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;
public class LongEncodingAlgorithm extends IntegerEncodingAlgorithm {
public int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
if (octetLength % LONG_SIZE != 0) {
throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
getString("message.lengthNotMultipleOfLong", new Object[]{Integer.valueOf(LONG_SIZE)}));
}
return octetLength / LONG_SIZE;
}
public int getOctetLengthFromPrimitiveLength(int primitiveLength) {
return primitiveLength * LONG_SIZE;
}
public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException {
long[] data = new long[getPrimtiveLengthFromOctetLength(length)];
decodeFromBytesToLongArray(data, 0, b, start, length);
return data;
}
public final Object decodeFromInputStream(InputStream s) throws IOException {
return decodeFromInputStreamToIntArray(s);
}
public void encodeToOutputStream(Object data, OutputStream s) throws IOException {
if (!(data instanceof long[])) {
throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
}
final long[] ldata = (long[])data;
encodeToOutputStreamFromLongArray(ldata, s);
}
public Object convertFromCharacters(char[] ch, int start, int length) {
final CharBuffer cb = CharBuffer.wrap(ch, start, length);
final List longList = new ArrayList();
matchWhiteSpaceDelimnatedWords(cb,
new WordListener() {
public void word(int start, int end) {
String lStringValue = cb.subSequence(start, end).toString();
longList.add(Long.valueOf(lStringValue));
}
}
);
return generateArrayFromList(longList);
}
public void convertToCharacters(Object data, StringBuffer s) {
if (!(data instanceof long[])) {
throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
}
final long[] ldata = (long[])data;
convertToCharactersFromLongArray(ldata, s);
}
public final void decodeFromBytesToLongArray(long[] ldata, int istart, byte[] b, int start, int length) {
final int size = length / LONG_SIZE;
for (int i = 0; i < size; i++) {
ldata[istart++] =
((long)(b[start++] & 0xFF) << 56) |
((long)(b[start++] & 0xFF) << 48) |
((long)(b[start++] & 0xFF) << 40) |
((long)(b[start++] & 0xFF) << 32) |
((long)(b[start++] & 0xFF) << 24) |
((long)(b[start++] & 0xFF) << 16) |
((long)(b[start++] & 0xFF) << 8) |
(long)(b[start++] & 0xFF);
}
}
public final long[] decodeFromInputStreamToIntArray(InputStream s) throws IOException {
final List longList = new ArrayList();
final byte[] b = new byte[LONG_SIZE];
while (true) {
int n = s.read(b);
if (n != LONG_SIZE) {
if (n == -1) {
break;
}
while(n != LONG_SIZE) {
final int m = s.read(b, n, LONG_SIZE - n);
if (m == -1) {
throw new EOFException();
}
n += m;
}
}
final long l =
(((long) b[0] << 56) +
((long) (b[1] & 0xFF) << 48) +
((long) (b[2] & 0xFF) << 40) +
((long) (b[3] & 0xFF) << 32) +
((long) (b[4] & 0xFF) << 24) +
((b[5] & 0xFF) << 16) +
((b[6] & 0xFF) << 8) +
((b[7] & 0xFF) << 0));
longList.add(Long.valueOf(l));
}
return generateArrayFromList(longList);
}
public final void encodeToOutputStreamFromLongArray(long[] ldata, OutputStream s) throws IOException {
for (int i = 0; i < ldata.length; i++) {
final long bits = ldata[i];
s.write((int)((bits >>> 56) & 0xFF));
s.write((int)((bits >>> 48) & 0xFF));
s.write((int)((bits >>> 40) & 0xFF));
s.write((int)((bits >>> 32) & 0xFF));
s.write((int)((bits >>> 24) & 0xFF));
s.write((int)((bits >>> 16) & 0xFF));
s.write((int)((bits >>> 8) & 0xFF));
s.write((int)(bits & 0xFF));
}
}
public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) {
encodeToBytesFromLongArray((long[])array, astart, alength, b, start);
}
public final void encodeToBytesFromLongArray(long[] ldata, int lstart, int llength, byte[] b, int start) {
final int lend = lstart + llength;
for (int i = lstart; i < lend; i++) {
final long bits = ldata[i];
b[start++] = (byte)((bits >>> 56) & 0xFF);
b[start++] = (byte)((bits >>> 48) & 0xFF);
b[start++] = (byte)((bits >>> 40) & 0xFF);
b[start++] = (byte)((bits >>> 32) & 0xFF);
b[start++] = (byte)((bits >>> 24) & 0xFF);
b[start++] = (byte)((bits >>> 16) & 0xFF);
b[start++] = (byte)((bits >>> 8) & 0xFF);
b[start++] = (byte)(bits & 0xFF);
}
}
public final void convertToCharactersFromLongArray(long[] ldata, StringBuffer s) {
final int end = ldata.length - 1;
for (int i = 0; i <= end; i++) {
s.append(Long.toString(ldata[i]));
if (i != end) {
s.append(' ');
}
}
}
public final long[] generateArrayFromList(List array) {
long[] ldata = new long[array.size()];
for (int i = 0; i < ldata.length; i++) {
ldata[i] = ((Long)array.get(i)).longValue();
}
return ldata;
}
}
LongEncodingAlgorithm
