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OpenCms is an enterprise-ready, easy to use website content management system based on Java and XML technology. Offering a complete set of features, OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

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/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
 *
 * This library 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.
 *
 * This library 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.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.ugc.client;

import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;

/**
 * Helper class to execute an RPC call with a custom callback to enable/disable the wait animation.

*/ public class CmsRpcCallHelper { /** Counter to keep track of running requests. */ private CmsRequestCounter m_requestCounter; /** * Creates a new instance.

* * @param counter the request counter to keep track of running requests */ public CmsRpcCallHelper(CmsRequestCounter counter) { m_requestCounter = counter; } /** * Executes the RPC call.

* * @param requestBuilder the request builder returned by the service interface */ @SuppressWarnings("synthetic-access") public void executeRpc(RequestBuilder requestBuilder) { final RequestCallback callback = requestBuilder.getCallback(); RequestCallback callbackWrapper = new RequestCallback() { public void onError(com.google.gwt.http.client.Request request, Throwable exception) { m_requestCounter.decrement(); callback.onError(request, exception); } public void onResponseReceived( com.google.gwt.http.client.Request request, com.google.gwt.http.client.Response response) { m_requestCounter.decrement(); callback.onResponseReceived(request, response); } }; requestBuilder.setCallback(callbackWrapper); m_requestCounter.increment(); try { requestBuilder.send(); } catch (Exception e) { m_requestCounter.decrement(); } } }





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