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

  * or visit www.oracle.com if you need additional information or have any

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  */

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

 import java.lang.reflect.Constructor;

 import java.lang.reflect.InvocationTargetException;

 import java.util.Collection;

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

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

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

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

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

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

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

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

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

 /**

  * Create {@link Property} objects.

  *

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

  */

 public abstract class PropertyFactory {

     private PropertyFactory() {}

     /**

      * Constructors of the {@link Property} implementation.

      */

     private static final Constructor<? extends Property>[] propImpls;

     static {

         Class<? extends Property>[] implClasses = new Class[] {

             SingleElementLeafProperty.class,

             null, // single reference leaf --- but there's no such thing as "reference leaf"

             null, // no such thing as "map leaf"

             ArrayElementLeafProperty.class,

             null, // array reference leaf --- but there's no such thing as "reference leaf"

             null, // no such thing as "map leaf"

             SingleElementNodeProperty.class,

             SingleReferenceNodeProperty.class,

             SingleMapNodeProperty.class,

             ArrayElementNodeProperty.class,

             ArrayReferenceNodeProperty.class,

             null, // map is always a single property (Map doesn't implement Collection)

         };

         propImpls = new Constructor[implClasses.length];

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

             if(implClasses[i]!=null)

                 // this pointless casting necessary for Mustang

                 propImpls[i] = (Constructor)implClasses[i].getConstructors()[0];

         }

     }

     /**

      * Creates/obtains a properly configured {@link Property}

      * object from the given description.

      */

     public static Property create( JAXBContextImpl grammar, RuntimePropertyInfo info ) {

         PropertyKind kind = info.kind();

         switch(kind) {

         case ATTRIBUTE:

             return new AttributeProperty(grammar,(RuntimeAttributePropertyInfo)info);

         case VALUE:

             return new ValueProperty(grammar,(RuntimeValuePropertyInfo)info);

         case ELEMENT:

             if(((RuntimeElementPropertyInfo)info).isValueList())

                 return new ListElementProperty(grammar,(RuntimeElementPropertyInfo) info);

             break;

         case REFERENCE:

         case MAP:

             break;

         default:

             assert false;

         }

         boolean isCollection = info.isCollection();

         boolean isLeaf = isLeaf(info);

         Constructor<? extends Property> c = propImpls[(isLeaf?0:6)+(isCollection?3:0)+kind.propertyIndex];

         try {

             return c.newInstance( grammar, info );

         } catch (InstantiationException e) {

             throw new InstantiationError(e.getMessage());

         } catch (IllegalAccessException e) {

             throw new IllegalAccessError(e.getMessage());

         } catch (InvocationTargetException e) {

             Throwable t = e.getCause();

             if(t instanceof Error)

                 throw (Error)t;

             if(t instanceof RuntimeException)

                 throw (RuntimeException)t;

             throw new AssertionError(t);

         }

     }

     /**

      * Look for the case that can be optimized as a leaf,

      * which is a kind of type whose XML representation is just PCDATA.

      */

     static boolean isLeaf(RuntimePropertyInfo info) {

         Collection<? extends RuntimeTypeInfo> types = info.ref();

         if(types.size()!=1)     return false;

         RuntimeTypeInfo rti = types.iterator().next();

         if(!(rti instanceof RuntimeNonElement)) return false;

         if(info.id()==ID.IDREF)

             // IDREF is always handled as leaf -- Transducer maps IDREF String back to an object

             return true;

         if(((RuntimeNonElement)rti).getTransducer()==null)

             // Transducer!=null means definitely binds to PCDATA.

             // even if transducer==null, a referene might be IDREF,

             // in which case it will still produce PCDATA in this reference.

             return false;

         if(!info.getIndividualType().equals(rti.getType()))

             return false;

         return true;

     }

 }