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CAP理论和BASE理论

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罗祥
2020-05-06 17:43:59 +08:00
parent 29a6cc946b
commit 6ba5a17420
14 changed files with 503 additions and 654 deletions
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54
code/Java/stream-tutorial/pom.xml
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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">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>stream-tutorial</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.redisson/redisson -->
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson</artifactId>
<version>3.12.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>4.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>4.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.14</version>
</dependency>
</dependencies>
</project>

41
code/Java/stream-tutorial/src/main/java/com/heibaiying/DistributedLock.java
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package com.heibaiying;
import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.recipes.locks.InterProcessMutex;
import org.apache.curator.retry.RetryNTimes;
import java.util.concurrent.TimeUnit;
public class DistributedLock {
public static void main(String[] args) throws Exception {
RetryPolicy retryPolicy = new RetryNTimes(3, 5000);
CuratorFramework client = CuratorFrameworkFactory.builder()
.connectString("192.168.0.105:2181")
.sessionTimeoutMs(10000).retryPolicy(retryPolicy)
.namespace("mySpace").build();
client.start();
// 1. 创建分布式锁
InterProcessMutex lock = new InterProcessMutex(client, "/distributed/myLock");
// 2.尝试获取分布式锁
if (lock.acquire(10, TimeUnit.SECONDS)) {
try {
System.out.println("模拟业务耗时");
Thread.sleep(3 * 1000);
} finally {
// 3.释放锁
lock.release();
}
}
client.close();
}
}

70
code/Java/stream-tutorial/src/main/java/com/heibaiying/Employee.java
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package com.heibaiying;
public class Employee {
private String name;
private String gender;
private String company;
private int age;
private boolean isOfficial;
public Employee(String name, String gender, String company, int age) {
this.name = name;
this.gender = gender;
this.company = company;
this.age = age;
}
Employee(String name, int age,boolean isOfficial) {
this.name = name;
this.age = age;
this.isOfficial = isOfficial;
}
@Override
public String toString() {
return "Employee{" +
"name='" + name + '\'' +
'}';
}
public boolean isOfficial() {
return isOfficial;
}
public void setOfficial(boolean official) {
isOfficial = official;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getCompany() {
return company;
}
public void setCompany(String company) {
this.company = company;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}

62
code/Java/stream-tutorial/src/main/java/com/heibaiying/StreamTest.java
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@ -1,62 +0,0 @@
package com.heibaiying;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import java.util.function.BinaryOperator;
import java.util.function.IntConsumer;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class StreamTest {
public static void main(String[] args) {
System.out.println(UUID.randomUUID() + ":" + Thread.currentThread().getId());
}
/**
* 进行求和
*
* @param list
* @param initValue
* @param binaryOperator
* @param <T>
* @return
*/
public static <T> T reduce(List<T> list, T initValue, BinaryOperator<T> binaryOperator) {
for (T t : list) {
initValue = binaryOperator.apply(initValue, t);
}
return initValue;
}
/**
* 集合过滤
*
* @param list 待过滤的集合
* @param predicate 函数式接口
* @param <T> 集合中元素的类型
* @return 满足条件的元素的集合
*/
public static <T> List<T> filter(List<T> list, CustomPredicate<T> predicate) {
ArrayList<T> result = new ArrayList<>();
for (T t : list) {
if (predicate.test(t)) result.add(t);
}
return result;
}
/**
* 定义接口
*
* @param <T> 参数类型
*/
@FunctionalInterface
public interface CustomPredicate<T> {
// 判断是否满足过滤标准
boolean test(T t);
}
}

7
code/Java/stream-tutorial/src/main/resources/log4j.properties
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log4j.rootLogger=INFO, SYSLOG
log4j.appender.SYSLOG=org.apache.log4j.net.SyslogAppender
log4j.appender.SYSLOG.syslogHost=127.0.0.1
log4j.appender.SYSLOG.layout=org.apache.log4j.PatternLayout
log4j.appender.SYSLOG.layout.conversionPattern=%d{ISO8601} %-5p [%t] %c{2} %x - %m%n
log4j.appender.SYSLOG.Facility=LOCAL1