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/*
* Copyright (c) 2002, 2020, Oracle and/or its affiliates.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.cj;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
/**
* Mapping between MySQL charset names and Java charset names. I've investigated placing these in a .properties file, but unfortunately under most appservers
* this complicates configuration because the security policy needs to be changed by the user to allow the driver to read them :(
*/
public class CharsetMapping {
public static final int MAP_SIZE = 2048; // Size of static maps
public static final String[] COLLATION_INDEX_TO_COLLATION_NAME;
public static final MysqlCharset[] COLLATION_INDEX_TO_CHARSET;
public static final Map CHARSET_NAME_TO_CHARSET;
public static final Map CHARSET_NAME_TO_COLLATION_INDEX;
private static final Map> JAVA_ENCODING_UC_TO_MYSQL_CHARSET;
private static final Set MULTIBYTE_ENCODINGS;
public static final Set UTF8MB4_INDEXES;
private static final String MYSQL_CHARSET_NAME_armscii8 = "armscii8";
private static final String MYSQL_CHARSET_NAME_ascii = "ascii";
private static final String MYSQL_CHARSET_NAME_big5 = "big5";
private static final String MYSQL_CHARSET_NAME_binary = "binary";
private static final String MYSQL_CHARSET_NAME_cp1250 = "cp1250";
private static final String MYSQL_CHARSET_NAME_cp1251 = "cp1251";
private static final String MYSQL_CHARSET_NAME_cp1256 = "cp1256";
private static final String MYSQL_CHARSET_NAME_cp1257 = "cp1257";
private static final String MYSQL_CHARSET_NAME_cp850 = "cp850";
private static final String MYSQL_CHARSET_NAME_cp852 = "cp852";
private static final String MYSQL_CHARSET_NAME_cp866 = "cp866";
private static final String MYSQL_CHARSET_NAME_cp932 = "cp932";
private static final String MYSQL_CHARSET_NAME_dec8 = "dec8";
private static final String MYSQL_CHARSET_NAME_eucjpms = "eucjpms";
private static final String MYSQL_CHARSET_NAME_euckr = "euckr";
private static final String MYSQL_CHARSET_NAME_gb18030 = "gb18030";
private static final String MYSQL_CHARSET_NAME_gb2312 = "gb2312";
private static final String MYSQL_CHARSET_NAME_gbk = "gbk";
private static final String MYSQL_CHARSET_NAME_geostd8 = "geostd8";
private static final String MYSQL_CHARSET_NAME_greek = "greek";
private static final String MYSQL_CHARSET_NAME_hebrew = "hebrew";
private static final String MYSQL_CHARSET_NAME_hp8 = "hp8";
private static final String MYSQL_CHARSET_NAME_keybcs2 = "keybcs2";
private static final String MYSQL_CHARSET_NAME_koi8r = "koi8r";
private static final String MYSQL_CHARSET_NAME_koi8u = "koi8u";
private static final String MYSQL_CHARSET_NAME_latin1 = "latin1";
private static final String MYSQL_CHARSET_NAME_latin2 = "latin2";
private static final String MYSQL_CHARSET_NAME_latin5 = "latin5";
private static final String MYSQL_CHARSET_NAME_latin7 = "latin7";
private static final String MYSQL_CHARSET_NAME_macce = "macce";
private static final String MYSQL_CHARSET_NAME_macroman = "macroman";
private static final String MYSQL_CHARSET_NAME_sjis = "sjis";
private static final String MYSQL_CHARSET_NAME_swe7 = "swe7";
private static final String MYSQL_CHARSET_NAME_tis620 = "tis620";
private static final String MYSQL_CHARSET_NAME_ucs2 = "ucs2";
private static final String MYSQL_CHARSET_NAME_ujis = "ujis";
private static final String MYSQL_CHARSET_NAME_utf16 = "utf16";
private static final String MYSQL_CHARSET_NAME_utf16le = "utf16le";
private static final String MYSQL_CHARSET_NAME_utf32 = "utf32";
private static final String MYSQL_CHARSET_NAME_utf8 = "utf8";
private static final String MYSQL_CHARSET_NAME_utf8mb4 = "utf8mb4";
public static final String NOT_USED = MYSQL_CHARSET_NAME_latin1; // punting for not-used character sets
public static final String COLLATION_NOT_DEFINED = "none";
public static final int MYSQL_COLLATION_INDEX_utf8 = 33;
public static final int MYSQL_COLLATION_INDEX_binary = 63;
private static int numberOfEncodingsConfigured = 0;
static {
// complete list of mysql character sets and their corresponding java encoding names
MysqlCharset[] charset = new MysqlCharset[] { new MysqlCharset(MYSQL_CHARSET_NAME_ascii, 1, 0, new String[] { "US-ASCII", "ASCII" }),
new MysqlCharset(MYSQL_CHARSET_NAME_big5, 2, 0, new String[] { "Big5" }),
new MysqlCharset(MYSQL_CHARSET_NAME_gbk, 2, 0, new String[] { "GBK" }),
new MysqlCharset(MYSQL_CHARSET_NAME_sjis, 2, 0, new String[] { "SHIFT_JIS", "Cp943", "WINDOWS-31J" }), // SJIS is alias for SHIFT_JIS, Cp943 is rather a cp932 but we map it to sjis for years
new MysqlCharset(MYSQL_CHARSET_NAME_cp932, 2, 1, new String[] { "WINDOWS-31J" }), // MS932 is alias for WINDOWS-31J
new MysqlCharset(MYSQL_CHARSET_NAME_gb2312, 2, 0, new String[] { "GB2312" }),
new MysqlCharset(MYSQL_CHARSET_NAME_ujis, 3, 0, new String[] { "EUC_JP" }),
new MysqlCharset(MYSQL_CHARSET_NAME_eucjpms, 3, 0, new String[] { "EUC_JP_Solaris" }, new ServerVersion(5, 0, 3)), // "EUC_JP_Solaris = >5.0.3 eucjpms,"
new MysqlCharset(MYSQL_CHARSET_NAME_gb18030, 4, 0, new String[] { "GB18030" }, new ServerVersion(5, 7, 4)),
new MysqlCharset(MYSQL_CHARSET_NAME_euckr, 2, 0, new String[] { "EUC-KR" }),
new MysqlCharset(MYSQL_CHARSET_NAME_latin1, 1, 1, new String[] { "Cp1252", "ISO8859_1" }),
new MysqlCharset(MYSQL_CHARSET_NAME_swe7, 1, 0, new String[] { "Cp1252" }), // new mapping, Cp1252 ?
