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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* particular file as subject to the "Classpath" exception as provided
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*
* 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).
*
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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;
}
}