1 /*
2 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javafx.css.converter;
27
28 import com.sun.javafx.util.Logging;
29 import javafx.css.ParsedValue;
30 import javafx.css.StyleConverter;
31 import javafx.scene.text.Font;
32 import com.sun.javafx.logging.PlatformLogger;
33 import com.sun.javafx.logging.PlatformLogger.Level;
34
35 import java.io.DataInputStream;
36 import java.io.DataOutputStream;
37 import java.io.IOException;
38 import java.util.HashMap;
39 import java.util.Locale;
40 import java.util.Map;
41
42 /**
43 * @since 9
44 */
45 public final class EnumConverter<E extends Enum<E>> extends StyleConverter<String, E> {
46
47 // package for unit testing
48 final Class<E> enumClass;
49
50 public EnumConverter(Class<E> enumClass) {
51 this.enumClass = enumClass;
52 }
53
54 @Override
55 public E convert(ParsedValue<String, E> value, Font not_used) {
56 if (enumClass == null) {
57 return null;
58 }
59 String string = value.getValue();
60 final int dotPos = string.lastIndexOf('.');
61 if (dotPos > -1) {
62 string = string.substring(dotPos + 1);
63 }
64 try {
65 string = string.replace('-', '_');
66 return Enum.valueOf(enumClass, string.toUpperCase(Locale.ROOT));
67 } catch (IllegalArgumentException e) {
68 // may throw another IllegalArgumentException
69 return Enum.valueOf(enumClass, string);
70 }
71 }
72
73 @Override
74 public void writeBinary(DataOutputStream os, StringStore sstore) throws IOException {
75 super.writeBinary(os,sstore);
76 String ename = enumClass.getName();
77 int index = sstore.addString(ename);
78 os.writeShort(index);
79 }
80
81
82 public static StyleConverter<?,?> readBinary(DataInputStream is, String[] strings)
83 throws IOException {
84
85 short index = is.readShort();
86 String ename = 0 <= index && index <= strings.length ? strings[index] : null;
87
88 if (ename == null || ename.isEmpty()) return null;
89
90 if (converters == null || converters.containsKey(ename) == false) {
91 StyleConverter<?,?> converter = getInstance(ename);
92
93 if (converter == null) {
94 final PlatformLogger logger = Logging.getCSSLogger();
95 if (logger.isLoggable(Level.SEVERE)) {
96 logger.severe("could not deserialize EnumConverter for " + ename);
97 }
98 }
99
100 if (converters == null) converters = new HashMap<String,StyleConverter<?,?>>();
101 converters.put(ename, converter);
102 return converter;
103 }
104 return converters.get(ename);
105 }
106
107 private static Map<String,StyleConverter<?,?>> converters;
108
109 // package for unit testing
110 static public StyleConverter<?,?> getInstance(final String ename) {
111
112 StyleConverter<?,?> converter = null;
113
114 switch (ename) {
115 case "com.sun.javafx.cursor.CursorType" :
116 converter = new EnumConverter<com.sun.javafx.cursor.CursorType>(com.sun.javafx.cursor.CursorType.class);
117 break;
118 case "javafx.scene.layout.BackgroundRepeat" :
119 case "com.sun.javafx.scene.layout.region.Repeat" :
120 converter = new EnumConverter<javafx.scene.layout.BackgroundRepeat>(javafx.scene.layout.BackgroundRepeat.class);
121 break;
122 case "javafx.geometry.HPos" :
123 converter = new EnumConverter<javafx.geometry.HPos>(javafx.geometry.HPos.class);
124 break;
125 case "javafx.geometry.Orientation" :
126 converter = new EnumConverter<javafx.geometry.Orientation>(javafx.geometry.Orientation.class);
127 break;
128 case "javafx.geometry.Pos" :
129 converter = new EnumConverter<javafx.geometry.Pos>(javafx.geometry.Pos.class);
130 break;
131 case "javafx.geometry.Side" :
132 converter = new EnumConverter<javafx.geometry.Side>(javafx.geometry.Side.class);
133 break;
134 case "javafx.geometry.VPos" :
135 converter = new EnumConverter<javafx.geometry.VPos>(javafx.geometry.VPos.class);
136 break;
137 case "javafx.scene.effect.BlendMode" :
138 converter = new EnumConverter<javafx.scene.effect.BlendMode>(javafx.scene.effect.BlendMode.class);
139 break;
140 case "javafx.scene.effect.BlurType" :
141 converter = new EnumConverter<javafx.scene.effect.BlurType>(javafx.scene.effect.BlurType.class);
142 break;
143 case "javafx.scene.paint.CycleMethod" :
144 converter = new EnumConverter<javafx.scene.paint.CycleMethod>(javafx.scene.paint.CycleMethod.class);
145 break;
146 case "javafx.scene.shape.ArcType" :
147 converter = new EnumConverter<javafx.scene.shape.ArcType>(javafx.scene.shape.ArcType.class);
148 break;
149 case "javafx.scene.shape.StrokeLineCap" :
150 converter = new EnumConverter<javafx.scene.shape.StrokeLineCap>(javafx.scene.shape.StrokeLineCap.class);
151 break;
152 case "javafx.scene.shape.StrokeLineJoin" :
153 converter = new EnumConverter<javafx.scene.shape.StrokeLineJoin>(javafx.scene.shape.StrokeLineJoin.class);
154 break;
155 case "javafx.scene.shape.StrokeType" :
156 converter = new EnumConverter<javafx.scene.shape.StrokeType>(javafx.scene.shape.StrokeType.class);
157 break;
158 case "javafx.scene.text.FontPosture" :
159 converter = new EnumConverter<javafx.scene.text.FontPosture>(javafx.scene.text.FontPosture.class);
160 break;
161 case "javafx.scene.text.FontSmoothingType" :
162 converter = new EnumConverter<javafx.scene.text.FontSmoothingType>(javafx.scene.text.FontSmoothingType.class);
163 break;
164 case "javafx.scene.text.FontWeight" :
165 converter = new EnumConverter<javafx.scene.text.FontWeight>(javafx.scene.text.FontWeight.class);
166 break;
167 case "javafx.scene.text.TextAlignment" :
168 converter = new EnumConverter<javafx.scene.text.TextAlignment>(javafx.scene.text.TextAlignment.class);
169 break;
170
171 default :
172 //
173 // Enum types that are not in the javafx-ui-common source tree.
174 //
175 // Because the parser doesn't explicitly know about these enums
176 // outside of the javafx-ui-common package, I don't expect these
177 // EnumConverters to have been persisted. For example, the
178 // -fx-text-overrun and -fx-content-display properties, will yield
179 // a ParsedValue<String,String> with a null converter.
180 //
181 // If assertions are disabled, then null is returned. The StyleHelper
182 // code will use the StyleableProperty's converter in this case.
183 //
184 assert false : "EnumConverter<"+ ename + "> not expected";
185
186 final PlatformLogger logger = Logging.getCSSLogger();
187 if (logger.isLoggable(Level.SEVERE)) {
188 logger.severe("EnumConverter : converter Class is null for : "+ename);
189 }
190 break;
191 }
192
193 return converter;
194 }
195
196
197 @Override
198 public boolean equals(Object other) {
199 if (other == this) return true;
200 if (other == null || !(other instanceof EnumConverter)) return false;
201 return (enumClass.equals(((EnumConverter)other).enumClass));
202 }
203
204 @Override
205 public int hashCode() {
206 return enumClass.hashCode();
207 }
208
209 @Override
210 public String toString() {
211 return "EnumConveter[" + enumClass.getName() + "]";
212 }
213 }