new MysqlCharset(MYSQL_CHARSET_NAME_hp8, 1, 0, new String[] { "Cp1252" }), // new mapping, Cp1252 ?
new MysqlCharset(MYSQL_CHARSET_NAME_dec8, 1, 0, new String[] { "Cp1252" }), // new mapping, Cp1252 ?
new MysqlCharset(MYSQL_CHARSET_NAME_armscii8, 1, 0, new String[] { "Cp1252" }), // new mapping, Cp1252 ?
new MysqlCharset(MYSQL_CHARSET_NAME_geostd8, 1, 0, new String[] { "Cp1252" }), // new mapping, Cp1252 ?
new MysqlCharset(MYSQL_CHARSET_NAME_latin2, 1, 0, new String[] { "ISO8859_2" }), // latin2 is an alias
new MysqlCharset(MYSQL_CHARSET_NAME_greek, 1, 0, new String[] { "ISO8859_7", "greek" }),
new MysqlCharset(MYSQL_CHARSET_NAME_latin7, 1, 0, new String[] { "ISO-8859-13" }), // was ISO8859_7, that's incorrect; also + "LATIN7 = latin7," is wrong java encoding name
new MysqlCharset(MYSQL_CHARSET_NAME_hebrew, 1, 0, new String[] { "ISO8859_8" }), // hebrew is an alias
new MysqlCharset(MYSQL_CHARSET_NAME_latin5, 1, 0, new String[] { "ISO8859_9" }), // LATIN5 is an alias
new MysqlCharset(MYSQL_CHARSET_NAME_cp850, 1, 0, new String[] { "Cp850", "Cp437" }),
new MysqlCharset(MYSQL_CHARSET_NAME_cp852, 1, 0, new String[] { "Cp852" }),
new MysqlCharset(MYSQL_CHARSET_NAME_keybcs2, 1, 0, new String[] { "Cp852" }), // new, Kamenicky encoding usually known as Cp895 but there is no official cp895 specification; close to Cp852, see http://ftp.muni.cz/pub/localization/charsets/cs-encodings-faq
new MysqlCharset(MYSQL_CHARSET_NAME_cp866, 1, 0, new String[] { "Cp866" }),
new MysqlCharset(MYSQL_CHARSET_NAME_koi8r, 1, 1, new String[] { "KOI8_R" }),
new MysqlCharset(MYSQL_CHARSET_NAME_koi8u, 1, 0, new String[] { "KOI8_R" }),
new MysqlCharset(MYSQL_CHARSET_NAME_tis620, 1, 0, new String[] { "TIS620" }),
new MysqlCharset(MYSQL_CHARSET_NAME_cp1250, 1, 0, new String[] { "Cp1250" }),
new MysqlCharset(MYSQL_CHARSET_NAME_cp1251, 1, 1, new String[] { "Cp1251" }),
new MysqlCharset(MYSQL_CHARSET_NAME_cp1256, 1, 0, new String[] { "Cp1256" }),
new MysqlCharset(MYSQL_CHARSET_NAME_cp1257, 1, 0, new String[] { "Cp1257" }),
new MysqlCharset(MYSQL_CHARSET_NAME_macroman, 1, 0, new String[] { "MacRoman" }),
new MysqlCharset(MYSQL_CHARSET_NAME_macce, 1, 0, new String[] { "MacCentralEurope" }),
new MysqlCharset(MYSQL_CHARSET_NAME_utf8, 3, 1, new String[] { "UTF-8" }),
new MysqlCharset(MYSQL_CHARSET_NAME_utf8mb4, 4, 0, new String[] { "UTF-8" }), // "UTF-8 = *> 5.5.2 utf8mb4,"
new MysqlCharset(MYSQL_CHARSET_NAME_ucs2, 2, 0, new String[] { "UnicodeBig" }),
new MysqlCharset(MYSQL_CHARSET_NAME_binary, 1, 1, new String[] { "ISO8859_1" }), // US-ASCII ?
new MysqlCharset(MYSQL_CHARSET_NAME_utf16, 4, 0, new String[] { "UTF-16" }),
new MysqlCharset(MYSQL_CHARSET_NAME_utf16le, 4, 0, new String[] { "UTF-16LE" }),
new MysqlCharset(MYSQL_CHARSET_NAME_utf32, 4, 0, new String[] { "UTF-32" })
};
HashMap charsetNameToMysqlCharsetMap = new HashMap<>();
HashMap> javaUcToMysqlCharsetMap = new HashMap<>();
Set tempMultibyteEncodings = new HashSet<>(); // Character sets that we can't convert ourselves.
