com.github.blackshadowwalker.spring.distributelock.interceptor.ParameterLockKeyGenerator Maven / Gradle / Ivy

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package com.github.blackshadowwalker.spring.distributelock.interceptor;

import com.github.blackshadowwalker.spring.distributelock.LockKeyGenerator;
import com.github.blackshadowwalker.spring.distributelock.LockKeyGenerator;

import java.lang.reflect.Method;

/**
 * Created by ASUS on 2016/8/16.
 */
public class ParameterLockKeyGenerator implements LockKeyGenerator {

	@Override
	public Object generate(Object target, Method method, Object... params) {
		return generateKey(params);
	}

	/**
	 * Generate a key based on the specified parameters.
	 */
	public static Object generateKey(Object... params) {
		if (params == null || params.length == 0) {
			return "";
		}
		StringBuilder buffer = new StringBuilder();
		for (Object param : params) {
			if (buffer.length() > 0) {
				buffer.append("_");
			}
			buffer.append(String.valueOf(param));
		}
		return buffer.toString();
	}

}