Examples of org.zkoss.ganttz.data.GanttDate$Cases

org.zkoss.ganttz.data.GanttDate
It's a special purpose date type for ganttzk library. Since ganttzk could be used by several implementations it must have freedom to allow different underlying implementations.

There are two base cases:
- the {@link LocalDateBased} one that is basically a LocalDate date. It'snormally used to receive values from interface. For example when moving a Task a {@link LocalDateBased} date is generated with the position the taskhas been moved.
- the {@link CustomDate}. This is one intended to be overridden by the user of ganttzk.
These base cases are used as a basis for a form of degenerate pattern matching in {@link #byCases(ICases)}, resembling the visitor pattern. This scheme allows ganttzk to work with both kinds of dates and perform different operations depending on the type.

Please note that ganttzk is intended to work with only one type of {@link CustomDate} at the same time. It's a bad idea to mix several types ofCustomDate.
@author Óscar González Fernández

            LocalDate start, int durationDays, LocalDate date) {
        ITaskFundamentalProperties result = createNiceMock(ITaskFundamentalProperties.class);
        expect(result.getBeginDate()).andReturn(toDate(start)).anyTimes();
        expect(result.getEndDate()).andReturn(
                toDate(start.plusDays(durationDays))).anyTimes();
        GanttDate ganttDate = GanttDate.createFrom(date);
        Constraint<GanttDate> constraint = biggerOrEqualThan(ganttDate);
        expect(result.getStartConstraints()).andReturn(
                Arrays.asList(constraint)).anyTimes();


        replay(result);

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        ITaskFundamentalProperties result = createNiceMock(ITaskFundamentalProperties.class);
        expect(result.getBeginDate()).andReturn(toDate(start)).anyTimes();
        expect(result.getEndDate()).andReturn(
                toDate(start.plusDays(durationDays))).anyTimes();


        GanttDate ganttDate = GanttDate.createFrom(date);
        Constraint<GanttDate> constraint = ConstraintOnComparableValues
                .equalTo(ganttDate);
        expect(result.getStartConstraints()).andReturn(
                Arrays.asList(constraint)).anyTimes();

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                && task.canBeExplicitlyMoved();
    }




    void doUpdatePosition(int leftX, int topY) {
        GanttDate startBeforeMoving = this.task.getBeginDate();
        final LocalDate newPosition = getMapper().toDate(leftX);
        this.task.doPositionModifications(new IModifications() {


            @Override
            public void doIt(IUpdatablePosition position) {

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    public String getType() {
        return this.type;
    }


    public static Interval getIntervalFrom(List<LoadTimeLine> timeLines) {
        GanttDate start = null;
        GanttDate end = null;
        for (LoadTimeLine loadTimeLine : timeLines) {
            if(!loadTimeLine.isEmpty()) {
                Validate.notNull(loadTimeLine.getStart());
                start = min(start, loadTimeLine.getStart());
                Validate.notNull(loadTimeLine.getEnd());
                end = max(end, loadTimeLine.getEnd());
            }
        }
        if (timeLines.isEmpty() || start == null || end == null) {
            LocalDate localDateNow = new LocalDate();
            return new Interval(localDateNow, localDateNow.plusYears(5));
        }
        return new Interval(start.toLocalDate(), end.asExclusiveEnd());
    }

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        }
        return result;
    }


    public GanttDate getStart() {
        GanttDate result = getStartPeriod();
        for (LoadTimeLine loadTimeLine : getChildren()) {
            GanttDate start = loadTimeLine.getStart();
            if (start != null) {
                result = result == null || result.compareTo(start) > 0 ? start
                        : result;
            }
        }

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        }
        return result;
    }


    public GanttDate getEnd() {
        GanttDate result = getEndPeriod();
        for (LoadTimeLine loadTimeLine : getChildren()) {
            GanttDate end = loadTimeLine.getEnd();
            if (end != null) {
                result = result == null || result.compareTo(end) < 0 ? end
                        : result;
            }
        }

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    private LocalDate calculateInitDate() {
        if (graph.getTasks().isEmpty()) {
            return null;
        }
        GanttDate ganttDate = Collections.min(getStartDates());
        return LocalDate.fromDateFields(ganttDate.toDayRoundedDate());
    }

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    }


    private void setEarliestStart(Node<T, D> node, int earliestStart,
            Constraint<GanttDate> constraint) {
        if (constraint != null) {
            GanttDate date = GanttDate.createFrom(initDate
                    .plusDays(earliestStart));
            date = constraint.applyTo(date);
            earliestStart = Days.daysBetween(initDate,
                    LocalDate.fromDateFields(date.toDayRoundedDate()))
                    .getDays();
        }
        node.setEarliestStart(earliestStart);
    }

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    private void setLatestFinish(Node<T, D> node, int latestFinish,
            Constraint<GanttDate> constraint) {
        if (constraint != null) {
            int duration = node.getDuration();
            GanttDate date = GanttDate.createFrom(initDate.plusDays(latestFinish - duration));
            date = constraint.applyTo(date);
            int daysBetween = Days.daysBetween(initDate,
                    LocalDate.fromDateFields(date.toDayRoundedDate()))
                    .getDays();
            latestFinish = daysBetween + duration;
        }
        node.setLatestFinish(latestFinish);
    }

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            Date startDateFilter, Date endDateFilter) {
        List<LoadPeriod> list = new PeriodsBuilder(factory, sortedByStartDate).buildPeriods();
        List<LoadPeriod> toReturn = new ArrayList<LoadPeriod>();
        for (LoadPeriod loadPeriod : list) {


            final GanttDate finalStartDate;
            if (startDateFilter != null) {
                finalStartDate = GanttDate.max(GanttDate
                        .createFrom(new LocalDate(startDateFilter.getTime())),
                        loadPeriod.getStart());
            } else {
                finalStartDate = loadPeriod.getStart();
            }


            final GanttDate finalEndDate;
            if (endDateFilter != null) {
                finalEndDate = GanttDate.min(loadPeriod.getEnd(), GanttDate
                        .createFrom(new LocalDate(endDateFilter.getTime())));
            } else {
                finalEndDate = loadPeriod.getEnd();

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