for (int i = 0; i < charset.length; i++) {
String charsetName = charset[i].charsetName;
charsetNameToMysqlCharsetMap.put(charsetName, charset[i]);
numberOfEncodingsConfigured += charset[i].javaEncodingsUc.size();
for (String encUC : charset[i].javaEncodingsUc) {
// fill javaUcToMysqlCharsetMap
List charsets = javaUcToMysqlCharsetMap.get(encUC);
if (charsets == null) {
charsets = new ArrayList<>();
javaUcToMysqlCharsetMap.put(encUC, charsets);
}
charsets.add(charset[i]);
// fill multi-byte charsets
if (charset[i].mblen > 1) {
tempMultibyteEncodings.add(encUC);
}
}
}
CHARSET_NAME_TO_CHARSET = Collections.unmodifiableMap(charsetNameToMysqlCharsetMap);
JAVA_ENCODING_UC_TO_MYSQL_CHARSET = Collections.unmodifiableMap(javaUcToMysqlCharsetMap);
MULTIBYTE_ENCODINGS = Collections.unmodifiableSet(tempMultibyteEncodings);
// complete list of mysql collations and their corresponding character sets each element of collation[1]..collation[MAP_SIZE-1] must not be null
Collation[] collation = new Collation[MAP_SIZE];
collation[1] = new Collation(1, "big5_chinese_ci", 1, MYSQL_CHARSET_NAME_big5);
collation[2] = new Collation(2, "latin2_czech_cs", 0, MYSQL_CHARSET_NAME_latin2);
collation[3] = new Collation(3, "dec8_swedish_ci", 0, MYSQL_CHARSET_NAME_dec8);
collation[4] = new Collation(4, "cp850_general_ci", 1, MYSQL_CHARSET_NAME_cp850);
collation[5] = new Collation(5, "latin1_german1_ci", 0, MYSQL_CHARSET_NAME_latin1);
collation[6] = new Collation(6, "hp8_english_ci", 0, MYSQL_CHARSET_NAME_hp8);
collation[7] = new Collation(7, "koi8r_general_ci", 0, MYSQL_CHARSET_NAME_koi8r);
collation[8] = new Collation(8, "latin1_swedish_ci", 1, MYSQL_CHARSET_NAME_latin1);
collation[9] = new Collation(9, "latin2_general_ci", 1, MYSQL_CHARSET_NAME_latin2);
collation[10] = new Collation(10, "swe7_swedish_ci", 0, MYSQL_CHARSET_NAME_swe7);
collation[11] = new Collation(11, "ascii_general_ci", 0, MYSQL_CHARSET_NAME_ascii);
collation[12] = new Collation(12, "ujis_japanese_ci", 0, MYSQL_CHARSET_NAME_ujis);
collation[13] = new Collation(13, "sjis_japanese_ci", 0, MYSQL_CHARSET_NAME_sjis);
collation[14] = new Collation(14, "cp1251_bulgarian_ci", 0, MYSQL_CHARSET_NAME_cp1251);
collation[15] = new Collation(15, "latin1_danish_ci", 0, MYSQL_CHARSET_NAME_latin1);
collation[16] = new Collation(16, "hebrew_general_ci", 0, MYSQL_CHARSET_NAME_hebrew);
collation[18] = new Collation(18, "tis620_thai_ci", 0, MYSQL_CHARSET_NAME_tis620);
collation[19] = new Collation(19, "euckr_korean_ci", 0, MYSQL_CHARSET_NAME_euckr);
collation[20] = new Collation(20, "latin7_estonian_cs", 0, MYSQL_CHARSET_NAME_latin7);
collation[21] = new Collation(21, "latin2_hungarian_ci", 0, MYSQL_CHARSET_NAME_latin2);
collation[22] = new Collation(22, "koi8u_general_ci", 0, MYSQL_CHARSET_NAME_koi8u);
collation[23] = new Collation(23, "cp1251_ukrainian_ci", 0, MYSQL_CHARSET_NAME_cp1251);
collation[24] = new Collation(24, "gb2312_chinese_ci", 0, MYSQL_CHARSET_NAME_gb2312);
collation[25] = new Collation(25, "greek_general_ci", 0, MYSQL_CHARSET_NAME_greek);
collation[26] = new Collation(26, "cp1250_general_ci", 1, MYSQL_CHARSET_NAME_cp1250);
collation[27] = new Collation(27, "latin2_croatian_ci", 0, MYSQL_CHARSET_NAME_latin2);
collation[28] = new Collation(28, "gbk_chinese_ci", 1, MYSQL_CHARSET_NAME_gbk);
collation[29] = new Collation(29, "cp1257_lithuanian_ci", 0, MYSQL_CHARSET_NAME_cp1257);
collation[30] = new Collation(30, "latin5_turkish_ci", 1, MYSQL_CHARSET_NAME_latin5);
collation[31] = new Collation(31, "latin1_german2_ci", 0, MYSQL_CHARSET_NAME_latin1);
collation[32] = new Collation(32, "armscii8_general_ci", 0, MYSQL_CHARSET_NAME_armscii8);
collation[33] = new Collation(33, "utf8_general_ci", 1, MYSQL_CHARSET_NAME_utf8);
collation[34] = new Collation(34, "cp1250_czech_cs", 0, MYSQL_CHARSET_NAME_cp1250);
collation[35] = new Collation(35, "ucs2_general_ci", 1, MYSQL_CHARSET_NAME_ucs2);
collation[36] = new Collation(36, "cp866_general_ci", 1, MYSQL_CHARSET_NAME_cp866);
collation[37] = new Collation(37, "keybcs2_general_ci", 1, MYSQL_CHARSET_NAME_keybcs2);
collation[38] = new Collation(38, "macce_general_ci", 1, MYSQL_CHARSET_NAME_macce);
collation[39] = new Collation(39, "macroman_general_ci", 1, MYSQL_CHARSET_NAME_macroman);
collation[40] = new Collation(40, "cp852_general_ci", 1, MYSQL_CHARSET_NAME_cp852);
collation[41] = new Collation(41, "latin7_general_ci", 1, MYSQL_CHARSET_NAME_latin7);
collation[42] = new Collation(42, "latin7_general_cs", 0, MYSQL_CHARSET_NAME_latin7);
collation[43] = new Collation(43, "macce_bin", 0, MYSQL_CHARSET_NAME_macce);
collation[44] = new Collation(44, "cp1250_croatian_ci", 0, MYSQL_CHARSET_NAME_cp1250);
collation[45] = new Collation(45, "utf8mb4_general_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[46] = new Collation(46, "utf8mb4_bin", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[47] = new Collation(47, "latin1_bin", 0, MYSQL_CHARSET_NAME_latin1);
collation[48] = new Collation(48, "latin1_general_ci", 0, MYSQL_CHARSET_NAME_latin1);
collation[49] = new Collation(49, "latin1_general_cs", 0, MYSQL_CHARSET_NAME_latin1);
collation[50] = new Collation(50, "cp1251_bin", 0, MYSQL_CHARSET_NAME_cp1251);
collation[51] = new Collation(51, "cp1251_general_ci", 1, MYSQL_CHARSET_NAME_cp1251);
collation[52] = new Collation(52, "cp1251_general_cs", 0, MYSQL_CHARSET_NAME_cp1251);
collation[53] = new Collation(53, "macroman_bin", 0, MYSQL_CHARSET_NAME_macroman);
collation[54] = new Collation(54, "utf16_general_ci", 1, MYSQL_CHARSET_NAME_utf16);
collation[55] = new Collation(55, "utf16_bin", 0, MYSQL_CHARSET_NAME_utf16);
collation[56] = new Collation(56, "utf16le_general_ci", 1, MYSQL_CHARSET_NAME_utf16le);
collation[57] = new Collation(57, "cp1256_general_ci", 1, MYSQL_CHARSET_NAME_cp1256);
collation[58] = new Collation(58, "cp1257_bin", 0, MYSQL_CHARSET_NAME_cp1257);
collation[59] = new Collation(59, "cp1257_general_ci", 1, MYSQL_CHARSET_NAME_cp1257);
