commit:支持app的纯后台服务

This commit is contained in:
Jerry
2020-10-29 18:54:21 +08:00
parent 96fddccc47
commit dd555d8bb1
656 changed files with 46519 additions and 0 deletions

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<?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>common</artifactId>
<groupId>com.orange.demo</groupId>
<version>1.0.0</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>common-sequence</artifactId>
<version>1.0.0</version>
<name>common-sequence</name>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>com.orange.demo</groupId>
<artifactId>common-core</artifactId>
<version>1.0.0</version>
</dependency>
<!-- zk客户端 -->
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>${curator.version}</version>
</dependency>
</dependencies>
</project>

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package com.orange.demo.common.sequence.config;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
/**
* common-sequence模块的自动配置引导类。
*
* @author Jerry
* @date 2020-08-08
*/
@EnableConfigurationProperties({IdGeneratorProperties.class})
public class IdGeneratorAutoConfigure {
}

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package com.orange.demo.common.sequence.config;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
/**
* common-sequence模块的配置类。
*
* @author Jerry
* @date 2020-08-08
*/
@Data
@ConfigurationProperties(prefix = "sequence")
public class IdGeneratorProperties {
/**
* 是否使用基于美团Leaf的分布式Id生成器。
*/
private Boolean advanceIdGenerator = false;
/**
* 基础版生成器所需的WorkNode参数值。仅当advanceIdGenerator为false时生效。
*/
private Integer snowflakeWorkNode = 1;
/**
* zk的地址。多个ip和端口之间逗号分隔。仅当advanceIdGenerator为true时生效。
* 如10.1.1.2:2181;10.1.1.3:2181。
*/
private String zkAddress;
/**
* 用于识别同一主机(ip相同)不同服务的端口号。与本机的ip一起构成zk中标识不同服务实例的key值。
* 仅当advanceIdGenerator为true时生效。
*/
private Integer idPort;
/**
* zk中生成WorkNode的路径。不同的业务可以使用不同的路径以免冲突。
* 仅当advanceIdGenerator为true时生效。
*/
private String zkPath;
}

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package com.orange.demo.common.sequence.generator;
import cn.hutool.core.lang.Snowflake;
import cn.hutool.core.util.IdUtil;
/**
* 基础版snowflake计算工具类。
* 和SnowflakeIdGenerator相比相同点是均为基于Snowflake算法的生成器。不同点在于当前类的
* WorkNodeId是通过配置文件静态指定的。而SnowflakeIdGenerator的WorkNodeId是由zk生成的。
*
* @author Jerry
* @date 2020-08-08
*/
public class BasicIdGenerator implements MyIdGenerator {
private Snowflake snowflake;
/**
* 构造函数。
*
* @param workNode 工作节点。
*/
public BasicIdGenerator(Integer workNode) {
snowflake = IdUtil.createSnowflake(workNode, 0);
}
/**
* 获取基于Snowflake算法的数值型Id。
* 由于底层实现为synchronized方法因此计算过程串行化且线程安全。
*
* @return 计算后的全局唯一Id。
*/
@Override
public long nextLongId() {
return this.snowflake.nextId();
}
/**
* 获取基于Snowflake算法的字符串Id。
* 由于底层实现为synchronized方法因此计算过程串行化且线程安全。
*
* @return 计算后的全局唯一Id。
*/
@Override
public String nextStringId() {
return this.snowflake.nextIdStr();
}
}

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package com.orange.demo.common.sequence.generator;
/**
* 分布式Id生成器的统一接口。
*
* @author Jerry
* @date 2020-08-08
*/
public interface MyIdGenerator {
/**
* 获取数值型分布式Id。
*
* @return 生成后的Id。
*/
long nextLongId();
/**
* 获取字符型分布式Id。
*
* @return 生成后的Id。
*/
String nextStringId();
}

