--- a/jdk/src/jdk.charsets/share/classes/sun/nio/cs/ext/DoubleByteEncoder.java Mon Apr 13 19:39:40 2015 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,241 +0,0 @@
-/*
- * Copyright (c) 2002, 2006, Oracle and/or its affiliates. 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. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- */
-
-package sun.nio.cs.ext;
-
-import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetEncoder;
-import java.nio.charset.CoderResult;
-import sun.nio.cs.Surrogate;
-
-public abstract class DoubleByteEncoder
- extends CharsetEncoder
-{
-
- private short index1[];
- private String index2[];
-
- private final Surrogate.Parser sgp = new Surrogate.Parser();
-
- protected DoubleByteEncoder(Charset cs,
- short[] index1, String[] index2)
- {
- super(cs, 2.0f, 2.0f);
- this.index1 = index1;
- this.index2 = index2;
- }
-
- protected DoubleByteEncoder(Charset cs,
- short[] index1, String[] index2,
- float avg, float max)
- {
- super(cs, avg, max);
- this.index1 = index1;
- this.index2 = index2;
- }
-
- protected DoubleByteEncoder(Charset cs,
- short[] index1, String[] index2, byte[] repl)
- {
- super(cs, 2.0f, 2.0f, repl);
- this.index1 = index1;
- this.index2 = index2;
- }
-
-
- protected DoubleByteEncoder(Charset cs,
- short[] index1, String[] index2,
- byte[] repl, float avg, float max)
- {
- super(cs, avg, max,repl);
- this.index1 = index1;
- this.index2 = index2;
- }
-
- public boolean canEncode(char c) {
- return (encodeSingle(c) != -1 ||
- encodeDouble(c) != 0);
- }
-
- private CoderResult encodeArrayLoop(CharBuffer src, ByteBuffer dst) {
- char[] sa = src.array();
- int sp = src.arrayOffset() + src.position();
- int sl = src.arrayOffset() + src.limit();
- byte[] da = dst.array();
- int dp = dst.arrayOffset() + dst.position();
- int dl = dst.arrayOffset() + dst.limit();
-
- try {
- while (sp < sl) {
- char c = sa[sp];
- if (Character.isSurrogate(c)) {
- if (sgp.parse(c, sa, sp, sl) < 0)
- return sgp.error();
- if (sl - sp < 2)
- return CoderResult.UNDERFLOW;
- char c2 = sa[sp + 1];
-
- byte[] outputBytes = new byte[2];
- outputBytes = encodeSurrogate(c, c2);
-
- if (outputBytes == null) {
- return sgp.unmappableResult();
- }
- else {
- if (dl - dp < 2)
- return CoderResult.OVERFLOW;
- da[dp++] = outputBytes[0];
- da[dp++] = outputBytes[1];
- sp += 2;
- continue;
- }
- }
- if (c >= '\uFFFE')
- return CoderResult.unmappableForLength(1);
-
- int b = encodeSingle(c);
- if (b != -1) { // Single Byte
- if (dl - dp < 1)
- return CoderResult.OVERFLOW;
- da[dp++] = (byte)b;
- sp++;
- continue;
- }
-
- int ncode = encodeDouble(c);
- if (ncode != 0 && c != '\u0000' ) {
- if (dl - dp < 2)
- return CoderResult.OVERFLOW;
- da[dp++] = (byte) ((ncode & 0xff00) >> 8);
- da[dp++] = (byte) (ncode & 0xff);
- sp++;
- continue;
- }
- return CoderResult.unmappableForLength(1);
- }
- return CoderResult.UNDERFLOW;
- } finally {
- src.position(sp - src.arrayOffset());
- dst.position(dp - dst.arrayOffset());
- }
- }
-
- private CoderResult encodeBufferLoop(CharBuffer src, ByteBuffer dst) {
- int mark = src.position();
-
- try {
- while (src.hasRemaining()) {
- char c = src.get();
- if (Character.isSurrogate(c)) {
- int surr;
- if ((surr = sgp.parse(c, src)) < 0)
- return sgp.error();
- char c2 = Surrogate.low(surr);
- byte[] outputBytes = new byte[2];
- outputBytes = encodeSurrogate(c, c2);
-
- if (outputBytes == null) {
- return sgp.unmappableResult();
- } else {
- if (dst.remaining() < 2)
- return CoderResult.OVERFLOW;
- mark += 2;
- dst.put(outputBytes[0]);
- dst.put(outputBytes[1]);
- continue;
- }
- }
- if (c >= '\uFFFE')
- return CoderResult.unmappableForLength(1);
- int b = encodeSingle(c);
-
- if (b != -1) { // Single-byte character
- if (dst.remaining() < 1)
- return CoderResult.OVERFLOW;
- mark++;
- dst.put((byte)b);
- continue;
- }
- // Double Byte character
-
- int ncode = encodeDouble(c);
- if (ncode != 0 && c != '\u0000') {
- if (dst.remaining() < 2)
- return CoderResult.OVERFLOW;
- mark++;
- dst.put((byte) ((ncode & 0xff00) >> 8));
- dst.put((byte) ncode);
- continue;
- }
- return CoderResult.unmappableForLength(1);
- }
-
- return CoderResult.UNDERFLOW;
- } finally {
- src.position(mark);
- }
- }
-
- protected CoderResult encodeLoop(CharBuffer src, ByteBuffer dst) {
- if (true && src.hasArray() && dst.hasArray())
- return encodeArrayLoop(src, dst);
- else
- return encodeBufferLoop(src, dst);
- }
-
- /*
- * Can be changed by subclass
- */
- protected int encodeDouble(char ch) {
- int offset = index1[((ch & 0xff00) >> 8 )] << 8;
- return index2[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
- }
-
- /*
- * Can be changed by subclass
- */
- protected int encodeSingle(char inputChar) {
- if (inputChar < 0x80)
- return (byte)inputChar;
- else
- return -1;
- }
-
- /**
- * Protected method which should be overridden by concrete DBCS
- * CharsetEncoder classes which included supplementary characters
- * within their mapping coverage.
- * null return value indicates surrogate values could not be
- * handled or encoded.
- */
- protected byte[] encodeSurrogate(char highSurrogate, char lowSurrogate) {
- return null;
- }
-}