Skip to content

O
OpenXG-WIC-Cnf
Commit 6504913a authored by 谢建斌's avatar 谢建斌
Browse files
Options

raft单机多节点

parent 16b2a979
Expand all Show whitespace changes
Inline Side-by-side
Showing with 5244 additions and 1 deletion
apps/cnf-space-iot/pom.xml 0 → 100644
View file @ 6504913a
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>cnf</artifactId>
<groupId>top.ninwoo</groupId>
<version>1.0-SNAPSHOT</version>
<relativePath>../../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>top.jbxie</groupId>
<artifactId>cnf-space-iot</artifactId>
<packaging>pom</packaging>
<modules>
<module>space-iot-mqtt</module>
<module>space-iot-flooding</module>
<module>space-iot-raft</module>
</modules>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
<version>${lombok.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>${springboot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${springboot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>${springboot.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>${springboot.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${springboot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
apps/cnf-space-iot/space-iot-flooding/pom.xml 0 → 100644
View file @ 6504913a
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>cnf-space-iot</artifactId>
<groupId>top.ninwoo</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>space-iot-flooding</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>top.ninwoo</groupId>
<artifactId>cnf-client-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${springboot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
apps/cnf-space-iot/space-iot-flooding/src/main/java/com/jbxie/spaceiotflooding/FloodingMain.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotflooding;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class FloodingMain {
public static void main(String[] args) {
}
}
apps/cnf-space-iot/space-iot-flooding/src/main/java/com/jbxie/spaceiotflooding/entity/DataPackage.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotflooding.entity;
import lombok.Data;
import java.util.ArrayList;
@Data
public class DataPackage {
public int[][] nodeLink = {{0,1,1,0,0,1,0,0,0,0},
{1,0,1,0,0,0,0,0,0,1},
{1,1,0,0,0,0,0,0,0,0},
{0,0,0,0,0,1,0,0,0,0},
{0,0,0,0,0,1,0,0,0,0},
{1,0,0,1,1,0,0,1,0,0},
{0,0,0,0,0,0,0,1,0,0},
{0,0,0,0,0,1,1,0,1,1},
{0,0,0,0,0,0,0,1,0,0},
{0,1,0,0,0,0,0,1,0,0}};
// 计数器
private int counter;
// 传输路径
private ArrayList<String> route;
public DataPackage(int counter) {
this.counter = counter;
}
public void decrement() {
this.counter = this.counter - 1;
}
@SuppressWarnings("unchecked")
@Override
public DataPackage clone() {
DataPackage result = null;
try {
result = (DataPackage) super.clone();
result.route = (ArrayList<String>) this.route.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return result;
}
@Override
public String toString() {
return String.format("报文的传输路径为: %s", route);
}
//业务标识
private String businessName;
//订阅端ip
private String subIp;
//订阅主题
private String topic;
//消息qos
private String qos;
//发布端ip
private String pubIp;
}
apps/cnf-space-iot/space-iot-flooding/src/main/java/com/jbxie/spaceiotflooding/entity/Node.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotflooding.entity;
import lombok.Data;
import java.util.List;
@Data
public class Node {
// 结点名称
private String name;
// 当前节点已处理的业务列表
private List<String> businessList;
public Node(String name) {
this.name = name;
}
}
\ No newline at end of file
apps/cnf-space-iot/space-iot-flooding/src/main/java/com/jbxie/spaceiotflooding/service/IPService.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotflooding.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import top.ninwoo.bishe.starter.service.NetworkService;
import java.util.List;
@Service
public class IPService {
@Autowired
private NetworkService networkService;
public String getIpByAppName(String appName) {
List<String> ipList = networkService.getIpListByAppName(11111l, appName);
if (!ipList.isEmpty()) {
String ip_tmp = ipList.get(0);
String[] split_list = ip_tmp.split("/");
return split_list[0];
}
return null;
}
}
apps/cnf-space-iot/space-iot-flooding/src/main/java/com/jbxie/spaceiotflooding/service/NodeService.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotflooding.service;
import com.jbxie.spaceiotflooding.entity.DataPackage;
import com.jbxie.spaceiotflooding.entity.Node;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import top.ninwoo.common.entity.DockerContainer;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
public class NodeService {
private static final Logger logger = LoggerFactory.getLogger(NodeService.class);
@Autowired
DockerContainer dockerContainer;
@Autowired
IPService ipService;
/**
* 获取当前节点名
* (需要重写)
*/
public String getName() {
return dockerContainer.getName();
}
/**
* 当前节点接收到数据包进行处理
* 先写一个单向的
* @param dataPackage
*/
private void accept(DataPackage dataPackage) {
String currentName = getName();
int currentHop = getCurrentHop(currentName);
Node node = new Node(currentName);
ServerSocket serverSocket = null;
InputStream inputStream = null;
ObjectInputStream objectInputStream = null;
try {
serverSocket = new ServerSocket(2021);
while (true) {
Socket client = serverSocket.accept();
inputStream = client.getInputStream();
objectInputStream = new ObjectInputStream(new BufferedInputStream(inputStream));
Object object = objectInputStream.readObject();
DataPackage dataPackage1 = (DataPackage) object;
List<String> businessList = node.getBusinessList();
String businessName = dataPackage.getBusinessName();
ArrayList<String> route = dataPackage.getRoute();
route.add("sate" + currentHop);
// 如果计数器仍然等于零或当前节点已经是最终节点，则打印路由信息
// 如果节点业务列表已包含当前传输的业务则终止
// 否则继续传输
if (dataPackage.getCounter() == 0) {
logger.info("传输失败，已超出生命周期:" + dataPackage);
continue;
} else if (dataPackage.getPubIp() == ipService.getIpByAppName(currentName)) {
logger.info("传输成功: " + dataPackage);
continue;
} else if (businessList.contains(businessName)){
logger.info("该节点已处理，该链路传输终止");
continue;
} else {
dataPackage.decrement();
businessList.add(businessName);
node.setBusinessList(businessList);
List<Integer> relativeNodesList = getLink(currentName, dataPackage);
for (int nextNode : relativeNodesList) {
transferPackage(dataPackage, nextNode);
}
continue;
}
}
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
if (objectInputStream != null) {
objectInputStream.close();
}
if (inputStream != null) {
inputStream.close();
}
if (serverSocket != null) {
serverSocket.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 根据节点名和拓扑获取当前节点连接关系
* @param name
* @param dataPackage
* @return
*/
private List<Integer> getLink(String name, DataPackage dataPackage) {
List<Integer> relativeNodesList = new ArrayList<>();
int[][] nodeLink = dataPackage.getNodeLink();
int currentHop = getCurrentHop(name);
for (int i = 0; i < nodeLink[currentHop - 1].length; i++) {
if (i == 1) {
relativeNodesList.add(i + 1);
}
}
return relativeNodesList;
}
/**
* 获取当前节点序列号
* @param name
* @return
*/
private int getCurrentHop (String name) {
if(name == null || name.length() == 0) {
throw new RuntimeException("节点名序号错误");
}
return Integer.valueOf(name.substring(4, name.length()));
}
/**
* 发送数据包
* @param dataPackage
* @param nextHop
*/
private void transferPackage(DataPackage dataPackage, int nextHop) {
//获取目标节点ip
String node_name = "node" + nextHop;
String IP = ipService.getIpByAppName(node_name);
//发送至下一节点
send(dataPackage, IP, 2021);
}
private void send(DataPackage dataPackage, String ip, int port) {
Socket socket = null;
try {
socket = new Socket(ip, port);
ObjectOutputStream objectOutputStream = new ObjectOutputStream(socket.getOutputStream());
objectOutputStream.writeObject(dataPackage);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (socket != null) {
socket.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
apps/cnf-space-iot/space-iot-mqtt/pom.xml 0 → 100644
View file @ 6504913a
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>cnf-space-iot</artifactId>
<groupId>top.ninwoo</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>space-iot-mqtt</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>top.ninwoo</groupId>
<artifactId>cnf-client-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-stream</artifactId>
<version>5.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-mqtt</artifactId>
<version>5.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.41</version>
</dependency>
<dependency>
<groupId>org.eclipse.paho</groupId>
<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${springboot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/IotMqttMain.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt;
import com.jbxie.spaceiotmqtt.mqttUtils.MyMqttClient;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class IotMqttMain {
public static void main(String[] args) {
String broker = "tcp://192.168.31.198:1883";
// MyMqttClient mqttClient_sub = new MyMqttClient();
// MyMqttClient mqttClient_pub = new MyMqttClient();
//
// mqttClient_sub.createClient(broker);
// mqttClient_pub.createClient(broker);
//
// mqttClient_pub.pubMessage("world/test1", "hello:test_1", 1);
// mqttClient_sub.subTopic("world/test1");
MyMqttClient mqttClient = new MyMqttClient();
mqttClient.createClient(broker);
mqttClient.subTopic("world/test1", 1);
mqttClient.pubMessage(1, "world/test1", "hello:test_1");
SpringApplication.run(IotMqttMain.class, args);
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/common/DataPackage.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.common;
import lombok.Data;
import java.util.ArrayList;
@Data
public class DataPackage {
public int[][] nodeLink = {{0,1,1,0,0,1,0,0,0,0},
{1,0,1,0,0,0,0,0,0,1},
{1,1,0,0,0,0,0,0,0,0},
{0,0,0,0,0,1,0,0,0,0},
{0,0,0,0,0,1,0,0,0,0},
{1,0,0,1,1,0,0,1,0,0},
{0,0,0,0,0,0,0,1,0,0},
{0,0,0,0,0,1,1,0,1,1},
{0,0,0,0,0,0,0,1,0,0},
{0,1,0,0,0,0,0,1,0,0}};
// 计数器
private int counter;
// 传输路径
private ArrayList<String> route;
public DataPackage(int counter) {
this.counter = counter;
}
public void decrement() {
this.counter = this.counter - 1;
}
@SuppressWarnings("unchecked")
@Override
public DataPackage clone() {
DataPackage result = null;
try {
result = (DataPackage) super.clone();
result.route = (ArrayList<String>) this.route.clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return result;
}
@Override
public String toString() {
return String.format("报文的传输路径为: %s", route);
}
//业务标识
private String businessName;
//订阅端ip
private String subIp;
//订阅主题
private String topic;
//消息qos
private String qos;
//发布端ip
private String pubIp;
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/common/Node.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.common;
