J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001-2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.reflect; |
| 27 | |
| 28 | import java.lang.reflect.Field; |
| 29 | import java.lang.reflect.Modifier; |
| 30 | |
| 31 | class UnsafeFieldAccessorFactory { |
| 32 | static FieldAccessor newFieldAccessor(Field field, boolean override) { |
| 33 | Class type = field.getType(); |
| 34 | boolean isStatic = Modifier.isStatic(field.getModifiers()); |
| 35 | boolean isFinal = Modifier.isFinal(field.getModifiers()); |
| 36 | boolean isVolatile = Modifier.isVolatile(field.getModifiers()); |
| 37 | boolean isQualified = isFinal || isVolatile; |
| 38 | boolean isReadOnly = isFinal && (isStatic || !override); |
| 39 | if (isStatic) { |
| 40 | // This code path does not guarantee that the field's |
| 41 | // declaring class has been initialized, but it must be |
| 42 | // before performing reflective operations. |
| 43 | UnsafeFieldAccessorImpl.unsafe.ensureClassInitialized(field.getDeclaringClass()); |
| 44 | |
| 45 | if (!isQualified) { |
| 46 | if (type == Boolean.TYPE) { |
| 47 | return new UnsafeStaticBooleanFieldAccessorImpl(field); |
| 48 | } else if (type == Byte.TYPE) { |
| 49 | return new UnsafeStaticByteFieldAccessorImpl(field); |
| 50 | } else if (type == Short.TYPE) { |
| 51 | return new UnsafeStaticShortFieldAccessorImpl(field); |
| 52 | } else if (type == Character.TYPE) { |
| 53 | return new UnsafeStaticCharacterFieldAccessorImpl(field); |
| 54 | } else if (type == Integer.TYPE) { |
| 55 | return new UnsafeStaticIntegerFieldAccessorImpl(field); |
| 56 | } else if (type == Long.TYPE) { |
| 57 | return new UnsafeStaticLongFieldAccessorImpl(field); |
| 58 | } else if (type == Float.TYPE) { |
| 59 | return new UnsafeStaticFloatFieldAccessorImpl(field); |
| 60 | } else if (type == Double.TYPE) { |
| 61 | return new UnsafeStaticDoubleFieldAccessorImpl(field); |
| 62 | } else { |
| 63 | return new UnsafeStaticObjectFieldAccessorImpl(field); |
| 64 | } |
| 65 | } else { |
| 66 | if (type == Boolean.TYPE) { |
| 67 | return new UnsafeQualifiedStaticBooleanFieldAccessorImpl(field, isReadOnly); |
| 68 | } else if (type == Byte.TYPE) { |
| 69 | return new UnsafeQualifiedStaticByteFieldAccessorImpl(field, isReadOnly); |
| 70 | } else if (type == Short.TYPE) { |
| 71 | return new UnsafeQualifiedStaticShortFieldAccessorImpl(field, isReadOnly); |
| 72 | } else if (type == Character.TYPE) { |
| 73 | return new UnsafeQualifiedStaticCharacterFieldAccessorImpl(field, isReadOnly); |
| 74 | } else if (type == Integer.TYPE) { |
| 75 | return new UnsafeQualifiedStaticIntegerFieldAccessorImpl(field, isReadOnly); |
| 76 | } else if (type == Long.TYPE) { |
| 77 | return new UnsafeQualifiedStaticLongFieldAccessorImpl(field, isReadOnly); |
| 78 | } else if (type == Float.TYPE) { |
| 79 | return new UnsafeQualifiedStaticFloatFieldAccessorImpl(field, isReadOnly); |
| 80 | } else if (type == Double.TYPE) { |
| 81 | return new UnsafeQualifiedStaticDoubleFieldAccessorImpl(field, isReadOnly); |
| 82 | } else { |
| 83 | return new UnsafeQualifiedStaticObjectFieldAccessorImpl(field, isReadOnly); |
| 84 | } |
| 85 | } |
| 86 | } else { |
| 87 | if (!isQualified) { |
| 88 | if (type == Boolean.TYPE) { |
| 89 | return new UnsafeBooleanFieldAccessorImpl(field); |
| 90 | } else if (type == Byte.TYPE) { |
| 91 | return new UnsafeByteFieldAccessorImpl(field); |
| 92 | } else if (type == Short.TYPE) { |
| 93 | return new UnsafeShortFieldAccessorImpl(field); |
| 94 | } else if (type == Character.TYPE) { |
| 95 | return new UnsafeCharacterFieldAccessorImpl(field); |
| 96 | } else if (type == Integer.TYPE) { |
| 97 | return new UnsafeIntegerFieldAccessorImpl(field); |
| 98 | } else if (type == Long.TYPE) { |
| 99 | return new UnsafeLongFieldAccessorImpl(field); |
| 100 | } else if (type == Float.TYPE) { |
| 101 | return new UnsafeFloatFieldAccessorImpl(field); |
| 102 | } else if (type == Double.TYPE) { |
| 103 | return new UnsafeDoubleFieldAccessorImpl(field); |
| 104 | } else { |
| 105 | return new UnsafeObjectFieldAccessorImpl(field); |
| 106 | } |
| 107 | } else { |
| 108 | if (type == Boolean.TYPE) { |
| 109 | return new UnsafeQualifiedBooleanFieldAccessorImpl(field, isReadOnly); |
| 110 | } else if (type == Byte.TYPE) { |
| 111 | return new UnsafeQualifiedByteFieldAccessorImpl(field, isReadOnly); |
| 112 | } else if (type == Short.TYPE) { |
| 113 | return new UnsafeQualifiedShortFieldAccessorImpl(field, isReadOnly); |
| 114 | } else if (type == Character.TYPE) { |
| 115 | return new UnsafeQualifiedCharacterFieldAccessorImpl(field, isReadOnly); |
| 116 | } else if (type == Integer.TYPE) { |
| 117 | return new UnsafeQualifiedIntegerFieldAccessorImpl(field, isReadOnly); |
| 118 | } else if (type == Long.TYPE) { |
| 119 | return new UnsafeQualifiedLongFieldAccessorImpl(field, isReadOnly); |
| 120 | } else if (type == Float.TYPE) { |
| 121 | return new UnsafeQualifiedFloatFieldAccessorImpl(field, isReadOnly); |
| 122 | } else if (type == Double.TYPE) { |
| 123 | return new UnsafeQualifiedDoubleFieldAccessorImpl(field, isReadOnly); |
| 124 | } else { |
| 125 | return new UnsafeQualifiedObjectFieldAccessorImpl(field, isReadOnly); |
| 126 | } |
| 127 | } |
| 128 | } |
| 129 | } |
| 130 | } |