001: /*
002:
003: Derby - Class org.apache.derby.impl.drda.EbcdicCcsidManager
004:
005: Licensed to the Apache Software Foundation (ASF) under one or more
006: contributor license agreements. See the NOTICE file distributed with
007: this work for additional information regarding copyright ownership.
008: The ASF licenses this file to You under the Apache License, Version 2.0
009: (the "License"); you may not use this file except in compliance with
010: the License. You may obtain a copy of the License at
011:
012: http://www.apache.org/licenses/LICENSE-2.0
013:
014: Unless required by applicable law or agreed to in writing, software
015: distributed under the License is distributed on an "AS IS" BASIS,
016: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017: See the License for the specific language governing permissions and
018: limitations under the License.
019:
020: */
021:
022: package org.apache.derby.impl.drda;
023:
024: /**
025: * A concrete implementation of a CcsidMgr used to convert
026: * between Java UCS2 and Ebcdic as needed to handle character
027: * DDM Parameters. This implementation only supports converting
028: * from the ASCII invariant of UNICODE to Ebcdic. This should
029: * be fine since this class is intended for converting
030: * DDM Parameter data only.
031: */
032: class EbcdicCcsidManager extends CcsidManager {
033: private static final int[] conversionArrayToEbcdic = { 0x0000,
034: 0x0001, 0x0002, 0x0003, 0x0037, 0x002d, 0x002e, 0x002f,
035: 0x0016, 0x0005, 0x0025, 0x000b, 0x000c, 0x000d, 0x000e,
036: 0x000f, 0x0010, 0x0011, 0x0012, 0x0013, 0x003c, 0x003d,
037: 0x0032, 0x0026, 0x0018, 0x0019, 0x003f, 0x0027, 0x001c,
038: 0x001d, 0x001e, 0x001f, 0x0040, 0x004f, 0x007f, 0x007b,
039: 0x005b, 0x006c, 0x0050, 0x007d, 0x004d, 0x005d, 0x005c,
040: 0x004e, 0x006b, 0x0060, 0x004b, 0x0061, 0x00f0, 0x00f1,
041: 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7, 0x00f8,
042: 0x00f9, 0x007a, 0x005e, 0x004c, 0x007e, 0x006e, 0x006f,
043: 0x007c, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6,
044: 0x00c7, 0x00c8, 0x00c9, 0x00d1, 0x00d2, 0x00d3, 0x00d4,
045: 0x00d5, 0x00d6, 0x00d7, 0x00d8, 0x00d9, 0x00e2, 0x00e3,
046: 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9, 0x004a,
047: 0x00e0, 0x005a, 0x005f, 0x006d, 0x0079, 0x0081, 0x0082,
048: 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, 0x0088, 0x0089,
049: 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
050: 0x0098, 0x0099, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6,
051: 0x00a7, 0x00a8, 0x00a9, 0x00c0, 0x00bb, 0x00d0, 0x00a1,
052: 0x0007, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0015,
053: 0x0006, 0x0017, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c,
