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.reflect.opt;

 import java.lang.reflect.Field;

 import java.lang.reflect.Modifier;

 import java.lang.reflect.Type;

 import java.util.HashMap;

 import java.util.Map;

 import java.util.logging.Level;

 import java.util.logging.Logger;

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

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

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

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

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

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

 import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMClassName;

 /**

  * Prepares optimized {@link TransducedAccessor} from templates.

  *

  * @author Kohsuke Kawaguchi

  */

 public abstract class OptimizedTransducedAccessorFactory {

     private OptimizedTransducedAccessorFactory() {} // no instanciation please

     // http://java.sun.com/docs/books/vmspec/2nd-edition/html/ConstantPool.doc.html#75929

     // "same runtime package"

     private static final Logger logger = Util.getClassLogger();

     private static final String fieldTemplateName;

     private static final String methodTemplateName;

     static {

         String s = TransducedAccessor_field_Byte.class.getName();

         fieldTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');

         s = TransducedAccessor_method_Byte.class.getName();

         methodTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');

     }

     /**

      * Gets the optimized {@link TransducedAccessor} if possible.

      *

      * @return null

      *      if for some reason it fails to create an optimized version.

      */

     public static final TransducedAccessor get(RuntimePropertyInfo prop) {

         Accessor acc = prop.getAccessor();

         // consider using an optimized TransducedAccessor implementations.

         Class opt=null;

         TypeInfo<Type,Class> parent = prop.parent();

         if(!(parent instanceof RuntimeClassInfo))

             return null;

         Class dc = ((RuntimeClassInfo)parent).getClazz();

         String newClassName = toVMClassName(dc)+"_JaxbXducedAccessor_"+prop.getName();

         if(acc instanceof Accessor.FieldReflection) {

             // TODO: we also need to make sure that the default xducer is used.

             Accessor.FieldReflection racc = (Accessor.FieldReflection) acc;

             Field field = racc.f;

             int mods = field.getModifiers();

             if(Modifier.isPrivate(mods) || Modifier.isFinal(mods))

                 // we can't access private fields.

                 // TODO: think about how to improve this case

                 return null;

             Class<?> t = field.getType();

             if(t.isPrimitive())

                 opt = AccessorInjector.prepare( dc,

                     fieldTemplateName+suffixMap.get(t),

                     newClassName,

                     toVMClassName(Bean.class),

                     toVMClassName(dc),

                     "f_"+t.getName(),

                     field.getName() );

         }

         if(acc.getClass()==Accessor.GetterSetterReflection.class) {

             Accessor.GetterSetterReflection gacc = (Accessor.GetterSetterReflection) acc;

             if(gacc.getter==null || gacc.setter==null)

                 return null;    // incomplete

             Class<?> t = gacc.getter.getReturnType();

             if(Modifier.isPrivate(gacc.getter.getModifiers())

             || Modifier.isPrivate(gacc.setter.getModifiers()))

                 // we can't access private methods.

                 return null;

             if(t.isPrimitive())

                 opt = AccessorInjector.prepare( dc,

                     methodTemplateName+suffixMap.get(t),

                     newClassName,

                     toVMClassName(Bean.class),

                     toVMClassName(dc),

                     "get_"+t.getName(),

                     gacc.getter.getName(),

                     "set_"+t.getName(),

                     gacc.setter.getName());

         }

         if(opt==null)

             return null;

         logger.log(Level.FINE,"Using optimized TransducedAccessor for "+prop.displayName());

         try {

             return (TransducedAccessor)opt.newInstance();

         } catch (InstantiationException e) {

             logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);

         } catch (IllegalAccessException e) {

             logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);

         } catch (SecurityException e) {

             logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);

         }

         return null;

     }

     private static final Map<Class,String> suffixMap = new HashMap<Class, String>();

     static {

         suffixMap.put(Byte.TYPE,"Byte");

         suffixMap.put(Short.TYPE,"Short");

         suffixMap.put(Integer.TYPE,"Integer");

         suffixMap.put(Long.TYPE,"Long");

         suffixMap.put(Boolean.TYPE,"Boolean");

         suffixMap.put(Float.TYPE,"Float");

         suffixMap.put(Double.TYPE,"Double");

     }

 }