lxy/redtimer
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

优化升级,支持任务执行计划的变更

Browse Source
This commit is contained in:
lxyer 2018-08-12 01:37:55 +08:00
parent b4603fa8f9
commit df5dba8384
8 changed files with 137 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
README.md
View File

@ -1,7 +1,7 @@
# redtimer
#### 项目介绍
redtimer是本人纯手工精心编写的一个任务定时调度器，
redtimer是本人纯手工精心编写的一个任务定时调度器，全部代码均自己编写实现；
功能包含**定时和时间解析**两部分功能；
编写她的意图，用更少的代码满足自己的业务功能需求，让其他业务代码更佳的随心所欲；
@ -13,19 +13,22 @@ redtimer是本人纯手工精心编写的一个任务定时调度器，
#### 安装使用教程
创建启动定时任务
```
TimerExecutor timerExecutor = new TimerExecutor(1);
timerExecutor.add(new TaskImpl("a1", new ScheduledExpres("0 2 * * *"));//定时每天2点执行
timerExecutor.start();
请看测试案例，以及阅读详细源码，所有的代码也就几百行；
Task task1 = new TaskImpl("a1", new ScheduledExpres("1-40 * * * *"));//1-40，定时每分钟执行
Task task2 = new TaskImpl("a1", new ScheduledCycle(1000 * 5));//a2定时每5s执行
timerExecutor.add(task1, task2);//添加任务 task1，task2
```
#### 参与贡献
你可以做这些
1. Fork 本项目
2. 新建 Feat_xxx 分支
3. 提交代码
4. 新建 Pull Request
5. **提出你的宝贵意见**
支持定时计划修改
```
//修改a1 每2s执行一次
task.setScheduled(new ScheduledCycle(2000 * 1));
timerExecutor.add(task);
```
请看测试案例，以及阅读详细源码，所有的代码也就几百行；
#### 关于
redbbs 交流群：527523235

8
src/main/java/com/lxyer/timer/AbstractTask.java
View File

@ -24,6 +24,12 @@ public abstract class AbstractTask implements Task {
return name;
}
@Override
public void setScheduled(Scheduled scheduled) {
this.scheduled = scheduled;
this.theTime = scheduled.theTime().toInstant(ZoneOffset.of("+8")).toEpochMilli();
}
@Override
public long nextTime(){
LocalDateTime next = scheduled.nextTime();
@ -35,6 +41,8 @@ public abstract class AbstractTask implements Task {
}
@Override
public long theTime(){
LocalDateTime next = scheduled.theTime();
this.theTime = next.toInstant(ZoneOffset.of("+8")).toEpochMilli();
return theTime;
}
}

29
src/main/java/com/lxyer/timer/Task.java
View File

@ -1,12 +1,41 @@
package com.lxyer.timer;
import com.lxyer.timer.scheduled.Scheduled;
/**
* @author: liangxianyou at 2018/8/5 19:32.
*/
public interface Task extends Runnable{
/**
* 得到任务名称
*
* @return
*/
String getName();
/**
* 设置任务执行计划
*
* @param scheduled
*/
void setScheduled(Scheduled scheduled);
/**
* 得到下一次执行计划的时间，并设置thenTime
* @return
*/
long nextTime();
/**
* 任务即将执行的时间点
*
* @return
*/
long theTime();
/**
* 执行任务
*/
void run();
}

14
src/main/java/com/lxyer/timer/TimerExecutor.java
View File

@ -12,16 +12,26 @@ public class TimerExecutor {
public TimerExecutor(int n) {
executor = Executors.newFixedThreadPool(n);
start();
}
public void add(Task task){
queue.put(task);
public void add(Task ... task){
for (Task t : task) {
queue.put(t);
}
}
private void add(Task task, boolean upTime){
if (upTime) task.nextTime();
queue.put(task);
}
public Task remove(String name){
return queue.remove(name);
}
public Task get(String name){
return queue.get(name);
}
public void start() {
new Thread(()->{

18
src/main/java/com/lxyer/timer/TimerQueue.java
View File

@ -7,6 +7,7 @@ import java.util.Set;
/**
* Created by liangxianyou at 2018/7/23 14:07.
*/
@SuppressWarnings("Duplicates")
class TimerQueue{
Object lock = new Object();
Task[] queue = new Task[128];
@ -26,7 +27,6 @@ class TimerQueue{
for (int i = size+1; i > inx; i--) {
queue[i] = queue[i-1];
queue[i-1] = null;
}
queue[inx] = task;
@ -38,7 +38,7 @@ class TimerQueue{
Task take() throws InterruptedException {
synchronized (lock){
if (size == 0) lock.wait();
while (size == 0) lock.wait(10);//循环避免非put线程唤醒空异常
long currentTime = System.currentTimeMillis();
long nextTime = queue[0].theTime();
@ -59,21 +59,33 @@ class TimerQueue{
}
Task remove(String name){
return get(name, true);
}
Task get(String name){
return get(name, false);
}
private Task get(String name, boolean remove) {
synchronized (lock){
if(!names.contains(name)) return null;
Task take = null;
for (int i = 0; i < size-1; i++) {
for (int i = 0; i < size; i++) {
if (name.equals(queue[i].getName())){
take = queue[i];
if (!remove) break;
while (i < size+1){
queue[i] = queue[i+1];
queue[i+1] = null;
i++;
}
names.remove(name);
size--;
break;
}
}
lock.notify();
return take;
}
}

