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src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/reflect/opt/OptimizedTransducedAccessorFactory.java@dc8316632248 (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/reflect/opt/OptimizedTransducedAccessorFactory.java

Mon, 28 May 2018 10:36:45 +0800

author

aoqi

date

Mon, 28 May 2018 10:36:45 +0800

changeset 1546

dc8316632248

parent 0

373ffda63c9a

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.xml.internal.bind.v2.runtime.reflect.opt;
aoqi@0	27
aoqi@0	28	import java.lang.reflect.Field;
aoqi@0	29	import java.lang.reflect.Modifier;
aoqi@0	30	import java.lang.reflect.Type;
aoqi@0	31	import java.util.HashMap;
aoqi@0	32	import java.util.Map;
aoqi@0	33	import java.util.logging.Level;
aoqi@0	34	import java.util.logging.Logger;
aoqi@0	35
aoqi@0	36	import com.sun.xml.internal.bind.Util;
aoqi@0	37	import com.sun.xml.internal.bind.v2.model.core.TypeInfo;
aoqi@0	38	import com.sun.xml.internal.bind.v2.model.runtime.RuntimeClassInfo;
aoqi@0	39	import com.sun.xml.internal.bind.v2.model.runtime.RuntimePropertyInfo;
aoqi@0	40	import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
aoqi@0	41	import com.sun.xml.internal.bind.v2.runtime.reflect.TransducedAccessor;
aoqi@0	42
aoqi@0	43	import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMClassName;
aoqi@0	44
aoqi@0	45	/**
aoqi@0	46	* Prepares optimized {@link TransducedAccessor} from templates.
aoqi@0	47	*
aoqi@0	48	* @author Kohsuke Kawaguchi
aoqi@0	49	*/
aoqi@0	50	public abstract class OptimizedTransducedAccessorFactory {
aoqi@0	51	private OptimizedTransducedAccessorFactory() {} // no instanciation please
aoqi@0	52
aoqi@0	53	// http://java.sun.com/docs/books/vmspec/2nd-edition/html/ConstantPool.doc.html#75929
aoqi@0	54	// "same runtime package"
aoqi@0	55
aoqi@0	56	private static final Logger logger = Util.getClassLogger();
aoqi@0	57
aoqi@0	58	private static final String fieldTemplateName;
aoqi@0	59	private static final String methodTemplateName;
aoqi@0	60
aoqi@0	61	static {
aoqi@0	62	String s = TransducedAccessor_field_Byte.class.getName();
aoqi@0	63	fieldTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');
aoqi@0	64
aoqi@0	65	s = TransducedAccessor_method_Byte.class.getName();
aoqi@0	66	methodTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');
aoqi@0	67	}
aoqi@0	68
aoqi@0	69	/**
aoqi@0	70	* Gets the optimized {@link TransducedAccessor} if possible.
aoqi@0	71	*
aoqi@0	72	* @return null
aoqi@0	73	* if for some reason it fails to create an optimized version.
aoqi@0	74	*/
aoqi@0	75	public static final TransducedAccessor get(RuntimePropertyInfo prop) {
aoqi@0	76	Accessor acc = prop.getAccessor();
aoqi@0	77
aoqi@0	78	// consider using an optimized TransducedAccessor implementations.
aoqi@0	79	Class opt=null;
aoqi@0	80
aoqi@0	81	TypeInfo<Type,Class> parent = prop.parent();
aoqi@0	82	if(!(parent instanceof RuntimeClassInfo))
aoqi@0	83	return null;
aoqi@0	84
aoqi@0	85	Class dc = ((RuntimeClassInfo)parent).getClazz();
