/* * Copyright (c) 2001, 2024, 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 jdk.internal.reflect; import java.lang.reflect.Field; import java.lang.reflect.Modifier; abstract class FieldAccessorImpl implements FieldAccessor { protected final Field field; FieldAccessorImpl(Field field) { this.field = field; } /** Matches specification in {@link java.lang.reflect.Field} */ public abstract Object get(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract boolean getBoolean(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract byte getByte(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract char getChar(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract short getShort(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract int getInt(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract long getLong(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract float getFloat(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract double getDouble(Object obj) throws IllegalArgumentException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void set(Object obj, Object value) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setBoolean(Object obj, boolean z) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setByte(Object obj, byte b) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setChar(Object obj, char c) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setShort(Object obj, short s) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setInt(Object obj, int i) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setLong(Object obj, long l) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setFloat(Object obj, float f) throws IllegalArgumentException, IllegalAccessException; /** Matches specification in {@link java.lang.reflect.Field} */ public abstract void setDouble(Object obj, double d) throws IllegalArgumentException, IllegalAccessException; protected void ensureObj(Object o) { // NOTE: will throw NullPointerException, as specified, if o is null if (!field.getDeclaringClass().isAssignableFrom(o.getClass())) { throwSetIllegalArgumentException(o); } } protected String getQualifiedFieldName() { return field.getDeclaringClass().getName() + "." +field.getName(); } protected IllegalArgumentException newGetIllegalArgumentException(String type) { return new IllegalArgumentException( "Attempt to get "+field.getType().getName()+" field \"" + getQualifiedFieldName() + "\" with illegal data type conversion to "+type ); } protected void throwFinalFieldIllegalAccessException(String attemptedType, String attemptedValue) throws IllegalAccessException { throw new IllegalAccessException(getSetMessage(attemptedType, attemptedValue)); } protected void throwFinalFieldIllegalAccessException(Object o) throws IllegalAccessException { throwFinalFieldIllegalAccessException(o != null ? o.getClass().getName() : "", ""); } protected void throwFinalFieldIllegalAccessException(boolean z) throws IllegalAccessException { throwFinalFieldIllegalAccessException("boolean", Boolean.toString(z)); } protected void throwFinalFieldIllegalAccessException(char b) throws IllegalAccessException { throwFinalFieldIllegalAccessException("char", Character.toString(b)); } protected void throwFinalFieldIllegalAccessException(byte b) throws IllegalAccessException { throwFinalFieldIllegalAccessException("byte", Byte.toString(b)); } protected void throwFinalFieldIllegalAccessException(short b) throws IllegalAccessException { throwFinalFieldIllegalAccessException("short", Short.toString(b)); } protected void throwFinalFieldIllegalAccessException(int i) throws IllegalAccessException { throwFinalFieldIllegalAccessException("int", Integer.toString(i)); } protected void throwFinalFieldIllegalAccessException(long i) throws IllegalAccessException { throwFinalFieldIllegalAccessException("long", Long.toString(i)); } protected void throwFinalFieldIllegalAccessException(float f) throws IllegalAccessException { throwFinalFieldIllegalAccessException("float", Float.toString(f)); } protected void throwFinalFieldIllegalAccessException(double f) throws IllegalAccessException { throwFinalFieldIllegalAccessException("double", Double.toString(f)); } protected IllegalArgumentException newGetBooleanIllegalArgumentException() { return newGetIllegalArgumentException("boolean"); } protected IllegalArgumentException newGetByteIllegalArgumentException() { return newGetIllegalArgumentException("byte"); } protected IllegalArgumentException newGetCharIllegalArgumentException() { return newGetIllegalArgumentException("char"); } protected IllegalArgumentException newGetShortIllegalArgumentException() { return newGetIllegalArgumentException("short"); } protected IllegalArgumentException newGetIntIllegalArgumentException() { return newGetIllegalArgumentException("int"); } protected IllegalArgumentException newGetLongIllegalArgumentException() { return newGetIllegalArgumentException("long"); } protected IllegalArgumentException newGetFloatIllegalArgumentException() { return newGetIllegalArgumentException("float"); } protected IllegalArgumentException newGetDoubleIllegalArgumentException() { return newGetIllegalArgumentException("double"); } protected String getSetMessage(String attemptedType, String attemptedValue) { String err = "Can not set"; if (Modifier.isStatic(field.getModifiers())) err += " static"; if (Modifier.isFinal(field.getModifiers())) err += " final"; err += " " + field.getType().getName() + " field " + getQualifiedFieldName() + " to "; if (!attemptedValue.isEmpty()) { err += "(" + attemptedType + ")" + attemptedValue; } else { if (!attemptedType.isEmpty()) err += attemptedType; else err += "null value"; } return err; } protected void throwSetIllegalArgumentException(String attemptedType, String attemptedValue) { throw new IllegalArgumentException(getSetMessage(attemptedType,attemptedValue)); } protected void throwSetIllegalArgumentException(Object o) { throwSetIllegalArgumentException(o != null ? o.getClass().getName() : "", ""); } protected void throwSetIllegalArgumentException(boolean b) { throwSetIllegalArgumentException("boolean", Boolean.toString(b)); } protected void throwSetIllegalArgumentException(byte b) { throwSetIllegalArgumentException("byte", Byte.toString(b)); } protected void throwSetIllegalArgumentException(char c) { throwSetIllegalArgumentException("char", Character.toString(c)); } protected void throwSetIllegalArgumentException(short s) { throwSetIllegalArgumentException("short", Short.toString(s)); } protected void throwSetIllegalArgumentException(int i) { throwSetIllegalArgumentException("int", Integer.toString(i)); } protected void throwSetIllegalArgumentException(long l) { throwSetIllegalArgumentException("long", Long.toString(l)); } protected void throwSetIllegalArgumentException(float f) { throwSetIllegalArgumentException("float", Float.toString(f)); } protected void throwSetIllegalArgumentException(double d) { throwSetIllegalArgumentException("double", Double.toString(d)); } }