collation[60] = new Collation(60, "utf32_general_ci", 1, MYSQL_CHARSET_NAME_utf32);
collation[61] = new Collation(61, "utf32_bin", 0, MYSQL_CHARSET_NAME_utf32);
collation[62] = new Collation(62, "utf16le_bin", 0, MYSQL_CHARSET_NAME_utf16le);
collation[63] = new Collation(63, "binary", 1, MYSQL_CHARSET_NAME_binary);
collation[64] = new Collation(64, "armscii8_bin", 0, MYSQL_CHARSET_NAME_armscii8);
collation[65] = new Collation(65, "ascii_bin", 0, MYSQL_CHARSET_NAME_ascii);
collation[66] = new Collation(66, "cp1250_bin", 0, MYSQL_CHARSET_NAME_cp1250);
collation[67] = new Collation(67, "cp1256_bin", 0, MYSQL_CHARSET_NAME_cp1256);
collation[68] = new Collation(68, "cp866_bin", 0, MYSQL_CHARSET_NAME_cp866);
collation[69] = new Collation(69, "dec8_bin", 0, MYSQL_CHARSET_NAME_dec8);
collation[70] = new Collation(70, "greek_bin", 0, MYSQL_CHARSET_NAME_greek);
collation[71] = new Collation(71, "hebrew_bin", 0, MYSQL_CHARSET_NAME_hebrew);
collation[72] = new Collation(72, "hp8_bin", 0, MYSQL_CHARSET_NAME_hp8);
collation[73] = new Collation(73, "keybcs2_bin", 0, MYSQL_CHARSET_NAME_keybcs2);
collation[74] = new Collation(74, "koi8r_bin", 0, MYSQL_CHARSET_NAME_koi8r);
collation[75] = new Collation(75, "koi8u_bin", 0, MYSQL_CHARSET_NAME_koi8u);
collation[76] = new Collation(76, "utf8_tolower_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[77] = new Collation(77, "latin2_bin", 0, MYSQL_CHARSET_NAME_latin2);
collation[78] = new Collation(78, "latin5_bin", 0, MYSQL_CHARSET_NAME_latin5);
collation[79] = new Collation(79, "latin7_bin", 0, MYSQL_CHARSET_NAME_latin7);
collation[80] = new Collation(80, "cp850_bin", 0, MYSQL_CHARSET_NAME_cp850);
collation[81] = new Collation(81, "cp852_bin", 0, MYSQL_CHARSET_NAME_cp852);
collation[82] = new Collation(82, "swe7_bin", 0, MYSQL_CHARSET_NAME_swe7);
collation[83] = new Collation(83, "utf8_bin", 0, MYSQL_CHARSET_NAME_utf8);
collation[84] = new Collation(84, "big5_bin", 0, MYSQL_CHARSET_NAME_big5);
collation[85] = new Collation(85, "euckr_bin", 0, MYSQL_CHARSET_NAME_euckr);
collation[86] = new Collation(86, "gb2312_bin", 0, MYSQL_CHARSET_NAME_gb2312);
collation[87] = new Collation(87, "gbk_bin", 0, MYSQL_CHARSET_NAME_gbk);
collation[88] = new Collation(88, "sjis_bin", 0, MYSQL_CHARSET_NAME_sjis);
collation[89] = new Collation(89, "tis620_bin", 0, MYSQL_CHARSET_NAME_tis620);
collation[90] = new Collation(90, "ucs2_bin", 0, MYSQL_CHARSET_NAME_ucs2);
collation[91] = new Collation(91, "ujis_bin", 0, MYSQL_CHARSET_NAME_ujis);
collation[92] = new Collation(92, "geostd8_general_ci", 0, MYSQL_CHARSET_NAME_geostd8);
collation[93] = new Collation(93, "geostd8_bin", 0, MYSQL_CHARSET_NAME_geostd8);
collation[94] = new Collation(94, "latin1_spanish_ci", 0, MYSQL_CHARSET_NAME_latin1);
collation[95] = new Collation(95, "cp932_japanese_ci", 1, MYSQL_CHARSET_NAME_cp932);
collation[96] = new Collation(96, "cp932_bin", 0, MYSQL_CHARSET_NAME_cp932);
collation[97] = new Collation(97, "eucjpms_japanese_ci", 1, MYSQL_CHARSET_NAME_eucjpms);
collation[98] = new Collation(98, "eucjpms_bin", 0, MYSQL_CHARSET_NAME_eucjpms);
collation[99] = new Collation(99, "cp1250_polish_ci", 0, MYSQL_CHARSET_NAME_cp1250);
collation[101] = new Collation(101, "utf16_unicode_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[102] = new Collation(102, "utf16_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[103] = new Collation(103, "utf16_latvian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[104] = new Collation(104, "utf16_romanian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[105] = new Collation(105, "utf16_slovenian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[106] = new Collation(106, "utf16_polish_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[107] = new Collation(107, "utf16_estonian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[108] = new Collation(108, "utf16_spanish_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[109] = new Collation(109, "utf16_swedish_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[110] = new Collation(110, "utf16_turkish_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[111] = new Collation(111, "utf16_czech_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[112] = new Collation(112, "utf16_danish_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[113] = new Collation(113, "utf16_lithuanian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[114] = new Collation(114, "utf16_slovak_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[115] = new Collation(115, "utf16_spanish2_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[116] = new Collation(116, "utf16_roman_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[117] = new Collation(117, "utf16_persian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[118] = new Collation(118, "utf16_esperanto_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[119] = new Collation(119, "utf16_hungarian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[120] = new Collation(120, "utf16_sinhala_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[121] = new Collation(121, "utf16_german2_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[122] = new Collation(122, "utf16_croatian_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[123] = new Collation(123, "utf16_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[124] = new Collation(124, "utf16_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[128] = new Collation(128, "ucs2_unicode_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[129] = new Collation(129, "ucs2_icelandic_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[130] = new Collation(130, "ucs2_latvian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[131] = new Collation(131, "ucs2_romanian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[132] = new Collation(132, "ucs2_slovenian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[133] = new