infra.beans.factory.support.ReplaceOverride Maven / Gradle / Ivy
/*
* Copyright 2017 - 2024 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [https://www.gnu.org/licenses/]
*/
package infra.beans.factory.support;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Objects;
import infra.lang.Assert;
import infra.lang.Nullable;
import infra.util.ObjectUtils;
/**
* Extension of {@link MethodOverride} that represents an arbitrary
* override of a method by the IoC container.
*
* Any non-final method can be overridden, irrespective of its
* parameters and return types.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @author Harry Yang
* @since 4.0 2022/3/7 12:44
*/
public class ReplaceOverride extends MethodOverride {
private final String methodReplacerBeanName;
private final ArrayList typeIdentifiers = new ArrayList<>();
/**
* Construct a new ReplaceOverride.
*
* @param methodName the name of the method to override
* @param methodReplacerBeanName the bean name of the {@link MethodReplacer}
*/
public ReplaceOverride(String methodName, String methodReplacerBeanName) {
super(methodName);
Assert.notNull(methodReplacerBeanName, "Method replacer bean name is required");
this.methodReplacerBeanName = methodReplacerBeanName;
}
/**
* Return the name of the bean implementing MethodReplacer.
*/
public String getMethodReplacerBeanName() {
return this.methodReplacerBeanName;
}
/**
* Add a fragment of a class string, like "Exception"
* or "java.lang.Exc", to identify a parameter type.
*
* @param identifier a substring of the fully qualified class name
*/
public void addTypeIdentifier(String identifier) {
this.typeIdentifiers.add(identifier);
}
@Override
public boolean matches(Method method) {
if (!method.getName().equals(getMethodName())) {
return false;
}
if (!isOverloaded()) {
// Not overloaded: don't worry about arg type matching...
return true;
}
// If we get here, we need to insist on precise argument matching...
int size = typeIdentifiers.size();
if (size != method.getParameterCount()) {
return false;
}
ArrayList typeIdentifiers = this.typeIdentifiers;
Class[] parameterTypes = method.getParameterTypes();
for (int i = 0; i < size; i++) {
String identifier = typeIdentifiers.get(i);
if (!parameterTypes[i].getName().contains(identifier)) {
return false;
}
}
return true;
}
@Override
public boolean equals(@Nullable Object other) {
if (!(other instanceof ReplaceOverride that) || !super.equals(other)) {
return false;
}
return Objects.equals(methodReplacerBeanName, that.methodReplacerBeanName)
&& Objects.equals(typeIdentifiers, that.typeIdentifiers);
}
@Override
public int hashCode() {
int hashCode = super.hashCode();
hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.methodReplacerBeanName);
hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.typeIdentifiers);
return hashCode;
}
@Override
public String toString() {
return "Replace override for method '" + getMethodName() + "'";
}
}