Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/classes/com/sun/codemodel/internal/util/SingleByteEncoder.java
src/share/classes/com/sun/codemodel/internal/util/SingleByteEncoder.java
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| 1 /* | |
| 2 * Copyright 2006 Sun Microsystems, Inc. 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. Sun designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 22 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 23 * have any questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.codemodel.internal.util; | |
| 27 | |
| 28 import java.nio.ByteBuffer; | |
| 29 import java.nio.CharBuffer; | |
| 30 import java.nio.charset.Charset; | |
| 31 import java.nio.charset.CharsetEncoder; | |
| 32 import java.nio.charset.CoderResult; | |
| 33 | |
| 34 import sun.nio.cs.Surrogate; | |
| 35 | |
| 36 | |
| 37 abstract class SingleByteEncoder | |
| 38 extends CharsetEncoder | |
| 39 { | |
| 40 | |
| 41 private final short index1[]; | |
| 42 private final String index2; | |
| 43 private final int mask1; | |
| 44 private final int mask2; | |
| 45 private final int shift; | |
| 46 | |
| 47 private final Surrogate.Parser sgp = new Surrogate.Parser(); | |
| 48 | |
| 49 protected SingleByteEncoder(Charset cs, | |
| 50 short[] index1, String index2, | |
| 51 int mask1, int mask2, int shift) | |
| 52 { | |
| 53 super(cs, 1.0f, 1.0f); | |
| 54 this.index1 = index1; | |
| 55 this.index2 = index2; | |
| 56 this.mask1 = mask1; | |
| 57 this.mask2 = mask2; | |
| 58 this.shift = shift; | |
| 59 } | |
| 60 | |
| 61 public boolean canEncode(char c) { | |
| 62 char testEncode; | |
| 63 testEncode = index2.charAt(index1[(c & mask1) >> shift] | |
| 64 + (c & mask2)); | |
| 65 if (testEncode == '\u0000') | |
| 66 return false; | |
| 67 else | |
| 68 return true; | |
| 69 } | |
| 70 | |
| 71 private CoderResult encodeArrayLoop(CharBuffer src, ByteBuffer dst) { | |
| 72 char[] sa = src.array(); | |
| 73 int sp = src.arrayOffset() + src.position(); | |
| 74 int sl = src.arrayOffset() + src.limit(); | |
| 75 sp = (sp <= sl ? sp : sl); | |
| 76 byte[] da = dst.array(); | |
| 77 int dp = dst.arrayOffset() + dst.position(); | |
| 78 int dl = dst.arrayOffset() + dst.limit(); | |
| 79 dp = (dp <= dl ? dp : dl); | |
| 80 | |
| 81 try { | |
| 82 while (sp < sl) { | |
| 83 char c = sa[sp]; | |
| 84 if (Surrogate.is(c)) { | |
| 85 if (sgp.parse(c, sa, sp, sl) < 0) | |
| 86 return sgp.error(); | |
| 87 return sgp.unmappableResult(); | |
| 88 } | |
| 89 if (c >= '\uFFFE') | |
| 90 return CoderResult.unmappableForLength(1); | |
| 91 if (dl - dp < 1) | |
| 92 return CoderResult.OVERFLOW; | |
| 93 | |
| 94 char e = index2.charAt(index1[(c & mask1) >> shift] | |
| 95 + (c & mask2)); | |
| 96 | |
| 97 // If output byte is zero because input char is zero | |
| 98 // then character is mappable, o.w. fail | |
| 99 if (e == '\u0000' && c != '\u0000') | |
| 100 return CoderResult.unmappableForLength(1); | |
| 101 | |
| 102 sp++; | |
| 103 da[dp++] = (byte)e; | |
| 104 } | |
| 105 return CoderResult.UNDERFLOW; | |
| 106 } finally { | |
| 107 src.position(sp - src.arrayOffset()); | |
| 108 dst.position(dp - dst.arrayOffset()); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 private CoderResult encodeBufferLoop(CharBuffer src, ByteBuffer dst) { | |
| 113 int mark = src.position(); | |
| 114 try { | |
| 115 while (src.hasRemaining()) { | |
| 116 char c = src.get(); | |
| 117 if (Surrogate.is(c)) { | |
| 118 if (sgp.parse(c, src) < 0) | |
| 119 return sgp.error(); | |
| 120 return sgp.unmappableResult(); | |
| 121 } | |
| 122 if (c >= '\uFFFE') | |
| 123 return CoderResult.unmappableForLength(1); | |
| 124 if (!dst.hasRemaining()) | |
| 125 return CoderResult.OVERFLOW; | |
| 126 | |
| 127 char e = index2.charAt(index1[(c & mask1) >> shift] | |
| 128 + (c & mask2)); | |
| 129 | |
| 130 // If output byte is zero because input char is zero | |
| 131 // then character is mappable, o.w. fail | |
| 132 if (e == '\u0000' && c != '\u0000') | |
| 133 return CoderResult.unmappableForLength(1); | |
| 134 | |
| 135 mark++; | |
| 136 dst.put((byte)e); | |
| 137 } | |
| 138 return CoderResult.UNDERFLOW; | |
| 139 } finally { | |
| 140 src.position(mark); | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 protected CoderResult encodeLoop(CharBuffer src, ByteBuffer dst) { | |
| 145 if (true && src.hasArray() && dst.hasArray()) | |
| 146 return encodeArrayLoop(src, dst); | |
| 147 else | |
| 148 return encodeBufferLoop(src, dst); | |
| 149 } | |
| 150 | |
| 151 public byte encode(char inputChar) { | |
| 152 return (byte)index2.charAt(index1[(inputChar & mask1) >> shift] + | |
| 153 (inputChar & mask2)); | |
| 154 } | |
| 155 } |
