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/*
 *  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.chrono;

import org.joda.time.Chronology;
import org.joda.time.DateTimeField;
import org.joda.time.DateTimeZone;
import org.joda.time.field.LenientDateTimeField;

/**
 * Wraps another Chronology, ensuring all the fields are lenient.
 * 

* LenientChronology is thread-safe and immutable. * * @author Brian S O'Neill * @since 1.0 * @see LenientDateTimeField * @see StrictChronology */ public final class LenientChronology extends AssembledChronology { /** Serialization lock */ private static final long serialVersionUID = -3148237568046877177L; /** * Create a LenientChronology for any chronology. * * @param base the chronology to wrap * @throws IllegalArgumentException if chronology is null */ public static LenientChronology getInstance(Chronology base) { if (base == null) { throw new IllegalArgumentException("Must supply a chronology"); } return new LenientChronology(base); } private transient Chronology iWithUTC; /** * Create a LenientChronology for any chronology. * * @param base the chronology to wrap */ private LenientChronology(Chronology base) { super(base, null); } public Chronology withUTC() { if (iWithUTC == null) { if (getZone() == DateTimeZone.UTC) { iWithUTC = this; } else { iWithUTC = LenientChronology.getInstance(getBase().withUTC()); } } return iWithUTC; } public Chronology withZone(DateTimeZone zone) { if (zone == null) { zone = DateTimeZone.getDefault(); } if (zone == DateTimeZone.UTC) { return withUTC(); } if (zone == getZone()) { return this; } return LenientChronology.getInstance(getBase().withZone(zone)); } protected void assemble(Fields fields) { fields.year = convertField(fields.year); fields.yearOfEra = convertField(fields.yearOfEra); fields.yearOfCentury = convertField(fields.yearOfCentury); fields.centuryOfEra = convertField(fields.centuryOfEra); fields.era = convertField(fields.era); fields.dayOfWeek = convertField(fields.dayOfWeek); fields.dayOfMonth = convertField(fields.dayOfMonth); fields.dayOfYear = convertField(fields.dayOfYear); fields.monthOfYear = convertField(fields.monthOfYear); fields.weekOfWeekyear = convertField(fields.weekOfWeekyear); fields.weekyear = convertField(fields.weekyear); fields.weekyearOfCentury = convertField(fields.weekyearOfCentury); fields.millisOfSecond = convertField(fields.millisOfSecond); fields.millisOfDay = convertField(fields.millisOfDay); fields.secondOfMinute = convertField(fields.secondOfMinute); fields.secondOfDay = convertField(fields.secondOfDay); fields.minuteOfHour = convertField(fields.minuteOfHour); fields.minuteOfDay = convertField(fields.minuteOfDay); fields.hourOfDay = convertField(fields.hourOfDay); fields.hourOfHalfday = convertField(fields.hourOfHalfday); fields.clockhourOfDay = convertField(fields.clockhourOfDay); fields.clockhourOfHalfday = convertField(fields.clockhourOfHalfday); fields.halfdayOfDay = convertField(fields.halfdayOfDay); } private final DateTimeField convertField(DateTimeField field) { return LenientDateTimeField.getInstance(field, getBase()); } //----------------------------------------------------------------------- /** * A lenient chronology is only equal to a lenient chronology with the * same base chronology. * * @param obj the object to compare to * @return true if equal * @since 1.4 */ public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof LenientChronology == false) { return false; } LenientChronology chrono = (LenientChronology) obj; return getBase().equals(chrono.getBase()); } /** * A suitable hashcode for the chronology. * * @return the hashcode * @since 1.4 */ public int hashCode() { return 236548278 + getBase().hashCode() * 7; } /** * A debugging string for the chronology. * * @return the debugging string */ public String toString() { return "LenientChronology[" + getBase().toString() + ']'; } }





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