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 */
020package org.sonar.wsclient.gwt;
021
022import com.google.gwt.core.client.JavaScriptObject;
023import com.google.gwt.user.client.ui.Widget;
024import org.sonar.wsclient.services.Model;
025
026import java.util.List;
027
028public abstract class AbstractListCallback<MODEL extends Model> implements ListCallback<MODEL> {
029
030  private Widget loadingWidget = null;
031
032  protected AbstractListCallback(Widget loadingWidget) {
033    this.loadingWidget = loadingWidget;
034  }
035
036  protected AbstractListCallback() {
037  }
038
039  public void onResponse(List<MODEL> result, JavaScriptObject json) {
040    hideLoadingWidget();
041    doOnResponse(result);
042  }
043
044  protected abstract void doOnResponse(List<MODEL> result);
045
046  public final void onTimeout() {
047    doOnTimeout();
048    hideLoadingWidget();
049  }
050
051  public final void onError(int errorCode, String errorMessage) {
052    doOnError(errorCode, errorMessage);
053    hideLoadingWidget();
054  }
055
056  protected void doOnError(int errorCode, String errorMessage) {
057
058  }
059
060  protected void doOnTimeout() {
061
062  }
063
064  private void hideLoadingWidget() {
065    if (loadingWidget != null) {
066      loadingWidget.removeFromParent();
067    }
068  }
069}