import lombok.Data;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
@Data
public class Node {
// 结点名称
private String name;
// 当前节点已处理的业务列表
private List<String> businessList;
public Node(String name) {
this.name = name;
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/controller/MqttController.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.controller;
import com.jbxie.spaceiotmqtt.mqttUtils.MyMqttClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Random;
@RestController
@RequestMapping("/")
public class MqttController {
@Autowired
MyMqttClient myMqttClient;
@GetMapping(value = "/publishTopic")
public String publishTopic() {
String topicString = "test";
myMqttClient.pubMessage(0, false, topicString, "测试一下发布消息");
return "ok";
}
// 发送自定义消息内容（使用默认主题）
@RequestMapping("/publishTopic/{data}")
public String test1(@PathVariable("data") String data) {
String topicString = "test";
myMqttClient.pubMessage(0,false,topicString, data);
return "ok";
}
// 发送自定义消息内容，且指定主题
@RequestMapping("/publishTopic/{topic}/{data}")
public String test2(@PathVariable("topic") String topic, @PathVariable("data") String data) {
myMqttClient.pubMessage(0,false,topic, data);
return "ok";
}
@RequestMapping("/mqttsub")
public String mqttsub() {
String TOPIC1="test_topic1";
String TOPIC2="test_topic2";
String TOPIC3="test_topic3";
String TOPIC4="test_topic4";
int Qos1=1;
int Qos2=1;
int Qos3=1;
int Qos4=1;
String[] topics={TOPIC1,TOPIC2,TOPIC3,TOPIC4};
int[] qos={Qos1,Qos2,Qos3,Qos4};
myMqttClient.subTopic(topics,qos);
return "订阅主题";
}
@RequestMapping("/mqttest")
public String mqtest(){
String TOPIC1="test_topic1";
String TOPIC2="test_topic2";
String TOPIC3="test_topic3";
String TOPIC4="test_topic4";
String[] topics={TOPIC1,TOPIC2,TOPIC3,TOPIC4};
myMqttClient.pubMessage(topics[new Random().nextInt(5)], "测试消息发送");
return "发送成功吗！！！！！！！！";
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/mqttUtils/MqttClientCallback.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.mqttUtils;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttCallback;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 发布消息的回调类
*
* 必须实现MqttCallback的接口并实现对应的相关接口方法CallBack 类将实现 MqttCallBack。
* 每个客户机标识都需要一个回调实例。在此示例中，构造函数传递客户机标识以另存为实例数据。
* 在回调中，将它用来标识已经启动了该回调的哪个实例。
* 必须在回调类中实现三个方法：
*
* public void messageArrived(MqttTopic topic, MqttMessage message)接收已经预订的发布。
*
* public void connectionLost(Throwable cause)在断开连接时调用。
*
* public void deliveryComplete(MqttDeliveryToken token))
* 接收到已经发布的 QoS 1 或 QoS 2 消息的传递令牌时调用。
* 由 MqttClient.connect 激活此回调。
*
*/
@Slf4j
@Component
public class MqttClientCallback implements MqttCallback {
private static final Logger logger = LoggerFactory.getLogger(MqttClientCallback.class);
@Override
public void connectionLost(Throwable arg0) {
//logger.info("连接断开，可以做重连");
System.out.println("mqtt失去了连接");
MyMqttClient.reConnect();
}
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
//logger.info("deliveryComplete---------" + iMqttDeliveryToken.isComplete());
System.out.println("deliveryComplete---------" + iMqttDeliveryToken.isComplete());
}
@Override
public void messageArrived(String topic, MqttMessage mqttMessage) throws Exception {
// subscribe后得到的消息会执行到这里面
// logger.info("接收消息主题 : " + topic);
// logger.info("接收消息Qos : " + mqttMessage.getQos());
// logger.info("接收消息内容 : " + new String(mqttMessage.getPayload()));
String messages = new String(mqttMessage.getPayload());
if(!messages.equals("close")){
System.out.println("{");
System.out.println("接收消息主题 : " + topic);
System.out.println("接收消息Qos : " + mqttMessage.getQos());
System.out.println("接收消息内容 : " + messages);
System.out.println("}");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
logger.info("接收时间========" + df.format(new Date()) + " " + System.currentTimeMillis());
// try {
// perform(topic,json);
// }catch (Exception e){
// }
}
// if (MyMqttClient.executorService != null) {
// MyMqttClient.executorService.execute(new HandlerThread(topic, content));
// }
}
public void perform(String topicP, JSONObject json) throws MqttException, UnsupportedEncodingException {
//你的业务模块
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/mqttUtils/PublishThread.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.mqttUtils;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.springframework.stereotype.Component;
import static com.jbxie.spaceiotmqtt.mqttUtils.MyMqttClient.*;
@Component
public class PublishThread implements Runnable {
@Override
public void run()
{
String[] obj = null;
System.out.println("mqtt publish thread start");
while (true) {
obj = poll();
if (obj != null) {
String topic = obj[0];
String content = obj[1];
int qos = Integer.valueOf(obj[2]);
System.out.println("mqtt从队列取出topic:" + topic + ",content:" + content + ",qos" + qos);
try {
MyMqttClient.pubMessage(1, true, topic, content);
System.out.println("发送mqtt消息,topic: "+ topic +" ,content: " + content);
} catch (Exception e) {
System.out.println("发消息给设备,topic:" + topic + ",content:" + content);
e.printStackTrace();
}
} else{
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/service/IPService.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import top.ninwoo.bishe.starter.service.NetworkService;
import java.util.List;
@Service
public class IPService {
@Autowired
private NetworkService networkService;
public String getIpByAppName(String appName) {
List<String> ipList = networkService.getIpListByAppName(11111l, appName);
if (!ipList.isEmpty()) {
String ip_tmp = ipList.get(0);
String[] split_list = ip_tmp.split("/");
return split_list[0];
}
return null;
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/java/com/jbxie/spaceiotmqtt/service/NodeService.java 0 → 100644
View file @ 6504913a
package com.jbxie.spaceiotmqtt.service;
import com.jbxie.spaceiotmqtt.common.DataPackage;
import com.jbxie.spaceiotmqtt.common.Node;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import top.ninwoo.bishe.starter.service.NetworkService;
import top.ninwoo.common.entity.DockerContainer;
import javax.xml.crypto.Data;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
public class NodeService {
private static final Logger logger = LoggerFactory.getLogger(NodeService.class);
@Autowired
DockerContainer dockerContainer;
@Autowired
IPService ipService;
/**
* 获取当前节点名
* (需要重写)
*/
public String getName() {
return dockerContainer.getName();
}
/**
* 当前节点接收到数据包进行处理
* 先写一个单向的
* @param dataPackage
*/
private void accept(DataPackage dataPackage) {
String currentName = getName();
int currentHop = getCurrentHop(currentName);
Node node = new Node(currentName);
ServerSocket serverSocket = null;
InputStream inputStream = null;
ObjectInputStream objectInputStream = null;
try {
serverSocket = new ServerSocket(2021);
while (true) {
Socket client = serverSocket.accept();
inputStream = client.getInputStream();
objectInputStream = new ObjectInputStream(new BufferedInputStream(inputStream));
Object object = objectInputStream.readObject();
DataPackage dataPackage1 = (DataPackage) object;
List<String> businessList = node.getBusinessList();
String businessName = dataPackage.getBusinessName();
ArrayList<String> route = dataPackage.getRoute();
route.add("sate" + currentHop);
// 如果计数器仍然等于零或当前节点已经是最终节点，则打印路由信息
// 如果节点业务列表已包含当前传输的业务则终止
// 否则继续传输
if (dataPackage.getCounter() == 0) {
logger.info("传输失败，已超出生命周期:" + dataPackage);
continue;
} else if (dataPackage.getPubIp() == ipService.getIpByAppName(currentName)) {
logger.info("传输成功: " + dataPackage);
continue;
} else if (businessList.contains(businessName)){
logger.info("该节点已处理，该链路传输终止");
continue;
} else {
dataPackage.decrement();
businessList.add(businessName);
node.setBusinessList(businessList);
List<Integer> relativeNodesList = getLink(currentName, dataPackage);
for (int nextNode : relativeNodesList) {
transferPackage(dataPackage, nextNode);
}
continue;
}
}
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
if (objectInputStream != null) {
objectInputStream.close();
}
if (inputStream != null) {
inputStream.close();
}
if (serverSocket != null) {
serverSocket.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 根据节点名和拓扑获取当前节点连接关系
* @param name
* @param dataPackage
* @return
*/
private List<Integer> getLink(String name, DataPackage dataPackage) {
List<Integer> relativeNodesList = new ArrayList<>();
int[][] nodeLink = dataPackage.getNodeLink();
int currentHop = getCurrentHop(name);
for (int i = 0; i < nodeLink[currentHop - 1].length; i++) {
if (i == 1) {
relativeNodesList.add(i + 1);
}
}
return relativeNodesList;
}
/**
* 获取当前节点序列号
* @param name
* @return
*/
private int getCurrentHop (String name) {
if(name == null || name.length() == 0) {
throw new RuntimeException("节点名序号错误");
}
return Integer.valueOf(name.substring(4, name.length()));
}
/**
* 发送数据包
* @param dataPackage
* @param nextHop
*/
private void transferPackage(DataPackage dataPackage, int nextHop) {
//获取目标节点ip
String node_name = "node" + nextHop;
String IP = ipService.getIpByAppName(node_name);
//发送至下一节点
send(dataPackage, IP, 2021);
}
private void send(DataPackage dataPackage, String ip, int port) {
Socket socket = null;
try {
socket = new Socket(ip, port);
ObjectOutputStream objectOutputStream = new ObjectOutputStream(socket.getOutputStream());
objectOutputStream.writeObject(dataPackage);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (socket != null) {
socket.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
apps/cnf-space-iot/space-iot-mqtt/src/main/resources/application.yml 0 → 100644
View file @ 6504913a
#mq配置
#com:
# mqtt:
# host: tcp://192.168.31.198:1883
# clientid: mqtt_client1
# topic: good,test,yes
# username: xjb
# password: 123456
# timeout: 10
# keepalive: 20
\ No newline at end of file
apps/cnf-space-iot/space-iot-raft/pom.xml 0 → 100644
View file @ 6504913a
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>cnf-space-iot</artifactId>
<groupId>top.jbxie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>space-iot-raft</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>top.ninwoo</groupId>
<artifactId>cnf-client-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>30.0-jre</version>
</dependency>
<dependency>
<groupId>org.rocksdb</groupId>
<artifactId>rocksdbjni</artifactId>
<version>6.13.3</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.75</version>
</dependency>
<dependency>
<groupId>com.alipay.sofa</groupId>
<artifactId>hessian</artifactId>
<version>4.0.4</version>
</dependency>
<dependency>
<groupId>com.alipay.sofa</groupId>
<artifactId>bolt</artifactId>
<version>1.6.3</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${springboot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
apps/cnf-space-iot/space-iot-raft/readme.md 0 → 100644
View file @ 6504913a
## Raft-KV-Storage
这是一个 Java 版本的 Raft(CP) KV 分布式存储实现. 可用于 Raft 初学者深入学习 Raft 协议.
