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package com.feingto.cloud.config.redis.support;

import com.feingto.cloud.config.annotation.ApplicationContextHold;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.core.env.Environment;

import java.lang.reflect.Method;
import java.util.Optional;

/**
 * 缓存工具类
 *
 * @author longfei
 */
public class CacheUtils {
    /**
     * Generate a name for the given method and its parameters.
     *
     * @param target the target instance
     * @return a generated name
     */
    public static String generateName(Object target) {
        return Optional.ofNullable(ApplicationContextHold.getBean(Environment.class))
                .map(env -> Binder.get(env).bind("spring.application.name", String.class)
                        .orElse(null))
                .orElse("application")
                .concat(":")
                .concat(target.getClass().getName());
    }

    /**
     * Generate a key for the given method and its parameters.
     *
     * @param method the method being called
     * @param params the method parameters (with any var-args expanded)
     * @return a generated key
     */
    public static String generateKey(Method method, Object... params) {
        StringBuilder sb = new StringBuilder();
        sb.append(method.getName());
        for (Object obj : params) {
            sb.append(":").append(obj.toString());
        }
        return sb.toString();
    }
}