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package com.tvd12.test.reflect;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

public class MethodBuilder {

    // method name
    private String methodName;
    
    // declaring class of method
    private Class clazz;
    
    // list of arguments
    private List> arguments;
    
    public MethodBuilder() {
        arguments = new ArrayList<>();
    }
    
    // factory method
    public static MethodBuilder create() {
        return new MethodBuilder();
    }
    
    /**
     * Set method name
     * 
     * @param name method name
     * @return this pointer
     */
    public MethodBuilder method(String name) {
        this.methodName = name;
        return this;
    }
    
    /**
     * Set declaring class of method
     * 
     * @param clazz class
     * @return this pointer
     */
    public MethodBuilder clazz(Class clazz) {
        this.clazz = clazz;
        return this;
    }
    
    /**
     * Add argument
     * 
     * @param argument argument
     * @return this pointer
     */
    public MethodBuilder argument(Class argument) {
        this.arguments.add(argument);
        return this;
    }
    
    /**
     * Build a method
     * 
     * @return a method
     */
    public Method build() {
        return ReflectMethodUtil.getMethod(
                methodName, 
                clazz, 
                arguments.toArray(new Class[arguments.size()]));
    }
    
}