diff -r e2d47cad2647 -r e09be02771b6 jdk/src/share/classes/java/nio/ByteBufferAs-X-Buffer.java.template --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/share/classes/java/nio/ByteBufferAs-X-Buffer.java.template Wed Oct 28 12:54:37 2009 -0700 @@ -0,0 +1,219 @@ +/* + * Copyright 2000-2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code 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 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +#warn This file is preprocessed before being compiled + +package java.nio; + + +class ByteBufferAs$Type$Buffer$RW$$BO$ // package-private + extends {#if[ro]?ByteBufferAs}$Type$Buffer{#if[ro]?$BO$} +{ + +#if[rw] + + protected final ByteBuffer bb; + protected final int offset; + +#end[rw] + + ByteBufferAs$Type$Buffer$RW$$BO$(ByteBuffer bb) { // package-private +#if[rw] + super(-1, 0, + bb.remaining() >> $LG_BYTES_PER_VALUE$, + bb.remaining() >> $LG_BYTES_PER_VALUE$); + this.bb = bb; + // enforce limit == capacity + int cap = this.capacity(); + this.limit(cap); + int pos = this.position(); + assert (pos <= cap); + offset = pos; +#else[rw] + super(bb); +#end[rw] + } + + ByteBufferAs$Type$Buffer$RW$$BO$(ByteBuffer bb, + int mark, int pos, int lim, int cap, + int off) + { +#if[rw] + super(mark, pos, lim, cap); + this.bb = bb; + offset = off; +#else[rw] + super(bb, mark, pos, lim, cap, off); +#end[rw] + } + + public $Type$Buffer slice() { + int pos = this.position(); + int lim = this.limit(); + assert (pos <= lim); + int rem = (pos <= lim ? lim - pos : 0); + int off = (pos << $LG_BYTES_PER_VALUE$) + offset; + assert (off >= 0); + return new ByteBufferAs$Type$Buffer$RW$$BO$(bb, -1, 0, rem, rem, off); + } + + public $Type$Buffer duplicate() { + return new ByteBufferAs$Type$Buffer$RW$$BO$(bb, + this.markValue(), + this.position(), + this.limit(), + this.capacity(), + offset); + } + + public $Type$Buffer asReadOnlyBuffer() { +#if[rw] + return new ByteBufferAs$Type$BufferR$BO$(bb, + this.markValue(), + this.position(), + this.limit(), + this.capacity(), + offset); +#else[rw] + return duplicate(); +#end[rw] + } + +#if[rw] + + protected int ix(int i) { + return (i << $LG_BYTES_PER_VALUE$) + offset; + } + + public $type$ get() { + return Bits.get$Type$$BO$(bb, ix(nextGetIndex())); + } + + public $type$ get(int i) { + return Bits.get$Type$$BO$(bb, ix(checkIndex(i))); + } + +#end[rw] + + public $Type$Buffer put($type$ x) { +#if[rw] + Bits.put$Type$$BO$(bb, ix(nextPutIndex()), x); + return this; +#else[rw] + throw new ReadOnlyBufferException(); +#end[rw] + } + + public $Type$Buffer put(int i, $type$ x) { +#if[rw] + Bits.put$Type$$BO$(bb, ix(checkIndex(i)), x); + return this; +#else[rw] + throw new ReadOnlyBufferException(); +#end[rw] + } + + public $Type$Buffer compact() { +#if[rw] + int pos = position(); + int lim = limit(); + assert (pos <= lim); + int rem = (pos <= lim ? lim - pos : 0); + + ByteBuffer db = bb.duplicate(); + db.limit(ix(lim)); + db.position(ix(0)); + ByteBuffer sb = db.slice(); + sb.position(pos << $LG_BYTES_PER_VALUE$); + sb.compact(); + position(rem); + limit(capacity()); + discardMark(); + return this; +#else[rw] + throw new ReadOnlyBufferException(); +#end[rw] + } + + public boolean isDirect() { + return bb.isDirect(); + } + + public boolean isReadOnly() { + return {#if[rw]?false:true}; + } + +#if[char] + + public String toString(int start, int end) { + if ((end > limit()) || (start > end)) + throw new IndexOutOfBoundsException(); + try { + int len = end - start; + char[] ca = new char[len]; + CharBuffer cb = CharBuffer.wrap(ca); + CharBuffer db = this.duplicate(); + db.position(start); + db.limit(end); + cb.put(db); + return new String(ca); + } catch (StringIndexOutOfBoundsException x) { + throw new IndexOutOfBoundsException(); + } + } + + + // --- Methods to support CharSequence --- + + public CharBuffer subSequence(int start, int end) { + int pos = position(); + int lim = limit(); + assert (pos <= lim); + pos = (pos <= lim ? pos : lim); + int len = lim - pos; + + if ((start < 0) || (end > len) || (start > end)) + throw new IndexOutOfBoundsException(); + return new ByteBufferAsCharBuffer$RW$$BO$(bb, + -1, + pos + start, + pos + end, + capacity(), + offset); + } + +#end[char] + + + public ByteOrder order() { +#if[boB] + return ByteOrder.BIG_ENDIAN; +#end[boB] +#if[boL] + return ByteOrder.LITTLE_ENDIAN; +#end[boL] + } + +}