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package com.orange.demo.common.sequence.generator;
import cn.hutool.core.thread.ThreadUtil;
import cn.hutool.core.util.RandomUtil;
import com.orange.demo.common.core.util.IpUtil;
import com.google.common.base.Preconditions;
import lombok.extern.slf4j.Slf4j;
import java.util.Random;
/**
* Snowflake Id生成器。该实现完全copy美团的leaf。
*
* @author MeiTuan.Team
* @date 2020-08-08
*/
@Slf4j
public class SnowflakeIdGenerator implements MyIdGenerator {
private static final long TWEPOCH = 1288834974657L;
private static final long WORKER_ID_BITS = 10L;
/**
* 最大能够分配的workerid =1023
*/
private static final long MAX_WORKER_ID = ~(-1L << WORKER_ID_BITS);
private static final long SEQUENCE_BITS = 12L;
private static final long TIMESTAMP_LEFT_SHIFT = SEQUENCE_BITS + WORKER_ID_BITS;
private static final long SEQUENCE_MASK = ~(-1L << SEQUENCE_BITS);
private long workerId;
private long sequence = 0L;
private long lastTimestamp = -1L;
private static final Random RANDOM = RandomUtil.getRandom();
/**
* @param zkAddress zk地址
* @param idPort 用于识别相同ip内不同服务的端口号。仅作为标识用不会对该端口进行监听。
*/
public SnowflakeIdGenerator(String zkAddress, int idPort, String zkPath) {
Preconditions.checkArgument(
timeGen() > TWEPOCH, "Snowflake not support twepoch greater than currentTime");
final String ip = IpUtil.getFirstLocalIpAddress();
SnowflakeZookeeperHolder holder =
new SnowflakeZookeeperHolder(ip, String.valueOf(idPort), zkAddress, zkPath);
log.info("twepoch:{} ,ip:{} ,zkAddress:{} port:{}", TWEPOCH, ip, zkAddress, idPort);
boolean initFlag = holder.init();
Preconditions.checkArgument(initFlag, "Snowflake Id Gen is not init ok");
workerId = holder.getWorkerId();
log.info("START SUCCESS USE ZK WORKERID-{}", workerId);
Preconditions.checkArgument(
workerId >= 0 && workerId <= MAX_WORKER_ID, "WorkerId must (>= 0 and <=> 1023");
}
/**
* 获取字符型分布式Id。
*
* @return 生成后的Id。
*/
@Override
public synchronized String nextStringId() {
return String.valueOf(this.nextLongId());
}
/**
* 获取数值型分布式Id。
*
* @return 生成后的Id。
*/
@Override
public synchronized long nextLongId() {
long timestamp = timeGen();
int maxGap = 10;
if (timestamp < lastTimestamp) {
long offset = lastTimestamp - timestamp;
if (offset <= maxGap) {
if (!ThreadUtil.sleep(offset << 1)) {
log.error("Thread is interrupted while synchronizing to LastTimeStamp.");
throw new SnowflakeGenerateException(
"Thread is interrupted while synchronizing to LastTimeStamp..");
}
timestamp = timeGen();
if (timestamp < lastTimestamp) {
log.error("CurrentTime is less than LastTimeStamp too much (> 10ms) after synchronized.");
throw new SnowflakeGenerateException(
"CurrentTime is less than LastTimeStamp too much (> 10ms) after synchronized.");
}
} else {
log.error("CurrentTime is less than LastTimeStamp too much (> 10ms).");
throw new SnowflakeGenerateException(
"CurrentTime is less than LastTimeStamp too much (> 10ms).");
}
}
if (lastTimestamp == timestamp) {
sequence = (sequence + 1) & SEQUENCE_MASK;
if (sequence == 0) {
//seq 为0的时候表示是下一毫秒时间开始对seq做随机
sequence = RANDOM.nextInt(100);
timestamp = tilNextMillis(lastTimestamp);
}
} else {
//如果是新的ms开始
sequence = RANDOM.nextInt(100);
}
lastTimestamp = timestamp;
return ((timestamp - TWEPOCH) << TIMESTAMP_LEFT_SHIFT) | (workerId << SEQUENCE_BITS) | sequence;
}
protected long tilNextMillis(long lastTimestamp) {
long timestamp = timeGen();
while (timestamp <= lastTimestamp) {
timestamp = timeGen();
}
return timestamp;
}
protected long timeGen() {
return System.currentTimeMillis();
}
public static class SnowflakeGenerateException extends RuntimeException {
public SnowflakeGenerateException(String msg, Throwable e) {
super(msg, e);
}
public SnowflakeGenerateException(String msg) {
super(msg);
}
}
}

