1 /*
   2  * Copyright (c) 1997, 2014, 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;
  27 
  28 import java.io.IOException;
  29 import java.lang.reflect.Array;
  30 import java.util.List;
  31 
  32 import javax.xml.bind.JAXBException;
  33 import javax.xml.bind.ValidationEvent;
  34 import javax.xml.bind.helpers.ValidationEventImpl;
  35 import javax.xml.stream.XMLStreamException;
  36 
  37 import com.sun.istack.internal.FinalArrayList;
  38 import com.sun.xml.internal.bind.WhiteSpaceProcessor;
  39 import com.sun.xml.internal.bind.api.AccessorException;
  40 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader;
  41 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;
  42 
  43 import org.xml.sax.SAXException;
  44 
  45 /**
  46  * {@link JaxBeanInfo} implementation that binds T[] to a list of simple types.
  47  *
  48  * @author Kohsuke Kawaguchi
  49  */
  50 final class ValueListBeanInfoImpl extends JaxBeanInfo {
  51 
  52     private final Class itemType;
  53     private final Transducer xducer;    // for items
  54 
  55     public ValueListBeanInfoImpl(JAXBContextImpl owner, Class arrayType) throws JAXBException {
  56         super(owner, null, arrayType, false, true, false);
  57         this.itemType = jaxbType.getComponentType();
  58         this.xducer = owner.getBeanInfo(arrayType.getComponentType(),true).getTransducer();
  59         assert xducer!=null;
  60     }
  61 
  62     private final Loader loader = new Loader(true) {
  63         @Override
  64         public void text(UnmarshallingContext.State state, CharSequence text) throws SAXException {
  65             List<Object> r = new FinalArrayList<Object>();
  66 
  67             int idx = 0;
  68             int len = text.length();
  69 
  70             while(true) {
  71                 int p = idx;
  72                 while( p<len && !WhiteSpaceProcessor.isWhiteSpace(text.charAt(p)) )
  73                     p++;
  74 
  75                 CharSequence token = text.subSequence(idx,p);
  76                 if (!token.equals(""))
  77                     try {
  78                         r.add(xducer.parse(token));
  79                     } catch (AccessorException e) {
  80                         handleGenericException(e,true);
  81                         continue;   // move on to next
  82                     }
  83 
  84                 if(p==len)      break;  // done
  85 
  86                 while( p<len && WhiteSpaceProcessor.isWhiteSpace(text.charAt(p)) )
  87                     p++;
  88                 if(p==len)      break;  // done
  89 
  90                 idx = p;
  91             }
  92 
  93             state.setTarget(toArray(r));
  94         }
  95     };
  96 
  97     private Object toArray( List list ) {
  98         int len = list.size();
  99         Object array = Array.newInstance(itemType,len);
 100         for( int i=0; i<len; i++ )
 101             Array.set(array,i,list.get(i));
 102         return array;
 103     }
 104 
 105     public void serializeBody(Object array, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
 106         int len = Array.getLength(array);
 107         for( int i=0; i<len; i++ )  {
 108             Object item = Array.get(array,i);
 109             try {
 110                 xducer.writeText(target,item,"arrayItem");
 111             } catch (AccessorException e) {
 112                 target.reportError("arrayItem",e);
 113             }
 114         }
 115     }
 116 
 117     public final void serializeURIs(Object array, XMLSerializer target) throws SAXException {
 118         if(xducer.useNamespace()) {
 119             int len = Array.getLength(array);
 120             for( int i=0; i<len; i++ )  {
 121                 Object item = Array.get(array,i);
 122                 try {
 123                     xducer.declareNamespace(item,target);
 124                 } catch (AccessorException e) {
 125                     target.reportError("arrayItem",e);
 126                 }
 127             }
 128         }
 129     }
 130 
 131     public final String getElementNamespaceURI(Object array) {
 132         throw new UnsupportedOperationException();
 133     }
 134 
 135     public final String getElementLocalName(Object array) {
 136         throw new UnsupportedOperationException();
 137     }
 138 
 139     public final Object createInstance(UnmarshallingContext context) {
 140         throw new UnsupportedOperationException();
 141     }
 142 
 143     public final boolean reset(Object array, UnmarshallingContext context) {
 144         return false;
 145     }
 146 
 147     public final String getId(Object array, XMLSerializer target) {
 148         return null;
 149     }
 150 
 151     public final void serializeAttributes(Object array, XMLSerializer target) {
 152         // noop
 153     }
 154 
 155     public final void serializeRoot(Object array, XMLSerializer target) throws SAXException {
 156         target.reportError(
 157                 new ValidationEventImpl(
 158                         ValidationEvent.ERROR,
 159                         Messages.UNABLE_TO_MARSHAL_NON_ELEMENT.format(array.getClass().getName()),
 160                         null,
 161                         null));
 162     }
 163 
 164     public final Transducer getTransducer() {
 165         return null;
 166     }
 167 
 168     public final Loader getLoader(JAXBContextImpl context, boolean typeSubstitutionCapable) {
 169         // type substitution impossible
 170         return loader;
 171     }
 172 }