/*
* Copyright 2007, Jon Crosby. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.kaboomerang.gwt.rest.client.callback;
import com.kaboomerang.gwt.rest.client.handler.ResourceResponseHandler;
import com.kaboomerang.gwt.rest.client.resource.Resource;
import com.kaboomerang.gwt.rest.client.resource.ResourceFactory;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.Response;
/**
* Implements GWT's RequestCallback interface, passing a Resource for successful
* requests or an error for failed requests to a ResourceResponseHandler.
*
* @author Jon Crosby
*/
public class ResourceResponseCallback
extends AbstractResponseCallback implements RequestCallback {
/** Used to create a resource */
protected ResourceFactory factory;
/** The ResourceResponseHandler that will process the onSuccess or onError conditions */
protected ResourceResponseHandler callback;
public ResourceResponseCallback(ResourceFactory factory, ResourceResponseHandler handler) {
this.factory = factory;
this.callback = handler;
}
/** Callback for GWT's request builder upon receiving a response. */
public void onResponseReceived(Request request, Response response) {
if (response.getStatusCode() != expectedResponseCode) {
onError(request, null);
} else {
Resource resource = factory.create();
resource.populateFromRepresentation(response.getText());
callback.onSuccess(resource);
}
}
/** Callback for GWT's request builder upon encountering an error condition */
public void onError(Request request, Throwable exception) {
callback.onError(request, exception);
}
}