相关文章 http://thinkinjava.cn/2019/01/12/2019-01-12-lu-raft-kv/
为了尽可能的保证数据一致性，该实现的"性能"没有基于 AP 的实现好。
目前实现了 Raft 4 大核心功能的其中 2 个功能.
1. leader 选举
2. 日志复制
3. 成员变更(未测试)
4. 快照压缩(未实现)
## Design
完全是参照 RAFT 论文来写的. 没有任何妥协.
![image](https://user-images.githubusercontent.com/24973360/50371851-b13de880-05fd-11e9-958a-5813b3b6d761.png)
## quick start
#### 验证 "leader 选举"
1. 在 idea 中配置 5 个 application 启动项,配置 main 类为 RaftNodeBootStrap 类, 加入 -DserverPort=8775 -DserverPort=8776 -DserverPort=8777 -DserverPort=8778 -DserverPort=8779
系统配置, 表示分布式环境下的 5 个机器节点.
2. 依次启动 5 个 RaftNodeBootStrap 节点, 端口分别是 8775，8776， 8777, 8778, 8779.
3. 观察控制台, 约 6 秒后, 会发生选举事件,此时,会产生一个 leader. 而 leader 会立刻发送心跳维持自己的地位.
4. 如果leader 的端口是 8775, 使用 idea 关闭 8775 端口，模拟节点挂掉, 大约 15 秒后, 会重新开始选举, 并且会在剩余的 4 个节点中,产生一个新的 leader. 并开始发送心跳日志。
#### 验证"日志复制"
##### 正常状态下
1. 在 idea 中配置 5 个 application 启动项,配置 main 类为 RaftNodeBootStrap 类, 加入 -DserverPort=8775 -DserverPort=8776 -DserverPort=8777 -DserverPort=8778 -DserverPort=8779
2. 依次启动 5 个 RaftNodeBootStrap 节点, 端口分别是 8775，8776， 8777, 8778, 8779.
3. 使用客户端写入 kv 数据.
4. 杀掉所有节点, 使用 junit test 读取每个 rocksDB 的值, 验证每个节点的数据是否一致.
##### 非正常状态下
1. 在 idea 中配置 5 个 application 启动项,配置 main 类为 RaftNodeBootStrap 类, 加入 -DserverPort=8775 -DserverPort=8776 -DserverPort=8777 -DserverPort=8778 -DserverPort=8779
2. 依次启动 5 个 RaftNodeBootStrap 节点, 端口分别是 8775，8776， 8777, 8778, 8779.
3. 使用客户端写入 kv 数据.
4. 杀掉 leader （假设是 8775）.
5. 再次写入数据.
6. 重启 8775.
7. 关闭所有节点, 读取 RocksDB 验证数据一致性.
## And
欢迎提交 RP, issue. 加微信一起探讨 Raft。
本人微信：
![image](https://user-images.githubusercontent.com/24973360/50372024-5f975d00-0601-11e9-8247-139e145b1123.png)
## Acknowledgments
感谢 SOFA-Bolt 提供 RPC 网络框架 https://github.com/alipay/sofa-bolt
感谢 rocksDB 提供 KV 存储 https://github.com/facebook/rocksdb
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/RaftNodeBootStrap.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.core.env.Environment;
import top.jbxie.raft.nodeCommon.NodeConfig;
import top.jbxie.raft.util.Node;
import top.jbxie.raft.util.impl.DefaultNode;
import java.util.Arrays;
/**
* -DserverPort=8775
* -DserverPort=8776
* -DserverPort=8777
* -DserverPort=8778
* -DserverPort=8779
*
* 启动类，对自身节点的ip port的包装
*/
@SpringBootApplication
public class RaftNodeBootStrap {
// public static void main(String[] args) {
// SpringApplication.run(RaftNodeBootStrap.class, args);
// }
public static void main(String[] args) throws Throwable {
main0();
}
public static void main0() throws Throwable {
String[] peerAddr = {"localhost:8775","localhost:8776","localhost:8777", "localhost:8778", "localhost:8779"};//集群列表
NodeConfig config = new NodeConfig();
//自身节点地址
config.setSelfAddr(Integer.valueOf(System.getProperty("serverPort")).intValue());
//config.setSelfAddr(8779);
//所有节点地址
config.setPeerAddrs(Arrays.asList(peerAddr));
Node node = DefaultNode.getInstance();
node.setConfig(config);
node.init();
// 为Java应用程序添加退出事件处理
// 通过Runtime.getRuntime().addShutdownHook（Thread hook）方法，事件监听，捕获系统退出消息到来，向Java虚拟机
// 注册一个shutdown钩子事件，这样程序一旦运行到此处，就运行线程hook。
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
try {
node.destroy();
} catch (Throwable throwable) {
throwable.printStackTrace();
}
}));
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/ClientKVAck.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import lombok.Data;
import java.io.Serializable;
/**
* 客户端发起请求的返回值
*/
@Data
public class ClientKVAck implements Serializable {
Object result; // logEntry.getCommand();
public ClientKVAck(Object result) {
this.result = result;
}
private ClientKVAck(Builder builder) {
setResult(builder.result);
}
public static ClientKVAck ok() {
return new ClientKVAck("ok");
}
public static ClientKVAck fail() {
return new ClientKVAck("fail");
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private Object result;
private Builder() {
}
public Builder result(Object val) {
result = val;
return this;
}
public ClientKVAck build() {
return new ClientKVAck(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/ClientKVReq.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import lombok.Data;
import java.io.Serializable;
/**
* 客户端发起的请求
*/
@Data
public class ClientKVReq implements Serializable {
public static int PUT = 0;
public static int GET = 1;
int type;
String key;
String value;
private ClientKVReq(Builder builder) {
setType(builder.type);
setKey(builder.key);
setValue(builder.value);
}
public static Builder newBuilder() {
return new Builder();
}
public enum Type {
PUT(0), GET(1);
int code;
Type(int code) {
this.code = code;
}
public static Type value(int code ) {
for (Type type : values()) {
if (type.code == code) {
return type;
}
}
return null;
}
}
public static final class Builder {
private int type;
private String key;
private String value;
private Builder() {
}
public Builder type(int val) {
type = val;
return this;
}
public Builder key(String val) {
key = val;
return this;
}
public Builder value(String val) {
value = val;
return this;
}
public ClientKVReq build() {
return new ClientKVReq(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/RaftClient.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import com.alipay.remoting.exception.RemotingException;
import com.google.common.collect.Lists;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.current.SleepHelper;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.rpc.RpcClient;
import top.jbxie.raft.rpc.impl.DefaultRpcClient;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
public class RaftClient {
private static final Logger LOGGER = LoggerFactory.getLogger(RaftClient.class);
private final static RpcClient client = new DefaultRpcClient();
static String addr = "localhost:8775";
static List<String> list = Lists.newArrayList("localhost:8775","localhost:8776","localhost:8777", "localhost:8778", "localhost:8779");
public static void main(String[] args) throws RemotingException, InterruptedException {
AtomicLong count = new AtomicLong(5);
for (int i = 3; ; i++) {
try {
int index = (int) (count.incrementAndGet() % list.size());
addr = list.get(index);
ClientKVReq obj = ClientKVReq.newBuilder().key("hello:" + i).value("world:" + i).type(ClientKVReq.PUT).build();
Request<ClientKVReq> r = new Request<>();
r.setObj(obj);
r.setUrl(addr);
r.setCmd(Request.CLIENT_REQ);
Response<String> response;
try {
response = client.send(r);
} catch (Exception e) {
r.setUrl(list.get((int) ((count.incrementAndGet()) % list.size())));
response = client.send(r);
}
LOGGER.info("request content : {}, url : {}, put response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response.getResult());
SleepHelper.sleep(1000);
obj = ClientKVReq.newBuilder().key("hello:" + i).type(ClientKVReq.GET).build();
addr = list.get(index);
r.setUrl(addr);
r.setObj(obj);
Response<LogEntry> response2;
try {
response2 = client.send(r);
} catch (Exception e) {
r.setUrl(list.get((int) ((count.incrementAndGet()) % list.size())));
response2 = client.send(r);
}
LOGGER.info("request content : {}, url : {}, get response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response2.getResult());
} catch (Exception e) {
e.printStackTrace();
i = i - 1;
}
SleepHelper.sleep(5000);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/RaftClient2.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import com.google.common.collect.Lists;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.rpc.RpcClient;
import top.jbxie.raft.rpc.impl.DefaultRpcClient;
import java.util.List;
public class RaftClient2 {
private static final Logger LOGGER = LoggerFactory.getLogger(RaftClient.class);
private final static RpcClient client = new DefaultRpcClient();
static String addr = "localhost:8778";
static List<String> list3 = Lists.newArrayList("localhost:8777", "localhost:8778", "localhost:8779");
static List<String> list2 = Lists.newArrayList( "localhost:8777", "localhost:8779");
static List<String> list1 = Lists.newArrayList( "localhost:8779");
public static void main(String[] args) throws InterruptedException {
for (int i = 3; ; i++) {
try {
Request<ClientKVReq> r = new Request<>();
int size = list2.size();
ClientKVReq obj = ClientKVReq.newBuilder().key("hello:" + i).type(ClientKVReq.GET).build();
int index = (i) % size;
addr = list2.get(index);
r.setUrl(addr);
r.setObj(obj);
r.setCmd(Request.CLIENT_REQ);
Response<LogEntry> response2 = client.send(r);
LOGGER.info("request content : {}, url : {}, get response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response2.getResult());
} catch (Exception e) {
e.printStackTrace();
} finally {
Thread.sleep(1000);
}
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/RaftClient3.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import com.alipay.remoting.exception.RemotingException;
import com.google.common.collect.Lists;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.current.SleepHelper;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.rpc.RpcClient;
import top.jbxie.raft.rpc.impl.DefaultRpcClient;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
public class RaftClient3 {
private static final Logger LOGGER = LoggerFactory.getLogger(RaftClient3.class);
private final static RpcClient client = new DefaultRpcClient();
static String addr = "localhost:8777";
static List<String> list = Lists.newArrayList("localhost:8777", "localhost:8778", "localhost:8779");
public static void main(String[] args) throws RemotingException, InterruptedException {
AtomicLong count = new AtomicLong(3);
int keyNum = 4;
try {
int index = (int) (count.incrementAndGet() % list.size());
index = 1;
addr = list.get(index);
ClientKVReq obj = ClientKVReq.newBuilder().key("hello:" + keyNum).value("world:" + keyNum).type(ClientKVReq.PUT).build();
Request<ClientKVReq> r = new Request<>();
r.setObj(obj);
r.setUrl(addr);
r.setCmd(Request.CLIENT_REQ);
Response<String> response = null;
try {
response = client.send(r);
} catch (Exception e) {
}
LOGGER.info("request content : {}, url : {}, put response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response.getResult());
SleepHelper.sleep(1000);
obj = ClientKVReq.newBuilder().key("hello:" + keyNum).type(ClientKVReq.GET).build();
addr = list.get(index);
addr = list.get(index);
r.setUrl(addr);
r.setObj(obj);
Response<LogEntry> response2;
try {
response2 = client.send(r);
} catch (Exception e) {
r.setUrl(list.get((int) ((count.incrementAndGet()) % list.size())));
response2 = client.send(r);
}
if (response.getResult() == null) {
LOGGER.error("request content : {}, url : {}, get response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response2.getResult());
System.exit(1);
return;
}
LOGGER.info("request content : {}, url : {}, get response : {}", obj.key + "=" + obj.getValue(), r.getUrl(), response2.getResult());
} catch (Exception e) {
e.printStackTrace();
}
System.exit(1);
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/client/test.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.client;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import top.jbxie.raft.nodeCommon.NodeConfig;
@RestController
public class test {
// @Autowired
// private NodeConfig nodeConfig;
//
@Autowired
public static Environment environment;
// @RequestMapping("/bweather")
// private String getBWeather() {
// return String.format("weather.dt:%s ===== weather.humidity:%s ==== port:%s", nodeConfig.getDt(), nodeConfig.getHumidity(), environment.getProperty("server.port"));
// }
// public static void main(String[] args) {
// System.out.println(System.getProperty("server.port"));;
// }
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/clusterService/ClusterMembershipChanges.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.clusterService;
import top.jbxie.raft.nodeCommon.Peer;
/**
* 集群配置变更接口.
