/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.druid.support.spring.stat;
import java.lang.reflect.Method;
public class SpringMethodInfo {
private String signature;
private Class<?> instanceClass;
private Method method;
public SpringMethodInfo(Class<?> instanceClass, Method method){
this.instanceClass = instanceClass;
this.method = method;
}
public String getClassName() {
return instanceClass.getName();
}
public String getMethodName() {
return method.getName();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + instanceClass.getName().hashCode();
result = prime * result + method.getName().hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !(obj instanceof SpringMethodInfo)) {
return false;
}
SpringMethodInfo other = (SpringMethodInfo) obj;
if (!instanceClass.getName().equals(other.instanceClass.getName())) {
return false;
}
if (!method.getName().equals(other.method.getName())) {
return false;
}
if (method.getParameterTypes().length != other.method.getParameterTypes().length) {
return false;
}
for (int i = 0; i < method.getParameterTypes().length; ++i) {
if (!method.getParameterTypes()[i].getName().equals(other.method.getParameterTypes()[i].getName())) {
return false;
}
}
return true;
}
public static String getMethodSignature(Method method) {
StringBuilder sb = new StringBuilder();
sb.append(method.getName());
sb.append('(');
Class<?>[] params = method.getParameterTypes();
for (int j = 0; j < params.length; j++) {
sb.append(params[j].getName());
if (j < (params.length - 1)) {
sb.append(',');
}
}
sb.append(')');
return sb.toString();
}
public String getSignature() {
if (signature == null) {
signature = getMethodSignature(method);
}
return signature;
}
}