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src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/reflect/opt/OptimizedAccessorFactory.java@9c07ef4934dd (annotated)

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

Thu, 31 Aug 2017 15:18:52 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:18:52 +0800

changeset 637

9c07ef4934dd

parent 408

b0610cd08440

parent 0

373ffda63c9a

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2013, 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.Method;
aoqi@0	30	import java.lang.reflect.Modifier;
aoqi@0	31	import java.util.logging.Level;
aoqi@0	32	import java.util.logging.Logger;
aoqi@0	33
aoqi@0	34	import com.sun.xml.internal.bind.Util;
aoqi@0	35	import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;
aoqi@0	36	import com.sun.xml.internal.bind.v2.runtime.RuntimeUtil;
aoqi@0	37
aoqi@0	38	import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMClassName;
aoqi@0	39	import static com.sun.xml.internal.bind.v2.bytecode.ClassTailor.toVMTypeName;
aoqi@0	40
aoqi@0	41	/**
aoqi@0	42	* @author Kohsuke Kawaguchi
aoqi@0	43	*/
aoqi@0	44	public abstract class OptimizedAccessorFactory {
aoqi@0	45	private OptimizedAccessorFactory() {} // no instanciation please
aoqi@0	46
aoqi@0	47	private static final Logger logger = Util.getClassLogger();
aoqi@0	48
aoqi@0	49
aoqi@0	50	private static final String fieldTemplateName;
aoqi@0	51	private static final String methodTemplateName;
aoqi@0	52
aoqi@0	53	static {
aoqi@0	54	String s = FieldAccessor_Byte.class.getName();
aoqi@0	55	fieldTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');
aoqi@0	56
aoqi@0	57	s = MethodAccessor_Byte.class.getName();
aoqi@0	58	methodTemplateName = s.substring(0,s.length()-"Byte".length()).replace('.','/');
aoqi@0	59	}
aoqi@0	60
aoqi@0	61	/**
aoqi@0	62	* Gets the optimized {@link Accessor} that accesses the given getter/setter.
aoqi@0	63	*
aoqi@0	64	* @return null
aoqi@0	65	* if for some reason it fails to create an optimized version.
aoqi@0	66	*/
aoqi@0	67	public static final <B,V> Accessor<B,V> get(Method getter, Method setter) {
aoqi@0	68	// make sure the method signatures are what we expect
aoqi@0	69	if(getter.getParameterTypes().length!=0)
aoqi@0	70	return null;
aoqi@0	71	Class<?>[] sparams = setter.getParameterTypes();
aoqi@0	72	if(sparams.length!=1)
aoqi@0	73	return null;
aoqi@0	74	if(sparams[0]!=getter.getReturnType())
aoqi@0	75	return null;
aoqi@0	76	if(setter.getReturnType()!=Void.TYPE)
aoqi@0	77	return null;
aoqi@0	78	if(getter.getDeclaringClass()!=setter.getDeclaringClass())
aoqi@0	79	return null;
aoqi@0	80	if(Modifier.isPrivate(getter.getModifiers()) || Modifier.isPrivate(setter.getModifiers()))
aoqi@0	81	// we can't access private fields
aoqi@0	82	return null;
aoqi@0	83
aoqi@0	84	Class t = sparams[0];
aoqi@0	85	String typeName = t.getName().replace('.','_');
aoqi@0	86	if (t.isArray()) {
aoqi@0	87	typeName = "AOf_";
aoqi@0	88	String compName = t.getComponentType().getName().replace('.','_');
aoqi@0	89	while (compName.startsWith("[L")) {
aoqi@0	90	compName = compName.substring(2);
aoqi@0	91	typeName += "AOf_";
aoqi@0	92	}
aoqi@0	93	typeName = typeName + compName;
aoqi@0	94	}
aoqi@0	95
aoqi@0	96	String newClassName = toVMClassName(getter.getDeclaringClass())+"$JaxbAccessorM_"+getter.getName()+'_'+setter.getName()+'_'+typeName;
aoqi@0	97	Class opt;
aoqi@0	98
aoqi@0	99	if(t.isPrimitive())
aoqi@0	100	opt = AccessorInjector.prepare( getter.getDeclaringClass(),
aoqi@0	101	methodTemplateName+RuntimeUtil.primitiveToBox.get(t).getSimpleName(),
aoqi@0	102	newClassName,
