132 lines
3.5 KiB
Java
132 lines
3.5 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.sdmxexportwizardtd.client.progress;
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import java.util.ArrayList;
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import org.gcube.portlets.user.sdmxexportwizardtd.client.rpc.SDMXExportWizardServiceAsync;
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import org.gcube.portlets.user.sdmxexportwizardtd.shared.ExportMonitor;
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import org.gcube.portlets.user.td.gxtservice.shared.TRId;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.user.client.Timer;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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/**
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* This {@link Timer} retrieves {@link OperationProgress} from the specified {@link OperationProgressSource} with the scheduled interval.
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* The retrieved information are spread to the subscribed {@link OperationProgressListener}.
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*
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* @author "Giancarlo Panichi"
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* <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class OperationProgressUpdater extends Timer {
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protected ArrayList<OperationProgressListener> listeners = new ArrayList<OperationProgressListener>();
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/**
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* {@inheritDoc}
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*/
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@Override
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public void run() {
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Log.debug("requesting operation progress");
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SDMXExportWizardServiceAsync.INSTANCE.getExportMonitor(new AsyncCallback<ExportMonitor>() {
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@Override
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public void onFailure(Throwable caught) {
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cancel();
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Log.error("Error retrieving the operation state", caught);
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String message = getStack(caught);
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fireOperationFailed(caught, "Failed getting operation updates", message);
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}
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@Override
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public void onSuccess(ExportMonitor result) {
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Log.info("retrieved ImportMonitor: "+result.getStatus());
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switch (result.getStatus()) {
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case WAITING:
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break;
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case INITIALIZING:
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fireOperationInitializing();
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break;
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case IN_PROGRESS:
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fireOperationUpdate(result.getProgress());
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break;
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case FAILED:
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cancel();
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fireOperationFailed(result.getError(),"Failed Client Library Import", result.getStatusDescription());
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break;
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case SUCCEDED:
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cancel();
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Log.info("Import fisnish TableId :"+result.getTrId());
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fireOperationComplete(result.getTrId());
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break;
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case ABORTED:
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cancel();
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break;
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default:
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break;
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}
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}
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});
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}
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protected String getStack(Throwable e)
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{
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String message = e.getLocalizedMessage()+" -> <br>";
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Throwable c = e.getCause();
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if (c!=null) message += getStack(c);
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return message;
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}
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protected void fireOperationInitializing()
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{
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for (OperationProgressListener listener:listeners) listener.operationInitializing();
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}
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protected void fireOperationUpdate(float elaborated)
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{
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for (OperationProgressListener listener:listeners) listener.operationUpdate(elaborated);
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}
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protected void fireOperationComplete(TRId trId)
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{
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for (OperationProgressListener listener:listeners) listener.operationComplete(trId);
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}
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protected void fireOperationFailed(Throwable caught, String failure, String failureDetails)
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{
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for (OperationProgressListener listener:listeners) listener.operationFailed(caught, failure, failureDetails);
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}
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/**
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* Add a new {@link OperationProgressListener} to this {@link OperationProgressUpdater}.
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* @param listener the listener to add.
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*/
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public void addListener(OperationProgressListener listener)
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{
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listeners.add(listener);
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}
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/**
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* Removes the specified {@link OperationProgressListener} from this {@link OperationProgressUpdater}.
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* @param listener the listener to remove.
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*/
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public void removeListener(OperationProgressListener listener)
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{
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listeners.remove(listener);
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}
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}
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