| /* |
| * Copyright (c) 1997, 2012, 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 |
| * questions. |
| */ |
| |
| 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"); |
| } |
| |
| } |