aoqi@0	86	String newClassName = toVMClassName(dc)+"_JaxbXducedAccessor_"+prop.getName();
aoqi@0	87
aoqi@0	88
aoqi@0	89	if(acc instanceof Accessor.FieldReflection) {
aoqi@0	90	// TODO: we also need to make sure that the default xducer is used.
aoqi@0	91	Accessor.FieldReflection racc = (Accessor.FieldReflection) acc;
aoqi@0	92	Field field = racc.f;
aoqi@0	93
aoqi@0	94	int mods = field.getModifiers();
aoqi@0	95	if(Modifier.isPrivate(mods) || Modifier.isFinal(mods))
aoqi@0	96	// we can't access private fields.
aoqi@0	97	// TODO: think about how to improve this case
aoqi@0	98	return null;
aoqi@0	99
aoqi@0	100	Class<?> t = field.getType();
aoqi@0	101	if(t.isPrimitive())
aoqi@0	102	opt = AccessorInjector.prepare( dc,
aoqi@0	103	fieldTemplateName+suffixMap.get(t),
aoqi@0	104	newClassName,
aoqi@0	105	toVMClassName(Bean.class),
aoqi@0	106	toVMClassName(dc),
aoqi@0	107	"f_"+t.getName(),
aoqi@0	108	field.getName() );
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	if(acc.getClass()==Accessor.GetterSetterReflection.class) {
aoqi@0	112	Accessor.GetterSetterReflection gacc = (Accessor.GetterSetterReflection) acc;
aoqi@0	113
aoqi@0	114	if(gacc.getter==null || gacc.setter==null)
aoqi@0	115	return null; // incomplete
aoqi@0	116
aoqi@0	117	Class<?> t = gacc.getter.getReturnType();
aoqi@0	118
aoqi@0	119	if(Modifier.isPrivate(gacc.getter.getModifiers())
aoqi@0	120	|| Modifier.isPrivate(gacc.setter.getModifiers()))
aoqi@0	121	// we can't access private methods.
aoqi@0	122	return null;
aoqi@0	123
aoqi@0	124
aoqi@0	125	if(t.isPrimitive())
aoqi@0	126	opt = AccessorInjector.prepare( dc,
aoqi@0	127	methodTemplateName+suffixMap.get(t),
aoqi@0	128	newClassName,
aoqi@0	129	toVMClassName(Bean.class),
aoqi@0	130	toVMClassName(dc),
aoqi@0	131	"get_"+t.getName(),
aoqi@0	132	gacc.getter.getName(),
aoqi@0	133	"set_"+t.getName(),
aoqi@0	134	gacc.setter.getName());
aoqi@0	135	}
aoqi@0	136
aoqi@0	137	if(opt==null)
aoqi@0	138	return null;
aoqi@0	139
aoqi@0	140	logger.log(Level.FINE,"Using optimized TransducedAccessor for "+prop.displayName());
aoqi@0	141
aoqi@0	142
aoqi@0	143	try {
aoqi@0	144	return (TransducedAccessor)opt.newInstance();
aoqi@0	145	} catch (InstantiationException e) {
aoqi@0	146	logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);
aoqi@0	147	} catch (IllegalAccessException e) {
aoqi@0	148	logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);
aoqi@0	149	} catch (SecurityException e) {
aoqi@0	150	logger.log(Level.INFO,"failed to load an optimized TransducedAccessor",e);
aoqi@0	151	}
aoqi@0	152	return null;
aoqi@0	153	}
aoqi@0	154
aoqi@0	155	private static final Map<Class,String> suffixMap = new HashMap<Class, String>();
aoqi@0	156
aoqi@0	157	static {
aoqi@0	158	suffixMap.put(Byte.TYPE,"Byte");
aoqi@0	159	suffixMap.put(Short.TYPE,"Short");
aoqi@0	160	suffixMap.put(Integer.TYPE,"Integer");
aoqi@0	161	suffixMap.put(Long.TYPE,"Long");
aoqi@0	162	suffixMap.put(Boolean.TYPE,"Boolean");
aoqi@0	163	suffixMap.put(Float.TYPE,"Float");
aoqi@0	164	suffixMap.put(Double.TYPE,"Double");
aoqi@0	165	}
aoqi@0	166
aoqi@0	167	}