001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
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.gwt;
021    
022    import com.google.gwt.core.client.JavaScriptObject;
023    import com.google.gwt.i18n.client.Dictionary;
024    import org.sonar.gwt.JsonUtils;
025    import org.sonar.wsclient.gwt.unmarshallers.Unmarshaller;
026    import org.sonar.wsclient.gwt.unmarshallers.Unmarshallers;
027    import org.sonar.wsclient.services.Model;
028    import org.sonar.wsclient.services.Query;
029    
030    public class Sonar {
031    
032      private static Sonar instance = null;
033    
034      private final String host;
035    
036      public Sonar(String host) {
037        this.host = host;
038      }
039    
040      /**
041       * To be used in Sonar extensions only, else use constructors.
042       */
043      public static Sonar getInstance() {
044        if (instance == null) {
045          Dictionary dic = Dictionary.getDictionary("config");
046          instance = new Sonar(dic.get("sonar_url"));
047        }
048        return instance;
049      }
050    
051      public <MODEL extends Model> void find(final Query<MODEL> query, final Callback<MODEL> callback) {
052        JsonUtils.requestJson(getUrl(query), new JsonUtils.JSONHandler() {
053          public void onResponse(JavaScriptObject obj) {
054            Unmarshaller<MODEL> unmarshaller = Unmarshallers.forModel(query.getModelClass());
055            callback.onResponse(unmarshaller.toModel(obj), obj);
056          }
057    
058          public void onTimeout() {
059            callback.onTimeout();
060          }
061    
062          public void onError(int errorCode, String errorMessage) {
063            callback.onError(errorCode, errorMessage);
064          }
065        });
066      }
067    
068      public <MODEL extends Model> void findAll(final Query<MODEL> query, final ListCallback<MODEL> callback) {
069        JsonUtils.requestJson(getUrl(query), new JsonUtils.JSONHandler() {
070          public void onResponse(JavaScriptObject obj) {
071            Unmarshaller<MODEL> unmarshaller = Unmarshallers.forModel(query.getModelClass());
072            callback.onResponse(unmarshaller.toModels(obj), obj);
073          }
074    
075          public void onTimeout() {
076            callback.onTimeout();
077          }
078    
079          public void onError(int errorCode, String errorMessage) {
080            callback.onError(errorCode, errorMessage);
081          }
082        });
083      }
084    
085      private String getUrl(Query query) {
086        return host + query.getUrl();
087      }
088    }