Collation(133, "ucs2_polish_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[134] = new Collation(134, "ucs2_estonian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[135] = new Collation(135, "ucs2_spanish_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[136] = new Collation(136, "ucs2_swedish_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[137] = new Collation(137, "ucs2_turkish_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[138] = new Collation(138, "ucs2_czech_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[139] = new Collation(139, "ucs2_danish_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[140] = new Collation(140, "ucs2_lithuanian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[141] = new Collation(141, "ucs2_slovak_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[142] = new Collation(142, "ucs2_spanish2_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[143] = new Collation(143, "ucs2_roman_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[144] = new Collation(144, "ucs2_persian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[145] = new Collation(145, "ucs2_esperanto_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[146] = new Collation(146, "ucs2_hungarian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[147] = new Collation(147, "ucs2_sinhala_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[148] = new Collation(148, "ucs2_german2_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[149] = new Collation(149, "ucs2_croatian_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[150] = new Collation(150, "ucs2_unicode_520_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[151] = new Collation(151, "ucs2_vietnamese_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[159] = new Collation(159, "ucs2_general_mysql500_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[160] = new Collation(160, "utf32_unicode_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[161] = new Collation(161, "utf32_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[162] = new Collation(162, "utf32_latvian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[163] = new Collation(163, "utf32_romanian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[164] = new Collation(164, "utf32_slovenian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[165] = new Collation(165, "utf32_polish_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[166] = new Collation(166, "utf32_estonian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[167] = new Collation(167, "utf32_spanish_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[168] = new Collation(168, "utf32_swedish_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[169] = new Collation(169, "utf32_turkish_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[170] = new Collation(170, "utf32_czech_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[171] = new Collation(171, "utf32_danish_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[172] = new Collation(172, "utf32_lithuanian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[173] = new Collation(173, "utf32_slovak_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[174] = new Collation(174, "utf32_spanish2_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[175] = new Collation(175, "utf32_roman_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[176] = new Collation(176, "utf32_persian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[177] = new Collation(177, "utf32_esperanto_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[178] = new Collation(178, "utf32_hungarian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[179] = new Collation(179, "utf32_sinhala_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[180] = new Collation(180, "utf32_german2_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[181] = new Collation(181, "utf32_croatian_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[182] = new Collation(182, "utf32_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[183] = new Collation(183, "utf32_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[192] = new Collation(192, "utf8_unicode_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[193] = new Collation(193, "utf8_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[194] = new Collation(194, "utf8_latvian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[195] = new Collation(195, "utf8_romanian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[196] = new Collation(196, "utf8_slovenian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[197] = new Collation(197, "utf8_polish_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[198] = new Collation(198, "utf8_estonian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[199] = new Collation(199, "utf8_spanish_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[200] = new Collation(200, "utf8_swedish_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[201] = new Collation(201, "utf8_turkish_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[202] = new Collation(202, "utf8_czech_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[203] = new Collation(203, "utf8_danish_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[204] = new Collation(204, "utf8_lithuanian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[205] = new Collation(205, "utf8_slovak_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[206] = new Collation(206, "utf8_spanish2_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[207] = new Collation(207, "utf8_roman_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[208] = new Collation(208, "utf8_persian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[209] = new Collation(209, "utf8_esperanto_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[210] = new Collation(210, "utf8_hungarian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[211] = new