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128 lines
3.5 KiB
Java

/**
*
*/
package org.gcube.portlets.user.td.codelistmappingimportwidget.client.progress;
import java.util.ArrayList;
import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
import org.gcube.portlets.user.td.gwtservice.shared.file.FileUploadMonitor;
import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.rpc.AsyncCallback;
/**
* This {@link Timer} retrieves {@link OperationProgress} from the specified {@link OperationProgressSource} with the scheduled interval.
* The retrieved information are spread to the subscribed {@link CodelistMappingImportProgressListener}.
*
* @author "Giancarlo Panichi"
* <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
*
*/
public class FileUploadProgressUpdater extends Timer {
protected ArrayList<FileUploadProgressListener> listeners = new ArrayList<FileUploadProgressListener>();
/**
* {@inheritDoc}
*/
@Override
public void run() {
Log.debug("requesting operation progress");
TDGWTServiceAsync.INSTANCE.getFileUploadMonitor(new AsyncCallback<FileUploadMonitor>() {
public void onFailure(Throwable caught) {
cancel();
Log.error("Error retrieving the operation state", caught);
String message = getStack(caught);
fireOperationFailed(caught, "Failed getting operation updates", message);
}
public void onSuccess(FileUploadMonitor result) {
Log.info("retrieved FileUploadMonitor: "+result.getState());
switch (result.getState()) {
case STARTED:
Log.debug("File Upload Started");
break;
case INPROGRESS:
Log.debug("Progress: "+result.getElaboratedLenght()+" of "+result.getTotalLenght());
fireOperationUpdate(result.getPercentDone());
break;
case FAILED:
Log.debug("File Upload Failed");
cancel();
fireOperationFailed(new Throwable("Failed Client Library Import") ,result.getFailureReason(), result.getFailureDetails());
break;
case COMPLETED:
cancel();
Log.debug("File Upload Completed");
fireOperationComplete();
break;
default:
break;
}
}
});
}
protected String getStack(Throwable e)
{
String message = e.getLocalizedMessage()+" -> <br>";
Throwable c = e.getCause();
if (c!=null) message += getStack(c);
return message;
}
protected void fireOperationInitializing()
{
for (FileUploadProgressListener listener:listeners) listener.operationInitializing();
}
protected void fireOperationUpdate(float elaborated)
{
for (FileUploadProgressListener listener:listeners) listener.operationUpdate(elaborated);
}
protected void fireOperationComplete()
{
for (FileUploadProgressListener listener:listeners) listener.operationComplete();
}
protected void fireOperationFailed(Throwable caught, String failure, String failureDetails)
{
for (FileUploadProgressListener listener:listeners) listener.operationFailed(caught, failure, failureDetails);
}
/**
* Add a new {@link CodelistMappingImportProgressListener} to this {@link FileUploadProgressUpdater}.
* @param listener the listener to add.
*/
public void addListener(FileUploadProgressListener listener)
{
listeners.add(listener);
}
/**
* Removes the specified {@link CodelistMappingImportProgressListener} from this {@link FileUploadProgressUpdater}.
* @param listener the listener to remove.
*/
public void removeListener(FileUploadProgressListener listener)
{
listeners.remove(listener);
}
}