0N/A/*
3261N/A * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/Apackage sun.io;
0N/A
1245N/Aimport sun.nio.cs.ext.DoubleByte;
1245N/Aimport static sun.nio.cs.CharsetMapping.*;
1245N/A
0N/Apublic abstract class CharToByteDBCS_EBCDIC extends CharToByteConverter
0N/A{
0N/A private static final int SBCS = 0;
0N/A private static final int DBCS = 1;
0N/A
0N/A private static final byte SO = 0x0e;
0N/A private static final byte SI = 0x0f;
0N/A
0N/A private int currentState;
0N/A private char highHalfZoneCode;
0N/A private byte[] outputByte = new byte[2];
0N/A
1245N/A private DoubleByte.Encoder enc;
0N/A
1245N/A public CharToByteDBCS_EBCDIC(DoubleByte.Encoder enc) {
0N/A super();
0N/A highHalfZoneCode = 0;
0N/A currentState = SBCS;
1245N/A this.enc = enc;
1245N/A }
1245N/A
1245N/A int encodeChar(char c) {
1245N/A return enc.encodeChar(c);
0N/A }
0N/A
0N/A /**
0N/A * flush out any residual data and reset the buffer state
0N/A */
0N/A public int flush(byte [] output, int outStart, int outEnd)
0N/A throws MalformedInputException, ConversionBufferFullException
0N/A {
0N/A int bytesOut = 0;
0N/A
0N/A if (highHalfZoneCode != 0) {
0N/A reset();
0N/A badInputLength = 0;
0N/A throw new MalformedInputException();
0N/A }
0N/A
0N/A if (currentState == DBCS) {
0N/A if (outStart >= outEnd)
0N/A throw new ConversionBufferFullException();
0N/A output[outStart] = SI;
0N/A bytesOut++;
0N/A }
0N/A
0N/A reset();
0N/A return bytesOut;
0N/A }
0N/A
0N/A /**
0N/A * Character conversion
0N/A */
0N/A public int convert(char[] input, int inOff, int inEnd,
0N/A byte[] output, int outOff, int outEnd)
0N/A throws UnknownCharacterException, MalformedInputException,
0N/A ConversionBufferFullException
0N/A {
0N/A char inputChar;
0N/A int inputSize;
0N/A
0N/A byteOff = outOff;
0N/A charOff = inOff;
0N/A
0N/A while(charOff < inEnd) {
0N/A
0N/A int index;
0N/A int theBytes;
0N/A int spaceNeeded;
0N/A
0N/A if (highHalfZoneCode == 0) {
0N/A inputChar = input[charOff];
0N/A inputSize = 1;
0N/A } else {
0N/A inputChar = highHalfZoneCode;
0N/A inputSize = 0;
0N/A highHalfZoneCode = 0;
0N/A }
0N/A
0N/A // Is this a high surrogate?
1602N/A if (Character.isHighSurrogate(inputChar)) {
0N/A // Is this the last character of the input?
0N/A if (charOff + inputSize >= inEnd) {
0N/A highHalfZoneCode = inputChar;
0N/A charOff += inputSize;
0N/A break;
0N/A }
0N/A
0N/A // Is there a low surrogate following?
0N/A inputChar = input[charOff + inputSize];
1602N/A if (Character.isLowSurrogate(inputChar)) {
0N/A // We have a valid surrogate pair. Too bad we don't do
0N/A // surrogates. Is substitution enabled?
0N/A if (subMode) {
0N/A if (subBytes.length == 1) {
0N/A outputByte[0] = 0x00;
0N/A outputByte[1] = subBytes[0];
0N/A }
0N/A else {
0N/A outputByte[0] = subBytes[0];
0N/A outputByte[1] = subBytes[1];
0N/A }
0N/A inputSize++;
0N/A } else {
0N/A badInputLength = 2;
0N/A throw new UnknownCharacterException();
0N/A }
0N/A } else {
0N/A // We have a malformed surrogate pair
0N/A badInputLength = 1;
0N/A throw new MalformedInputException();
0N/A }
0N/A }
0N/A // Is this an unaccompanied low surrogate?