Collation(211, "utf8_sinhala_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[212] = new Collation(212, "utf8_german2_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[213] = new Collation(213, "utf8_croatian_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[214] = new Collation(214, "utf8_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[215] = new Collation(215, "utf8_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[223] = new Collation(223, "utf8_general_mysql500_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[224] = new Collation(224, "utf8mb4_unicode_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[225] = new Collation(225, "utf8mb4_icelandic_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[226] = new Collation(226, "utf8mb4_latvian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[227] = new Collation(227, "utf8mb4_romanian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[228] = new Collation(228, "utf8mb4_slovenian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[229] = new Collation(229, "utf8mb4_polish_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[230] = new Collation(230, "utf8mb4_estonian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[231] = new Collation(231, "utf8mb4_spanish_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[232] = new Collation(232, "utf8mb4_swedish_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[233] = new Collation(233, "utf8mb4_turkish_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[234] = new Collation(234, "utf8mb4_czech_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[235] = new Collation(235, "utf8mb4_danish_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[236] = new Collation(236, "utf8mb4_lithuanian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[237] = new Collation(237, "utf8mb4_slovak_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[238] = new Collation(238, "utf8mb4_spanish2_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[239] = new Collation(239, "utf8mb4_roman_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[240] = new Collation(240, "utf8mb4_persian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[241] = new Collation(241, "utf8mb4_esperanto_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[242] = new Collation(242, "utf8mb4_hungarian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[243] = new Collation(243, "utf8mb4_sinhala_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[244] = new Collation(244, "utf8mb4_german2_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[245] = new Collation(245, "utf8mb4_croatian_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[246] = new Collation(246, "utf8mb4_unicode_520_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[247] = new Collation(247, "utf8mb4_vietnamese_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[248] = new Collation(248, "gb18030_chinese_ci", 1, MYSQL_CHARSET_NAME_gb18030);
collation[249] = new Collation(249, "gb18030_bin", 0, MYSQL_CHARSET_NAME_gb18030);
collation[250] = new Collation(250, "gb18030_unicode_520_ci", 0, MYSQL_CHARSET_NAME_gb18030);
collation[255] = new Collation(255, "utf8mb4_0900_ai_ci", 1, MYSQL_CHARSET_NAME_utf8mb4);
collation[256] = new Collation(256, "utf8mb4_de_pb_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[257] = new Collation(257, "utf8mb4_is_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[258] = new Collation(258, "utf8mb4_lv_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[259] = new Collation(259, "utf8mb4_ro_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[260] = new Collation(260, "utf8mb4_sl_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[261] = new Collation(261, "utf8mb4_pl_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[262] = new Collation(262, "utf8mb4_et_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[263] = new Collation(263, "utf8mb4_es_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[264] = new Collation(264, "utf8mb4_sv_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[265] = new Collation(265, "utf8mb4_tr_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[266] = new Collation(266, "utf8mb4_cs_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[267] = new Collation(267, "utf8mb4_da_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[268] = new Collation(268, "utf8mb4_lt_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[269] = new Collation(269, "utf8mb4_sk_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[270] = new Collation(270, "utf8mb4_es_trad_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[271] = new Collation(271, "utf8mb4_la_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[273] = new Collation(273, "utf8mb4_eo_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[274] = new Collation(274, "utf8mb4_hu_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[275] = new Collation(275, "utf8mb4_hr_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[277] = new Collation(277, "utf8mb4_vi_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[278] = new Collation(278, "utf8mb4_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[279] = new Collation(279, "utf8mb4_de_pb_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[280] = new Collation(280, "utf8mb4_is_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[281] = new Collation(281, "utf8mb4_lv_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[282] = new Collation(282, "utf8mb4_ro_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[283] = new Collation(283, "utf8mb4_sl_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[284] = new Collation(284, "utf8mb4_pl_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[285] = new Collation(285, "utf8mb4_et_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[286] = new Collation(286, "utf8mb4_es_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[287] = new