com.alibaba.nacos.consistency.Config Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.nacos.consistency;
import java.io.Serializable;
import java.util.Set;
/**
* Consistent protocol related configuration objects.
*
* {@link RequestProcessor} : The consistency protocol provides services for all businesses, but each business only cares
* about the transaction information belonging to that business, and the transaction processing between the various
* services should not block each other. Therefore, the LogProcessor is abstracted to implement the parallel processing
* of transactions of different services. Corresponding LogProcessor sub-interface: LogProcessor4AP or LogProcessor4CP,
* different consistency protocols will actively discover the corresponding LogProcessor
*
* @author liaochuntao
*/
public interface Config extends Serializable {
/**
* Set the cluster node information to initialize，like [ip:port, ip:port, ip:port].
*
* @param self local node address information, ip:port
* @param members {@link Set}
*/
void setMembers(String self, Set members);
/**
* members join.
*
* @param members {@link Set}
*/
void addMembers(Set members);
/**
* members leave.
*
* @param members {@link Set}
*/
void removeMembers(Set members);
/**
* get local node address info.
*
* @return address
*/
String getSelfMember();
/**
* get the cluster node information.
*
* @return members info, like [ip:port, ip:port, ip:port]
*/
Set getMembers();
/**
* Add configuration content.
*
* @param key config key
* @param value config value
*/
void setVal(String key, String value);
/**
* get configuration content by key.
*
* @param key config key
* @return config value
*/
String getVal(String key);
/**
* get configuration content by key, if not found, use default-val.
*
* @param key config key
* @param defaultVal default value
* @return config value
*/
String getValOfDefault(String key, String defaultVal);
}