jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java@b0610cd08440

     1 /*

     2  * Copyright (c) 1997, 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  */

    26 package com.sun.xml.internal.bind.v2.runtime.property;

    28 import java.io.IOException;

    29 import java.util.HashMap;

    30 import java.util.LinkedHashMap;

    31 import java.util.Map;

    32 import java.util.TreeMap;

    33 import java.util.Collection;

    34 import java.util.Collections;

    35 import java.util.Arrays;

    36 import java.util.Set;

    38 import javax.xml.stream.XMLStreamException;

    39 import javax.xml.namespace.QName;

    41 import com.sun.xml.internal.bind.api.AccessorException;

    42 import com.sun.xml.internal.bind.v2.ClassFactory;

    43 import com.sun.xml.internal.bind.v2.util.QNameMap;

    44 import com.sun.xml.internal.bind.v2.model.core.PropertyKind;

    45 import com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator;

    46 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeMapPropertyInfo;

    47 import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;

    48 import com.sun.xml.internal.bind.v2.runtime.JaxBeanInfo;

    49 import com.sun.xml.internal.bind.v2.runtime.Name;

    50 import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;

    51 import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;

    52 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.ChildLoader;

    53 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.TagName;

    54 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader;

    55 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.Receiver;

    56 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext;

    57 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.State;

    59 import org.xml.sax.SAXException;

    61 /**

    62  * @author Kohsuke Kawaguchi

    63  */

    64 final class SingleMapNodeProperty<BeanT,ValueT extends Map> extends PropertyImpl<BeanT> {

    66     private final Accessor<BeanT,ValueT> acc;

    67     /**

    68      * The tag name that surrounds the whole property.

    69      */

    70     private final Name tagName;

    71     /**

    72      * The tag name that corresponds to the 'entry' element.

    73      */

    74     private final Name entryTag;

    75     private final Name keyTag;

    76     private final Name valueTag;

    78     private final boolean nillable;

    80     private JaxBeanInfo keyBeanInfo;

    81     private JaxBeanInfo valueBeanInfo;

    83     /**

    84      * The implementation class for this property.

    85      * If the property is null, we create an instance of this class.

    86      */

    87     private final Class<? extends ValueT> mapImplClass;

    89     public SingleMapNodeProperty(JAXBContextImpl context, RuntimeMapPropertyInfo prop) {

    90         super(context, prop);

    91         acc = prop.getAccessor().optimize(context);

    92         this.tagName = context.nameBuilder.createElementName(prop.getXmlName());

    93         this.entryTag = context.nameBuilder.createElementName("","entry");

    94         this.keyTag = context.nameBuilder.createElementName("","key");

    95         this.valueTag = context.nameBuilder.createElementName("","value");

    96         this.nillable = prop.isCollectionNillable();

    97         this.keyBeanInfo = context.getOrCreate(prop.getKeyType());

    98         this.valueBeanInfo = context.getOrCreate(prop.getValueType());

   100         // infer the implementation class

   101         Class<ValueT> sig = ReflectionNavigator.REFLECTION.erasure(prop.getRawType());

   102         mapImplClass = ClassFactory.inferImplClass(sig,knownImplClasses);

   103         // TODO: error check for mapImplClass==null

   104         // what is the error reporting path for this part of the code?

   105     }

   107     private static final Class[] knownImplClasses = {

   108         HashMap.class, TreeMap.class, LinkedHashMap.class

   109     };

   111     public void reset(BeanT bean) throws AccessorException {

   112         acc.set(bean,null);

   113     }

   116     /**

   117      * A Map property can never be ID.

   118      */

   119     public String getIdValue(BeanT bean) {

   120         return null;

   121     }

   123     public PropertyKind getKind() {

   124         return PropertyKind.MAP;

   125     }

   127     public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap<ChildLoader> handlers) {

   128         keyLoader = keyBeanInfo.getLoader(chain.context,true);

   129         valueLoader = valueBeanInfo.getLoader(chain.context,true);

   130         handlers.put(tagName,new ChildLoader(itemsLoader,null));

   131     }

   133     private Loader keyLoader;

   134     private Loader valueLoader;

   136     /**

   137      * Handles &lt;items> and &lt;/items>.

   138      *

   139      * The target will be set to a {@link Map}.

   140      */

   141     private final Loader itemsLoader = new Loader(false) {

   143         private ThreadLocal<Stack<BeanT>> target = new ThreadLocal<Stack<BeanT>>();

   144         private ThreadLocal<Stack<ValueT>> map = new ThreadLocal<Stack<ValueT>>();

   146         @Override

   147         public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {

   148             // create or obtain the Map object

   149             try {

   150                 BeanT target = (BeanT) state.prev.target;

   151                 ValueT mapValue = acc.get(target);

   152                 if(mapValue == null)

   153                     mapValue = ClassFactory.create(mapImplClass);

   154                 else

   155                     mapValue.clear();

   157                 Stack.push(this.target, target);

   158                 Stack.push(map, mapValue);

   159                 state.target = mapValue;

   160             } catch (AccessorException e) {

   161                 // recover from error by setting a dummy Map that receives and discards the values

   162                 handleGenericException(e,true);