*/
public interface ClusterMembershipChanges {
/**
* 添加节点.
* @param newPeer
* @return
*/
Result addPeer(Peer newPeer);
/**
* 删除节点.
* @param oldPeer
* @return
*/
Result removePeer(Peer oldPeer);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/clusterService/Result.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.clusterService;
import lombok.Getter;
import lombok.Setter;
@Setter
@Getter
public class Result {
public static final int FAIL = 0;
public static final int SUCCESS = 1;
int status;
String leaderHint;
public Result() {
}
public Result(Builder builder) {
setStatus(builder.status);
setLeaderHint(builder.leaderHint);
}
@Override
public String toString() {
return "Result{" +
"status=" + status +
", leaderHint='" + leaderHint + '\'' +
'}';
}
public static Builder newBuilder() {
return new Builder();
}
@Getter
public enum Status {
FAIL(0), SUCCESS(1);
int code;
Status(int code) {
this.code = code;
}
public static Status value(int v) {
for (Status i : values()) {
if (i.code == v) {
return i;
}
}
return null;
}
}
public static final class Builder {
private int status;
private String leaderHint;
private Builder() {
}
public Builder status(int val) {
status = val;
return this;
}
public Builder leaderHint(String val) {
leaderHint = val;
return this;
}
public Result build() {
return new Result(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/clusterService/Server.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.clusterService;
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class Server {
String address;
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/clusterService/impl/ClusterMembershipChangesImpl.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.clusterService.impl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.clusterService.ClusterMembershipChanges;
import top.jbxie.raft.clusterService.Result;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.nodeCommon.NodeStatus;
import top.jbxie.raft.nodeCommon.Peer;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.util.impl.DefaultNode;
/**
* 集群配置变更接口默认实现.
*/
public class ClusterMembershipChangesImpl implements ClusterMembershipChanges {
private static final Logger LOGGER = LoggerFactory.getLogger(ClusterMembershipChangesImpl.class);
private final DefaultNode node;
public ClusterMembershipChangesImpl(DefaultNode node) {
this.node = node;
}
/** 必须是同步的,一次只能添加一个节点
* @param newPeer*/
@Override
public synchronized Result addPeer(Peer newPeer) {
// 已经存在
if (node.peerSet.getPeersWithOutSelf().contains(newPeer)) {
return new Result();
}
node.peerSet.getPeersWithOutSelf().add(newPeer);
if (node.status == NodeStatus.LEADER) {
node.getNextIndexs().put(newPeer, 0L);
node.getMatchIndexs().put(newPeer, 0L);
// node.nextIndexs.put(newPeer, 0L);
// node.matchIndexs.put(newPeer, 0L);
for (long i = 0; i < node.getLogModule().getLastIndex(); i++) {
LogEntry e = node.getLogModule().read(i);
if (e != null) {
node.replication(newPeer, e);
}
}
for (Peer item : node.peerSet.getPeersWithOutSelf()) {
// TODO 同步到其他节点.
Request request = Request.newBuilder()
.cmd(Request.CHANGE_CONFIG_ADD)
.url(newPeer.getAddr())
.obj(newPeer)
.build();
Response response = node.rpcClient.send(request);
Result result = (Result) response.getResult();
if (result != null && result.getStatus() == Result.Status.SUCCESS.getCode()) {
LOGGER.info("replication config success, peer : {}, newServer : {}", newPeer, newPeer);
} else {
LOGGER.warn("replication config fail, peer : {}, newServer : {}", newPeer, newPeer);
}
}
}
return new Result();
}
/** 必须是同步的,一次只能删除一个节点
* @param oldPeer*/
@Override
public synchronized Result removePeer(Peer oldPeer) {
node.peerSet.getPeersWithOutSelf().remove(oldPeer);
node.getNextIndexs().remove(oldPeer);
node.getMatchIndexs().remove(oldPeer);
return new Result();
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/current/RaftThread.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.current;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* raft线程异常捕获
*/
public class RaftThread extends Thread {
private static final Logger LOGGER = LoggerFactory.getLogger(RaftThread.class);
// 在Thread ApI中提供的UncaughtExceptionHandle，它能检测出某个由于未捕获的异常而终结的情况，有效地防止线程泄露问题。
// uncaughtException(Thread t, Throwable e)；
private static final UncaughtExceptionHandler uncaughtExceptionHandler = (t, e)
-> LOGGER.warn("Exception occurred from thread {}", t.getName(), e);
public RaftThread(String threadName, Runnable r) {
super(r, threadName);
setUncaughtExceptionHandler(uncaughtExceptionHandler);
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/current/RaftThreadPool.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.current;
import java.util.concurrent.*;
/**
* raft线程池配置
*/
public class RaftThreadPool {
private static int cup = Runtime.getRuntime().availableProcessors(); // 核心线程数
private static int maxPoolSize = cup * 2; // 最大线程池大小
private static final int queueSize = 1024; // 队列长度
private static final long keepTime = 1000 * 60; // 线程池维护线程所允许的空闲时间，当线程数大于核心时，这是多余空闲线程在终止前等待新任务的最长时间。
private static TimeUnit keepTimeUnit = TimeUnit.MILLISECONDS; // 时间单位---毫秒
// ScheduledExecutorService,是基于线程池设计的定时任务类,每个调度任务都会分配到线程池中的一个线程去执行,也就是说,任务是并发执行,互不影响。
// ScheduledThreadPoolExecutor处理定时任务
private static ScheduledExecutorService ss = new ScheduledThreadPoolExecutor(cup, new NameThreadFactory());
//定义线程池
private static ThreadPoolExecutor te = new RaftThreadPoolExecutor(
cup,
maxPoolSize,
keepTime,
keepTimeUnit,
new LinkedBlockingQueue<>(queueSize), //任务队列
new NameThreadFactory()); // 执行器创建新线程时要使用的工厂
// private static ThreadPoolExecutor getThreadPool() {
// return new RaftThreadPoolExecutor(
// cup,
// maxPoolSize,
// keepTime,
// keepTimeUnit,
// new LinkedBlockingQueue<>(queueSize),
// new NameThreadFactory());
// }
// private static ScheduledExecutorService getScheduled() {
// return new ScheduledThreadPoolExecutor(cup, new NameThreadFactory());
// }
/**
* scheduleAtFixedRate每次执行时间为上一次任务开始起向后推一个时间间隔
* @param r
* @param initDelay 首次执行任务的延迟时间
* @param delay 每次执行任务的间隔时间
*/
public static void scheduleAtFixedRate(Runnable r, long initDelay, long delay) {
ss.scheduleAtFixedRate(r, initDelay, delay, TimeUnit.MILLISECONDS);
}
/**
* scheduleWithFixedDelay每次执行时间为上一次任务结束起向后推一个时间间隔
* @param r
* @param delay
*/
public static void scheduleWithFixedDelay(Runnable r, long delay) {
ss.scheduleWithFixedDelay(r, 0, delay, TimeUnit.MILLISECONDS);
}
@SuppressWarnings("unchecked")
public static <T> Future<T> submit(Callable r) {
return te.submit(r);
}
/**
* 线程提交
* @param r Runnable接口实现类
*/
public static void execute(Runnable r) {
te.execute(r);
}
public static void execute(Runnable r, boolean sync) {
if (sync) {
r.run();
} else {
te.execute(r);
}
}
static class NameThreadFactory implements ThreadFactory {
@Override
public Thread newThread(Runnable r) {
Thread t = new RaftThread("Raft thread", r);
t.setDaemon(true); //守护线程
t.setPriority(5); // 优先级
return t;
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/current/RaftThreadPoolExecutor.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.current;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* raft线程池
*/
public class RaftThreadPoolExecutor extends ThreadPoolExecutor {
private static final Logger LOGGER = LoggerFactory.getLogger(RaftThreadPoolExecutor.class);
// 用ThreadLocal作为容器，当每个线程访问这个COST_TIME_WATCH变量时，ThreadLocal会为每个线程提供一份变量，各个线程互不影响。
private static final ThreadLocal<Long> COST_TIME_WATCH = ThreadLocal.withInitial(System::currentTimeMillis);
public RaftThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
BlockingQueue<Runnable> workQueue, RaftThreadPool.NameThreadFactory nameThreadFactory) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, nameThreadFactory);
}
@Override
protected void beforeExecute(Thread t, Runnable r) {
COST_TIME_WATCH.get();
LOGGER.debug("raft thread pool before Execute");
}
@Override
protected void afterExecute(Runnable r, Throwable t) {
LOGGER.debug("raft thread pool after Execute, cost time : {}", System.currentTimeMillis() - COST_TIME_WATCH.get());
COST_TIME_WATCH.remove();
}
@Override
protected void terminated() {
LOGGER.info("active count : {}, queueSize : {}, poolSize : {}", getActiveCount(), getQueue().size(), getPoolSize());
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/current/SleepHelper.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.current;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.TimeUnit;
public class SleepHelper {
private static final Logger LOGGER = LoggerFactory.getLogger(SleepHelper.class);
/**
* 线程休眠，单位毫秒
* @param ms
*/
public static void sleep(int ms) {
try {
Thread.sleep(ms);
} catch (InterruptedException e) {
LOGGER.warn(e.getMessage());
}
}
/**
* 线程休眠，单位秒
* @param seconds
*/
public static void sleep2(int seconds) {
try {
TimeUnit.SECONDS.sleep(seconds);
} catch (InterruptedException e) {
LOGGER.warn(e.getMessage());
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/AentryParam.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Getter;
import lombok.Setter;
import top.jbxie.raft.util.Consensus;
import java.util.Arrays;
/**
* 附加日志RPC参数. handlerAppendEntries
* 请求的参数（leader->follwer）
* 功能：日志复制
* @see Consensus#appendEntries(AentryParam)
*/
@Setter
@Getter
