com.github.restup.service.MethodArgumentsBuilder Maven / Gradle / Ivy
package com.github.restup.service;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
/**
* Builds a unique set of arguments for a set of {@link Method}s
*
* @author abuttaro
*/
public class MethodArgumentsBuilder {
private final List> types;
public MethodArgumentsBuilder() {
types = new ArrayList>();
}
public void addArgument(Method method) {
if (method != null) {
addArguments(method.getParameterTypes());
addArgument(method.getReturnType());
}
}
public void addArguments(List methods) {
if (methods != null) {
for (Method m : methods) {
addArgument(m);
}
}
}
public void addArguments(Method... methods) {
if (methods != null) {
for (Method m : methods) {
addArgument(m);
}
}
}
public void addArguments(Class... classes) {
for (Class c : classes) {
addArgument(c);
}
}
public void addArgument(Class type) {
int i = 0;
if (type == Void.TYPE || type == Object.class) {
return;
}
for (Class c : types) {
if (c == type) {
return;
}
if (!c.isInterface()) {
if (c.isAssignableFrom(type)) {
return;
}
}
if (type.isAssignableFrom(c)) {
types.set(i, type);
return;
}
i++;
}
types.add(type);
}
public Class[] build() {
Class[] result = types.toArray(new Class[types.size()]);
types.clear();
return result;
}
}