/* * Copyright (c) 1996, 2010, 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.io;import java.io.*;/** * Convert arrays containing Unicode characters into arrays of bytes, using the * platform-default byte order. * * @author Mark Reinhold */public class CharToByteUnicode extends CharToByteConverter { static final char BYTE_ORDER_MARK = (char) 0xfeff; protected boolean usesMark = true; /* A mark should be written */ private boolean markWritten = false; /* A mark has been written */ static final int UNKNOWN = 0; static final int BIG = 1; static final int LITTLE = 2; protected int byteOrder = UNKNOWN; public CharToByteUnicode() { String enc = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction("sun.io.unicode.encoding", "UnicodeBig")); if (enc.equals("UnicodeBig")) byteOrder = BIG; else if (enc.equals("UnicodeLittle")) byteOrder = LITTLE; else byteOrder = BIG; } public CharToByteUnicode(int byteOrder, boolean usesMark) { this.byteOrder = byteOrder; this.usesMark = usesMark; } public CharToByteUnicode(boolean usesMark) { this(); this.usesMark = usesMark; } public String getCharacterEncoding() { switch (byteOrder) { case BIG: return usesMark ? "UnicodeBig" : "UnicodeBigUnmarked"; case LITTLE: return usesMark ? "UnicodeLittle" : "UnicodeLittleUnmarked"; default: return "UnicodeUnknown"; } } public int convert(char in[], int inOff, int inEnd, byte out[], int outOff, int outEnd) throws ConversionBufferFullException, MalformedInputException { charOff = inOff; byteOff = outOff; if (inOff >= inEnd) return 0; int inI = inOff, outI = outOff, outTop = outEnd - 2; if (usesMark && !markWritten) { if (outI > outTop) throw new ConversionBufferFullException(); if (byteOrder == BIG) { out[outI++] = (byte) (BYTE_ORDER_MARK >> 8); out[outI++] = (byte) (BYTE_ORDER_MARK & 0xff); } else { out[outI++] = (byte) (BYTE_ORDER_MARK & 0xff); out[outI++] = (byte) (BYTE_ORDER_MARK >> 8); } markWritten = true; } if (byteOrder == BIG) { while (inI < inEnd) { if (outI > outTop) { charOff = inI; byteOff = outI; throw new ConversionBufferFullException(); } char c = in[inI++]; out[outI++] = (byte) (c >> 8); out[outI++] = (byte) (c & 0xff); } } else { while (inI < inEnd) { if (outI > outTop) { charOff = inI; byteOff = outI; throw new ConversionBufferFullException(); } char c = in[inI++]; out[outI++] = (byte) (c & 0xff); out[outI++] = (byte) (c >> 8); } } charOff = inI; byteOff = outI; return outI - outOff; } public int flush(byte in[], int inOff, int inEnd) { byteOff = charOff = 0; return 0; } public void reset () { byteOff = charOff = 0; markWritten = false; } public int getMaxBytesPerChar() { return 4; /* To allow for writing the byte-order mark */ }}
/*
* Copyright (c) 1996, 2010, 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.io;
import java.io.*;
/**
* Convert arrays containing Unicode characters into arrays of bytes, using the
* platform-default byte order.
*
* @author Mark Reinhold
*/
public class CharToByteUnicode extends CharToByteConverter {
static final char BYTE_ORDER_MARK = (char) 0xfeff;
protected boolean usesMark = true; /* A mark should be written */
private boolean markWritten = false; /* A mark has been written */
static final int UNKNOWN = 0;
static final int BIG = 1;
static final int LITTLE = 2;
protected int byteOrder = UNKNOWN;
public CharToByteUnicode() {
String enc = java.security.AccessController.doPrivileged(
new sun.security.action.GetPropertyAction("sun.io.unicode.encoding",
"UnicodeBig"));
if (enc.equals("UnicodeBig"))
byteOrder = BIG;
else if (enc.equals("UnicodeLittle"))
byteOrder = LITTLE;
else
byteOrder = BIG;
}
public CharToByteUnicode(int byteOrder, boolean usesMark) {
this.byteOrder = byteOrder;
this.usesMark = usesMark;
}
public CharToByteUnicode(boolean usesMark) {
this();
this.usesMark = usesMark;
}
public String getCharacterEncoding() {
switch (byteOrder) {
case BIG:
return usesMark ? "UnicodeBig" : "UnicodeBigUnmarked";
case LITTLE:
return usesMark ? "UnicodeLittle" : "UnicodeLittleUnmarked";
default:
return "UnicodeUnknown";
}
}
public int convert(char in[], int inOff, int inEnd,
byte out[], int outOff, int outEnd)
throws ConversionBufferFullException, MalformedInputException
{
charOff = inOff;
byteOff = outOff;
if (inOff >= inEnd)
return 0;
int inI = inOff,
outI = outOff,
outTop = outEnd - 2;
if (usesMark && !markWritten) {
if (outI > outTop)
throw new ConversionBufferFullException();
if (byteOrder == BIG) {
out[outI++] = (byte) (BYTE_ORDER_MARK >> 8);
out[outI++] = (byte) (BYTE_ORDER_MARK & 0xff);
}
else {
out[outI++] = (byte) (BYTE_ORDER_MARK & 0xff);
out[outI++] = (byte) (BYTE_ORDER_MARK >> 8);
}
markWritten = true;
}
if (byteOrder == BIG) {
while (inI < inEnd) {
if (outI > outTop) {
charOff = inI;
byteOff = outI;
throw new ConversionBufferFullException();
}
char c = in[inI++];
out[outI++] = (byte) (c >> 8);
out[outI++] = (byte) (c & 0xff);
}
}
else {
while (inI < inEnd) {
if (outI > outTop) {
charOff = inI;
byteOff = outI;
throw new ConversionBufferFullException();
}
char c = in[inI++];
out[outI++] = (byte) (c & 0xff);
out[outI++] = (byte) (c >> 8);
}
}
charOff = inI;
byteOff = outI;
return outI - outOff;
}
public int flush(byte in[], int inOff, int inEnd) {
byteOff = charOff = 0;
return 0;
}
public void reset () {
byteOff = charOff = 0;
markWritten = false;
}
public int getMaxBytesPerChar() {
return 4; /* To allow for writing the byte-order mark */
}
}