| /* |
| * Copyright (c) 1997, 2013, 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.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import com.sun.xml.internal.bind.Util; |
| import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor; |
| import com.sun.xml.internal.bind.v2.runtime.RuntimeUtil; |
| |
| import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMClassName; |
| import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMTypeName; |
| |
| /** |
| * @author Kohsuke Kawaguchi |
| */ |
| public abstract class OptimizedAccessorFactory { |
| private OptimizedAccessorFactory() {} // no instanciation please |
| |
| private static final Logger logger = Util.getClassLogger(); |
| |
| |
| private static final String fieldTemplateName; |
| private static final String methodTemplateName; |
| |
| static { |
| String s = FieldAccessor_Byte.class.getName(); |
| fieldTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/'); |
| |
| s = MethodAccessor_Byte.class.getName(); |
| methodTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/'); |
| } |
| |
| /** |
| * Gets the optimized {@link Accessor} that accesses the given getter/setter. |
| * |
| * @return null |
| * if for some reason it fails to create an optimized version. |
| */ |
| public static final <B,V> Accessor<B,V> get(Method getter, Method setter) { |
| // make sure the method signatures are what we expect |
| if(getter.getParameterTypes().length!=0) |
| return null; |
| Class<?>[] sparams = setter.getParameterTypes(); |
| if(sparams.length!=1) |
| return null; |
| if(sparams[0]!=getter.getReturnType()) |
| return null; |
| if(setter.getReturnType()!=Void.TYPE) |
| return null; |
| if(getter.getDeclaringClass()!=setter.getDeclaringClass()) |
| return null; |
| if(Modifier.isPrivate(getter.getModifiers()) || Modifier.isPrivate(setter.getModifiers())) |
| // we can't access private fields |
| return null; |
| |
| Class t = sparams[0]; |
| String typeName = t.getName().replace('.','_'); |
| if (t.isArray()) { |
| typeName = "AOf_"; |
| String compName = t.getComponentType().getName().replace('.','_'); |
| while (compName.startsWith("[L")) { |
| compName = compName.substring(2); |
| typeName += "AOf_"; |
| } |
| typeName = typeName + compName; |
| } |
| |
| String newClassName = toVMClassName(getter.getDeclaringClass())+"$JaxbAccessorM_"+getter.getName()+'_'+setter.getName()+'_'+typeName; |
| Class opt; |
| |
| if(t.isPrimitive()) |
| opt = AccessorInjector.prepare( getter.getDeclaringClass(), |
| methodTemplateName+RuntimeUtil.primitiveToBox.get(t).getSimpleName(), |
| newClassName, |
| toVMClassName(Bean.class), |
| toVMClassName(getter.getDeclaringClass()), |
| "get_"+t.getName(), |
| getter.getName(), |
| "set_"+t.getName(), |
| setter.getName()); |
| else |
| opt = AccessorInjector.prepare( getter.getDeclaringClass(), |
| methodTemplateName+"Ref", |
| newClassName, |
| toVMClassName(Bean.class), |
| toVMClassName(getter.getDeclaringClass()), |
| toVMClassName(Ref.class), |
| toVMClassName(t), |
| "()"+toVMTypeName(Ref.class), |
| "()"+toVMTypeName(t), |
| '('+toVMTypeName(Ref.class)+")V", |
| '('+toVMTypeName(t)+")V", |
| "get_ref", |
| getter.getName(), |
| "set_ref", |
| setter.getName()); |
| |
| if(opt==null) |
| return null; |
| |
| Accessor<B,V> acc = instanciate(opt); |
| if (acc!=null) { |
| if (logger.isLoggable(Level.FINE)) { |
| logger.log(Level.FINE, "Using optimized Accessor for {0} and {1}", new Object[]{getter, setter}); |
| } |
| } |
| return acc; |
| } |
| |
| |
| /** |
| * Gets the optimized {@link Accessor} that accesses the given field. |
| * |
| * @return null |
| * if for some reason it fails to create an optimized version. |
| */ |
| public static final <B,V> Accessor<B,V> get(Field field) { |
| int mods = field.getModifiers(); |
| if(Modifier.isPrivate(mods) || Modifier.isFinal(mods)) |
| // we can't access private fields |
| return null; |
| |
| String newClassName = toVMClassName(field.getDeclaringClass())+"$JaxbAccessorF_"+field.getName(); |
| |
| Class opt; |
| |
| if(field.getType().isPrimitive()) |
| opt = AccessorInjector.prepare( field.getDeclaringClass(), |
| fieldTemplateName+RuntimeUtil.primitiveToBox.get(field.getType()).getSimpleName(), |
| newClassName, |
| toVMClassName(Bean.class), |
| toVMClassName(field.getDeclaringClass()), |
| "f_"+field.getType().getName(), |
| field.getName() ); |
| else |
| opt = AccessorInjector.prepare( field.getDeclaringClass(), |
| fieldTemplateName+"Ref", |
| newClassName, |
| toVMClassName(Bean.class), |
| toVMClassName(field.getDeclaringClass()), |
| toVMClassName(Ref.class), |
| toVMClassName(field.getType()), |
| toVMTypeName(Ref.class), |
| toVMTypeName(field.getType()), |
| "f_ref", |
| field.getName() ); |
| |
| if(opt==null) |
| return null; |
| |
| Accessor<B,V> acc = instanciate(opt); |
| if (acc!=null) { |
| if (logger.isLoggable(Level.FINE)) { |
| logger.log(Level.FINE, "Using optimized Accessor for {0}", field); |
| } |
| } |
| return acc; |
| } |
| |
| private static <B,V> Accessor<B,V> instanciate(Class opt) { |
| try { |
| return (Accessor<B,V>)opt.newInstance(); |
| } catch (InstantiationException e) { |
| logger.log(Level.INFO,"failed to load an optimized Accessor",e); |
| } catch (IllegalAccessException e) { |
| logger.log(Level.INFO,"failed to load an optimized Accessor",e); |
| } catch (SecurityException e) { |
| logger.log(Level.INFO,"failed to load an optimized Accessor",e); |
| } |
| return null; |
| } |
| } |