Collation(287, "utf8mb4_sv_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[288] = new Collation(288, "utf8mb4_tr_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[289] = new Collation(289, "utf8mb4_cs_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[290] = new Collation(290, "utf8mb4_da_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[291] = new Collation(291, "utf8mb4_lt_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[292] = new Collation(292, "utf8mb4_sk_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[293] = new Collation(293, "utf8mb4_es_trad_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[294] = new Collation(294, "utf8mb4_la_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[296] = new Collation(296, "utf8mb4_eo_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[297] = new Collation(297, "utf8mb4_hu_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[298] = new Collation(298, "utf8mb4_hr_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[300] = new Collation(300, "utf8mb4_vi_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[303] = new Collation(303, "utf8mb4_ja_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[304] = new Collation(304, "utf8mb4_ja_0900_as_cs_ks", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[305] = new Collation(305, "utf8mb4_0900_as_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[306] = new Collation(306, "utf8mb4_ru_0900_ai_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[307] = new Collation(307, "utf8mb4_ru_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[308] = new Collation(308, "utf8mb4_zh_0900_as_cs", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[309] = new Collation(309, "utf8mb4_0900_bin", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[326] = new Collation(326, "utf8mb4_test_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[327] = new Collation(327, "utf16_test_ci", 0, MYSQL_CHARSET_NAME_utf16);
collation[328] = new Collation(328, "utf8mb4_test_400_ci", 0, MYSQL_CHARSET_NAME_utf8mb4);
collation[336] = new Collation(336, "utf8_bengali_standard_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[337] = new Collation(337, "utf8_bengali_traditional_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[352] = new Collation(352, "utf8_phone_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[353] = new Collation(353, "utf8_test_ci", 0, MYSQL_CHARSET_NAME_utf8);
collation[354] = new Collation(354, "utf8_5624_1", 0, MYSQL_CHARSET_NAME_utf8);
collation[355] = new Collation(355, "utf8_5624_2", 0, MYSQL_CHARSET_NAME_utf8);
collation[356] = new Collation(356, "utf8_5624_3", 0, MYSQL_CHARSET_NAME_utf8);
collation[357] = new Collation(357, "utf8_5624_4", 0, MYSQL_CHARSET_NAME_utf8);
collation[358] = new Collation(358, "ucs2_test_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[359] = new Collation(359, "ucs2_vn_ci", 0, MYSQL_CHARSET_NAME_ucs2);
collation[360] = new Collation(360, "ucs2_5624_1", 0, MYSQL_CHARSET_NAME_ucs2);
collation[368] = new Collation(368, "utf8_5624_5", 0, MYSQL_CHARSET_NAME_utf8);
collation[391] = new Collation(391, "utf32_test_ci", 0, MYSQL_CHARSET_NAME_utf32);
collation[2047] = new Collation(2047, "utf8_maxuserid_ci", 0, MYSQL_CHARSET_NAME_utf8);
COLLATION_INDEX_TO_COLLATION_NAME = new String[MAP_SIZE];
COLLATION_INDEX_TO_CHARSET = new MysqlCharset[MAP_SIZE];
Map charsetNameToCollationIndexMap = new TreeMap<>();
Map charsetNameToCollationPriorityMap = new TreeMap<>();
Set tempUTF8MB4Indexes = new HashSet<>();
Collation notUsedCollation = new Collation(0, COLLATION_NOT_DEFINED, 0, NOT_USED);
for (int i = 1; i < MAP_SIZE; i++) {
Collation coll = collation[i] != null ? collation[i] : notUsedCollation;
COLLATION_INDEX_TO_COLLATION_NAME[i] = coll.collationName;
COLLATION_INDEX_TO_CHARSET[i] = coll.mysqlCharset;
String charsetName = coll.mysqlCharset.charsetName;
if (!charsetNameToCollationIndexMap.containsKey(charsetName) || charsetNameToCollationPriorityMap.get(charsetName) < coll.priority) {
charsetNameToCollationIndexMap.put(charsetName, i);
charsetNameToCollationPriorityMap.put(charsetName, coll.priority);
}
// Filling indexes of utf8mb4 collations
if (charsetName.equals(MYSQL_CHARSET_NAME_utf8mb4)) {
tempUTF8MB4Indexes.add(i);
}
}
CHARSET_NAME_TO_COLLATION_INDEX = Collections.unmodifiableMap(charsetNameToCollationIndexMap);
UTF8MB4_INDEXES = Collections.unmodifiableSet(tempUTF8MB4Indexes);
collation = null;
}
public final static String getMysqlCharsetForJavaEncoding(String javaEncoding, ServerVersion version) {
List mysqlCharsets = CharsetMapping.JAVA_ENCODING_UC_TO_MYSQL_CHARSET.get(javaEncoding.toUpperCase(Locale.ENGLISH));
if (mysqlCharsets != null) {
Iterator iter = mysqlCharsets.iterator();
MysqlCharset currentChoice = null;
while (iter.hasNext()) {
MysqlCharset charset = iter.next();
if (version == null) {
// Take the first one we get
return charset.charsetName;
}
if (currentChoice == null || currentChoice.minimumVersion.compareTo(charset.minimumVersion) < 0
|| currentChoice.priority < charset.priority && currentChoice.minimumVersion.compareTo(charset.minimumVersion) == 0) {
if (charset.isOkayForVersion(version)) {
currentChoice = charset;
}
}
}
if (currentChoice != null) {
return currentChoice.charsetName;
}
}
return null;
}
public static int getCollationIndexForJavaEncoding(String javaEncoding, ServerVersion version) {
String charsetName = getMysqlCharsetForJavaEncoding(javaEncoding, version);
if (charsetName != null) {
Integer ci = CHARSET_NAME_TO_COLLATION_INDEX.get(charsetName);
if (ci != null) {
return ci.intValue();
}
}
return 0;
}
public static String getMysqlCharsetNameForCollationIndex(Integer collationIndex) {
if (collationIndex != null && collationIndex > 0 && collationIndex < MAP_SIZE) {
return COLLATION_INDEX_TO_CHARSET[collationIndex].charsetName;
}
return null;
}
/**
* MySQL charset could map to several Java encodings.