public class AentryParam extends BaseParam {
// 领导人的 Id，以便于跟随者重定向请求
String leaderId;
// 新的日志条目紧随之前的索引值
long prevLogIndex;
// prevLogIndex条目的任期号
long preLogTerm;
// 准备存储的日志条目（表示心跳时为空；一次性发送多个是为了提高效率）
LogEntry[] entries;
// 领导人已经提交的日志的索引值
long leaderCommit;
public AentryParam() {
}
private AentryParam(Builder builder) {
setTerm(builder.term);
setServerId(builder.serverId);
setLeaderId(builder.leaderId);
setPrevLogIndex(builder.prevLogIndex);
setPreLogTerm(builder.preLogTerm);
setEntries(builder.entries);
setLeaderCommit(builder.leaderCommit);
}
@Override
public String toString() {
return "AentryParam{" +
"leaderId='" + leaderId + '\'' +
", prevLogIndex=" + prevLogIndex +
", preLogTerm=" + preLogTerm +
", entries=" + Arrays.toString(entries) +
", leaderCommit=" + leaderCommit +
", term=" + term +
", serverId='" + serverId + '\'' +
'}';
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private long term;
private String serverId;
private String leaderId;
private long prevLogIndex;
private long preLogTerm;
private LogEntry[] entries;
private long leaderCommit;
private Builder() {
}
public Builder term(long val) {
term = val;
return this;
}
public Builder serverId(String val) {
serverId = val;
return this;
}
public Builder leaderId(String val) {
leaderId = val;
return this;
}
public Builder prevLogIndex(long val) {
prevLogIndex = val;
return this;
}
public Builder preLogTerm(long val) {
preLogTerm = val;
return this;
}
public Builder entries(LogEntry[] val) {
entries = val;
return this;
}
public Builder leaderCommit(long val) {
leaderCommit = val;
return this;
}
public AentryParam build() {
return new AentryParam(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/AentryResult.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Data;
import java.io.Serializable;
/**
* 附加 RPC 日志返回值.
* 请求的返回值
* 功能：日志复制
*/
@Data
public class AentryResult implements Serializable {
// 当前的任期号，用于领导人去更新自己
long term;
// 跟随者包含了匹配上prevLogIndex和prevLogTerm的日志时为真
boolean success;
public AentryResult(long term) {
this.term = term;
}
public AentryResult(boolean success) {
this.success = success;
}
public AentryResult(long term, boolean success) {
this.term = term;
this.success = success;
}
private AentryResult(Builder builder) {
setTerm(builder.term);
setSuccess(builder.success);
}
public static AentryResult fail() {
return new AentryResult(false);
}
public static AentryResult ok() {
return new AentryResult(true);
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private long term;
private boolean success;
private Builder() {
}
public Builder term(long val) {
term = val;
return this;
}
public Builder success(boolean val) {
success = val;
return this;
}
public AentryResult build() {
return new AentryResult(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/BaseParam.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Data;
import java.io.Serializable;
/**
* 请求投票 RPC 参数(候选人)
* 基础共有参数
*/
@Data
public class BaseParam implements Serializable {
// 候选人的任期号
public long term;
// 被请求者 ID(ip:selfAddr)
public String serverId;
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/Command.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
import java.io.Serializable;
import java.util.Objects;
@Getter
@Setter
@ToString
public class Command implements Serializable {
String key;
String value;
public Command(String key, String value) {
this.key = key;
this.value = value;
}
private Command(Builder builder) {
setKey(builder.key);
setValue(builder.value);
}
public static Builder newBuilder() {
return new Builder();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Command command = (Command) o;
return Objects.equals(key, command.key) &&
Objects.equals(value, command.value);
}
@Override
public int hashCode() {
return Objects.hash(key, value);
}
public static final class Builder {
private String key;
private String value;
private Builder() {
}
public Builder key(String val) {
key = val;
return this;
}
public Builder value(String val) {
value = val;
return this;
}
public Command build() {
return new Command(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/LogEntry.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Getter;
import lombok.Setter;
import java.io.Serializable;
import java.util.Objects;
import top.jbxie.raft.util.LogModule;
/**
* 日志条目
*
* @see LogModule
*/
@Getter
@Setter
public class LogEntry implements Serializable, Comparable {
// 日志索引值
private Long index;
// 日志任期号
private long term;
// 日志存储的内容（待执行命令）
private Command command;
public LogEntry() {
}
public LogEntry(long term, Command command) {
this.term = term;
this.command = command;
}
public LogEntry(Long index, long term, Command command) {
this.index = index;
this.term = term;
this.command = command;
}
private LogEntry(Builder builder) {
setIndex(builder.index);
setTerm(builder.term);
setCommand(builder.command);
}
public static Builder newBuilder() {
return new Builder();
}
@Override
public String toString() {
return "{" +
"index=" + index +
", term=" + term +
", command=" + command +
'}';
}
@Override
public int compareTo(Object o) {
if (o == null) {
return -1;
}
if (this.getIndex() > ((LogEntry) o).getIndex()) {
return 1;
}
return -1;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
LogEntry logEntry = (LogEntry) o;
return term == logEntry.term &&
Objects.equals(index, logEntry.index) &&
Objects.equals(command, logEntry.command);
}
@Override
public int hashCode() {
return Objects.hash(index, term, command);
}
public static final class Builder {
private Long index;
private long term;
private Command command;
private Builder() {
}
public Builder index(Long val) {
index = val;
return this;
}
public Builder term(long val) {
term = val;
return this;
}
public Builder command(Command val) {
command = val;
return this;
}
public LogEntry build() {
return new LogEntry(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/ReplicationFailModel.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import top.jbxie.raft.nodeCommon.Peer;
import java.util.concurrent.Callable;
public class ReplicationFailModel {
static String count = "_count";
static String success = "_success";
public String countKey;
public String successKey;
public Callable callable;
public LogEntry logEntry;
public Peer peer;
public Long offerTime;
public ReplicationFailModel(Callable callable, LogEntry logEntry, Peer peer, Long offerTime) {
this.callable = callable;
this.logEntry = logEntry;
this.peer = peer;
this.offerTime = offerTime;
countKey = logEntry.getCommand().getKey() + count;
successKey = logEntry.getCommand().getKey() + success;
}
private ReplicationFailModel(Builder builder) {
countKey = builder.countKey;
successKey = builder.successKey;
callable = builder.callable;
logEntry = builder.logEntry;
peer = builder.peer;
offerTime = builder.offerTime;
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private String countKey;
private String successKey;
private Callable callable;
private LogEntry logEntry;
private Peer peer;
private Long offerTime;
private Builder() {
}
public Builder countKey(String val) {
countKey = val;
return this;
}
public Builder successKey(String val) {
successKey = val;
return this;
}
public Builder callable(Callable val) {
callable = val;
return this;
}
public Builder logEntry(LogEntry val) {
logEntry = val;
return this;
}
public Builder peer(Peer val) {
peer = val;
return this;
}
public Builder offerTime(Long val) {
offerTime = val;
return this;
}
public ReplicationFailModel build() {
return new ReplicationFailModel(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/RvoteParam.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import top.jbxie.raft.util.Consensus;
import lombok.Getter;
import lombok.Setter;
/**
* 请求投票RPC参数(候选人).
* 功能：领导人选举
* @see Consensus#requestVote(RvoteParam)
*/
@Getter
@Setter
public class RvoteParam extends BaseParam {
// 请求选票的候选人的 Id(ip:selfAddr)
String candidateId;
// 候选人的最后日志条目的索引值
long lastLogIndex;
// 候选人最后日志条目的任期号
long lastLogTerm;
private RvoteParam(Builder builder) {
setTerm(builder.term);
setServerId(builder.serverId);
setCandidateId(builder.candidateId);
setLastLogIndex(builder.lastLogIndex);
setLastLogTerm(builder.lastLogTerm);
}
@Override
public String toString() {
return "RvoteParam{" +
"candidateId='" + candidateId + '\'' +
", lastLogIndex=" + lastLogIndex +
", lastLogTerm=" + lastLogTerm +
", term=" + term +
", serverId='" + serverId + '\'' +
'}';
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private long term;
private String serverId;
private String candidateId;
private long lastLogIndex;
private long lastLogTerm;
private Builder() {
}
public Builder term(long val) {
term = val;
return this;
}
public Builder serverId(String val) {
serverId = val;
return this;
}
public Builder candidateId(String val) {
candidateId = val;
return this;
}
public Builder lastLogIndex(long val) {
lastLogIndex = val;
return this;
}
public Builder lastLogTerm(long val) {
lastLogTerm = val;
return this;
}
public RvoteParam build() {
return new RvoteParam(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/entity/RvoteResult.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.entity;
import lombok.Data;
import java.io.Serializable;
/**
* 候选人请求投票RPC返回值.
