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

 /*

  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

 import java.io.IOException;

 import java.lang.reflect.Modifier;

 import java.lang.reflect.Type;

 import java.util.HashMap;

 import java.util.Map;

 import javax.xml.namespace.QName;

 import javax.xml.stream.XMLStreamException;

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

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

 import com.sun.xml.internal.bind.v2.model.core.TypeRef;

 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeElementPropertyInfo;

 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeTypeInfo;

 import com.sun.xml.internal.bind.v2.model.runtime.RuntimeTypeRef;

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

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

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

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

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

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

 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.DefaultValueLoaderDecorator;

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

 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.XsiNilLoader;

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

 import javax.xml.bind.JAXBElement;

 import org.xml.sax.SAXException;

 /**

  * @author Kohsuke Kawaguchi (kk@kohsuke.org)

  */

 final class SingleElementNodeProperty<BeanT,ValueT> extends PropertyImpl<BeanT> {

     private final Accessor<BeanT,ValueT> acc;

     private final boolean nillable;

     private final QName[] acceptedElements;

     private final Map<Class,TagAndType> typeNames = new HashMap<Class,TagAndType>();

     private RuntimeElementPropertyInfo prop;

     /**

      * The tag name used to produce xsi:nil. The first one in the list.

      */

     private final Name nullTagName;

     public SingleElementNodeProperty(JAXBContextImpl context, RuntimeElementPropertyInfo prop) {

         super(context,prop);

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

         this.prop = prop;

         QName nt = null;

         boolean nil = false;

         acceptedElements = new QName[prop.getTypes().size()];

         for( int i=0; i<acceptedElements.length; i++ )

             acceptedElements[i] = prop.getTypes().get(i).getTagName();

         for (RuntimeTypeRef e : prop.getTypes()) {

             JaxBeanInfo beanInfo = context.getOrCreate(e.getTarget());

             if(nt==null)    nt = e.getTagName();

             typeNames.put( beanInfo.jaxbType, new TagAndType(

                 context.nameBuilder.createElementName(e.getTagName()),beanInfo) );

             nil |= e.isNillable();

         }

         nullTagName = context.nameBuilder.createElementName(nt);

         nillable = nil;

     }

     @Override

     public void wrapUp() {

         super.wrapUp();

         prop = null;

     }

     public void reset(BeanT bean) throws AccessorException {

         acc.set(bean,null);

     }

     public String getIdValue(BeanT beanT) {

         return null;

     }

     @Override

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

         ValueT v = acc.get(o);

         if (v!=null) {

             Class vtype = v.getClass();

             TagAndType tt=typeNames.get(vtype); // quick way that usually works

             if(tt==null) {// slow way that always works

                 for (Map.Entry<Class,TagAndType> e : typeNames.entrySet()) {

                     if(e.getKey().isAssignableFrom(vtype)) {

                         tt = e.getValue();

                         break;

                     }

                 }

             }

             boolean addNilDecl = (o instanceof JAXBElement) && ((JAXBElement)o).isNil();

             if(tt==null) {

                 // actually this is an error, because the actual type was not a sub-type

                 // of any of the types specified in the annotations,

                 // but for the purpose of experimenting with simple type substitution,

                 // it's convenient to marshal this anyway (for example so that classes

                 // generated from simple types like String can be marshalled as expected.)

                 w.startElement(typeNames.values().iterator().next().tagName,null);

                 w.childAsXsiType(v,fieldName,w.grammar.getBeanInfo(Object.class), addNilDecl && nillable);

             } else {

                 w.startElement(tt.tagName,null);

                 w.childAsXsiType(v,fieldName,tt.beanInfo, addNilDecl && nillable);

             }

             w.endElement();

         } else if (nillable) {

             w.startElement(nullTagName,null);

             w.writeXsiNilTrue();

             w.endElement();

         }

     }

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

         JAXBContextImpl context = chain.context;

         for (TypeRef<Type,Class> e : prop.getTypes()) {

             JaxBeanInfo bi = context.getOrCreate((RuntimeTypeInfo) e.getTarget());

             // if the expected Java type is already final, type substitution won't really work anyway.

             // this also traps cases like trying to substitute xsd:long element with xsi:type='xsd:int'

             Loader l = bi.getLoader(context,!Modifier.isFinal(bi.jaxbType.getModifiers()));

             if(e.getDefaultValue()!=null)

                 l = new DefaultValueLoaderDecorator(l,e.getDefaultValue());

             if(nillable || chain.context.allNillable)

                 l = new XsiNilLoader.Single(l,acc);

             handlers.put( e.getTagName(), new ChildLoader(l,acc));

         }

     }

     public PropertyKind getKind() {

         return PropertyKind.ELEMENT;

     }

     @Override

     public Accessor getElementPropertyAccessor(String nsUri, String localName) {

         for( QName n : acceptedElements) {

             if(n.getNamespaceURI().equals(nsUri) && n.getLocalPart().equals(localName))

                 return acc;

         }

         return null;

     }

 }