Mercurial > jdk8-mips64-public > jaxws / annotate
src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/reflect/opt/AccessorInjector.java@9c07ef4934dd (annotated)
src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/reflect/opt/AccessorInjector.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.io.InputStream; |
| aoqi@0 | 29 | import java.util.logging.Level; |
| aoqi@0 | 30 | import java.util.logging.Logger; |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | import com.sun.xml.internal.bind.Util; |
| aoqi@0 | 33 | import com.sun.xml.internal.bind.v2.bytecode.ClassTailor; |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | /** |
| aoqi@0 | 36 | * @author Kohsuke Kawaguchi |
| aoqi@0 | 37 | */ |
| aoqi@0 | 38 | class AccessorInjector { |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | private static final Logger logger = Util.getClassLogger(); |
| aoqi@0 | 41 | |
| aoqi@0 | 42 | protected static final boolean noOptimize = |
| aoqi@0 | 43 | Util.getSystemProperty(ClassTailor.class.getName()+".noOptimize")!=null; |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | static { |
| aoqi@0 | 46 | if(noOptimize) |
| aoqi@0 | 47 | logger.info("The optimized code generation is disabled"); |
| aoqi@0 | 48 | } |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | /** |
| aoqi@0 | 51 | * Loads the optimized class and returns it. |
| aoqi@0 | 52 | * |
| aoqi@0 | 53 | * @return null |
| aoqi@0 | 54 | * if it fails for some reason. |
| aoqi@0 | 55 | */ |
| aoqi@0 | 56 | public static Class<?> prepare( |
| aoqi@0 | 57 | Class beanClass, String templateClassName, String newClassName, String... replacements ) { |
| aoqi@0 | 58 | |
| aoqi@0 | 59 | if(noOptimize) |
| aoqi@0 | 60 | return null; |
| aoqi@0 | 61 | |
| aoqi@0 | 62 | try { |
| aoqi@0 | 63 | ClassLoader cl = SecureLoader.getClassClassLoader(beanClass); |
| aoqi@0 | 64 | if(cl==null) return null; // how do I inject classes to this "null" class loader? for now, back off. |
| aoqi@0 | 65 | |
| aoqi@0 | 66 | Class c = Injector.find(cl,newClassName); |
| aoqi@0 | 67 | if (c==null) { |
| aoqi@0 | 68 | byte[] image = tailor(templateClassName,newClassName,replacements); |
| aoqi@0 | 69 | if (image==null) { |
| aoqi@0 | 70 | return null; |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | c = Injector.inject(cl,newClassName,image); |
| aoqi@0 | 73 | if (c == null) { |
| aoqi@0 | 74 | Injector.find(cl, newClassName); |
| aoqi@0 | 75 | } |
| aoqi@0 | 76 | } |
| aoqi@0 | 77 | return c; |
| aoqi@0 | 78 | } catch(SecurityException e) { |
| aoqi@0 | 79 | // we don't have enough permission to do this |
| aoqi@0 | 80 | logger.log(Level.INFO,"Unable to create an optimized TransducedAccessor ",e); |
| aoqi@0 | 81 | return null; |
| aoqi@0 | 82 | } |
| aoqi@0 | 83 | } |
| aoqi@0 | 84 | |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | /** |
| aoqi@0 | 87 | * Customizes a class file by replacing constant pools. |
| aoqi@0 | 88 | * |
| aoqi@0 | 89 | * @param templateClassName |
| aoqi@0 | 90 | * The resource that contains the template class file. |
| aoqi@0 | 91 | * @param replacements |
| aoqi@0 | 92 | * A list of pair of strings that specify the substitution |
| aoqi@0 | 93 | * {@code String[]{search_0, replace_0, search_1, replace_1, ..., search_n, replace_n } |
| aoqi@0 | 94 | * |
| aoqi@0 | 95 | * The search strings found in the constant pool will be replaced by the corresponding |
| aoqi@0 | 96 | * replacement string. |
| aoqi@0 | 97 | */ |
| aoqi@0 | 98 | private static byte[] tailor( String templateClassName, String newClassName, String... replacements ) { |
| aoqi@0 | 99 | InputStream resource; |
| aoqi@0 | 100 | if(CLASS_LOADER!=null) |
| aoqi@0 | 101 | resource = CLASS_LOADER.getResourceAsStream(templateClassName+".class"); |
| aoqi@0 | 102 | else |
| aoqi@0 | 103 | resource = ClassLoader.getSystemResourceAsStream(templateClassName+".class"); |
| aoqi@0 | 104 | if(resource==null) |
| aoqi@0 | 105 | return null; |
| aoqi@0 | 106 | |
| aoqi@0 | 107 | return ClassTailor.tailor(resource,templateClassName,newClassName,replacements); |
| aoqi@0 | 108 | } |
| aoqi@0 | 109 | |
| aoqi@0 | 110 | private static final ClassLoader CLASS_LOADER = SecureLoader.getClassClassLoader(AccessorInjector.class); |
| aoqi@0 | 111 | |
| aoqi@0 | 112 | } |