* 功能：领导人选举
*/
@Data
public class RvoteResult implements Serializable {
// 当前任期号，以便于候选人去更新自己的任期
long term;
// 候选人赢得了此张选票时为真
boolean voteGranted;
public RvoteResult(boolean voteGranted) {
this.voteGranted = voteGranted;
}
private RvoteResult(Builder builder) {
setTerm(builder.term);
setVoteGranted(builder.voteGranted);
}
public static RvoteResult fail() {
return new RvoteResult(false);
}
public static RvoteResult ok() {
return new RvoteResult(true);
}
public static Builder newBuilder() {
return new Builder();
}
public static final class Builder {
private long term;
private boolean voteGranted;
private Builder() {
}
public Builder term(long term) {
this.term = term;
return this;
}
public Builder voteGranted(boolean voteGranted) {
this.voteGranted = voteGranted;
return this;
}
public RvoteResult build() {
return new RvoteResult(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/exception/RaftNotSupportException.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.exception;
public class RaftNotSupportException extends RuntimeException {
public RaftNotSupportException() {
}
public RaftNotSupportException(String message) {
super(message);
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/exception/RaftRemotingException.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.exception;
public class RaftRemotingException extends RuntimeException {
public RaftRemotingException() {
super();
}
public RaftRemotingException(String message) {
super(message);
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/nodeCommon/NodeConfig.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.nodeCommon;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;
import java.util.List;
/**
* 节点配置
*/
@Data
public class NodeConfig {
// 自身节点地址(目前为端口，后面修改为ip地址)
public int selfAddr;
//所有节点地址
public List<String> peerAddrs;
}
\ No newline at end of file
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/nodeCommon/NodeStatus.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.nodeCommon;
import lombok.Getter;
/**
* 节点状态枚举
*/
public interface NodeStatus {
int FOLLOWER = 0;
int CANDIDATE = 1;
int LEADER = 2;
@Getter
enum Enum {
FOLLOWER(0), CANDIDATE(1), LEADER(2);
Enum(int code) {
this.code = code;
}
int code;
public static Enum value(int i) {
for (Enum value : Enum.values()) {
if (value.code == i) {
return value;
}
}
return null;
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/nodeCommon/Peer.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.nodeCommon;
import lombok.Getter;
import lombok.Setter;
import java.util.Objects;
/**
* 当前节点
*/
@Getter
@Setter
public class Peer {
/** ip:selfAddr */
private final String addr;
public Peer(String addr) {
this.addr = addr;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Peer peer = (Peer) o;
return Objects.equals(addr, peer.addr);
}
@Override
public int hashCode() {
return Objects.hash(addr);
}
@Override
public String toString() {
return "Peer{" +
"addr='" + addr + '\'' +
'}';
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/nodeCommon/PeerSet.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.nodeCommon;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* 节点集合. 去重.
*/
public class PeerSet implements Serializable {
//节点集合
private List<Peer> list = new ArrayList<>();
//leader节点
private volatile Peer leader;
// final
private volatile Peer self;
private PeerSet() {
}
public static PeerSet getInstance() {
return PeerSetLazyHolder.INSTANCE;
}
private static class PeerSetLazyHolder {
private static final PeerSet INSTANCE = new PeerSet();
}
public void setSelf(Peer peer) {
self = peer;
}
public Peer getSelf() {
return self;
}
public void addPeer(Peer peer) {
list.add(peer);
}
public void removePeer(Peer peer) {
list.remove(peer);
}
public List<Peer> getPeers() {
return list;
}
public List<Peer> getPeersWithOutSelf() {
List<Peer> list2 = new ArrayList<>(list);
list2.remove(self);
return list2;
}
public Peer getLeader() {
return leader;
}
public void setLeader(Peer peer) {
leader = peer;
}
@Override
public String toString() {
return "PeerSet{" +
"list=" + list +
", leader=" + leader +
", self=" + self +
'}';
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/RaftUserProcessor.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc;
import com.alipay.remoting.AsyncContext;
import com.alipay.remoting.BizContext;
import com.alipay.remoting.rpc.protocol.AbstractUserProcessor;
import top.jbxie.raft.exception.RaftNotSupportException;
public abstract class RaftUserProcessor<T> extends AbstractUserProcessor<T> {
@Override
public void handleRequest(BizContext bizCtx, AsyncContext asyncCtx, T request) {
throw new RaftNotSupportException(
"Raft Server not support handleRequest(BizContext bizCtx, AsyncContext asyncCtx, T request) ");
}
@Override
public String interest() {
return Request.class.getName();
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/Request.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc;
import lombok.Data;
import top.jbxie.raft.client.ClientKVReq;
import top.jbxie.raft.entity.AentryParam;
import top.jbxie.raft.entity.RvoteParam;
import java.io.Serializable;
/**
* 发起请求
* @param <T>
*/
@Data
public class Request<T> implements Serializable {
// 请求投票
public static final int R_VOTE = 0;
// 附加日志
public static final int A_ENTRIES = 1;
// 客户端
public static final int CLIENT_REQ = 2;
// 配置变更. add
public static final int CHANGE_CONFIG_ADD = 3;
// 配置变更. remove
public static final int CHANGE_CONFIG_REMOVE = 4;
// 请求类型
private int cmd = -1;
/** param 请求的参数
* @see AentryParam
* @see RvoteParam
* @see ClientKVReq
* */
private T obj;
String url;
public Request() {
}
public Request(T obj) {
this.obj = obj;
}
public Request(int cmd, T obj, String url) {
this.cmd = cmd;
this.obj = obj;
this.url = url;
}
private Request(Builder builder) {
setCmd(builder.cmd);
setObj((T) builder.obj);
setUrl(builder.url);
}
public static Builder newBuilder() {
return new Builder<>();
}
public final static class Builder<T> {
private int cmd;
private Object obj;
private String url;
private Builder() {
}
public Builder cmd(int val) {
cmd = val;
return this;
}
public Builder obj(Object val) {
obj = val;
return this;
}
public Builder url(String val) {
url = val;
return this;
}
public Request<T> build() {
return new Request<T>(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/Response.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc;
import lombok.Getter;
import lombok.Setter;
import java.io.Serializable;
/**
* 请求返回结果
* @param <T> AentryResult,RvoteResult
*/
@Getter
@Setter
public class Response<T> implements Serializable {
private T result;
public Response(T result) {
this.result = result;
}
private Response(Builder builder) {
setResult((T) builder.result);
}
public static Response ok() {
return new Response<>("ok");
}
public static Response fail() {
return new Response<>("fail");
}
public static Builder newBuilder() {
return new Builder();
}
@Override
public String toString() {
return "Response{" +
"result=" + result +
'}';
}
public static final class Builder {
private Object result;
private Builder() {
}
public Builder result(Object val) {
result = val;
return this;
}
public Response build() {
return new Response(this);
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/RpcClient.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc;
public interface RpcClient {
Response send(Request request);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/RpcServer.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc;
public interface RpcServer {
void start();
void stop();
Response handlerRequest(Request request);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/impl/DefaultRpcClient.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc.impl;
import com.alipay.remoting.exception.RemotingException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.exception.RaftRemotingException;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.rpc.RpcClient;
public class DefaultRpcClient implements RpcClient {
public static Logger logger = LoggerFactory.getLogger(DefaultRpcClient.class.getName());
private final static com.alipay.remoting.rpc.RpcClient CLIENT = new com.alipay.remoting.rpc.RpcClient();
static {
CLIENT.init();
}
@Override
public Response send(Request request) {
Response result = null;
try {
result = (Response) CLIENT.invokeSync(request.getUrl(), request, 200000);
} catch (RemotingException e) {
e.printStackTrace();
logger.info("rpc RaftRemotingException ");
throw new RaftRemotingException();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
return result;
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/rpc/impl/DefaultRpcServer.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.rpc.impl;
import com.alipay.remoting.BizContext;
import top.jbxie.raft.client.ClientKVReq;
import top.jbxie.raft.clusterService.ClusterMembershipChanges;
import top.jbxie.raft.entity.AentryParam;
import top.jbxie.raft.entity.RvoteParam;
import top.jbxie.raft.nodeCommon.Peer;
import top.jbxie.raft.rpc.RaftUserProcessor;
import top.jbxie.raft.rpc.Request;
import top.jbxie.raft.rpc.Response;
import top.jbxie.raft.rpc.RpcServer;
import top.jbxie.raft.util.impl.DefaultNode;
public class DefaultRpcServer implements RpcServer {
private volatile boolean flag;
private DefaultNode node;
private com.alipay.remoting.rpc.RpcServer rpcServer;
public DefaultRpcServer(String ip, int port, DefaultNode node) {
if (flag) {
return;
}
synchronized (this) {
if (flag) {
return;
}
rpcServer = new com.alipay.remoting.rpc.RpcServer(ip, port);
rpcServer.registerUserProcessor(new RaftUserProcessor<Request>() {
@Override
public Object handleRequest(BizContext bizCtx, Request request) throws Exception {
return handlerRequest(request);
}
});
this.node = node;
flag = true;
}
}
public DefaultRpcServer(int port, DefaultNode node) {
if (flag) {
return;
}
synchronized (this) {
if (flag) {
return;
}
rpcServer = new com.alipay.remoting.rpc.RpcServer(port, false, false);
rpcServer.registerUserProcessor(new RaftUserProcessor<Request>() {
@Override
public Object handleRequest(BizContext bizCtx, Request request) throws Exception {
return handlerRequest(request);
}
});
this.node = node;
flag = true;
}
}
@Override
public void start() {
rpcServer.start();
}
@Override
public void stop() {
rpcServer.stop();
}
@Override
public Response handlerRequest(Request request) {
if (request.getCmd() == Request.R_VOTE) {
return new Response(node.handlerRequestVote((RvoteParam) request.getObj()));
} else if (request.getCmd() == Request.A_ENTRIES) {
return new Response(node.handlerAppendEntries((AentryParam) request.getObj()));
} else if (request.getCmd() == Request.CLIENT_REQ) {
return new Response(node.handlerClientRequest((ClientKVReq) request.getObj()));
} else if (request.getCmd() == Request.CHANGE_CONFIG_REMOVE) {
return new Response(((ClusterMembershipChanges) node).removePeer((Peer) request.getObj()));
} else if (request.getCmd() == Request.CHANGE_CONFIG_ADD) {
return new Response(((ClusterMembershipChanges) node).addPeer((Peer) request.getObj()));
}
return null;
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/Consensus.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
import top.jbxie.raft.entity.AentryParam;
import top.jbxie.raft.entity.AentryResult;
import top.jbxie.raft.entity.RvoteParam;
import top.jbxie.raft.entity.RvoteResult;
/**
* raft一致性模块
*/
public interface Consensus {
/**
* 功能：请求投票 RPC
*
* 接收者实现：
*
* 如果term < currentTerm返回 false （5.2 节）
* 如果 votedFor 为空或者就是 candidateId，并且候选人的日志至少和自己一样新，那么就投票给他（5.2 节，5.4 节）
* @return
*/
RvoteResult requestVote(RvoteParam param);
/**
* 功能：附加日志(多个日志,为了提高效率) RPC
*
* 接收者实现：
*
* 如果 term < currentTerm 就返回 false （5.1 节）
* 如果日志在 prevLogIndex 位置处的日志条目的任期号和 prevLogTerm 不匹配，则返回 false （5.3 节）
* 如果已经存在的日志条目和新的产生冲突（索引值相同但是任期号不同），删除这一条和之后所有的 （5.3 节）
* 附加任何在已有的日志中不存在的条目
* 如果 leaderCommit > commitIndex，令 commitIndex 等于 leaderCommit 和 新日志条目索引值中较小的一个
* @return
*/
AentryResult appendEntries(AentryParam param);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/LifeCycle.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
public interface LifeCycle {
void init() throws Throwable;
void destroy() throws Throwable;
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/LogModule.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
import top.jbxie.raft.entity.LogEntry;
/**
* @see top.jbxie.raft.entity.LogEntry;
*/
public interface LogModule {
void write(LogEntry logEntry);
LogEntry read(Long index);
void removeOnStartIndex(Long startIndex);
LogEntry getLast(); //获取最后一条日志条目
Long getLastIndex();
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/LongConvert.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
public class LongConvert {
public static long convert(Long l) {
if (l == null) {
return 0;
}
return l;
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/Node.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
import top.jbxie.raft.client.ClientKVAck;
import top.jbxie.raft.client.ClientKVReq;
import top.jbxie.raft.entity.*;
import top.jbxie.raft.nodeCommon.NodeConfig;
/**
* 节点功能
*/
public interface Node<T> extends LifeCycle {
/**
* 设置配置文件.