054: 0x0009, 0x000a, 0x001b, 0x0030, 0x0031, 0x001a, 0x0033,
055: 0x0034, 0x0035, 0x0036, 0x0008, 0x0038, 0x0039, 0x003a,
056: 0x003b, 0x0004, 0x0014, 0x003e, 0x00ff, 0x0041, 0x00aa,
057: 0x00b0, 0x00b1, 0x009f, 0x00b2, 0x006a, 0x00b5, 0x00bd,
058: 0x00b4, 0x009a, 0x008a, 0x00ba, 0x00ca, 0x00af, 0x00bc,
059: 0x0090, 0x008f, 0x00ea, 0x00fa, 0x00be, 0x00a0, 0x00b6,
060: 0x00b3, 0x009d, 0x00da, 0x009b, 0x008b, 0x00b7, 0x00b8,
061: 0x00b9, 0x00ab, 0x0064, 0x0065, 0x0062, 0x0066, 0x0063,
062: 0x0067, 0x009e, 0x0068, 0x0074, 0x0071, 0x0072, 0x0073,
063: 0x0078, 0x0075, 0x0076, 0x0077, 0x00ac, 0x0069, 0x00ed,
064: 0x00ee, 0x00eb, 0x00ef, 0x00ec, 0x00bf, 0x0080, 0x00fd,
065: 0x00fe, 0x00fb, 0x00fc, 0x00ad, 0x00ae, 0x0059, 0x0044,
066: 0x0045, 0x0042, 0x0046, 0x0043, 0x0047, 0x009c, 0x0048,
067: 0x0054, 0x0051, 0x0052, 0x0053, 0x0058, 0x0055, 0x0056,
068: 0x0057, 0x008c, 0x0049, 0x00cd, 0x00ce, 0x00cb, 0x00cf,
069: 0x00cc, 0x00e1, 0x0070, 0x00dd, 0x00de, 0x00db, 0x00dc,
070: 0x008d, 0x008e, 0x00df };
071:
072: private static final int[] conversionArrayToUCS2 = { 0x0000,
073: 0x0001, 0x0002, 0x0003, 0x009C, 0x0009, 0x0086, 0x007F,
074: 0x0097, 0x008D, 0x008E, 0x000B, 0x000C, 0x000D, 0x000E,
075: 0x000F, 0x0010, 0x0011, 0x0012, 0x0013, 0x009D, 0x0085,
076: 0x0008, 0x0087, 0x0018, 0x0019, 0x0092, 0x008F, 0x001C,
077: 0x001D, 0x001E, 0x001F, 0x0080, 0x0081, 0x0082, 0x0083,
078: 0x0084, 0x000A, 0x0017, 0x001B, 0x0088, 0x0089, 0x008A,
079: 0x008B, 0x008C, 0x0005, 0x0006, 0x0007, 0x0090, 0x0091,
080: 0x0016, 0x0093, 0x0094, 0x0095, 0x0096, 0x0004, 0x0098,
081: 0x0099, 0x009A, 0x009B, 0x0014, 0x0015, 0x009E, 0x001A,
082: 0x0020, 0x00A0, 0x00E2, 0x00E4, 0x00E0, 0x00E1, 0x00E3,
083: 0x00E5, 0x00E7, 0x00F1, 0x005B, 0x002E, 0x003C, 0x0028,
084: 0x002B, 0x0021, 0x0026, 0x00E9, 0x00EA, 0x00EB, 0x00E8,
085: 0x00ED, 0x00EE, 0x00EF, 0x00EC, 0x00DF, 0x005D, 0x0024,
086: 0x002A, 0x0029, 0x003B, 0x005E, 0x002D, 0x002F, 0x00C2,
087: 0x00C4, 0x00C0, 0x00C1, 0x00C3, 0x00C5, 0x00C7, 0x00D1,
088: 0x00A6, 0x002C, 0x0025, 0x005F, 0x003E, 0x003F, 0x00F8,
089: 0x00C9, 0x00CA, 0x00CB, 0x00C8, 0x00CD, 0x00CE, 0x00CF,
090: 0x00CC, 0x0060, 0x003A, 0x0023, 0x0040, 0x0027, 0x003D,
091: 0x0022, 0x00D8, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065,
092: 0x0066, 0x0067, 0x0068, 0x0069, 0x00AB, 0x00BB, 0x00F0,
093: 0x00FD, 0x00FE, 0x00B1, 0x00B0, 0x006A, 0x006B, 0x006C,
094: 0x006D, 0x006E, 0x006F, 0x0070, 0x0071, 0x0072, 0x00AA,
095: 0x00BA, 0x00E6, 0x00B8, 0x00C6, 0x00A4, 0x00B5, 0x007E,
096: 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 0x0078, 0x0079,
097: 0x007A, 0x00A1, 0x00BF, 0x00D0, 0x00DD, 0x00DE, 0x00AE,
098: 0x00A2, 0x00A3, 0x00A5, 0x00B7, 0x00A9, 0x00A7, 0x00B6,
099: 0x00BC, 0x00BD, 0x00BE, 0x00AC, 0x007C, 0x00AF, 0x00A8,
