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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2008, 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 | +#warn This file is preprocessed before being compiled | |
| 27 | + | |
| 28 | +package java.nio; | |
| 29 | + | |
| 30 | + | |
| 31 | +class ByteBufferAs$Type$Buffer$RW$$BO$ // package-private | |
| 32 | + extends {#if[ro]?ByteBufferAs}$Type$Buffer{#if[ro]?$BO$} | |
| 33 | +{ | |
| 34 | + | |
| 35 | +#if[rw] | |
| 36 | + | |
| 37 | + protected final ByteBuffer bb; | |
| 38 | + protected final int offset; | |
| 39 | + | |
| 40 | +#end[rw] | |
| 41 | + | |
| 42 | + ByteBufferAs$Type$Buffer$RW$$BO$(ByteBuffer bb) { // package-private | |
| 43 | +#if[rw] | |
| 44 | + super(-1, 0, | |
| 45 | + bb.remaining() >> $LG_BYTES_PER_VALUE$, | |
| 46 | + bb.remaining() >> $LG_BYTES_PER_VALUE$); | |
| 47 | + this.bb = bb; | |
| 48 | + // enforce limit == capacity | |
| 49 | + int cap = this.capacity(); | |
| 50 | + this.limit(cap); | |
| 51 | + int pos = this.position(); | |
| 52 | + assert (pos <= cap); | |
| 53 | + offset = pos; | |
| 54 | +#else[rw] | |
| 55 | + super(bb); | |
| 56 | +#end[rw] | |
| 57 | + } | |
| 58 | + | |
| 59 | + ByteBufferAs$Type$Buffer$RW$$BO$(ByteBuffer bb, | |
| 60 | + int mark, int pos, int lim, int cap, | |
| 61 | + int off) | |
| 62 | + { | |
| 63 | +#if[rw] | |
| 64 | + super(mark, pos, lim, cap); | |
| 65 | + this.bb = bb; | |
| 66 | + offset = off; | |
| 67 | +#else[rw] | |
| 68 | + super(bb, mark, pos, lim, cap, off); | |
| 69 | +#end[rw] | |
| 70 | + } | |
| 71 | + | |
| 72 | + public $Type$Buffer slice() { | |
| 73 | + int pos = this.position(); | |
| 74 | + int lim = this.limit(); | |
| 75 | + assert (pos <= lim); | |
| 76 | + int rem = (pos <= lim ? lim - pos : 0); | |
| 77 | + int off = (pos << $LG_BYTES_PER_VALUE$) + offset; | |
| 78 | + assert (off >= 0); | |
| 79 | + return new ByteBufferAs$Type$Buffer$RW$$BO$(bb, -1, 0, rem, rem, off); | |
| 80 | + } | |
| 81 | + | |
| 82 | + public $Type$Buffer duplicate() { | |
| 83 | + return new ByteBufferAs$Type$Buffer$RW$$BO$(bb, | |
| 84 | + this.markValue(), | |
| 85 | + this.position(), | |
| 86 | + this.limit(), | |
| 87 | + this.capacity(), | |
| 88 | + offset); | |
| 89 | + } | |
| 90 | + | |
| 91 | + public $Type$Buffer asReadOnlyBuffer() { | |
| 92 | +#if[rw] | |
| 93 | + return new ByteBufferAs$Type$BufferR$BO$(bb, | |
| 94 | + this.markValue(), | |
| 95 | + this.position(), | |
| 96 | + this.limit(), | |
| 97 | + this.capacity(), | |
| 98 | + offset); | |
| 99 | +#else[rw] | |
| 100 | + return duplicate(); | |
| 101 | +#end[rw] | |
| 102 | + } | |
| 103 | + | |
| 104 | +#if[rw] | |
| 105 | + | |
| 106 | + protected int ix(int i) { | |
| 107 | + return (i << $LG_BYTES_PER_VALUE$) + offset; | |
| 108 | + } | |
| 109 | + | |
| 110 | + public $type$ get() { | |
| 111 | + return Bits.get$Type$$BO$(bb, ix(nextGetIndex())); | |
| 112 | + } | |
| 113 | + | |
| 114 | + public $type$ get(int i) { | |
| 115 | + return Bits.get$Type$$BO$(bb, ix(checkIndex(i))); | |
| 116 | + } | |
| 117 | + | |
| 118 | +#end[rw] | |
| 119 | + | |
| 120 | + public $Type$Buffer put($type$ x) { | |
