ApplicationScope.java

import java.util.function.Consumer;
import java.util.function.Supplier;


public class ApplicationScope 
{
	private volatile String value;

	private final Supplier<String> supplier;

	public ApplicationScope()
	{
		this.supplier = null;
	}

	public ApplicationScope(Supplier<String> supplier)
	{
		this.supplier = supplier;
	}

	public void didCreate(String value){
		this.value = value;
	}
	
	public void acceptValue(Consumer<String> consumer)
	{
		if(this.value == null){
			throw new RuntimeException("Program execution is wrong!");
		}
		
		consumer.accept(this.value);
	}

	public void acceptSuppliedValue(Consumer<String> consumer)
	{
		String value = this.supplier.get();
		if(value == null){
			throw new RuntimeException("Program execution is wrong!");
		}
		
		consumer.accept(value);
	}
}