/*
Copyright 2003-2012 Dmitry Barashev, GanttProject Team
This file is part of GanttProject, an opensource project management tool.
GanttProject is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GanttProject is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GanttProject. If not, see <http://www.gnu.org/licenses/>.
*/
package biz.ganttproject.core.time;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by IntelliJ IDEA.
*
* @author bard Date: 01.02.2004
*/
public class TimeUnitGraph {
private Map<TimeUnit, List<Composition>> myUnit2compositions = new HashMap<TimeUnit, List<Composition>>();
public TimeUnit createAtomTimeUnit(String name) {
TimeUnit result = new TimeUnitImpl(name, this, null);
List<Composition> compositions = new ArrayList<Composition>();
compositions.add(new Composition(result, 1));
myUnit2compositions.put(result, compositions);
return result;
}
TimeUnit createTimeUnit(String name, TimeUnit atomUnit, int count) {
TimeUnit result = new TimeUnitImpl(name, this, atomUnit);
registerTimeUnit(result, count);
return result;
}
public TimeUnit createDateFrameableTimeUnit(String name, TimeUnit atomUnit, int atomCount, DateFrameable framer) {
TimeUnit result = new TimeUnitDateFrameableImpl(name, this, atomUnit, framer);
registerTimeUnit(result, atomCount);
return result;
}
public TimeUnitFunctionOfDate createTimeUnitFunctionOfDate(String name, TimeUnit atomUnit, DateFrameable framer) {
TimeUnitFunctionOfDate result;
result = new TimeUnitFunctionOfDateImpl(name, this, atomUnit, framer);
registerTimeUnit(result, -1);
return result;
}
private void registerTimeUnit(TimeUnit unit, int atomCount) {
TimeUnit atomUnit = unit.getDirectAtomUnit();
List<Composition> transitiveCompositions = myUnit2compositions.get(atomUnit);
if (transitiveCompositions == null) {
throw new RuntimeException("Atom unit=" + atomUnit + " is unknown");
}
List<Composition> compositions = new ArrayList<Composition>(transitiveCompositions.size() + 1);
compositions.add(new Composition(unit, 1));
for (int i = 0; i < transitiveCompositions.size(); i++) {
Composition nextTransitive = transitiveCompositions.get(i);
compositions.add(new Composition(nextTransitive, atomCount));
}
myUnit2compositions.put(unit, compositions);
}
public Composition getComposition(TimeUnitImpl timeUnit, TimeUnit atomUnit) {
Composition result = null;
List<Composition> compositions = myUnit2compositions.get(timeUnit);
if (compositions == null) {
throw new RuntimeException("Unit=" + timeUnit + " has no compositions");
}
for (int i = 0; i < compositions.size(); i++) {
Composition next = compositions.get(i);
if (next.myAtom.equals(atomUnit)) {
result = next;
break;
}
}
return result;
}
class Composition {
final TimeUnit myAtom;
final int myAtomCount;
Composition(TimeUnit atomUnit, int atomCount) {
myAtom = atomUnit;
myAtomCount = atomCount;
}
Composition(Composition transitiveComposition, int atomCount) {
myAtomCount = atomCount * transitiveComposition.myAtomCount;
myAtom = transitiveComposition.myAtom;
}
int getAtomCount() {
return myAtomCount;
}
}
}