1602N/A else if (Character.isLowSurrogate(inputChar)) {
1245N/A badInputLength = 1;
1245N/A throw new MalformedInputException();
1245N/A } else {
0N/A
1245N/A // We have a valid character, get the bytes for it
1245N/A theBytes = encodeChar(inputChar);
1245N/A if (theBytes == UNMAPPABLE_ENCODING) {
1245N/A // if there was no mapping - look for substitution characters
1245N/A if (subMode) {
1245N/A if (subBytes.length == 1) {
1245N/A outputByte[0] = 0x00;
1245N/A outputByte[1] = subBytes[0];
1245N/A } else {
1245N/A outputByte[0] = subBytes[0];
1245N/A outputByte[1] = subBytes[1];
1245N/A }
1245N/A } else {
1245N/A badInputLength = 1;
1245N/A throw new UnknownCharacterException();
1245N/A }
1245N/A } else {
1245N/A outputByte[0] = (byte)((theBytes & 0x0000ff00)>>8);
1245N/A outputByte[1] = (byte)(theBytes & 0x000000ff);
1245N/A }
0N/A }
0N/A
0N/A //Set the output buffer into the correct state
0N/A
0N/A if (currentState == DBCS && outputByte[0] == 0x00) {
0N/A if (byteOff >= outEnd)
0N/A throw new ConversionBufferFullException();
0N/A currentState = SBCS;
0N/A output[byteOff++] = SI;
0N/A } else
0N/A if (currentState == SBCS && outputByte[0] != 0x00) {
0N/A if (byteOff >= outEnd) {
0N/A throw new ConversionBufferFullException();
0N/A }
0N/A currentState = DBCS;
0N/A output[byteOff++] = SO;
0N/A }
0N/A
0N/A if (currentState == DBCS)
0N/A spaceNeeded = 2;
0N/A else
0N/A spaceNeeded = 1;
0N/A
0N/A if (byteOff + spaceNeeded > outEnd) {
0N/A throw new ConversionBufferFullException();
0N/A }
0N/A
0N/A if (currentState == SBCS)
0N/A output[byteOff++] = outputByte[1];
0N/A else {
0N/A output[byteOff++] = outputByte[0];
0N/A output[byteOff++] = outputByte[1];
0N/A }
0N/A
0N/A charOff += inputSize;
0N/A }
0N/A return byteOff - outOff;
0N/A }
0N/A
0N/A
0N/A
0N/A /**
0N/A * Resets converter to its initial state.
0N/A */
0N/A public void reset() {
0N/A charOff = byteOff = 0;
0N/A highHalfZoneCode = 0;
0N/A currentState = SBCS;
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Returns the maximum number of bytes needed to convert a char.
0N/A */
0N/A public int getMaxBytesPerChar() {
0N/A return 4; //Fixed with bug 4199599 so tests would pass.
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Sets the substitution bytes to use when the converter is in
0N/A * substitution mode. The given bytes should represent a valid
0N/A * character in the target character encoding.
0N/A */
0N/A
0N/A public void setSubstitutionBytes( byte[] newSubBytes )
0N/A throws IllegalArgumentException
0N/A {
0N/A if( newSubBytes.length > 2 || newSubBytes.length == 0) {
0N/A throw new IllegalArgumentException();
0N/A }
0N/A
0N/A subBytes = new byte[ newSubBytes.length ];
0N/A System.arraycopy( newSubBytes, 0, subBytes, 0, newSubBytes.length );
0N/A
0N/A }
0N/A
0N/A /**
0N/A * Returns true if the given character can be converted to the
0N/A * target character encoding.
0N/A */
1245N/A public boolean canConvert(char c) {
1245N/A return encodeChar(c) != UNMAPPABLE_ENCODING;
0N/A }
0N/A}