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package bjc.esodata;
import java.util.*;
import java.util.function.Consumer;
/**
* A default implementation of {@link Spooler} that handles spools in a FIFO manner
* @author bjcul
*
* @param <T> The type contained in the spools.
*/
public class DefaultSpooler<T> implements Spooler<T> {
private Queue<Spool<T>> spools;
/**
* Create a new default spooler.
*/
public DefaultSpooler() {
this.spools = new ArrayDeque<>();
}
@Override
public void registerSpool(Spool<T> spool) {
spools.add(spool);
}
@Override
public Consumer<T> getInput() {
Spool<T> spool = new DefaultSpool<>();
registerSpool(spool);
return spool.getInput();
}
@Override
public Iterator<T> getOutput() {
return spools.remove().getOutput();
}
@Override
public Spool<T> getSpool() {
return spools.remove();
}
}
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