/*
* Copyright 2001-2005 Stephen Colebourne
*
* 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 org.joda.time.convert;
import org.joda.time.Chronology;
import org.joda.time.DateTimeUtils;
import org.joda.time.ReadWritablePeriod;
import org.joda.time.ReadableDuration;
/**
* ReadableDurationConverter extracts milliseconds and chronology from a ReadableDuration.
*
* @author Stephen Colebourne
* @author Brian S O'Neill
* @since 1.0
*/
class ReadableDurationConverter extends AbstractConverter
implements DurationConverter, PeriodConverter {
/**
* Singleton instance.
*/
static final ReadableDurationConverter INSTANCE = new ReadableDurationConverter();
/**
* Restricted constructor.
*/
protected ReadableDurationConverter() {
super();
}
//-----------------------------------------------------------------------
/**
* Extracts the millis from an object of this convertor's type.
*
* @param object the object to convert, must not be null
* @return the millisecond value
* @throws NullPointerException if the object is null
* @throws ClassCastException if the object is an invalid type
* @throws IllegalArgumentException if the object is invalid
*/
public long getDurationMillis(Object object) {
return ((ReadableDuration) object).getMillis();
}
//-----------------------------------------------------------------------
/**
* Extracts duration values from an object of this converter's type, and
* sets them into the given ReadWritableDuration.
*
* @param writablePeriod period to get modified
* @param object the object to convert, must not be null
* @param chrono the chronology to use, must not be null
* @throws NullPointerException if the duration or object is null
* @throws ClassCastException if the object is an invalid type
* @throws IllegalArgumentException if the object is invalid
*/
public void setInto(ReadWritablePeriod writablePeriod, Object object, Chronology chrono) {
ReadableDuration dur = (ReadableDuration) object;
chrono = DateTimeUtils.getChronology(chrono);
long duration = dur.getMillis();
int[] values = chrono.get(writablePeriod, duration);
for (int i = 0; i < values.length; i++) {
writablePeriod.setValue(i, values[i]);
}
}
//-----------------------------------------------------------------------
/**
* Returns ReadableDuration.class.
*
* @return ReadableDuration.class
*/
public Class getSupportedType() {
return ReadableDuration.class;
}
}