public class GetForecast {
public static void runExample(DfpServices dfpServices, DfpSession session)
throws Exception {
// Get the ForecastService.
ForecastServiceInterface forecastService =
dfpServices.get(session, ForecastServiceInterface.class);
// Get the NetworkService.
NetworkServiceInterface networkService =
dfpServices.get(session, NetworkServiceInterface.class);
// Get the root ad unit ID used to target the whole site.
String rootAdUnitId = networkService.getCurrentNetwork().getEffectiveRootAdUnitId();
// Create inventory targeting.
InventoryTargeting inventoryTargeting = new InventoryTargeting();
// Create ad unit targeting for the root ad unit.
AdUnitTargeting adUnitTargeting = new AdUnitTargeting();
adUnitTargeting.setAdUnitId(rootAdUnitId);
adUnitTargeting.setIncludeDescendants(true);
inventoryTargeting.setTargetedAdUnits(new AdUnitTargeting[] {adUnitTargeting});
// Create targeting.
Targeting targeting = new Targeting();
targeting.setInventoryTargeting(inventoryTargeting);
// Create a line item.
LineItem lineItem = new LineItem();
lineItem.setTargeting(targeting);
lineItem.setLineItemType(LineItemType.SPONSORSHIP);
// Set the roadblocking type.
lineItem.setRoadblockingType(RoadblockingType.ONE_OR_MORE);
// Set the creative rotation type.
lineItem.setCreativeRotationType(CreativeRotationType.OPTIMIZED);
// Create creative placeholder size.
Size size = new Size();
size.setWidth(300);
size.setHeight(250);
size.setIsAspectRatio(false);
// Create the creative placeholder.
CreativePlaceholder creativePlaceholder = new CreativePlaceholder();
creativePlaceholder.setSize(size);
// Set the size of creatives that can be associated with this line item.
lineItem.setCreativePlaceholders(new CreativePlaceholder[] {creativePlaceholder});
// Set the length of the line item to run.
lineItem.setStartDateTimeType(StartDateTimeType.IMMEDIATELY);
lineItem.setEndDateTime(
DateTimes.toDateTime(Instant.now().plus(Duration.standardDays(30L)), "America/New_York"));
// Set the cost type.
lineItem.setCostType(CostType.CPM);
// Set the line item to use 50% of the impressions.
lineItem.setUnitType(UnitType.IMPRESSIONS);
lineItem.setUnitsBought(50L);
// Get forecast for line item.
Forecast forecast = forecastService.getForecast(lineItem);
long matched = forecast.getMatchedUnits();
double availablePercent = (forecast.getAvailableUnits() / (matched * 1.0)) * 100;
String unitType = forecast.getUnitType().toString().toLowerCase();