15
src/main/java/com/lxyer/timer/scheduled/ScheduledCycle.java
View File

@ -11,7 +11,18 @@ public class ScheduledCycle implements Scheduled {
private LocalDateTime theTime;
private long period;
private TemporalUnit unit = ChronoUnit.SECONDS;
private TemporalUnit unit = ChronoUnit.MILLIS;
public ScheduledCycle(long period) {
this.theTime = LocalDateTime.now();
this.period = period;
}
public ScheduledCycle(long period,TemporalUnit unit) {
this.theTime = LocalDateTime.now();
this.period = period;
this.unit = unit;
}
public ScheduledCycle(LocalDateTime startTime, long period) {
this.theTime = startTime;
@ -25,7 +36,7 @@ public class ScheduledCycle implements Scheduled {
@Override
public LocalDateTime nextTime() {
return theTime.plus(period, unit);
return theTime = theTime.plus(period, unit);
}
@Override

13
src/main/java/com/lxyer/timer/scheduled/ScheduledExpres.java
View File

@ -21,24 +21,27 @@ public class ScheduledExpres implements Scheduled{
private int[] days;
private int[] monthes;
private int[] weeks;
private String[] cfgArr;
private String cfg;
private String[] cfgArr;
private LocalDateTime theTime;
private int _y,_M,_d,_H,_m;
public ScheduledExpres(String cfg){
this.cfg = cfg;
this.theTime = LocalDateTime.now();
initTheTime(cfg);
initTheTime();
}
public ScheduledExpres(final LocalDateTime startTime, String cfg){
LocalDateTime now = LocalDateTime.now();
this.theTime = now.isAfter(startTime)? now : startTime;
initTheTime(cfg);
this.cfg = cfg;
initTheTime();
}
//寻找初始合法时间
public void initTheTime( String cfg) {
public void initTheTime() {
year = theTime.getYear();
month = theTime.getMonthValue();
cfgArr = cfg.split(" ");
@ -103,7 +106,7 @@ public class ScheduledExpres implements Scheduled{
*/
@Override
public LocalDateTime nextTime(){
return carry("m");
return theTime = carry("m");
}
@Override

46
src/test/java/com/lxyer/timer/TimerTest.java
View File

@ -1,5 +1,6 @@
package com.lxyer.timer;
import com.lxyer.timer.scheduled.ScheduledCycle;
import com.lxyer.timer.scheduled.ScheduledExpres;
import org.junit.Test;
@ -19,16 +20,24 @@ public class TimerTest {
* 启动定时器测试，
*/
@Test
public void t2(){
public void t2() throws InterruptedException {
TimerExecutor timerExecutor = new TimerExecutor(1);
timerExecutor.add(new TaskImpl("a1", new ScheduledExpres(LocalDateTime.now(), "1-40/2 * * * *")));//1-40，定时每分钟执行
timerExecutor.start();
Task t1 = new TaskImpl("a1", new ScheduledExpres("1-40 * * * *"));//1-40，定时每分钟执行
TaskImpl t2 = new TaskImpl("a2", new ScheduledCycle(5000 * 1));
try {
Thread.sleep(1500_000000);
} catch (InterruptedException e) {
e.printStackTrace();
timerExecutor.add(t1, t2);
//60s后修改a1 每2s执行一次
Thread.sleep(1000 * 60);
//task = timerExecutor.get("a1");
if (t1 != null){
t1.setScheduled(new ScheduledCycle(2000 * 1));
timerExecutor.add(t1);
}
Thread.sleep(1500_000000);
}
/**
@ -133,7 +142,28 @@ public class TimerTest {
08 18 * 7,8 4
"task1", "1 22-23 * * 7"
*/
Task task = new TaskImpl("task1", new ScheduledExpres("1 22-23 * * 7"));
Task task = new TaskImpl("task1", new ScheduledExpres("1 22-23 * * 7")){
@Override
public void run() {
System.out.println("----");
System.out.println(new SimpleDateFormat("0: yyyy-MM-dd HH:mm:ss").format(theTime()));
System.out.println(new SimpleDateFormat("1: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("2: yyyy-MM-dd HH:mm:ss").format(nextTime()));
/*System.out.println(new SimpleDateFormat("3: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("4: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("5: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("6: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("7: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("8: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("9: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("10: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("11: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("12: yyyy-MM-dd HH:mm:ss").format(nextTime()));
System.out.println(new SimpleDateFormat("13: yyyy-MM-dd HH:mm:ss").format(nextTime()));*/
}
};
task.run();
task.setScheduled(new ScheduledCycle(1000 * 5));//定时每秒执行
task.run();
}