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.timestamp;
021
022 import java.text.DateFormat;
023 import java.util.Date;
024 import java.util.Map;
025
026 import org.apache.isis.applib.adapters.EncoderDecoder;
027 import org.apache.isis.applib.adapters.Parser;
028 import org.apache.isis.applib.value.TimeStamp;
029 import org.apache.isis.core.commons.config.IsisConfiguration;
030 import org.apache.isis.core.metamodel.facetapi.FacetHolder;
031 import org.apache.isis.core.metamodel.facets.object.parseable.InvalidEntryException;
032 import org.apache.isis.core.metamodel.facets.properties.defaults.PropertyDefaultFacet;
033 import org.apache.isis.core.progmodel.facets.object.value.ValueSemanticsProviderContext;
034
035 import com.google.inject.internal.Maps;
036
037 public class TimeStampValueSemanticsProvider extends TimeStampValueSemanticsProviderAbstract<TimeStamp> {
038
039 public static final boolean isAPropertyDefaultFacet() {
040 return PropertyDefaultFacet.class.isAssignableFrom(TimeStampValueSemanticsProvider.class);
041 }
042
043 private static Map<String, DateFormat> formats = Maps.newHashMap();
044
045 static {
046 initFormats(formats);
047 }
048
049 /**
050 * Required because implementation of {@link Parser} and {@link EncoderDecoder}.
051 */
052 public TimeStampValueSemanticsProvider() {
053 this(null, null, null);
054 }
055
056 public TimeStampValueSemanticsProvider(final FacetHolder holder, final IsisConfiguration configuration,
057 final ValueSemanticsProviderContext context) {
058 super(holder, TimeStamp.class, configuration, context);
059 }
060
061 // //////////////////////////////////////////////////////////////////
062 // temporal-specific stuff
063 // //////////////////////////////////////////////////////////////////
064
065 @Override
066 protected Date dateValue(final Object value) {
067 return new Date(((TimeStamp) value).longValue());
068 }
069
070 @Override
071 protected Map<String, DateFormat> formats() {
072 return formats;
073 }
074
075 @Override
076 protected TimeStamp now() {
077 throw new InvalidEntryException("Can't change a timestamp.");
078 }
079
080 @Override
081 protected TimeStamp setDate(final Date date) {
082 return new TimeStamp(date.getTime());
083 }
084
085 }