| 121 | +#if[rw] | |
| 122 | + Bits.put$Type$$BO$(bb, ix(nextPutIndex()), x); | |
| 123 | + return this; | |
| 124 | +#else[rw] | |
| 125 | + throw new ReadOnlyBufferException(); | |
| 126 | +#end[rw] | |
| 127 | + } | |
| 128 | + | |
| 129 | + public $Type$Buffer put(int i, $type$ x) { | |
| 130 | +#if[rw] | |
| 131 | + Bits.put$Type$$BO$(bb, ix(checkIndex(i)), x); | |
| 132 | + return this; | |
| 133 | +#else[rw] | |
| 134 | + throw new ReadOnlyBufferException(); | |
| 135 | +#end[rw] | |
| 136 | + } | |
| 137 | + | |
| 138 | + public $Type$Buffer compact() { | |
| 139 | +#if[rw] | |
| 140 | + int pos = position(); | |
| 141 | + int lim = limit(); | |
| 142 | + assert (pos <= lim); | |
| 143 | + int rem = (pos <= lim ? lim - pos : 0); | |
| 144 | + | |
| 145 | + ByteBuffer db = bb.duplicate(); | |
| 146 | + db.limit(ix(lim)); | |
| 147 | + db.position(ix(0)); | |
| 148 | + ByteBuffer sb = db.slice(); | |
| 149 | + sb.position(pos << $LG_BYTES_PER_VALUE$); | |
| 150 | + sb.compact(); | |
| 151 | + position(rem); | |
| 152 | + limit(capacity()); | |
| 153 | + discardMark(); | |
| 154 | + return this; | |
| 155 | +#else[rw] | |
| 156 | + throw new ReadOnlyBufferException(); | |
| 157 | +#end[rw] | |
| 158 | + } | |
| 159 | + | |
| 160 | + public boolean isDirect() { | |
| 161 | + return bb.isDirect(); | |
| 162 | + } | |
| 163 | + | |
| 164 | + public boolean isReadOnly() { | |
| 165 | + return {#if[rw]?false:true}; | |
| 166 | + } | |
| 167 | + | |
| 168 | +#if[char] | |
| 169 | + | |
| 170 | + public String toString(int start, int end) { | |
| 171 | + if ((end > limit()) || (start > end)) | |
| 172 | + throw new IndexOutOfBoundsException(); | |
| 173 | + try { | |
| 174 | + int len = end - start; | |
| 175 | + char[] ca = new char[len]; | |
| 176 | + CharBuffer cb = CharBuffer.wrap(ca); | |
| 177 | + CharBuffer db = this.duplicate(); | |
| 178 | + db.position(start); | |
| 179 | + db.limit(end); | |
| 180 | + cb.put(db); | |
| 181 | + return new String(ca); | |
| 182 | + } catch (StringIndexOutOfBoundsException x) { | |
| 183 | + throw new IndexOutOfBoundsException(); | |
| 184 | + } | |
| 185 | + } | |
| 186 | + | |
| 187 | + | |
| 188 | + // --- Methods to support CharSequence --- | |
| 189 | + | |
| 190 | + public CharBuffer subSequence(int start, int end) { | |
| 191 | + int pos = position(); | |
| 192 | + int lim = limit(); | |
| 193 | + assert (pos <= lim); | |
| 194 | + pos = (pos <= lim ? pos : lim); | |
| 195 | + int len = lim - pos; | |
| 196 | + | |
| 197 | + if ((start < 0) || (end > len) || (start > end)) | |
| 198 | + throw new IndexOutOfBoundsException(); | |
| 199 | + return new ByteBufferAsCharBuffer$RW$$BO$(bb, | |
| 200 | + -1, | |
| 201 | + pos + start, | |
| 202 | + pos + end, | |
| 203 | + capacity(), | |
| 204 | + offset); | |
| 205 | + } | |
| 206 | + | |
| 207 | +#end[char] | |
| 208 | + | |
| 209 | + | |
| 210 | + public ByteOrder order() { | |
| 211 | +#if[boB] | |
| 212 | + return ByteOrder.BIG_ENDIAN; | |
| 213 | +#end[boB] | |
| 214 | +#if[boL] | |
| 215 | + return ByteOrder.LITTLE_ENDIAN; | |
| 216 | +#end[boL] | |
| 217 | + } | |
| 218 | + | |
| 219 | +} | |