com.github.tcurrie.rest.factory.proxy.Methods Maven / Gradle / Ivy

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Simple rest client-server factory, you give it a url, it does the rest!

There is a newer version: 0.2.70

package com.github.tcurrie.rest.factory.proxy;

import com.github.tcurrie.rest.factory.Strings;
import com.github.tcurrie.rest.factory.v1.RestFactoryException;

import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.function.Function;
import java.util.stream.Stream;

public interface Methods {
    Method EQUALS = TypeFactory.get(Object.class, "equals", Object.class);
    Method HASH_CODE = TypeFactory.get(Object.class, "hashCode");

    interface BeanFactory {
        static Stream stream(final Object bean) {
            return Arrays.stream(bean.getClass().getInterfaces()).flatMap(TypeFactory::stream);
        }

        static  Stream map(final Object bean, Function, Function> function) {
            return stream(bean).map(m -> function.apply(m.getDeclaringClass()).apply(m));
        }
    }

    interface TypeFactory {
        static Stream stream(final Class type) {
            return Arrays.stream(type.getMethods());
        }

        static Method get(Class type, String methodName, Class... args) {
            try {
                return type.getMethod(methodName, args);
            } catch (NoSuchMethodException e) {
                throw new RestFactoryException(Strings.format("Unable to find class[{}], method[{}], args[{}].", type, methodName, args));
            }
        }
    }
}