001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020 package org.apache.isis.core.progmodel.facets.value.dateutil;
021
022 import java.util.Calendar;
023 import java.util.Date;
024
025 import org.apache.isis.applib.adapters.EncoderDecoder;
026 import org.apache.isis.applib.adapters.Parser;
027 import org.apache.isis.applib.clock.Clock;
028 import org.apache.isis.core.commons.config.IsisConfiguration;
029 import org.apache.isis.core.metamodel.facetapi.FacetHolder;
030 import org.apache.isis.core.progmodel.facets.object.value.ValueSemanticsProviderContext;
031 import org.apache.isis.core.progmodel.facets.value.DateAndTimeValueSemanticsProviderAbstract;
032 import org.apache.isis.core.progmodel.facets.value.datesql.JavaSqlDateValueSemanticsProvider;
033 import org.apache.isis.core.progmodel.facets.value.timesql.JavaSqlTimeValueSemanticsProvider;
034
035 /**
036 * An adapter that handles {@link java.util.Date} as both a date AND time component.
037 *
038 * @see JavaSqlDateValueSemanticsProvider
039 * @see JavaSqlTimeValueSemanticsProvider
040 */
041 public class JavaUtilDateValueSemanticsProvider extends DateAndTimeValueSemanticsProviderAbstract<java.util.Date> {
042
043 private static final boolean IMMUTABLE = false;
044 private static final boolean EQUAL_BY_CONTENT = false;
045
046 /**
047 * Required because implementation of {@link Parser} and {@link EncoderDecoder}.
048 */
049 public JavaUtilDateValueSemanticsProvider() {
050 this(null, null, null);
051 }
052
053 public JavaUtilDateValueSemanticsProvider(final FacetHolder holder, final IsisConfiguration configuration,
054 final ValueSemanticsProviderContext context) {
055 super(holder, Date.class, IMMUTABLE, EQUAL_BY_CONTENT, configuration, context);
056 }
057
058 @Override
059 protected Date dateValue(final Object value) {
060 return value == null ? null : (Date) value;
061 }
062
063 @Override
064 protected Date add(final Date original, final int years, final int months, final int days, final int hours,
065 final int minutes) {
066 final Date date = original;
067 final Calendar cal = Calendar.getInstance();
068 cal.setTime(date);
069 cal.set(Calendar.SECOND, 0);
070 cal.set(Calendar.MILLISECOND, 0);
071
072 cal.add(Calendar.YEAR, years);
073 cal.add(Calendar.MONTH, months);
074 cal.add(Calendar.DAY_OF_MONTH, days);
075 cal.add(Calendar.HOUR, hours);
076 cal.add(Calendar.MINUTE, minutes);
077
078 return setDate(cal.getTime());
079 }
080
081 @Override
082 protected Date now() {
083 return new Date(Clock.getTime());
084 }
085
086 @Override
087 protected Date setDate(final Date date) {
088 return date;
089 }
090 }