1 /*
   2  * Copyright (c) 1997, 2012, 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 
  26 package com.sun.xml.internal.bind.v2.runtime.reflect;
  27 
  28 import com.sun.xml.internal.bind.api.AccessorException;
  29 import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
  30 
  31 /**
  32  * {@link Lister} for primitive type arrays.
  33  *
  34  * <p>
  35  * B y t e ArrayLister is used as the master to generate the rest of the
  36  * lister classes. Do not modify the generated copies.
  37  */
  38 final class PrimitiveArrayListerByte<BeanT> extends Lister<BeanT,byte[],Byte,PrimitiveArrayListerByte.ByteArrayPack> {
  39 
  40     private PrimitiveArrayListerByte() {
  41     }
  42 
  43     /*package*/ static void register() {
  44         Lister.primitiveArrayListers.put(Byte.TYPE,new PrimitiveArrayListerByte());
  45     }
  46 
  47     public ListIterator<Byte> iterator(final byte[] objects, XMLSerializer context) {
  48         return new ListIterator<Byte>() {
  49             int idx=0;
  50             public boolean hasNext() {
  51                 return idx<objects.length;
  52             }
  53 
  54             public Byte next() {
  55                 return objects[idx++];
  56             }
  57         };
  58     }
  59 
  60     public ByteArrayPack startPacking(BeanT current, Accessor<BeanT, byte[]> acc) {
  61         return new ByteArrayPack();
  62     }
  63 
  64     public void addToPack(ByteArrayPack objects, Byte o) {
  65         objects.add(o);
  66     }
  67 
  68     public void endPacking( ByteArrayPack pack, BeanT bean, Accessor<BeanT,byte[]> acc ) throws AccessorException {
  69         acc.set(bean,pack.build());
  70     }
  71 
  72     public void reset(BeanT o,Accessor<BeanT,byte[]> acc) throws AccessorException {
  73         acc.set(o,new byte[0]);
  74     }
  75 
  76     static final class ByteArrayPack {
  77         byte[] buf = new byte[16];
  78         int size;
  79 
  80         void add(Byte b) {
  81             if(buf.length==size) {
  82                 // realloc
  83                 byte[] nb = new byte[buf.length*2];
  84                 System.arraycopy(buf,0,nb,0,buf.length);
  85                 buf = nb;
  86             }
  87             if(b!=null)
  88                 buf[size++] = b;
  89         }
  90 
  91         byte[] build() {
  92             if(buf.length==size)
  93                 // if we are lucky enough
  94                 return buf;
  95 
  96             byte[] r = new byte[size];
  97             System.arraycopy(buf,0,r,0,size);
  98             return r;
  99         }
 100     }
 101 }