com.helger.datetime.period.DateTimePeriod.java Source code

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Here is the source code for com.helger.datetime.period.DateTimePeriod.java

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/**
 * Copyright (C) 2014-2015 Philip Helger (www.helger.com)
 * philip[at]helger[dot]com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.helger.datetime.period;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;

import org.joda.time.DateTime;
import org.joda.time.Interval;
import org.joda.time.Period;

import com.helger.datetime.PDTFactory;

/**
 * Default implementation of the {@link IDateTimePeriod} interface.
 * 
 * @author Philip Helger
 */
@NotThreadSafe
public class DateTimePeriod extends AbstractFlexiblePeriod<DateTime> implements IDateTimePeriod {
    public DateTimePeriod() {
        this(null, null);
    }

    public DateTimePeriod(@Nullable final DateTime aStart) {
        this(aStart, null);
    }

    public DateTimePeriod(@Nullable final DateTime aStart, @Nullable final DateTime aEnd) {
        super(aStart, aEnd);
    }

    public final boolean isValidFor(@Nonnull final DateTime aDate) {
        if (aDate == null)
            throw new NullPointerException("date");

        final DateTime aStart = getStart();
        if (aStart != null && aStart.isAfter(aDate))
            return false;
        final DateTime aEnd = getEnd();
        if (aEnd != null && aEnd.isBefore(aDate))
            return false;
        return true;
    }

    public final boolean isValidForNow() {
        return isValidFor(PDTFactory.getCurrentDateTime());
    }

    public boolean canConvertToPeriod() {
        return getStart() != null && getEnd() != null;
    }

    @Nonnull
    public final Period getAsPeriod() {
        if (!canConvertToPeriod())
            throw new IllegalStateException("Cannot convert to a Period!");
        return new Period(getStart(), getEnd());
    }

    public boolean canConvertToInterval() {
        return getStart() != null && getEnd() != null;
    }

    @Nonnull
    public Interval getAsInterval() {
        if (!canConvertToInterval())
            throw new IllegalStateException("Cannot convert to an Interval!");
        return new Interval(getStart(), getEnd());
    }
}