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package com.orange.demo.common.sequence.generator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Maps;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.RetryUntilElapsed;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.data.Stat;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.*;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* Snowflake Id生成器所依赖的zk工具类。该实现完全copy美团的leaf。
*
* @author MeiTuan.Team
* @date 2020-08-08
*/
@Slf4j
@Data
public class SnowflakeZookeeperHolder {
private static final int CONNECTION_TIMEOUT_MS = 10000;
private static final int SESSION_TIMEOUT_MS = 6000;
private String zkAddressNode = null;
private String listenAddress;
private int workerId;
private String ip;
private String port;
private String connectionString;
private String pathForever;
private final String cachePath;
private long lastUpdateTime;
public SnowflakeZookeeperHolder(String ip, String port, String connectionString, String zkPath) {
this.ip = ip;
this.port = port;
this.listenAddress = ip + ":" + port;
this.connectionString = connectionString;
this.pathForever = "/snowflake/" + zkPath + "/forever";
this.cachePath = System.getProperty("java.io.tmpdir")
+ File.separator + zkPath + "/leafconf/{port}/workerID.properties";
}
/**
* 初始化zk中的持久化SEQUENTIAL节点数据。如果不存在就创建新的存在则引用原有的。
*
* @return true初始化成功否则失败。
*/
public boolean init() {
try {
CuratorFramework curator = createWithOptions(connectionString,
new RetryUntilElapsed(1000, 4));
curator.start();
Stat stat = curator.checkExists().forPath(pathForever);
if (stat == null) {
//不存在根节点,机器第一次启动,创建/snowflake/ip:port-000000000,并上传数据
zkAddressNode = createNode(curator);
//worker id 默认是0
updateLocalWorkerId(workerId);
//定时上报本机时间给forever节点
scheduledUploadData(curator, zkAddressNode);
return true;
} else {
//ip:port->00001
Map<String, Integer> nodeMap = Maps.newHashMap();
//ip:port->(ipport-000001)
Map<String, String> realNode = Maps.newHashMap();
//存在根节点,先检查是否有属于自己的根节点
List<String> keys = curator.getChildren().forPath(pathForever);
for (String key : keys) {
String[] nodeKey = key.split("-");
realNode.put(nodeKey[0], key);
nodeMap.put(nodeKey[0], Integer.parseInt(nodeKey[1]));
}
Integer workerid = nodeMap.get(listenAddress);
if (workerid != null) {
//有自己的节点,zk_AddressNode=ip:port
zkAddressNode = pathForever + "/" + realNode.get(listenAddress);
//启动worder时使用会使用
workerId = workerid;
if (!checkInitTimeStamp(curator, zkAddressNode)) {
throw new CheckLastTimeException(
"Init timestamp check error,forever node timestamp greater than this node time");
}
} else {
//表示新启动的节点,创建持久节点 ,不用check时间
String newNode = createNode(curator);
zkAddressNode = newNode;
String[] nodeKey = newNode.split("-");
workerId = Integer.parseInt(nodeKey[1]);
}
doService(curator);
updateLocalWorkerId(workerId);
}
} catch (Exception e) {
log.error("Start node ERROR", e);
try {
Properties properties = new Properties();
properties.load(new FileInputStream(new File(cachePath.replace("{port}", port + ""))));
workerId = Integer.parseInt(properties.getProperty("workerId"));
log.warn("START FAILED ,use local node file properties workerID-{}", workerId);
} catch (Exception e1) {
log.error("Read file error ", e1);
return false;
}
}
return true;
}
private void doService(CuratorFramework curator) {
scheduledUploadData(curator, zkAddressNode);
}
private void scheduledUploadData(final CuratorFramework curator, final String zkAddressNode) {
ScheduledExecutorService executorService = new ScheduledThreadPoolExecutor(1,
new BasicThreadFactory.Builder().namingPattern("schedule-upload-time-%d").daemon(true).build());
executorService.scheduleWithFixedDelay(() ->
updateNewData(curator, zkAddressNode), 1, 3, TimeUnit.SECONDS);
}
private boolean checkInitTimeStamp(CuratorFramework curator, String zkAddressNode) throws Exception {
byte[] bytes = curator.getData().forPath(zkAddressNode);
ObjectMapper mapper = new ObjectMapper();
Endpoint endPoint = mapper.readValue(new String(bytes), Endpoint.class);
//该节点的时间不能小于最后一次上报的时间
return endPoint.getTimestamp() <= System.currentTimeMillis();
}
private String createNode(CuratorFramework curator) throws Exception {
try {
return curator.create()
.creatingParentsIfNeeded()
.withMode(CreateMode.PERSISTENT_SEQUENTIAL)
.forPath(pathForever + "/" + listenAddress + "-", buildData().getBytes());
} catch (Exception e) {
log.error("create node error msg {} ", e.getMessage());
throw e;
}
}
private void updateNewData(CuratorFramework curator, String path) {
try {
if (System.currentTimeMillis() < lastUpdateTime) {
return;
}
curator.setData().forPath(path, buildData().getBytes());
lastUpdateTime = System.currentTimeMillis();
} catch (Exception e) {
log.info("update init data error path is {} error is {}", path, e);
}
}
private String buildData() throws JsonProcessingException {
Endpoint endpoint = new Endpoint(ip, port, System.currentTimeMillis());
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(endpoint);
}
private void updateLocalWorkerId(int workId) {
File leafConfFile = new File(cachePath.replace("{port}", port));
boolean exists = leafConfFile.exists();
log.info("file exists status is {}", exists);
if (exists) {
try {
FileUtils.writeStringToFile(
leafConfFile, "workId=" + workId, StandardCharsets.UTF_8, false);
log.info("update file cache workId is {}", workId);
} catch (IOException e) {
log.error("update file cache error ", e);
}
} else {
//不存在文件,父目录页肯定不存在
try {
boolean mkdirs = leafConfFile.getParentFile().mkdirs();
log.info("init local file cache create parent dis status is {}, worker id is {}", mkdirs, workId);
if (mkdirs) {
if (leafConfFile.createNewFile()) {
FileUtils.writeStringToFile(
leafConfFile, "workId=" + workId, StandardCharsets.UTF_8, false);
log.info("local file cache workId is {}", workId);
}
} else {
log.warn("create parent dir error===");
}
} catch (IOException e) {
log.warn("craete workId conf file error", e);
}
}
}
private CuratorFramework createWithOptions(String connectionString, RetryPolicy retryPolicy) {
return CuratorFrameworkFactory.builder().connectString(connectionString)
.retryPolicy(retryPolicy)
.connectionTimeoutMs(CONNECTION_TIMEOUT_MS)
.sessionTimeoutMs(SESSION_TIMEOUT_MS)
.build();
}
/**
* 上报数据结构
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
static class Endpoint {
private String ip;
private String port;
private long timestamp;
}
public static class CheckLastTimeException extends RuntimeException {
public CheckLastTimeException(String msg) {
super(msg);
}
}
}

