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

 /*

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  * 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.unmarshaller;

 import javax.xml.namespace.QName;

 import com.sun.xml.internal.bind.DatatypeConverterImpl;

 import com.sun.xml.internal.bind.v2.WellKnownNamespace;

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

 import com.sun.istack.internal.Nullable;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.HashSet;

 import org.xml.sax.Attributes;

 import org.xml.sax.SAXException;

 /**

  * Looks at @xsi:type and forwards to the right {@link Loader}.

  *

  * @author Kohsuke Kawaguchi

  */

 public class XsiTypeLoader extends Loader {

     /**

      * Use this when no @xsi:type was found.

      */

     private final JaxBeanInfo defaultBeanInfo;

     public XsiTypeLoader(JaxBeanInfo defaultBeanInfo) {

         super(true);

         this.defaultBeanInfo = defaultBeanInfo;

     }

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

         JaxBeanInfo beanInfo = parseXsiType(state,ea,defaultBeanInfo);

         if(beanInfo==null)

             beanInfo = defaultBeanInfo;

         Loader loader = beanInfo.getLoader(null,false);

         state.setLoader(loader);

         loader.startElement(state,ea);

     }

     /*pacakge*/ static JaxBeanInfo parseXsiType(UnmarshallingContext.State state, TagName ea, @Nullable JaxBeanInfo defaultBeanInfo) throws SAXException {

         UnmarshallingContext context = state.getContext();

         JaxBeanInfo beanInfo = null;

         // look for @xsi:type

         Attributes atts = ea.atts;

         int idx = atts.getIndex(WellKnownNamespace.XML_SCHEMA_INSTANCE,"type");

         if(idx>=0) {

             // we'll consume the value only when it's a recognized value,

             // so don't consume it just yet.

             String value = atts.getValue(idx);

             QName type = DatatypeConverterImpl._parseQName(value,context);

             if(type==null) {

                 reportError(Messages.NOT_A_QNAME.format(value),true);

             } else {

                 if(defaultBeanInfo!=null && defaultBeanInfo.getTypeNames().contains(type))

                     // if this xsi:type is something that the default type can already handle,

                     // let it do so. This is added as a work around to bug https://jax-ws.dev.java.net/issues/show_bug.cgi?id=195

                     // where a redundant xsi:type="xs:dateTime" causes JAXB to unmarshal XMLGregorianCalendar,

                     // where Date is expected.

                     // this is not a complete fix, as we still won't be able to handle simple type substitution in general,

                     // but none-the-less

                     return defaultBeanInfo;

                 beanInfo = context.getJAXBContext().getGlobalType(type);

                 if(beanInfo==null) { // let's report an error

                     if (context.parent.hasEventHandler() // is somebody listening?

                             && context.shouldErrorBeReported()) { // should we report error?

                         String nearest = context.getJAXBContext().getNearestTypeName(type);

                         if(nearest!=null)

                             reportError(Messages.UNRECOGNIZED_TYPE_NAME_MAYBE.format(type,nearest),true);

                         else

                             reportError(Messages.UNRECOGNIZED_TYPE_NAME.format(type),true);

                     }

                 }

                 // TODO: resurrect the following check

         //                    else

         //                    if(!target.isAssignableFrom(actual)) {

         //                        reportError(context,

         //                            Messages.UNSUBSTITUTABLE_TYPE.format(value,actual.getName(),target.getName()),

         //                            true);

         //                        actual = targetBeanInfo;  // ditto

         //                    }

             }

         }

         return beanInfo;

     }

     static final QName XsiTypeQNAME = new QName(WellKnownNamespace.XML_SCHEMA_INSTANCE,"type");

     @Override

     public Collection<QName> getExpectedAttributes() {

         final Collection<QName> expAttrs =  new HashSet<QName>();

         expAttrs.addAll(super.getExpectedAttributes());

         expAttrs.add(XsiTypeQNAME);

         return Collections.unmodifiableCollection(expAttrs);

     }

 }