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

Thu, 12 Oct 2017 19:44:07 +0800

author
aoqi
date
Thu, 12 Oct 2017 19:44:07 +0800
changeset 760
e530533619ec
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

     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;
    42 public class IntEncodingAlgorithm extends IntegerEncodingAlgorithm {
    44     public final int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException {
    45         if (octetLength % INT_SIZE != 0) {
    46             throw new EncodingAlgorithmException(CommonResourceBundle.getInstance().
    47                     getString("message.lengthNotMultipleOfInt", new Object[]{Integer.valueOf(INT_SIZE)}));
    48         }
    50         return octetLength / INT_SIZE;
    51     }
    53     public int getOctetLengthFromPrimitiveLength(int primitiveLength) {
    54         return primitiveLength * INT_SIZE;
    55     }
    57     public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException {
    58         int[] data = new int[getPrimtiveLengthFromOctetLength(length)];
    59         decodeFromBytesToIntArray(data, 0, b, start, length);
    61         return data;
    62     }
    64     public final Object decodeFromInputStream(InputStream s) throws IOException {
    65         return decodeFromInputStreamToIntArray(s);
    66     }
    69     public void encodeToOutputStream(Object data, OutputStream s) throws IOException {
    70         if (!(data instanceof int[])) {
    71             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotIntArray"));
    72         }
    74         final int[] idata = (int[])data;
    76         encodeToOutputStreamFromIntArray(idata, s);
    77     }
    80     public final Object convertFromCharacters(char[] ch, int start, int length) {
    81         final CharBuffer cb = CharBuffer.wrap(ch, start, length);
    82         final List integerList = new ArrayList();
    84         matchWhiteSpaceDelimnatedWords(cb,
    85                 new WordListener() {
    86             public void word(int start, int end) {
    87                 String iStringValue = cb.subSequence(start, end).toString();
    88                 integerList.add(Integer.valueOf(iStringValue));
    89             }
    90         }
    91         );
    93         return generateArrayFromList(integerList);
    94     }
    96     public final void convertToCharacters(Object data, StringBuffer s) {
    97         if (!(data instanceof int[])) {
    98             throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotIntArray"));
    99         }
   101         final int[] idata = (int[])data;
   103         convertToCharactersFromIntArray(idata, s);
   104     }
   107     public final void decodeFromBytesToIntArray(int[] idata, int istart, byte[] b, int start, int length) {
   108         final int size = length / INT_SIZE;
   109         for (int i = 0; i < size; i++) {
   110             idata[istart++] = ((b[start++] & 0xFF) << 24) |
   111                     ((b[start++] & 0xFF) << 16) |
   112                     ((b[start++] & 0xFF) << 8) |
   113                     (b[start++] & 0xFF);
   114         }
   115     }
   117     public final int[] decodeFromInputStreamToIntArray(InputStream s) throws IOException {
   118         final List integerList = new ArrayList();
   119         final byte[] b = new byte[INT_SIZE];
   121         while (true) {
   122             int n = s.read(b);
   123             if (n != 4) {
   124                 if (n == -1) {
   125                     break;
   126                 }
   128                 while(n != 4) {
   129                     final int m = s.read(b, n, INT_SIZE - n);
   130                     if (m == -1) {
   131                         throw new EOFException();
   132                     }
   133                     n += m;
   134                 }
   135             }
   137             final int i = ((b[0] & 0xFF) << 24) |
   138                     ((b[1] & 0xFF) << 16) |
   139                     ((b[2] & 0xFF) << 8) |
   140                     (b[3] & 0xFF);
   141             integerList.add(Integer.valueOf(i));
   142         }
   144         return generateArrayFromList(integerList);
   145     }
   148     public final void encodeToOutputStreamFromIntArray(int[] idata, OutputStream s) throws IOException {
   149         for (int i = 0; i < idata.length; i++) {
   150             final int bits = idata[i];
   151             s.write((bits >>> 24) & 0xFF);
   152             s.write((bits >>> 16) & 0xFF);
   153             s.write((bits >>> 8) & 0xFF);
   154             s.write(bits & 0xFF);
   155         }
   156     }
   158     public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) {
   159         encodeToBytesFromIntArray((int[])array, astart, alength, b, start);
   160     }
   162     public final void encodeToBytesFromIntArray(int[] idata, int istart, int ilength, byte[] b, int start) {
   163         final int iend = istart + ilength;
   164         for (int i = istart; i < iend; i++) {
   165             final int bits = idata[i];
   166             b[start++] = (byte)((bits >>> 24) & 0xFF);
   167             b[start++] = (byte)((bits >>> 16) & 0xFF);
   168             b[start++] = (byte)((bits >>>  8) & 0xFF);
   169             b[start++] = (byte)(bits & 0xFF);
   170         }
   171     }
   174     public final void convertToCharactersFromIntArray(int[] idata, StringBuffer s) {
   175         final int end = idata.length - 1;
   176         for (int i = 0; i <= end; i++) {
   177             s.append(Integer.toString(idata[i]));
   178             if (i != end) {
   179                 s.append(' ');
   180             }
   181         }
   182     }
   185     public final int[] generateArrayFromList(List array) {
   186         int[] idata = new int[array.size()];
   187         for (int i = 0; i < idata.length; i++) {
   188             idata[i] = ((Integer)array.get(i)).intValue();
   189         }
   191         return idata;
   192     }
   193 }

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