Java Reflection Method Signature getMethodSignature(Method method)

Description

get Method Signature

License

Apache License

Declaration

private static String getMethodSignature(Method method) 

Method Source Code

//package com.java2s;
/**/* w w  w . j  a  va  2  s.co m*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import java.lang.reflect.Method;

public class Main {

    private static String getMethodSignature(Method method) {
        String methodName = method.getName();
        Class<?>[] classes = method.getParameterTypes();

        StringBuilder builder = new StringBuilder();
        builder.append("[ ");
        builder.append(methodName);
        builder.append("(");
        for (int i = 0; i < classes.length; i++) {
            Class<?> aClass = classes[i];
            builder.append(aClass.getName());
            if (i != (classes.length - 1)) {
                builder.append(", ");
            }
        }
        builder.append(")");
        builder.append(" ]");
        return builder.toString();
    }

    private static String getMethodSignature(Method method, Object[] args) {
        String methodName = method.getName();
        Class<?>[] classes = method.getParameterTypes();

        StringBuilder builder = new StringBuilder();
        builder.append("[ ");
        builder.append(methodName);
        builder.append("(");
        builder.append(getMethodParameter(classes, args));
        builder.append(")");
        builder.append(" ]");
        return builder.toString();
    }

    private static String getMethodParameter(Class<?>[] classes, Object[] args) {
        if (args == null) {
            return "";
        }
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < classes.length; i++) {
            Class<?> aClass = classes[i];
            builder.append(aClass.getName());
            builder.append("(");
            builder.append(args[i]);
            builder.append(")");
            if (i != (classes.length - 1)) {
                builder.append(", ");
            }
        }
        return builder.toString();
    }

    private static String getMethodParameter(Object[] args) {
        if (args == null) {
            return "";
        }
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < args.length; i++) {
            Class<?> aClass = args[i].getClass();
            builder.append(aClass.getName());
            builder.append("(");
            builder.append(args[i]);
            builder.append(")");
            if (i != (args.length - 1)) {
                builder.append(", ");
            }
        }
        return builder.toString();
    }
}

Related

1. getMethod(Signature signature)
2. getMethodByFunctionSignature(Class clazz, String signature)
3. getMethodFromSignature(Class clazz, String methodSig)
4. getMethodSignature(Class[] paramTypes, Class retType)
5. getMethodSignature(Method m)
6. getMethodSignature(Method method)
7. getMethodSignature(Method method)
8. getMethodSignature(Method method)
9. getMethodSignature(Method method)