workspace-tree-widget/src/main/java/org/gcube/portlets/user/workspace/client/util/RequestBuilderWorkspaceVali...

123 lines
3.8 KiB
Java

/**
*
*/
package org.gcube.portlets.user.workspace.client.util;
import org.gcube.portlets.user.workspace.client.AppControllerExplorer;
import org.gcube.portlets.user.workspace.client.ConstantsExplorer;
import org.gcube.portlets.user.workspace.client.event.SessionExpiredEvent;
import org.gcube.portlets.user.workspace.client.view.windows.InfoDisplayMessage;
import org.gcube.portlets.user.workspace.client.view.windows.MessageBoxAlert;
import org.gcube.portlets.user.workspace.client.view.windows.NewBrowserWindow;
import org.gcube.portlets.user.workspace.shared.SessionExpiredException;
import com.google.gwt.core.client.GWT;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.user.client.rpc.AsyncCallback;
/**
* @author Francesco Mangiacrapa francesco.mangiacrapa{@literal @}isti.cnr.it
* Jun 24, 2013
*
*/
public class RequestBuilderWorkspaceValidateItem {
/**
*
*/
protected static final int TIME_INFO_DISPLAY = 1500; //milliseconds
private AsyncCallback<WindowOpenParameter> callback;
private String httpQueryString;
public RequestBuilderWorkspaceValidateItem(RequestBuilder.Method method, String servletName, final String params, final String targetWindow, final AsyncCallback<WindowOpenParameter> callback) throws Exception{
this.callback = callback;
final NewBrowserWindow newBrowserWindow = NewBrowserWindow.open("", targetWindow, "");
this.httpQueryString = params;
if(servletName==null)
return;
servletName = servletName.isEmpty()?"/":servletName;
if(!servletName.contains("/"))
servletName+="/"+servletName;
if(httpQueryString==null)
httpQueryString = ConstantsExplorer.VALIDATEITEM+"=true";
else
httpQueryString +="&"+ConstantsExplorer.VALIDATEITEM+"=true";
String urlRequest = servletName+"?"+httpQueryString;
GWT.log("request builder for: "+urlRequest);
RequestBuilder requestBuilder = new RequestBuilder(method, urlRequest);
//requestBuilder = GCubeClientContext.injectContext(requestBuilder);
new InfoDisplayMessage("Download", "Requesting...", TIME_INFO_DISPLAY);
try {
requestBuilder.sendRequest("", new RequestCallback() {
@Override
public void onResponseReceived(Request request, Response response) {
int status = response.getStatusCode();
// System.out.println("status code is "+status);
if(!(status==200) && !(status==202)){ //NOT IS STATUS SC_ACCEPTED
if(status==401){ // SC_UNAUTHORIZED = 401;
GWT.log("Session expired");
AppControllerExplorer.getEventBus().fireEvent(new SessionExpiredEvent());
return;
}
newBrowserWindow.close();
handleError("Sorry, an error occurred on retriving the file. "+response.getText()); //ERROR STATUS
}else { //OK STATUS
if(callback!=null)
callback.onSuccess(new WindowOpenParameter(targetWindow, "", params, true, newBrowserWindow));
}
}
@Override
public void onError(Request request, Throwable exception) {
newBrowserWindow.close();
if(exception instanceof SessionExpiredException){
GWT.log("Session expired");
AppControllerExplorer.getEventBus().fireEvent(new SessionExpiredEvent());
return;
}
// System.out.println("exception message is "+exception.getMessage());
handleError(exception.getMessage());
}
});
} catch (RequestException e) {
newBrowserWindow.close();
throw new Exception("Sorry, an error occurred while contacting server, try again");
}
}
public void handleError(String message){
if(callback!=null)
callback.onFailure(new Exception(message));
else
new MessageBoxAlert("Error", message, null);
}
}