import com.crystaldecisions.sdk.framework.*
import="com.crystaldecisions.sdk.exception.SDKException
import="com.crystaldecisions.sdk.occa.infostore.*
import com.businessobjects.rebean.wi.*

boolean loginSuccessful = false;
IEnterpriseSession oEnterpriseSession = null;

String username = "Administrator";
String password = "MyPassword";
String cmsname  = "localhost";
String authenticationType = "secEnterprise";

try {
	//Log in.
	oEnterpriseSession = CrystalEnterprise.getSessionMgr().logon( username, password, cmsname,authenticationType);
	if (oEnterpriseSession == null) {

	} else {
		loginSuccessful = true;
	}
} catch (SDKException sdkEx) {

}

if (loginSuccessful) {
	IInfoObject oInfoObject = null;

	String docname = "TestWebi";

	//Grab the InfoStore from the httpsession
	IInfoStore oInfoStore = (IInfoStore) oEnterpriseSession.getService("", "InfoStore");

	//Query for the report object in the CMS.  See the Developer Reference guide for more information the query language.
	String query = "SELECT TOP 1 * " +"FROM CI_INFOOBJECTS " + "WHERE SI_INSTANCE = 0 And SI_Kind = 'Webi' " +"AND SI_NAME='" + docname + "'";

	IInfoObjects oInfoObjects = (IInfoObjects) oInfoStore.query(query);

	if (oInfoObjects.size() > 0) {
		//Retrieve the latest instance of the report
		oInfoObject = (IInfoObject) oInfoObjects.get(0);

		// Initialize the Report Engine
		ReportEngines oReportEngines = (ReportEngines) oEnterpriseSession.getService("ReportEngines");
		ReportEngine oReportEngine = (ReportEngine) oReportEngines.getService(ReportEngines.ReportEngineType.WI_REPORT_ENGINE);

		// Openning the document
		DocumentInstance oDocumentInstance = oReportEngine.openDocument(oInfoObject.getID());

		DataProvider oDataProvider = null;

		//Loop through dataproviders and purge data
		for (int i=0; i<oDocumentInstance.getDataProviders().getCount(); i++) {
			oDataProvider = oDocumentInstance.getDataProviders().getItem(i);

			oDataProvider.purge();

			// This option purges data as well as reset prompt values used during last refresh
			//oDataProvider.purge(true);

		}

		oDocumentInstance.save();

		oDocumentInstance.closeDocument();
	}

	oEnterpriseSession.logoff();
}