import org.vcssl.connect.ConnectorPermissionName;
import org.vcssl.connect.ConnectorPermissionValue;
import java.util.Map;
import java.util.HashMap;
...

( in the method using Vnano Engine )

// Create a Map for storing permission names/values (permission map).
Map<String, String> permissionMap = new HashMap<String, String>();

// Set the default value to "DENY".
// (Applied for permission items which are not set explicitly.)
permissionMap.put(ConnectorPermissionName.DEFAULT, ConnectorPermissionValue.DENY);

// Set file-creation / writing (excluding overwriting) / reading to "ALLOW".
permissionMap.put(ConnectorPermissionName.FILE_CREATE, ConnectorPermissionValue.ALLOW);
permissionMap.put(ConnectorPermissionName.FILE_WRITE, ConnectorPermissionValue.ALLOW);
permissionMap.put(ConnectorPermissionName.FILE_READ, ConnectorPermissionValue.ALLOW);

// Set file-overwriting to "ASK", for asking users to decide whether allow/deny it.
permissionMap.put(ConnectorPermissionName.FILE_OVERWRITE, ConnectorPermissionValue.ASK);

// Set to the instance of Vnano Engine.
try {
	engine.setPermissionMap(permissionMap);
} catch (VnanoException e) {
	System.err.println("Incorrect permission settings have been detected.");
	e.printStackTrace();
}