aoqi@0: /*
aoqi@0:  * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.fastinfoset.algorithm;
aoqi@0: 
aoqi@0: import java.io.EOFException;
aoqi@0: import java.io.IOException;
aoqi@0: import java.io.InputStream;
aoqi@0: import java.io.OutputStream;
aoqi@0: import java.nio.CharBuffer;
aoqi@0: import java.util.ArrayList;
aoqi@0: import java.util.List;
aoqi@0: import com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmException;
aoqi@0: import com.sun.xml.internal.fastinfoset.CommonResourceBundle;
aoqi@0: 
aoqi@0: 
aoqi@0: public class LongEncodingAlgorithm extends IntegerEncodingAlgorithm {
aoqi@0: 
aoqi@0:     public int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
aoqi@0:         if (octetLength % LONG_SIZE != 0) {
aoqi@0:             throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
aoqi@0:                     getString("message.lengthNotMultipleOfLong", new Object[]{Integer.valueOf(LONG_SIZE)}));
aoqi@0:         }
aoqi@0: 
aoqi@0:         return octetLength / LONG_SIZE;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public int getOctetLengthFromPrimitiveLength(int primitiveLength) {
aoqi@0:         return primitiveLength * LONG_SIZE;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException {
aoqi@0:         long[] data = new long[getPrimtiveLengthFromOctetLength(length)];
aoqi@0:         decodeFromBytesToLongArray(data, 0, b, start, length);
aoqi@0: 
aoqi@0:         return data;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final Object decodeFromInputStream(InputStream s) throws IOException {
aoqi@0:         return decodeFromInputStreamToIntArray(s);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public void encodeToOutputStream(Object data, OutputStream s) throws IOException {
aoqi@0:         if (!(data instanceof long[])) {
aoqi@0:             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
aoqi@0:         }
aoqi@0: 
aoqi@0:         final long[] ldata = (long[])data;
aoqi@0: 
aoqi@0:         encodeToOutputStreamFromLongArray(ldata, s);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public Object convertFromCharacters(char[] ch, int start, int length) {
aoqi@0:         final CharBuffer cb = CharBuffer.wrap(ch, start, length);
aoqi@0:         final List longList = new ArrayList();
aoqi@0: 
aoqi@0:         matchWhiteSpaceDelimnatedWords(cb,
aoqi@0:                 new WordListener() {
aoqi@0:             public void word(int start, int end) {
aoqi@0:                 String lStringValue = cb.subSequence(start, end).toString();
aoqi@0:                 longList.add(Long.valueOf(lStringValue));
aoqi@0:             }
aoqi@0:         }
aoqi@0:         );
aoqi@0: 
aoqi@0:         return generateArrayFromList(longList);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void convertToCharacters(Object data, StringBuffer s) {
aoqi@0:         if (!(data instanceof long[])) {
aoqi@0:             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
aoqi@0:         }
aoqi@0: 
aoqi@0:         final long[] ldata = (long[])data;
aoqi@0: 
aoqi@0:         convertToCharactersFromLongArray(ldata, s);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public final void decodeFromBytesToLongArray(long[] ldata, int istart, byte[] b, int start, int length) {
aoqi@0:         final int size = length / LONG_SIZE;
aoqi@0:         for (int i = 0; i < size; i++) {
aoqi@0:             ldata[istart++] =
aoqi@0:                     ((long)(b[start++] & 0xFF) << 56) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 48) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 40) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 32) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 24) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 16) |
aoqi@0:                     ((long)(b[start++] & 0xFF) << 8) |
aoqi@0:                     (long)(b[start++] & 0xFF);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final long[] decodeFromInputStreamToIntArray(InputStream s) throws IOException {
aoqi@0:         final List longList = new ArrayList();
aoqi@0:         final byte[] b = new byte[LONG_SIZE];
aoqi@0: 
aoqi@0:         while (true) {
aoqi@0:             int n = s.read(b);
aoqi@0:             if (n != LONG_SIZE) {
aoqi@0:                 if (n == -1) {
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0: 
aoqi@0:                 while(n != LONG_SIZE) {
aoqi@0:                     final int m = s.read(b, n, LONG_SIZE - n);
aoqi@0:                     if (m == -1) {
aoqi@0:                         throw new EOFException();
aoqi@0:                     }
aoqi@0:                     n += m;
aoqi@0:                 }
aoqi@0:             }
aoqi@0: 
aoqi@0:             final long l =
aoqi@0:                     (((long) b[0] << 56) +
aoqi@0:                     ((long) (b[1] & 0xFF) << 48) +
aoqi@0:                     ((long) (b[2] & 0xFF) << 40) +
aoqi@0:                     ((long) (b[3] & 0xFF) << 32) +
aoqi@0:                     ((long) (b[4] & 0xFF) << 24) +
aoqi@0:                     ((b[5] & 0xFF) << 16) +
aoqi@0:                     ((b[6] & 0xFF) << 8) +
aoqi@0:                     ((b[7] & 0xFF) << 0));
aoqi@0: 
aoqi@0:             longList.add(Long.valueOf(l));
aoqi@0:         }
aoqi@0: 
aoqi@0:         return generateArrayFromList(longList);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public final void encodeToOutputStreamFromLongArray(long[] ldata, OutputStream s) throws IOException {
aoqi@0:         for (int i = 0; i < ldata.length; i++) {
aoqi@0:             final long bits = ldata[i];
aoqi@0:             s.write((int)((bits >>> 56) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 48) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 40) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 32) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 24) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 16) & 0xFF));
aoqi@0:             s.write((int)((bits >>> 8) & 0xFF));
aoqi@0:             s.write((int)(bits & 0xFF));
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) {
aoqi@0:         encodeToBytesFromLongArray((long[])array, astart, alength, b, start);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public final void encodeToBytesFromLongArray(long[] ldata, int lstart, int llength, byte[] b, int start) {
aoqi@0:         final int lend = lstart + llength;
aoqi@0:         for (int i = lstart; i < lend; i++) {
aoqi@0:             final long bits = ldata[i];
aoqi@0:             b[start++] = (byte)((bits >>> 56) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>> 48) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>> 40) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>> 32) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>> 24) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>> 16) & 0xFF);
aoqi@0:             b[start++] = (byte)((bits >>>  8) & 0xFF);
aoqi@0:             b[start++] = (byte)(bits & 0xFF);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public final void convertToCharactersFromLongArray(long[] ldata, StringBuffer s) {
aoqi@0:         final int end = ldata.length - 1;
aoqi@0:         for (int i = 0; i <= end; i++) {
aoqi@0:             s.append(Long.toString(ldata[i]));
aoqi@0:             if (i != end) {
aoqi@0:                 s.append(' ');
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public final long[] generateArrayFromList(List array) {
aoqi@0:         long[] ldata = new long[array.size()];
aoqi@0:         for (int i = 0; i < ldata.length; i++) {
aoqi@0:             ldata[i] = ((Long)array.get(i)).longValue();
aoqi@0:         }
aoqi@0: 
aoqi@0:         return ldata;
aoqi@0:     }
aoqi@0: }