io.github.panxiaochao.redis.mapper.KeyPrefixNameMapper Maven / Gradle / Ivy
/*
* Copyright © 2022-2023 Lypxc ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.github.panxiaochao.redis.mapper;
import io.github.panxiaochao.core.utils.StringPools;
import org.redisson.api.NameMapper;
import org.springframework.util.StringUtils;
/**
*
* Redis 缓存 key 自定义前缀
*
*
* @author Lypxc
* @since 2023-06-27
*/
public class KeyPrefixNameMapper implements NameMapper {
private final String keyPrefix;
/**
* 前缀 默认为空字符串
*/
public KeyPrefixNameMapper() {
this.keyPrefix = StringPools.EMPTY;
}
/**
* 前缀 判断
* @param keyPrefix 前缀字符串
*/
public KeyPrefixNameMapper(String keyPrefix) {
this.keyPrefix = StringUtils.hasText(keyPrefix) ? keyPrefix + StringPools.COLON : StringPools.EMPTY;
}
/**
* Applies map function to input name
* @param name - original Redisson object name
* @return mapped name
*/
@Override
public String map(String name) {
if (!StringUtils.hasText(name)) {
return null;
}
if (StringUtils.hasText(keyPrefix) && !name.startsWith(keyPrefix)) {
return keyPrefix + name;
}
return name;
}
/**
* Applies unmap function to input mapped name to get original name.
* @param name - mapped name
* @return original Redisson object name
*/
@Override
public String unmap(String name) {
if (!StringUtils.hasText(name)) {
return null;
}
if (StringUtils.hasText(keyPrefix) && name.startsWith(keyPrefix)) {
return name.substring(keyPrefix.length());
}
return name;
}
}