* So here we choose the one according to next rules:
*
*
if there is no static mapping for this charset then return javaEncoding value as is because this
* could be a custom charset for example
*
if static mapping exists and javaEncoding equals to one of Java encoding canonical names or aliases available
* for this mapping then javaEncoding value as is; this is required when result should match to connection encoding, for example if connection encoding is
* Cp943 we must avoid getting SHIFT_JIS for sjis mysql charset
*
if static mapping exists and javaEncoding doesn't match any Java encoding canonical
* names or aliases available for this mapping then return default Java encoding (the first in mapping list)
*
*
* @param mysqlCharsetName
* MySQL charset name
* @param javaEncoding
* fall-back java encoding name
* @return java encoding name
*/
public static String getJavaEncodingForMysqlCharset(String mysqlCharsetName, String javaEncoding) {
String res = javaEncoding;
MysqlCharset cs = CHARSET_NAME_TO_CHARSET.get(mysqlCharsetName);
if (cs != null) {
res = cs.getMatchingJavaEncoding(javaEncoding);
}
return res;
}
public static String getJavaEncodingForMysqlCharset(String mysqlCharsetName) {
return getJavaEncodingForMysqlCharset(mysqlCharsetName, null);
}
public static String getJavaEncodingForCollationIndex(Integer collationIndex, String javaEncoding) {
if (collationIndex != null && collationIndex > 0 && collationIndex < MAP_SIZE) {
MysqlCharset cs = COLLATION_INDEX_TO_CHARSET[collationIndex];
return cs.getMatchingJavaEncoding(javaEncoding);
}
return null;
}
public static String getJavaEncodingForCollationIndex(Integer collationIndex) {
return getJavaEncodingForCollationIndex(collationIndex, null);
}
public final static int getNumberOfCharsetsConfigured() {
return numberOfEncodingsConfigured;
}
/**
* Does the character set contain multi-byte encoded characters.
*
* @param javaEncodingName
* java encoding name
* @return true if the character set contains multi-byte encoded characters.
*/
final public static boolean isMultibyteCharset(String javaEncodingName) {
return MULTIBYTE_ENCODINGS.contains(javaEncodingName.toUpperCase(Locale.ENGLISH));
}
public static int getMblen(String charsetName) {
if (charsetName != null) {
MysqlCharset cs = CHARSET_NAME_TO_CHARSET.get(charsetName);
if (cs != null) {
return cs.mblen;
}
}
return 0;
}
}
class MysqlCharset {
public final String charsetName;
public final int mblen;
public final int priority;
public final List javaEncodingsUc = new ArrayList<>();
public final ServerVersion minimumVersion;
/**
* Constructs MysqlCharset object
*
* @param charsetName
* MySQL charset name
* @param mblen
* Max number of bytes per character
* @param priority
* MysqlCharset with highest value of this param will be used for Java encoding --> Mysql charsets conversion.
* @param javaEncodings
* List of Java encodings corresponding to this MySQL charset; the first name in list is the default for mysql --> java data conversion
*/
public MysqlCharset(String charsetName, int mblen, int priority, String[] javaEncodings) {
this(charsetName, mblen, priority, javaEncodings, new ServerVersion(0, 0, 0));
}
private void addEncodingMapping(String encoding) {
String encodingUc = encoding.toUpperCase(Locale.ENGLISH);
if (!this.javaEncodingsUc.contains(encodingUc)) {
this.javaEncodingsUc.add(encodingUc);
}
}
public MysqlCharset(String charsetName, int mblen, int priority, String[] javaEncodings, ServerVersion minimumVersion) {
this.charsetName = charsetName;
this.mblen = mblen;
this.priority = priority;
for (int i = 0; i < javaEncodings.length; i++) {
String encoding = javaEncodings[i];
try {
Charset cs = Charset.forName(encoding);
addEncodingMapping(cs.name());
Set als = cs.aliases();
Iterator ali = als.iterator();
while (ali.hasNext()) {
addEncodingMapping(ali.next());
}
} catch (Exception e) {
// if there is no support of this charset in JVM it's still possible to use our converter for 1-byte charsets
if (mblen == 1) {
addEncodingMapping(encoding);
}
}
}
if (this.javaEncodingsUc.size() == 0) {
if (mblen > 1) {
addEncodingMapping("UTF-8");
} else {
addEncodingMapping("Cp1252");
}
}
this.minimumVersion = minimumVersion;
}
@Override
public String toString() {
StringBuilder asString = new StringBuilder();
asString.append("[");
asString.append("charsetName=");
asString.append(this.charsetName);
asString.append(",mblen=");
asString.append(this.mblen);
// asString.append(",javaEncoding=");
// asString.append(this.javaEncodings.toString());
asString.append("]");
return asString.toString();
}
boolean isOkayForVersion(ServerVersion version) {
return version.meetsMinimum(this.minimumVersion);
}
/**
* If javaEncoding parameter value is one of available java encodings for this charset
* then returns javaEncoding value as is. Otherwise returns first available java encoding name.
*
* @param javaEncoding
* java encoding name
* @return java encoding name
*/
String getMatchingJavaEncoding(String javaEncoding) {
if (javaEncoding != null && this.javaEncodingsUc.contains(javaEncoding.toUpperCase(Locale.ENGLISH))) {
return javaEncoding;
}
return this.javaEncodingsUc.get(0);
}
}
class Collation {
public final int index;
public final String collationName;
public final int priority;
public final MysqlCharset mysqlCharset;
public Collation(int index, String collationName, int priority, String charsetName) {
this.index = index;
this.collationName = collationName;
this.priority = priority;
this.mysqlCharset = CharsetMapping.CHARSET_NAME_TO_CHARSET.get(charsetName);
}
@Override
public String toString() {
StringBuilder asString = new StringBuilder();
asString.append("[");
asString.append("index=");
asString.append(this.index);
asString.append(",collationName=");
asString.append(this.collationName);
asString.append(",charsetName=");
asString.append(this.mysqlCharset.charsetName);
asString.append(",javaCharsetName=");
asString.append(this.mysqlCharset.getMatchingJavaEncoding(null));
asString.append("]");
return asString.toString();
}
}