100: 0x00B4, 0x00D7, 0x007B, 0x0041, 0x0042, 0x0043, 0x0044,
101: 0x0045, 0x0046, 0x0047, 0x0048, 0x0049, 0x00AD, 0x00F4,
102: 0x00F6, 0x00F2, 0x00F3, 0x00F5, 0x007D, 0x004A, 0x004B,
103: 0x004C, 0x004D, 0x004E, 0x004F, 0x0050, 0x0051, 0x0052,
104: 0x00B9, 0x00FB, 0x00FC, 0x00F9, 0x00FA, 0x00FF, 0x005C,
105: 0x00F7, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058,
106: 0x0059, 0x005A, 0x00B2, 0x00D4, 0x00D6, 0x00D2, 0x00D3,
107: 0x00D5, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
108: 0x0036, 0x0037, 0x0038, 0x0039, 0x00B3, 0x00DB, 0x00DC,
109: 0x00D9, 0x00DA, 0x009F };
110:
111: EbcdicCcsidManager() {
112: super ((byte) 0x40, // 0x40 is the ebcdic space character
113: (byte) 0x4B, new byte[] {
114: // '0', '1', '2', '3', '4',
115: (byte) 0xf0,
116: (byte) 0xf1,
117: (byte) 0xf2,
118: (byte) 0xf3,
119: (byte) 0xf4,
120: // '5', '6', '7', '8', '9',
121: (byte) 0xf5, (byte) 0xf6,
122: (byte) 0xf7,
123: (byte) 0xf8,
124: (byte) 0xf9,
125: // 'A', 'B', 'C', 'D', 'E',
126: (byte) 0xc1, (byte) 0xc2, (byte) 0xc3,
127: (byte) 0xc4,
128: (byte) 0xc5,
129: // 'F', 'G', 'H', 'I', 'J',
130: (byte) 0xc6, (byte) 0xc7, (byte) 0xc8,
131: (byte) 0xc9, (byte) 0xd1,
132: // 'K', 'L', 'M', 'N', 'O',
133: (byte) 0xd2, (byte) 0xd3, (byte) 0xd4,
134: (byte) 0xd5, (byte) 0xd6,
135: // 'P'
136: (byte) 0xd7 });
137: }
138:
139: byte[] convertFromUCS2(String sourceString) {
140: byte[] bytes = new byte[sourceString.length()];
141: convertFromUCS2(sourceString, bytes, 0);
142: return bytes;
143: }
144:
145: int convertFromUCS2(String sourceString, byte[] buffer, int offset) {
146: for (int i = 0; i < sourceString.length(); i++) {
147: char c = sourceString.charAt(i);
148: if (c > 0xff)
149: buffer[offset++] = (byte) 63; // what's this ???
150: else
151: buffer[offset++] = (byte) (conversionArrayToEbcdic[c]);
152: ;
153: }
154:
155: return offset;
156: }
157:
158: String convertToUCS2(byte[] sourceBytes) {
159: int i = 0;
160: char[] theChars = new char[sourceBytes.length];
161: int num = 0;
162:
163: for (i = 0; i < sourceBytes.length; i++) {
164: num = (sourceBytes[i] < 0) ? (sourceBytes[i] + 256)
165: : sourceBytes[i];
166: theChars[i] = (char) conversionArrayToUCS2[num];
167: }
168:
169: return new String(theChars);
170: }
171:
172: String convertToUCS2(byte[] sourceBytes, int offset,
173: int numToConvert) {
174: int i = 0, j = 0;
175: char[] theChars = new char[numToConvert];
176: int num = 0;
177:
178: for (i = offset; i < (offset + numToConvert); i++) {
179: num = (sourceBytes[i] < 0) ? (sourceBytes[i] + 256)
180: : sourceBytes[i];
181: theChars[j] = (char) conversionArrayToUCS2[num];
182: j++;
183: }
184: return new String(theChars);
185: }
186:
187: }
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