1 /*
2 * Copyright (c) 2015, 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 build.tools.charsetmapping;
27
28 import java.io.*;
29 import java.util.Locale;
30 import java.util.ArrayList;
31 import java.util.LinkedHashMap;
32 import java.util.Scanner;
33
34 public class SPI {
35
36 public static void genClass(String type,
37 LinkedHashMap<String, Charset> charsets,
38 String srcDir, String dstDir, String template,
39 String os)
40 throws Exception
41 {
42 try (Scanner s = new Scanner(new File(template));
43 PrintStream out = new PrintStream(new FileOutputStream(
44 new File(dstDir, new File(
45 template.replace(".template", "")).getName()))); ) {
46 if (type.startsWith("extcs")) { // ExtendedCharsets.java
47 while (s.hasNextLine()) {
48 String line = s.nextLine();
49 if (line.indexOf("_CHARSETS_DEF_LIST_") == -1) {
50 out.println(line);
51 } else {
52 charsets.values()
53 .stream()
54 .filter(cs -> cs.pkgName.equals("sun.nio.cs.ext") &&
55 !cs.isInternal &&
56 (cs.os == null || cs.os.equals(os)))
57 .forEach( cs -> {
58 out.printf(" charset(\"%s\", \"%s\",%n", cs.csName, cs.clzName);
59 out.printf(" new String[] {%n");
60 for (String alias : cs.aliases) {
61 out.printf(" \"%s\",%n", alias);
62 }
63 out.printf(" });%n%n");
64 });
65 }
66 }
67 } else if (type.startsWith("stdcs")) { // StandardCharsets.java
68 ArrayList<String> aliasKeys = new ArrayList<>();
69 ArrayList<String> aliasValues = new ArrayList<>();
70 ArrayList<String> clzKeys = new ArrayList<>();
71 ArrayList<String> clzValues = new ArrayList<>();
72 charsets.values()
73 .stream()
74 .filter(cs -> cs.pkgName.equals("sun.nio.cs") &&
75 !cs.isInternal)
76 .forEach( cs -> {
77 String csname = cs.csName.toLowerCase(Locale.ENGLISH);
78 clzKeys.add(csname);
79 clzValues.add("\"" + cs.clzName + "\"");
80 if (cs.aliases != null) {
81 csname = "\"" + csname + "\"";
82 for (String alias : cs.aliases) {
83 aliasKeys.add(alias.toLowerCase(Locale.ENGLISH));
84 aliasValues.add(csname);
85 }
86 }
87 });
88 while (s.hasNextLine()) {
89 String line = s.nextLine();
90 if (line.indexOf("_INCLUDE_ALIASES_TABLES_") != -1) {
91 charsets.values()
92 .stream()
93 .filter(cs -> cs.pkgName.equals("sun.nio.cs"))
94 .forEach( cs -> {
95 if (cs.aliases == null || cs.aliases.length == 0) {
96 out.printf(" static final String[] aliases_%s = null;%n%n",
97 cs.clzName);
98 } else {
99 // non-final for SJIS and MS932 to support sun.nio.cs.map
100 if (cs.clzName.equals("SJIS") || cs.clzName.equals("MS932")) {
101 out.printf(" static String[] aliases_%s = new String[] {%n",
102 cs.clzName);
103 } else {
104 out.printf(" static final String[] aliases_%s = new String[] {%n",
105 cs.clzName);
106 }
107 for (String alias : cs.aliases) {
108 out.printf(" \"%s\",%n", alias);
109 }
110 out.printf(" };%n%n");
111 }
112 });
113 Charset cs = charsets.get("SJIS");
114 if (cs == null || cs.pkgName.equals("sun.nio.cs.ext")) {
115 // StandardCharsets.java has explicit reference
116 // to aliases_SJIS/MS932. If we don't have these
117 // two in std, just put a pair of dummy fields to
118 // make the compiler happy.
119 out.printf(" static String[] aliases_SJIS = null;%n%n");
120 out.printf(" static String[] aliases_MS932 = null;%n%n");
121 }
122 } else if (line.indexOf("_INCLUDE_ALIASES_MAP_") != -1) {
123 Hasher.genClass(out, aliasKeys, aliasValues,
124 null, "Aliases", "String",
125 11, 3, true, false, false);
126 } else if (line.indexOf("_INCLUDE_CLASSES_MAP_") != -1) {
127 Hasher.genClass(out, clzKeys, clzValues,
128 null, "Classes", "String",
129 11, 3, true, false, false);
130 } else if (line.indexOf("_INCLUDE_CACHE_MAP_") != -1) {
131 Hasher.genClass(out, clzKeys, clzValues,
132 null, "Cache", "Charset",
133 11, 3, true, true, false);
134 } else {
135 out.println(line);
136 }
137 }
138 } else {
139 throw new RuntimeException("Unknown type:" + type);
140 }
141 }
142
143 }
144 }