Call back for file download not being called

[dbscott525]

smartgwt.version=3.1-p20130620

I am using the DSRequest class to download a file. I can successfully download a file.

However, I would like to get informed on the client side when the download is complete.

Here is the code I'm using on the client:

/**
 * Set up the request to download
 */
DataSource dataSource = DataSource.get("download");
DSRequest dsRequest = new DSRequest();
dsRequest.setOperationId("downloadClassificationResults");
dsRequest.setDownloadResult(true);
dsRequest.setDownloadToNewWindow(false);

/**
 * Create data source call back
 */
DSCallback dsCallBack = new DSCallback() {

	@Override
	public void execute(DSResponse response, Object rawData,
			DSRequest request) {
		ClientLogger.log(this, "call back from download");
	}
};

/**
 * download the results
 */
dataSource.fetchData(criteria, dsCallBack, dsRequest);

DSCallback.execute never gets called.

Here is the data source xml file:

<DataSource dbName="Mysql" tableName="download" ID="download"
	dataSourceVersion="1" generatedBy="v8.3p_2013-05-10/EVAL Deployment 2013-05-10"
	serverType="sql">

	<fields>
		<field primaryKey="true" name="ID" type="sequence"></field>
	</fields>

	<operationBindings>
		<binding operationId="download" operationType="fetch"
			serverMethod="downloadData">
			<serverObject lookupStyle="new"
				className="com.cedarcone.Orchestrate.server.samples.Downloader" />
		</binding>
		<binding operationId="downloadClassificationResults" operationType="fetch"
			serverMethod="downloadClassificationResults">
			<serverObject lookupStyle="new"
				className="com.cedarcone.Orchestrate.server.contactclassifier.ContactClassifier" />
		</binding>
	</operationBindings>
</DataSource>

[Isomorphic]

Callbacks don't fire for downloads - this is documented behavior.

It's very very difficult to get notification of download completion. It's usually best to arrange your application such that you don't require it.