net.bytebuddy.utility.privilege.GetMethodAction Maven / Gradle / Ivy
/*
* Copyright 2014 - Present Rafael Winterhalter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.bytebuddy.utility.privilege;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import net.bytebuddy.build.HashCodeAndEqualsPlugin;
import net.bytebuddy.utility.nullability.MaybeNull;
import java.lang.reflect.Method;
import java.security.PrivilegedAction;
/**
* Resolves a public method for a given type or returns {@code null} if the type or method are not available or
* if a resolution is not possible.
*/
@HashCodeAndEqualsPlugin.Enhance
public class GetMethodAction implements PrivilegedAction {
/**
* The name of the type.
*/
private final String type;
/**
* The name of the method.
*/
private final String name;
/**
* The parameter types of the method.
*/
private final Class[] parameter;
/**
* Creates a new privileged action for resolving a {@link Method}.
*
* @param type The name of the type.
* @param name The name of the method.
* @param parameter The parameter types of the method.
*/
public GetMethodAction(String type, String name, Class... parameter) {
this.type = type;
this.name = name;
this.parameter = parameter;
}
/**
* {@inheritDoc}
*/
@MaybeNull
@SuppressFBWarnings(value = "REC_CATCH_EXCEPTION", justification = "Exception should not be rethrown but trigger a fallback.")
public Method run() {
try {
return Class.forName(type).getMethod(name, parameter);
} catch (Exception ignored) {
return null;
}
}
}