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
020package org.apache.isis.core.progmodel.facets.value.timesql;
021
022import java.sql.Time;
023import java.text.DateFormat;
024import java.util.Calendar;
025import java.util.Date;
026import java.util.Map;
027
028import com.google.common.collect.Maps;
029
030import org.apache.isis.applib.adapters.EncoderDecoder;
031import org.apache.isis.applib.adapters.Parser;
032import org.apache.isis.applib.clock.Clock;
033import org.apache.isis.core.commons.config.IsisConfiguration;
034import org.apache.isis.core.metamodel.facetapi.FacetHolder;
035import org.apache.isis.core.progmodel.facets.object.value.ValueSemanticsProviderContext;
036import org.apache.isis.core.progmodel.facets.value.time.TimeValueSemanticsProviderAbstract;
037
038/**
039 * Treats {@link java.sql.Time} as a time-only value type.
040 * 
041 */
042public class JavaSqlTimeValueSemanticsProvider extends TimeValueSemanticsProviderAbstract<java.sql.Time> {
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
051     * {@link EncoderDecoder}.
052     */
053    public JavaSqlTimeValueSemanticsProvider() {
054        this(null, null, null);
055    }
056
057    public JavaSqlTimeValueSemanticsProvider(final FacetHolder holder, final IsisConfiguration configuration, final ValueSemanticsProviderContext context) {
058        super(holder, java.sql.Time.class, configuration, context);
059    }
060
061    @Override
062    public Time add(final Time original, final int years, final int months, final int days, final int hours, final int minutes) {
063        final java.sql.Time time = original;
064        final Calendar cal = Calendar.getInstance();
065        cal.setTime(time);
066        cal.set(Calendar.YEAR, 0);
067        cal.set(Calendar.MONTH, 0);
068        cal.set(Calendar.DAY_OF_MONTH, 0);
069        cal.set(Calendar.MILLISECOND, 0);
070
071        cal.add(Calendar.HOUR, hours);
072        cal.add(Calendar.MINUTE, minutes);
073
074        return setDate(cal.getTime());
075    }
076
077    @Override
078    public java.util.Date dateValue(final Object object) {
079        final java.sql.Time time = (Time) object;
080        return time == null ? null : new java.util.Date(time.getTime());
081    }
082
083    @Override
084    protected Map<String, DateFormat> formats() {
085        return formats;
086    }
087
088    @Override
089    protected Time now() {
090        return new java.sql.Time(Clock.getTime());
091    }
092
093    @Override
094    protected Time setDate(final Date date) {
095        return new java.sql.Time(date.getTime());
096    }
097
098}