src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/XsiNilLoader.java

Print this page


   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


  45  */
  46 public class XsiNilLoader extends ProxyLoader {
  47 
  48     private final Loader defaultLoader;
  49 
  50     public XsiNilLoader(Loader defaultLoader) {
  51         this.defaultLoader = defaultLoader;
  52         assert defaultLoader!=null;
  53     }
  54 
  55     protected Loader selectLoader(UnmarshallingContext.State state, TagName ea) throws SAXException {
  56         int idx = ea.atts.getIndex(WellKnownNamespace.XML_SCHEMA_INSTANCE,"nil");
  57 
  58         if (idx!=-1) {
  59             Boolean b = DatatypeConverterImpl._parseBoolean(ea.atts.getValue(idx));
  60 
  61             if (b != null && b) {
  62                 onNil(state);
  63                 boolean hasOtherAttributes = (ea.atts.getLength() - 1) > 0;
  64                 // see issues 6759703 and 565 - need to preserve attributes even if the element is nil; only when the type is stored in JAXBElement
  65                 if (!(hasOtherAttributes && (state.prev.target instanceof JAXBElement))) {
  66                     return Discarder.INSTANCE;
  67                 }
  68             }
  69         }
  70         return defaultLoader;
  71     }
  72 
  73         @Override
  74         public Collection<QName> getExpectedChildElements() {
  75             return defaultLoader.getExpectedChildElements();
  76         }
  77 
  78         @Override
  79         public Collection<QName> getExpectedAttributes() {
  80             return defaultLoader.getExpectedAttributes();
  81         }
  82 
  83     /**
  84      * Called when xsi:nil='true' was found.
  85      */
  86     protected void onNil(UnmarshallingContext.State state) throws SAXException {
  87     }
  88 
  89     public static final class Single extends XsiNilLoader {
  90         private final Accessor acc;
  91         public Single(Loader l, Accessor acc) {
  92             super(l);
  93             this.acc = acc;
  94         }
  95 
  96         @Override
  97         protected void onNil(UnmarshallingContext.State state) throws SAXException {
  98             try {
  99                 acc.set(state.prev.target,null);
 100                 state.prev.nil = true;
 101             } catch (AccessorException e) {
 102                 handleGenericException(e,true);
 103             }
 104         }
 105 
 106     }
 107 
 108     public static final class Array extends XsiNilLoader {
 109         public Array(Loader core) {
 110             super(core);
 111         }
 112 
 113         @Override
 114         protected void onNil(UnmarshallingContext.State state) {
 115             // let the receiver add this to the lister
 116             state.target = null;
 117         }
 118     }
 119 }
   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


  45  */
  46 public class XsiNilLoader extends ProxyLoader {
  47 
  48     private final Loader defaultLoader;
  49 
  50     public XsiNilLoader(Loader defaultLoader) {
  51         this.defaultLoader = defaultLoader;
  52         assert defaultLoader!=null;
  53     }
  54 
  55     protected Loader selectLoader(UnmarshallingContext.State state, TagName ea) throws SAXException {
  56         int idx = ea.atts.getIndex(WellKnownNamespace.XML_SCHEMA_INSTANCE,"nil");
  57 
  58         if (idx!=-1) {
  59             Boolean b = DatatypeConverterImpl._parseBoolean(ea.atts.getValue(idx));
  60 
  61             if (b != null && b) {
  62                 onNil(state);
  63                 boolean hasOtherAttributes = (ea.atts.getLength() - 1) > 0;
  64                 // see issues 6759703 and 565 - need to preserve attributes even if the element is nil; only when the type is stored in JAXBElement
  65                 if (!(hasOtherAttributes && (state.getPrev().getTarget() instanceof JAXBElement))) {
  66                     return Discarder.INSTANCE;
  67                 }
  68             }
  69         }
  70         return defaultLoader;
  71     }
  72 
  73         @Override
  74         public Collection<QName> getExpectedChildElements() {
  75             return defaultLoader.getExpectedChildElements();
  76         }
  77 
  78         @Override
  79         public Collection<QName> getExpectedAttributes() {
  80             return defaultLoader.getExpectedAttributes();
  81         }
  82 
  83     /**
  84      * Called when xsi:nil='true' was found.
  85      */
  86     protected void onNil(UnmarshallingContext.State state) throws SAXException {
  87     }
  88 
  89     public static final class Single extends XsiNilLoader {
  90         private final Accessor acc;
  91         public Single(Loader l, Accessor acc) {
  92             super(l);
  93             this.acc = acc;
  94         }
  95 
  96         @Override
  97         protected void onNil(UnmarshallingContext.State state) throws SAXException {
  98             try {
  99                 acc.set(state.getPrev().getTarget(),null);
 100                 state.getPrev().setNil(true);
 101             } catch (AccessorException e) {
 102                 handleGenericException(e,true);
 103             }
 104         }
 105 
 106     }
 107 
 108     public static final class Array extends XsiNilLoader {
 109         public Array(Loader core) {
 110             super(core);
 111         }
 112 
 113         @Override
 114         protected void onNil(UnmarshallingContext.State state) {
 115             // let the receiver add this to the lister
 116             state.setTarget(null);
 117         }
 118     }
 119 }