* @param config
*/
void setConfig(NodeConfig config);
/**
* 处理请求投票 RPC.
* 请求投票RPC参数RvoteParam
* 请求投票RPC返回值RvoteResult(候选人)
* 功能：领导者选举
* @param param
* @return
*/
RvoteResult handlerRequestVote(RvoteParam param);
/**
* 处理附加日志请求.
* 功能：日志复制
* @param param
* @return
*/
AentryResult handlerAppendEntries(AentryParam param);
/**
* 处理客户端请求.
*
* @param request
* @return
*/
ClientKVAck handlerClientRequest(ClientKVReq request);
/**
* 客户端发起的请求转发给 leader 节点.
* @param request
* @return
*/
ClientKVAck redirect(ClientKVReq request);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/StateMachine.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util;
import top.jbxie.raft.entity.LogEntry;
/**
* 状态机接口
*/
public interface StateMachine {
/**
* 将数据应用到状态机.
*
* 原则上,只需这一个方法(apply). 其他的方法是为了更方便的使用状态机.
* @param logEntry 日志中的数据.
*/
void apply(LogEntry logEntry);
LogEntry get(String key);
String getString(String key);
void setString(String key, String value);
void delString(String... key);
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/impl/DefaultConsensus.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util.impl;
import io.netty.util.internal.StringUtil;
import lombok.Data;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import top.jbxie.raft.entity.*;
import top.jbxie.raft.nodeCommon.NodeStatus;
import top.jbxie.raft.nodeCommon.Peer;
import top.jbxie.raft.util.Consensus;
import java.util.concurrent.locks.ReentrantLock;
/**
* 默认一致性模块实现
*/
@Data
public class DefaultConsensus implements Consensus {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultConsensus.class);
public final DefaultNode node;
public final ReentrantLock voteLock = new ReentrantLock();
public final ReentrantLock appendLock = new ReentrantLock();
public DefaultConsensus(DefaultNode node) {
this.node = node;
}
/**
* 功能：请求投票 RPC
* 接收者实现：
* 如果 param.term < node.currentTerm 返回 false （5.2 节）
* 如果 votedFor 为空或者就是 candidateId，并且候选人的日志至少和自己一样新，那么就投票给他（5.2 节，5.4 节）
*
* @param param
* @return
*/
@Override
public RvoteResult requestVote(RvoteParam param) {
try {
RvoteResult.Builder builder = RvoteResult.newBuilder();
if (!voteLock.tryLock()) {
return builder.term(node.getCurrentTerm()).voteGranted(false).build();
}
// 对方任期没有自己新
if (param.getTerm() < node.getCurrentTerm()) {
return builder.term(node.getCurrentTerm()).voteGranted(false).build();
}
// (当前节点并没有投票 或者 已经投票过了且是对方节点) && 对方日志和自己一样新
LOGGER.info("node {} current vote for [{}], param candidateId : {}", node.peerSet.getSelf(), node.getVotedFor(), param.getCandidateId());
LOGGER.info("node {} current term {}, peer term : {}", node.peerSet.getSelf(), node.getCurrentTerm(), param.getTerm());
if ((StringUtil.isNullOrEmpty(node.getVotedFor())) || node.getVotedFor().equals(param.getCandidateId())) {
if (node.getLogModule().getLast() != null) {
// 先比较term， term大的优先级大
if (node.getLogModule().getLast().getTerm() > param.getLastLogTerm()) {
return RvoteResult.fail();
}
// term >= 自己，再比较lastLongIndex
if (node.getLogModule().getLastIndex() > param.getLastLogIndex()) {
return RvoteResult.fail();
}
}
//切换状态
node.status = NodeStatus.FOLLOWER;
//更新
node.peerSet.setLeader(new Peer(param.getCandidateId()));
node.setCurrentTerm(param.getTerm());
node.setVotedFor(param.serverId);
//返回成功
return builder.term(node.currentTerm).voteGranted(true).build();
}
return builder.term(node.currentTerm).voteGranted(false).build();
} finally {
voteLock.unlock();
}
}
/**
* 功能：附加日志(多个日志,为了提高效率) RPC
* 接收者实现：
* 如果 term < currentTerm 就返回 false （5.1 节）
* 如果日志在 prevLogIndex 位置处的日志条目的任期号和 prevLogTerm 不匹配，则返回 false （5.3 节）
* 如果已经存在的日志条目和新的产生冲突（索引值相同但是任期号不同），删除这一条和之后所有的 （5.3 节）
* 附加任何在已有的日志中不存在的条目
* 如果 leaderCommit > commitIndex，令 commitIndex 等于 leaderCommit 和 新日志条目索引值中较小的一个
* @param param
* @return
*/
@Override
public AentryResult appendEntries(AentryParam param) {
AentryResult result = AentryResult.fail();
try {
if (!appendLock.tryLock()) {
return result;
}
result.setTerm(node.getCurrentTerm());
//不够格
if (param.getTerm() < node.getCurrentTerm()) {
return result;
}
node.preHeartBeatTime = System.currentTimeMillis();
node.preElectionTime = System.currentTimeMillis();
node.peerSet.setLeader(new Peer(param.getLeaderId()));
// 够格
if (param.getTerm() >= node.getCurrentTerm()) {
LOGGER.debug("node {} become FOLLOWER, currentTerm : {}, param Term : {}, param serverId",
node.peerSet.getSelf(), node.currentTerm, param.getTerm(), param.getServerId());
node.status = NodeStatus.FOLLOWER;
}
node.setCurrentTerm(param.getTerm());
// 心跳
if (param.getEntries()== null || param.getEntries().length == 0) {
LOGGER.info("node {} append heartbeat success , he's term : {}, my term : {}",
param.getLeaderId(), param.getTerm(), node.getCurrentTerm());
return AentryResult.newBuilder().term(node.getCurrentTerm()).success(true).build();
}
// 真实日志
// 第一次
if (node.getLogModule().getLastIndex() != 0 && param.getPrevLogIndex() != 0) {
LogEntry logEntry;
if ((logEntry = node.getLogModule().read(param.getPrevLogIndex())) != null) {
// 如果日志在 prevLogIndex 位置处的日志条目的任期号和 prevLogTerm 不匹配，则返回 false
// 需要减小 nextIndex 重试.
if (logEntry.getTerm() != param.getPreLogTerm()) {
return result;
}
} else {
// index 不对, 需要递减 nextIndex 重试.
return result;
}
}
// 如果已经存在的日志条目和新的产生冲突（索引值相同但是任期号不同），删除这一条和之后所有的
LogEntry existLog = node.getLogModule().read((param.getPrevLogIndex() + 1));
if (existLog != null && existLog.getTerm() != param.getEntries()[0].getTerm()) {
// 删除这一条和之后所有的, 然后写入日志和状态机.
node.getLogModule().removeOnStartIndex(param.getPrevLogIndex() + 1);
} else if (existLog != null) {
// 已经有日志了, 不能重复写入.
result.setSuccess(true);
return result;
}
// 写进日志并且应用到状态机
for (LogEntry entry : param.getEntries()) {
node.getLogModule().write(entry);
node.stateMachine.apply(entry);
result.setSuccess(true);
}
//如果 leaderCommit > commitIndex，令 commitIndex 等于 leaderCommit 和 新日志条目索引值中较小的一个
if (param.getLeaderCommit() > node.getCommitIndex()) {
int commitIndex = (int) Math.min(param.getLeaderCommit(), node.getLogModule().getLastIndex());
node.setCommitIndex(commitIndex);
node.setLastApplied(commitIndex);
}
result.setTerm(node.getCurrentTerm());
node.status = NodeStatus.FOLLOWER;
// TODO, 是否应当在成功回复之后, 才正式提交? 防止 leader "等待回复"过程中 挂掉.
return result;
} finally {
appendLock.unlock();
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/impl/DefaultLogModule.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util.impl;
import com.alibaba.fastjson.JSON;
import lombok.Getter;
import lombok.Setter;
import org.rocksdb.Options;
import org.rocksdb.RocksDB;
import org.rocksdb.RocksDBException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.nodeCommon.NodeConfig;
import top.jbxie.raft.util.LogModule;
import java.io.File;
import java.util.concurrent.locks.ReentrantLock;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
/**
* 默认的日志实现. 日志模块不关心 key, 只关心 index.
