| /* |
| * Copyright (c) 2004, 2011, 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. |
| * |
| * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
| */ |
| |
| package com.sun.xml.internal.fastinfoset.algorithm; |
| |
| import java.io.EOFException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.CharBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmException; |
| import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
| |
| |
| /** |
| * An encoder for handling Short values. Suppports the builtin SHORT encoder. |
| * |
| * @author Alan Hudson |
| * @author Paul Sandoz |
| */ |
| public class ShortEncodingAlgorithm extends IntegerEncodingAlgorithm { |
| |
| public final int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException { |
| if (octetLength % SHORT_SIZE != 0) { |
| throw new EncodingAlgorithmException(CommonResourceBundle.getInstance(). |
| getString("message.lengthNotMultipleOfShort", new Object[]{Integer.valueOf(SHORT_SIZE)})); |
| } |
| |
| return octetLength / SHORT_SIZE; |
| } |
| |
| public int getOctetLengthFromPrimitiveLength(int primitiveLength) { |
| return primitiveLength * SHORT_SIZE; |
| } |
| |
| public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException { |
| short[] data = new short[getPrimtiveLengthFromOctetLength(length)]; |
| decodeFromBytesToShortArray(data, 0, b, start, length); |
| |
| return data; |
| } |
| |
| public final Object decodeFromInputStream(InputStream s) throws IOException { |
| return decodeFromInputStreamToShortArray(s); |
| } |
| |
| |
| public void encodeToOutputStream(Object data, OutputStream s) throws IOException { |
| if (!(data instanceof short[])) { |
| throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotShortArray")); |
| } |
| |
| final short[] idata = (short[])data; |
| |
| encodeToOutputStreamFromShortArray(idata, s); |
| } |
| |
| |
| public final Object convertFromCharacters(char[] ch, int start, int length) { |
| final CharBuffer cb = CharBuffer.wrap(ch, start, length); |
| final List shortList = new ArrayList(); |
| |
| matchWhiteSpaceDelimnatedWords(cb, |
| new WordListener() { |
| public void word(int start, int end) { |
| String iStringValue = cb.subSequence(start, end).toString(); |
| shortList.add(Short.valueOf(iStringValue)); |
| } |
| } |
| ); |
| |
| return generateArrayFromList(shortList); |
| } |
| |
| public final void convertToCharacters(Object data, StringBuffer s) { |
| if (!(data instanceof short[])) { |
| throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotShortArray")); |
| } |
| |
| final short[] idata = (short[])data; |
| |
| convertToCharactersFromShortArray(idata, s); |
| } |
| |
| |
| public final void decodeFromBytesToShortArray(short[] sdata, int istart, byte[] b, int start, int length) { |
| final int size = length / SHORT_SIZE; |
| for (int i = 0; i < size; i++) { |
| sdata[istart++] = (short) (((b[start++] & 0xFF) << 8) | |
| (b[start++] & 0xFF)); |
| } |
| } |
| |
| public final short[] decodeFromInputStreamToShortArray(InputStream s) throws IOException { |
| final List shortList = new ArrayList(); |
| final byte[] b = new byte[SHORT_SIZE]; |
| |
| while (true) { |
| int n = s.read(b); |
| if (n != 2) { |
| if (n == -1) { |
| break; |
| } |
| |
| while(n != 2) { |
| final int m = s.read(b, n, SHORT_SIZE - n); |
| if (m == -1) { |
| throw new EOFException(); |
| } |
| n += m; |
| } |
| } |
| |
| final int i = ((b[0] & 0xFF) << 8) | |
| (b[1] & 0xFF); |
| shortList.add(Short.valueOf((short)i)); |
| } |
| |
| return generateArrayFromList(shortList); |
| } |
| |
| |
| public final void encodeToOutputStreamFromShortArray(short[] idata, OutputStream s) throws IOException { |
| for (int i = 0; i < idata.length; i++) { |
| final int bits = idata[i]; |
| s.write((bits >>> 8) & 0xFF); |
| s.write(bits & 0xFF); |
| } |
| } |
| |
| public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) { |
| encodeToBytesFromShortArray((short[])array, astart, alength, b, start); |
| } |
| |
| public final void encodeToBytesFromShortArray(short[] sdata, int istart, int ilength, byte[] b, int start) { |
| final int iend = istart + ilength; |
| for (int i = istart; i < iend; i++) { |
| final short bits = sdata[i]; |
| b[start++] = (byte)((bits >>> 8) & 0xFF); |
| b[start++] = (byte)(bits & 0xFF); |
| } |
| } |
| |
| |
| public final void convertToCharactersFromShortArray(short[] sdata, StringBuffer s) { |
| final int end = sdata.length - 1; |
| for (int i = 0; i <= end; i++) { |
| s.append(Short.toString(sdata[i])); |
| if (i != end) { |
| s.append(' '); |
| } |
| } |
| } |
| |
| |
| public final short[] generateArrayFromList(List array) { |
| short[] sdata = new short[array.size()]; |
| for (int i = 0; i < sdata.length; i++) { |
| sdata[i] = ((Short)array.get(i)).shortValue(); |
| } |
| |
| return sdata; |
| } |
| } |