aoqi@0	103	toVMClassName(Bean.class),
aoqi@0	104	toVMClassName(getter.getDeclaringClass()),
aoqi@0	105	"get_"+t.getName(),
aoqi@0	106	getter.getName(),
aoqi@0	107	"set_"+t.getName(),
aoqi@0	108	setter.getName());
aoqi@0	109	else
aoqi@0	110	opt = AccessorInjector.prepare( getter.getDeclaringClass(),
aoqi@0	111	methodTemplateName+"Ref",
aoqi@0	112	newClassName,
aoqi@0	113	toVMClassName(Bean.class),
aoqi@0	114	toVMClassName(getter.getDeclaringClass()),
aoqi@0	115	toVMClassName(Ref.class),
aoqi@0	116	toVMClassName(t),
aoqi@0	117	"()"+toVMTypeName(Ref.class),
aoqi@0	118	"()"+toVMTypeName(t),
aoqi@0	119	'('+toVMTypeName(Ref.class)+")V",
aoqi@0	120	'('+toVMTypeName(t)+")V",
aoqi@0	121	"get_ref",
aoqi@0	122	getter.getName(),
aoqi@0	123	"set_ref",
aoqi@0	124	setter.getName());
aoqi@0	125
aoqi@0	126	if(opt==null)
aoqi@0	127	return null;
aoqi@0	128
aoqi@0	129	Accessor<B,V> acc = instanciate(opt);
aoqi@0	130	if (acc!=null) {
aoqi@0	131	if (logger.isLoggable(Level.FINE)) {
aoqi@0	132	logger.log(Level.FINE, "Using optimized Accessor for {0} and {1}", new Object[]{getter, setter});
aoqi@0	133	}
aoqi@0	134	}
aoqi@0	135	return acc;
aoqi@0	136	}
aoqi@0	137
aoqi@0	138
aoqi@0	139	/**
aoqi@0	140	* Gets the optimized {@link Accessor} that accesses the given field.
aoqi@0	141	*
aoqi@0	142	* @return null
aoqi@0	143	* if for some reason it fails to create an optimized version.
aoqi@0	144	*/
aoqi@0	145	public static final <B,V> Accessor<B,V> get(Field field) {
aoqi@0	146	int mods = field.getModifiers();
aoqi@0	147	if(Modifier.isPrivate(mods) || Modifier.isFinal(mods))
aoqi@0	148	// we can't access private fields
aoqi@0	149	return null;
aoqi@0	150
aoqi@0	151	String newClassName = toVMClassName(field.getDeclaringClass())+"$JaxbAccessorF_"+field.getName();
aoqi@0	152
aoqi@0	153	Class opt;
aoqi@0	154
aoqi@0	155	if(field.getType().isPrimitive())
aoqi@0	156	opt = AccessorInjector.prepare( field.getDeclaringClass(),
aoqi@0	157	fieldTemplateName+RuntimeUtil.primitiveToBox.get(field.getType()).getSimpleName(),
aoqi@0	158	newClassName,
aoqi@0	159	toVMClassName(Bean.class),
aoqi@0	160	toVMClassName(field.getDeclaringClass()),
aoqi@0	161	"f_"+field.getType().getName(),
aoqi@0	162	field.getName() );
aoqi@0	163	else
aoqi@0	164	opt = AccessorInjector.prepare( field.getDeclaringClass(),
aoqi@0	165	fieldTemplateName+"Ref",
aoqi@0	166	newClassName,
aoqi@0	167	toVMClassName(Bean.class),
aoqi@0	168	toVMClassName(field.getDeclaringClass()),
aoqi@0	169	toVMClassName(Ref.class),
aoqi@0	170	toVMClassName(field.getType()),
aoqi@0	171	toVMTypeName(Ref.class),
aoqi@0	172	toVMTypeName(field.getType()),
aoqi@0	173	"f_ref",
aoqi@0	174	field.getName() );
aoqi@0	175
aoqi@0	176	if(opt==null)
aoqi@0	177	return null;
aoqi@0	178
aoqi@0	179	Accessor<B,V> acc = instanciate(opt);
aoqi@0	180	if (acc!=null) {
aoqi@0	181	if (logger.isLoggable(Level.FINE)) {
aoqi@0	182	logger.log(Level.FINE, "Using optimized Accessor for {0}", field);
aoqi@0	183	}
aoqi@0	184	}
aoqi@0	185	return acc;
aoqi@0	186	}
aoqi@0	187
aoqi@0	188	private static <B,V> Accessor<B,V> instanciate(Class opt) {
aoqi@0	189	try {
aoqi@0	190	return (Accessor<B,V>)opt.newInstance();
aoqi@0	191	} catch (InstantiationException e) {
aoqi@0	192	logger.log(Level.INFO,"failed to load an optimized Accessor",e);
aoqi@0	193	} catch (IllegalAccessException e) {
aoqi@0	194	logger.log(Level.INFO,"failed to load an optimized Accessor",e);
aoqi@0	195	} catch (SecurityException e) {
aoqi@0	196	logger.log(Level.INFO,"failed to load an optimized Accessor",e);
aoqi@0	197	}
aoqi@0	198	return null;
aoqi@0	199	}
aoqi@0	200	}