public static void main(String[] args) {
Closure discount =
new Closure() {
int count = 0;
public int getCount() {
return count;
}
public void execute(Object input) {
count++;
Product product = (Product) input;
product.setPrice(product.getPrice() * 0.9);
System.out.println(count);
}
};
Product shoes = new Product();
shoes.setName("Fancy Shoes");
shoes.setPrice(120.00);
System.out.println("Shoes before discount:" + shoes.getPrice());
discount.execute(shoes);
System.out.println("Shoes after discount:" + shoes.getPrice());
discount.execute(shoes);
discount.execute(shoes);
System.out.println("after discount:" + shoes.getPrice());
}
/**
* Executes the true or false closure accoring to the result of the predicate.
*
* @param input the input object
*/
public void execute(Object input) {
if (iPredicate.evaluate(input) == true) {
iTrueClosure.execute(input);
} else {
iFalseClosure.execute(input);
}
}
public void notifyOf(Producer<? extends Iteration<ValuePointListTelemetryColored>> producer) {
Iteration<ValuePointListTelemetryColored> i = producer.getValue();
if (i != null && i.getValue() != null) {
datasetRecreation.execute(i.getValue().getValue());
}
}
/**
* Utility method to perform action for all pending CrawlURI instances.
*
* @param c Closure action to perform
* @throws DatabaseException
*/
protected void forAllPendingDo(Closure c) throws DatabaseException {
DatabaseEntry key = new DatabaseEntry();
DatabaseEntry value = new DatabaseEntry();
Cursor cursor = pendingUrisDB.openCursor(null, null);
while (cursor.getNext(key, value, null) == OperationStatus.SUCCESS) {
if (value.getData().length == 0) {
continue;
}
CrawlURI item = (CrawlURI) crawlUriBinding.entryToObject(value);
c.execute(item);
}
cursor.close();
}
private static void runVolumeCommand(Closure closure) {
Mixer.Info[] infos = AudioSystem.getMixerInfo();
for (Mixer.Info info : infos) {
Mixer mixer = AudioSystem.getMixer(info);
if (mixer.isLineSupported(Port.Info.SPEAKER)) {
Port port;
try {
port = (Port) mixer.getLine(Port.Info.SPEAKER);
port.open();
if (port.isControlSupported(FloatControl.Type.VOLUME)) {
FloatControl volume = (FloatControl) port.getControl(FloatControl.Type.VOLUME);
closure.execute(volume);
}
port.close();
} catch (LineUnavailableException e) {
logger.error("Cannot access master volume control", e);
}
}
}
}
/**
* Transforms the input to result by executing a closure.
*
* @param input the input object to transform
* @return the transformed result
*/
public Object transform(Object input) {
iClosure.execute(input);
return input;
}
void notifyListeners(Commontags commontag) {
for (Closure listener : listeners) {
listener.execute(commontag);
}
}
@Override
public void dispose() {
actionBlock.execute(handover);
super.dispose();
}