   163                 state.target = new HashMap();

   164             }

   165         }

   167         @Override

   168         public void leaveElement(State state, TagName ea) throws SAXException {

   169             super.leaveElement(state, ea);

   170             try {

   171                 acc.set(Stack.pop(target), Stack.pop(map));

   172             } catch (AccessorException ex) {

   173                 handleGenericException(ex,true);

   174             }

   175         }

   177         @Override

   178         public void childElement(UnmarshallingContext.State state, TagName ea) throws SAXException {

   179             if(ea.matches(entryTag)) {

   180                 state.loader = entryLoader;

   181             } else {

   182                 super.childElement(state,ea);

   183             }

   184         }

   186         @Override

   187         public Collection<QName> getExpectedChildElements() {

   188             return Collections.singleton(entryTag.toQName());

   189         }

   190     };

   192     /**

   193      * Handles &lt;entry> and &lt;/entry>.

   194      *

   195      * The target will be set to a {@link Map}.

   196      */

   197     private final Loader entryLoader = new Loader(false) {

   198         @Override

   199         public void startElement(UnmarshallingContext.State state, TagName ea) {

   200             state.target = new Object[2];  // this is inefficient

   201         }

   203         @Override

   204         public void leaveElement(UnmarshallingContext.State state, TagName ea) {

   205             Object[] keyValue = (Object[])state.target;

   206             Map map = (Map) state.prev.target;

   207             map.put(keyValue[0],keyValue[1]);

   208         }

   210         @Override

   211         public void childElement(UnmarshallingContext.State state, TagName ea) throws SAXException {

   212             if(ea.matches(keyTag)) {

   213                 state.loader = keyLoader;

   214                 state.receiver = keyReceiver;

   215                 return;

   216             }

   217             if(ea.matches(valueTag)) {

   218                 state.loader = valueLoader;

   219                 state.receiver = valueReceiver;

   220                 return;

   221             }

   222             super.childElement(state,ea);

   223         }

   225         @Override

   226         public Collection<QName> getExpectedChildElements() {

   227             return Arrays.asList(keyTag.toQName(),valueTag.toQName());

   228         }

   229     };

   231     private static final class ReceiverImpl implements Receiver {

   232         private final int index;

   233         public ReceiverImpl(int index) {

   234             this.index = index;

   235         }

   236         public void receive(UnmarshallingContext.State state, Object o) {

   237             ((Object[])state.target)[index] = o;

   238         }

   239     }

   241     private static final Receiver keyReceiver = new ReceiverImpl(0);

   242     private static final Receiver valueReceiver = new ReceiverImpl(1);

   244     @Override

   245     public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer) throws SAXException, AccessorException, IOException, XMLStreamException {

   246         ValueT v = acc.get(o);

   247         if(v!=null) {

   248             bareStartTag(w,tagName,v);

   249             for( Map.Entry e : (Set<Map.Entry>)v.entrySet() ) {

   250                 bareStartTag(w,entryTag,null);

   252                 Object key = e.getKey();

   253                 if(key!=null) {

   254                     w.startElement(keyTag,key);

   255                     w.childAsXsiType(key,fieldName,keyBeanInfo, false);

   256                     w.endElement();

   257                 }

   259                 Object value = e.getValue();

   260                 if(value!=null) {

   261                     w.startElement(valueTag,value);

   262                     w.childAsXsiType(value,fieldName,valueBeanInfo, false);

   263                     w.endElement();

   264                 }

   266                 w.endElement();

   267             }

   268             w.endElement();

   269         } else

   270         if(nillable) {

   271             w.startElement(tagName,null);

   272             w.writeXsiNilTrue();

   273             w.endElement();

   274         }

   275     }

   277     private void bareStartTag(XMLSerializer w, Name tagName, Object peer) throws IOException, XMLStreamException, SAXException {

   278         w.startElement(tagName,peer);

   279         w.endNamespaceDecls(peer);

   280         w.endAttributes();

   281     }

   283     @Override

   284     public Accessor getElementPropertyAccessor(String nsUri, String localName) {

   285         if(tagName.equals(nsUri,localName))

   286             return acc;

   287         return null;

   288     }

   290     private static final class Stack<T> {

   291         private Stack<T> parent;

   292         private T value;

   294         private Stack(Stack<T> parent, T value) {

   295             this.parent = parent;

   296             this.value = value;

   297         }

   299         private Stack(T value) {

   300             this.value = value;

   301         }

   303         private static <T> void push(ThreadLocal<Stack<T>> holder, T value) {

   304             Stack<T> parent = holder.get();

   305             if (parent == null)

   306                 holder.set(new Stack<T>(value));

   307             else

   308                 holder.set(new Stack<T>(parent, value));

   309         }

   311         private static <T> T pop(ThreadLocal<Stack<T>> holder) {

   312             Stack<T> current = holder.get();

   313             if (current.parent == null)

   314                 holder.remove();

   315             else

   316                 holder.set(current.parent);

   317             return current.value;

   318         }

   320     }

   321 }

Mercurial > jdk8-mips64-public > jaxws / file revision

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java@b0610cd08440

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/property/SingleMapNodeProperty.java