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package com.orange.demo.common.sequence.wrapper;
import com.orange.demo.common.sequence.config.IdGeneratorProperties;
import com.orange.demo.common.sequence.generator.BasicIdGenerator;
import com.orange.demo.common.sequence.generator.MyIdGenerator;
import com.orange.demo.common.sequence.generator.SnowflakeIdGenerator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
/**
* 分布式Id生成器的封装类。该对象可根据配置选择不同的生成器实现类。
*
* @author Jerry
* @date 2020-08-08
*/
@Component
public class IdGeneratorWrapper {
@Autowired
private IdGeneratorProperties properties;
/**
* Id生成器接口对象。
*/
private MyIdGenerator idGenerator;
@PostConstruct
public void init() {
if (properties.getAdvanceIdGenerator()) {
idGenerator = new SnowflakeIdGenerator(
properties.getZkAddress(), properties.getIdPort(), properties.getZkPath());
} else {
idGenerator = new BasicIdGenerator(properties.getSnowflakeWorkNode());
}
}
/**
* 获取基于Snowflake算法的数值型Id。
* 由于底层实现为synchronized方法因此计算过程串行化且线程安全。
*
* @return 计算后的全局唯一Id。
*/
public long nextLongId() {
return idGenerator.nextLongId();
}
/**
* 获取基于Snowflake算法的字符串Id。
* 由于底层实现为synchronized方法因此计算过程串行化且线程安全。
*
* @return 计算后的全局唯一Id。
*/
public String nextStringId() {
return idGenerator.nextStringId();
}
}

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org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.orange.demo.common.sequence.config.IdGeneratorAutoConfigure