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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
* 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.
*
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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;
public class IntEncodingAlgorithm extends IntegerEncodingAlgorithm {
public final int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
if (octetLength % INT_SIZE != 0) {
throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
getString("message.lengthNotMultipleOfInt", new Object[]{Integer.valueOf(INT_SIZE)}));
}
return octetLength / INT_SIZE;
}
public int getOctetLengthFromPrimitiveLength(int primitiveLength) {
return primitiveLength * INT_SIZE;
}
public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException {
int[] data = new int[getPrimtiveLengthFromOctetLength(length)];
decodeFromBytesToIntArray(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 int[])) {
throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotIntArray"));
}
final int[] idata = (int[])data;
encodeToOutputStreamFromIntArray(idata, s);
}
public final Object convertFromCharacters(char[] ch, int start, int length) {
final CharBuffer cb = CharBuffer.wrap(ch, start, length);
final List integerList = new ArrayList();
matchWhiteSpaceDelimnatedWords(cb,
new WordListener() {
public void word(int start, int end) {
String iStringValue = cb.subSequence(start, end).toString();
integerList.add(Integer.valueOf(iStringValue));
}
}
);
return generateArrayFromList(integerList);
}
public final void convertToCharacters(Object data, StringBuffer s) {
if (!(data instanceof int[])) {
throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotIntArray"));
}
final int[] idata = (int[])data;
convertToCharactersFromIntArray(idata, s);
}
public final void decodeFromBytesToIntArray(int[] idata, int istart, byte[] b, int start, int length) {
final int size = length / INT_SIZE;
for (int i = 0; i < size; i++) {
idata[istart++] = ((b[start++] & 0xFF) << 24) |
((b[start++] & 0xFF) << 16) |
((b[start++] & 0xFF) << 8) |
(b[start++] & 0xFF);
}
}
public final int[] decodeFromInputStreamToIntArray(InputStream s) throws IOException {
final List integerList = new ArrayList();
final byte[] b = new byte[INT_SIZE];
while (true) {
int n = s.read(b);
if (n != 4) {
if (n == -1) {
break;
}
while(n != 4) {
final int m = s.read(b, n, INT_SIZE - n);
if (m == -1) {
throw new EOFException();
}
n += m;
}
}
final int i = ((b[0] & 0xFF) << 24) |
((b[1] & 0xFF) << 16) |
((b[2] & 0xFF) << 8) |
(b[3] & 0xFF);
integerList.add(Integer.valueOf(i));
}
return generateArrayFromList(integerList);
}
public final void encodeToOutputStreamFromIntArray(int[] idata, OutputStream s) throws IOException {
for (int i = 0; i < idata.length; i++) {
final int bits = idata[i];
s.write((bits >>> 24) & 0xFF);
s.write((bits >>> 16) & 0xFF);
s.write((bits >>> 8) & 0xFF);
s.write(bits & 0xFF);
}
}
public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) {
encodeToBytesFromIntArray((int[])array, astart, alength, b, start);
}
public final void encodeToBytesFromIntArray(int[] idata, int istart, int ilength, byte[] b, int start) {
final int iend = istart + ilength;
for (int i = istart; i < iend; i++) {
final int bits = idata[i];
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 convertToCharactersFromIntArray(int[] idata, StringBuffer s) {
final int end = idata.length - 1;
for (int i = 0; i <= end; i++) {
s.append(Integer.toString(idata[i]));
if (i != end) {
s.append(' ');
}
}
}
public final int[] generateArrayFromList(List array) {
int[] idata = new int[array.size()];
for (int i = 0; i < idata.length; i++) {
idata[i] = ((Integer)array.get(i)).intValue();
}
return idata;
}
}