001 /*
002 * Copyright 2008-2016 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016 package griffon.core.editors;
017
018 import griffon.core.formatters.Formatter;
019 import griffon.core.formatters.LocalDateFormatter;
020 import griffon.metadata.PropertyEditorFor;
021
022 import java.time.LocalDate;
023 import java.time.LocalDateTime;
024 import java.time.format.DateTimeParseException;
025 import java.util.ArrayList;
026 import java.util.Calendar;
027 import java.util.Date;
028 import java.util.List;
029 import java.util.Map;
030
031 import static griffon.util.GriffonNameUtils.isBlank;
032 import static java.time.LocalDate.ofEpochDay;
033
034 /**
035 * @author Andres Almiray
036 * @since 2.4.0
037 */
038 @PropertyEditorFor(LocalDate.class)
039 public class LocalDatePropertyEditor extends AbstractPropertyEditor {
040 protected void setValueInternal(Object value) {
041 if (null == value) {
042 super.setValueInternal(null);
043 } else if (value instanceof CharSequence) {
044 handleAsString(String.valueOf(value));
045 } else if (value instanceof LocalDate) {
046 super.setValueInternal(value);
047 } else if (value instanceof LocalDateTime) {
048 super.setValueInternal(((LocalDateTime) value).toLocalDate());
049 } else if (value instanceof Date) {
050 super.setValueInternal(ofEpochDay(((Date) value).getTime()));
051 } else if (value instanceof Calendar) {
052 super.setValueInternal(ofEpochDay(((Calendar) value).getTime().getTime()));
053 } else if (value instanceof Number) {
054 super.setValueInternal(ofEpochDay(((Number) value).longValue()));
055 } else if (value instanceof List) {
056 handleAsList((List) value);
057 } else if (value instanceof Map) {
058 handleAsMap((Map) value);
059 } else {
060 throw illegalValue(value, LocalDate.class);
061 }
062 }
063
064 protected void handleAsString(String str) {
065 if (isBlank(str)) {
066 super.setValueInternal(null);
067 return;
068 }
069
070 try {
071 super.setValueInternal(LocalDate.parse(str));
072 } catch (DateTimeParseException dtpe) {
073 throw illegalValue(str, LocalDate.class, dtpe);
074 }
075 }
076
077 protected Formatter<LocalDate> resolveFormatter() {
078 return isBlank(getFormat()) ? null : new LocalDateFormatter(getFormat());
079 }
080
081 protected void handleAsList(List<?> list) {
082 if (list.isEmpty()) {
083 super.setValueInternal(null);
084 return;
085 }
086
087 List<Object> values = new ArrayList<>();
088 values.addAll(list);
089 if (values.size() != 3) {
090 throw illegalValue(list, LocalDate.class);
091 }
092
093 for (int i = 0, valuesSize = values.size(); i < valuesSize; i++) {
094 Object val = values.get(i);
095 if (val instanceof Number) {
096 values.set(i, parse((Number) val));
097 } else if (val instanceof CharSequence) {
098 values.set(i, parse(String.valueOf(val)));
099 } else {
100 throw illegalValue(list, LocalDate.class);
101 }
102 }
103 super.setValueInternal(
104 LocalDate.of(
105 (Integer) values.get(0),
106 (Integer) values.get(1),
107 (Integer) values.get(2)
108 )
109 );
110 }
111
112 protected void handleAsMap(Map<?, ?> map) {
113 if (map.isEmpty()) {
114 super.setValueInternal(null);
115 return;
116 }
117
118 int y = getMapValue(map, "year", 1970);
119 int m = getMapValue(map, "month", 1);
120 int d = getMapValue(map, "day", 1);
121 super.setValueInternal(LocalDate.of(y, m, d));
122 }
123
124 protected int parse(String val) {
125 try {
126 return Integer.parseInt(val.trim());
127 } catch (NumberFormatException e) {
128 throw illegalValue(val, LocalDate.class, e);
129 }
130 }
131
132 protected int parse(Number val) {
133 return val.intValue();
134 }
135
136 protected int getMapValue(Map<?, ?> map, String key, int defaultValue) {
137 Object val = map.get(key);
138 if (null == val) val = map.get(String.valueOf(key.charAt(0)));
139 if (null == val) {
140 return defaultValue;
141 } else if (val instanceof CharSequence) {
142 return parse(String.valueOf(val));
143 } else if (val instanceof Number) {
144 return parse((Number) val);
145 }
146 throw illegalValue(map, LocalDate.class);
147 }
148 }
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