
044      public final List<MODEL> toModels(String json) {
045        WSUtils utils = WSUtils.getINSTANCE();
046        List<MODEL> result = new ArrayList<MODEL>();
047        Object array = utils.parse(json);
048        for (int i = 0; i < utils.getArraySize(array); i++) {
049          Object elt = utils.getArrayElement(array, i);
050          if (elt != null) {
051            result.add(parse(elt));
052          }
053        }
054        return result;
055      }
056    
057      protected abstract MODEL parse(Object elt);
058    }