*/
@Getter
@Setter
public class DefaultLogModule implements LogModule {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultLogModule.class);
/** public just for test */
public static String dbDir;
public static String logsDir;
private static RocksDB logDb;
public final static byte[] LAST_INDEX_KEY = "LAST_INDEX_KEY".getBytes();
ReentrantLock lock = new ReentrantLock();
static {
if (dbDir == null) {
dbDir = "./rocksDB-raft/" + System.getProperty("serverPort");
}
if (logsDir == null) {
logsDir = dbDir + "/logModule";
}
RocksDB.loadLibrary(); // 因为RocksDB是由C++编写的，在Java中使用首先需要加载Native库, 默认这个方法会加压一个共享库到java.io.tmpdir
}
private DefaultLogModule() {
// 1. 打开数据库
// 1.1 创建数据库配置
Options options = new Options();
// 1.2 配置当数据库不存在时自动创建
options.setCreateIfMissing(true);
// 1.3 创建存储位置
File file = new File(logsDir);
boolean success = false;
if (!file.exists()) {
success = file.mkdirs();
}
if (success) {
LOGGER.warn("make a new dir : " + logsDir);
}
try {
// 1.4 打开数据库。因为RocksDB默认是保存在本地磁盘，所以需要指定位置
logDb = RocksDB.open(options, logsDir);
} catch (RocksDBException e) {
LOGGER.warn(e.getMessage());
}
}
public static DefaultLogModule getInstance() {
return DefaultLogsLazyHolder.INSTANCE;
}
private static class DefaultLogsLazyHolder {
private static final DefaultLogModule INSTANCE = new DefaultLogModule();
}
/**
* logEntry 的 index 就是 key. 严格保证递增.
*
* @param logEntry
*/
@Override
public void write(LogEntry logEntry) {
boolean success = false;
try {
lock.tryLock(3000, MILLISECONDS);
logEntry.setIndex(getLastIndex() + 1);
// 2. 写入数据
// RocksDB都是以字节流的方式写入数据库中，所以我们需要将字符串转换为字节流再写入。
// 调用put方法写入数据
logDb.put(logEntry.getIndex().toString().getBytes(), JSON.toJSONBytes(logEntry));
success = true;
LOGGER.info("DefaultLogModule write rocksDB success, logEntry info : [{}]", logEntry);
} catch (RocksDBException | InterruptedException e) {
LOGGER.warn(e.getMessage());
} finally {
if (success) {
updateLastIndex(logEntry.getIndex());
}
lock.unlock();
}
}
@Override
public LogEntry read(Long index) {
try {
// 3. 调用get方法读取数据
byte[] result = logDb.get(convert(index));
if (result == null) {
return null;
}
return JSON.parseObject(result, LogEntry.class);
} catch (RocksDBException e) {
e.printStackTrace();
}
return null;
}
@Override
public void removeOnStartIndex(Long startIndex) {
boolean success = false;
int count = 0;
try {
lock.tryLock(3000, MILLISECONDS);
for (long i = startIndex; i <= getLastIndex(); i++) {
// 4. 移除数据
logDb.delete(String.valueOf(i).getBytes());
++count;
}
success = true;
LOGGER.warn("rocksDB removeOnStartIndex success, count={} startIndex={}, lastIndex={}", count, startIndex, getLastIndex());
} catch (InterruptedException | RocksDBException e) {
LOGGER.warn(e.getMessage());
} finally {
if (success) {
updateLastIndex(getLastIndex() - count);
}
lock.unlock();
}
}
@Override
public LogEntry getLast() {
try {
byte[] result = logDb.get(convert(getLastIndex()));
if (result == null) {
return null;
}
return JSON.parseObject(result, LogEntry.class);
} catch (RocksDBException e) {
e.printStackTrace();
}
return null;
}
@Override
public Long getLastIndex() {
byte[] lastIndex = "-1".getBytes();
try {
lastIndex = logDb.get(LAST_INDEX_KEY);
if (lastIndex == null) {
lastIndex = "-1".getBytes();
}
} catch (RocksDBException e) {
e.printStackTrace();
}
return Long.valueOf(new String(lastIndex));
}
private byte[] convert(Long key) {
return key.toString().getBytes();
}
// 更新最新索引值
private void updateLastIndex(Long index) {
try {
// overWrite
logDb.put(LAST_INDEX_KEY, index.toString().getBytes());
} catch (RocksDBException e) {
e.printStackTrace();
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/java/top/jbxie/raft/util/impl/DefaultStateMachine.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.util.impl;
import com.alibaba.fastjson.JSON;
import lombok.Getter;
import lombok.Setter;
import org.rocksdb.Options;
import org.rocksdb.RocksDB;
import org.rocksdb.RocksDBException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import top.jbxie.raft.entity.Command;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.nodeCommon.NodeConfig;
import top.jbxie.raft.util.StateMachine;
import java.io.File;
/**
* 默认的状态机实现.
*/
@Getter
@Setter
public class DefaultStateMachine implements StateMachine {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultStateMachine.class);
/** public just for test */
public static String dbDir;
public static String stateMachineDir;
public static RocksDB machineDb;
static {
if (dbDir == null) {
dbDir = "./rocksDB-raft/" + System.getProperty("serverPort");
//dbDir = "./rocksDB-raft/" + 8779;
}
if (stateMachineDir == null) {
stateMachineDir = dbDir + "/stateMachine";
}
RocksDB.loadLibrary();
}
private DefaultStateMachine() {
synchronized (this) {
try {
File file = new File(stateMachineDir);
boolean success = false;
if (!file.exists()) {
success = file.mkdirs();
}
if (success) {
LOGGER.warn("make a new dir : " + stateMachineDir);
}
Options options = new Options();
options.setCreateIfMissing(true);
machineDb = RocksDB.open(options, stateMachineDir);
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
}
}
public static DefaultStateMachine getInstance() {
return DefaultStateMachineLazyHolder.INSTANCE;
}
private static class DefaultStateMachineLazyHolder {
private static final DefaultStateMachine INSTANCE = new DefaultStateMachine();
}
/**
* key为command中的key，可定义为消息主题，而value可定义为对应节点的ip
* @param key
* @return
*/
@Override
public LogEntry get(String key) {
try {
byte[] result = machineDb.get(key.getBytes());
if (result == null) {
return null;
}
return JSON.parseObject(result, LogEntry.class);
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
return null;
}
@Override
public String getString(String key) {
try {
byte[] bytes = machineDb.get(key.getBytes());
if (bytes != null) {
return new String(bytes);
}
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
return "";
}
@Override
public void setString(String key, String value) {
try {
machineDb.put(key.getBytes(), value.getBytes());
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
}
@Override
public void delString(String... key) {
try {
for (String s : key) {
machineDb.delete(s.getBytes());
}
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
}
/**
* 将数据应用到状态机.
* 原则上,只需这一个方法(apply). 其他的方法是为了更方便的使用状态机.
*
* @param logEntry 日志中的数据.
*/
@Override
public void apply(LogEntry logEntry) {
try {
Command command = logEntry.getCommand();
if (command == null) {
throw new IllegalArgumentException("command can not be null, logEntry : " + logEntry.toString());
}
String key = command.getKey();
machineDb.put(key.getBytes(), JSON.toJSONBytes(logEntry));
} catch (RocksDBException e) {
LOGGER.info(e.getMessage());
}
}
}
apps/cnf-space-iot/space-iot-raft/src/main/resources/application.yml 0 → 100644
View file @ 6504913a
#server:
# port: 8775
\ No newline at end of file
apps/cnf-space-iot/space-iot-raft/src/main/resources/log4j.xml 0 → 100644
View file @ 6504913a
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %t %5p [%c:%M:%L] - %m%n"/>
</layout>
</appender>
<root>
<level value="INFO"/>
<appender-ref ref="CONSOLE"/>
</root>
</log4j:configuration>
\ No newline at end of file
apps/cnf-space-iot/space-iot-raft/src/test/java/top/jbxie/raft/impl/DefaultLogModuleTest.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.impl;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import top.jbxie.raft.entity.Command;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.util.impl.DefaultLogModule;
public class DefaultLogModuleTest {
static {
System.setProperty("serverPort", "8775");
DefaultLogModule.dbDir = "./rocksDB-raft/" + System.getProperty("serverPort");
DefaultLogModule.logsDir = DefaultLogModule.dbDir + "/logModule";
}
DefaultLogModule defaultLogs;
@Before
public void setUp() throws Exception {
System.setProperty("serverPort", "8775");
defaultLogs = DefaultLogModule.getInstance();
}
@After
public void tearDown() throws Exception {
}
@Test
public void write() {
LogEntry entry = LogEntry.newBuilder().
term(1).
command(Command.newBuilder().key("hello").value("world").build()).
build();
defaultLogs.write(entry);
Assert.assertEquals(entry, defaultLogs.read(entry.getIndex()));
}
@Test
public void read() {
System.out.println(defaultLogs.getLastIndex());
}
@Test
public void remove() {
defaultLogs.removeOnStartIndex(3L);
}
@Test
public void getLast() {
}
@Test
public void getLastIndex() {
}
@Test
public void getDbDir() {
}
@Test
public void getLogsDir() {
}
@Test
public void setDbDir() {
}
}
apps/cnf-space-iot/space-iot-raft/src/test/java/top/jbxie/raft/impl/DefaultStateMachineTest.java 0 → 100644
View file @ 6504913a
package top.jbxie.raft.impl;
import org.junit.Before;
import org.junit.Test;
import org.rocksdb.RocksDBException;
import top.jbxie.raft.entity.Command;
import top.jbxie.raft.entity.LogEntry;
import top.jbxie.raft.util.impl.DefaultStateMachine;
public class DefaultStateMachineTest {
static {
System.setProperty("serverPort", "8776");
DefaultStateMachine.dbDir = "./rocksDB-raft/" + System.getProperty("serverPort");
DefaultStateMachine.stateMachineDir = DefaultStateMachine.dbDir + "/stateMachine";
}
DefaultStateMachine machine;
@Before
public void before() {
machine = DefaultStateMachine.getInstance();
}
@Test
public void apply() {
LogEntry logEntry = LogEntry.newBuilder().term(1).command(Command.newBuilder().key("hello").value("value1").build()).build();
machine.apply(logEntry);
}
@Test
public void applyRead() throws RocksDBException {
System.out.println(machine.get("hello:4"));
}
}
pom.xml
View file @ 6504913a
......@@ -9,7 +9,6 @@
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>cnf-utils</module>
<module>cnf-common-api</module>
<module>cnf-cloud-ipservice</module>
......@@ -20,6 +19,7 @@
<module>apps/cnf-weixingsim</module>
<module>apps/cnf-case-dis</module>
<module>apps/cnf-app-demo</module>
<module>apps/cnf-space-iot</module>
</modules>
......@@ -29,6 +29,7 @@
<spring.version>5.1.4.RELEASE</spring.version>
<docker.version>8.16.0</docker.version>
<curator.version>2.12.0</curator.version>
<lombok.version>1.18.12</lombok.version>
</properties>
<dependencyManagement>
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment