package net.sourceforge.fenixedu.presentationTier.renderers.providers;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.presentationTier.renderers.converters.DomainObjectKeyConverter;

import org.apache.commons.collections.comparators.ReverseComparator;

import pt.ist.fenixWebFramework.renderers.DataProvider;
import pt.ist.fenixWebFramework.renderers.components.converters.Converter;

public class ExecutionYearsProvider implements DataProvider {

    public Object provide(Object source, Object currentValue) {

	final List<ExecutionYear> executionYears = new ArrayList<ExecutionYear>(RootDomainObject.getInstance()
		.getExecutionYears());

	Collections.sort(executionYears, new ReverseComparator());

	return executionYears;
    }

    public Converter getConverter() {
	return new DomainObjectKeyConverter();
    }

}