src/share/jaxws_classes/com/sun/xml/internal/fastinfoset/algorithm/LongEncodingAlgorithm.java

Wed, 27 Apr 2016 01:27:09 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:27:09 +0800
changeset 0
373ffda63c9a
permissions
-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17

     1 /*
     2  * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  *
    25  * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.
    26  */
    28 package com.sun.xml.internal.fastinfoset.algorithm;
    30 import java.io.EOFException;
    31 import java.io.IOException;
    32 import java.io.InputStream;
    33 import java.io.OutputStream;
    34 import java.nio.CharBuffer;
    35 import java.util.ArrayList;
    36 import java.util.List;
    37 import com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmException;
    38 import com.sun.xml.internal.fastinfoset.CommonResourceBundle;
    41 public class LongEncodingAlgorithm extends IntegerEncodingAlgorithm {
    43     public int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
    44         if (octetLength % LONG_SIZE != 0) {
    45             throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
    46                     getString("message.lengthNotMultipleOfLong", new Object[]{Integer.valueOf(LONG_SIZE)}));
    47         }
    49         return octetLength / LONG_SIZE;
    50     }
    52     public int getOctetLengthFromPrimitiveLength(int primitiveLength) {
    53         return primitiveLength * LONG_SIZE;
    54     }
    56     public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException {
    57         long[] data = new long[getPrimtiveLengthFromOctetLength(length)];
    58         decodeFromBytesToLongArray(data, 0, b, start, length);
    60         return data;
    61     }
    63     public final Object decodeFromInputStream(InputStream s) throws IOException {
    64         return decodeFromInputStreamToIntArray(s);
    65     }
    68     public void encodeToOutputStream(Object data, OutputStream s) throws IOException {
    69         if (!(data instanceof long[])) {
    70             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
    71         }
    73         final long[] ldata = (long[])data;
    75         encodeToOutputStreamFromLongArray(ldata, s);
    76     }
    79     public Object convertFromCharacters(char[] ch, int start, int length) {
    80         final CharBuffer cb = CharBuffer.wrap(ch, start, length);
    81         final List longList = new ArrayList();
    83         matchWhiteSpaceDelimnatedWords(cb,
    84                 new WordListener() {
    85             public void word(int start, int end) {
    86                 String lStringValue = cb.subSequence(start, end).toString();
    87                 longList.add(Long.valueOf(lStringValue));
    88             }
    89         }
    90         );
    92         return generateArrayFromList(longList);
    93     }
    95     public void convertToCharacters(Object data, StringBuffer s) {
    96         if (!(data instanceof long[])) {
    97             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotLongArray"));
    98         }
   100         final long[] ldata = (long[])data;
   102         convertToCharactersFromLongArray(ldata, s);
   103     }
   106     public final void decodeFromBytesToLongArray(long[] ldata, int istart, byte[] b, int start, int length) {
   107         final int size = length / LONG_SIZE;
   108         for (int i = 0; i < size; i++) {
   109             ldata[istart++] =
   110                     ((long)(b[start++] & 0xFF) << 56) |
   111                     ((long)(b[start++] & 0xFF) << 48) |
   112                     ((long)(b[start++] & 0xFF) << 40) |
   113                     ((long)(b[start++] & 0xFF) << 32) |
   114                     ((long)(b[start++] & 0xFF) << 24) |
   115                     ((long)(b[start++] & 0xFF) << 16) |
   116                     ((long)(b[start++] & 0xFF) << 8) |
   117                     (long)(b[start++] & 0xFF);
   118         }
   119     }
   121     public final long[] decodeFromInputStreamToIntArray(InputStream s) throws IOException {
   122         final List longList = new ArrayList();
   123         final byte[] b = new byte[LONG_SIZE];
   125         while (true) {
   126             int n = s.read(b);
   127             if (n != LONG_SIZE) {
   128                 if (n == -1) {
   129                     break;
   130                 }
   132                 while(n != LONG_SIZE) {
   133                     final int m = s.read(b, n, LONG_SIZE - n);
   134                     if (m == -1) {
   135                         throw new EOFException();
   136                     }
   137                     n += m;
   138                 }
   139             }
   141             final long l =
   142                     (((long) b[0] << 56) +
   143                     ((long) (b[1] & 0xFF) << 48) +
   144                     ((long) (b[2] & 0xFF) << 40) +
   145                     ((long) (b[3] & 0xFF) << 32) +
   146                     ((long) (b[4] & 0xFF) << 24) +
   147                     ((b[5] & 0xFF) << 16) +
   148                     ((b[6] & 0xFF) << 8) +
   149                     ((b[7] & 0xFF) << 0));
   151             longList.add(Long.valueOf(l));
   152         }
   154         return generateArrayFromList(longList);
   155     }
   158     public final void encodeToOutputStreamFromLongArray(long[] ldata, OutputStream s) throws IOException {
   159         for (int i = 0; i < ldata.length; i++) {
   160             final long bits = ldata[i];
   161             s.write((int)((bits >>> 56) & 0xFF));
   162             s.write((int)((bits >>> 48) & 0xFF));
   163             s.write((int)((bits >>> 40) & 0xFF));
   164             s.write((int)((bits >>> 32) & 0xFF));
   165             s.write((int)((bits >>> 24) & 0xFF));
   166             s.write((int)((bits >>> 16) & 0xFF));
   167             s.write((int)((bits >>> 8) & 0xFF));
   168             s.write((int)(bits & 0xFF));
   169         }
   170     }
   172     public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) {
   173         encodeToBytesFromLongArray((long[])array, astart, alength, b, start);
   174     }
   176     public final void encodeToBytesFromLongArray(long[] ldata, int lstart, int llength, byte[] b, int start) {
   177         final int lend = lstart + llength;
   178         for (int i = lstart; i < lend; i++) {
   179             final long bits = ldata[i];
   180             b[start++] = (byte)((bits >>> 56) & 0xFF);
   181             b[start++] = (byte)((bits >>> 48) & 0xFF);
   182             b[start++] = (byte)((bits >>> 40) & 0xFF);
   183             b[start++] = (byte)((bits >>> 32) & 0xFF);
   184             b[start++] = (byte)((bits >>> 24) & 0xFF);
   185             b[start++] = (byte)((bits >>> 16) & 0xFF);
   186             b[start++] = (byte)((bits >>>  8) & 0xFF);
   187             b[start++] = (byte)(bits & 0xFF);
   188         }
   189     }
   192     public final void convertToCharactersFromLongArray(long[] ldata, StringBuffer s) {
   193         final int end = ldata.length - 1;
   194         for (int i = 0; i <= end; i++) {
   195             s.append(Long.toString(ldata[i]));
   196             if (i != end) {
   197                 s.append(' ');
   198             }
   199         }
   200     }
   203     public final long[] generateArrayFromList(List array) {
   204         long[] ldata = new long[array.size()];
   205         for (int i = 0; i < ldata.length; i++) {
   206             ldata[i] = ((Long)array.get(i)).longValue();
   207         }
   209         return ldata;
   210     }
   211 }

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