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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 | } | ||