1.將一個(gè)大任務(wù)分解成幾個(gè)小的任務(wù)，并發(fā)執(zhí)行瓢剿，提高系統(tǒng)的吞吐量册踩。
2.master
//任務(wù)隊(duì)列
protected Queue<Object> workQueue = new ConcurrentLinkedQueue<Object>();
//woker隊(duì)列
protected Map<String,Thread> threadMap = new HashMap<>();
//子任務(wù)的結(jié)果處理集
protected Map<String,Object> = new ConcurrentHashMap<>();
//是否所有的子任務(wù)都結(jié)束了
public boolean isComplete() {
for (Map.Entry<String, Thread> entry : threadMap.entrySet()) {
if (entry.getValue().getState()!=Thread.State.TERMINATED){
return false;
}
}
return true;
}
public Master(Worker worker,int workerCount){
worker.setQueue(workQueue);
worker.setResultMap(resultMap);
//創(chuàng)建worker
for (int i = 0; i < countWorker; i++) {
threadMap.put(Integer.toString(i),new Thread(worker));
}
}
//提交一個(gè)任務(wù)
public void submit(Object job){
workQuery.add(job);
}
//返回子任務(wù)結(jié)果集
public Map<String,Object> getResultMap(){
return resultMap;
}
//開始運(yùn)行所有的worker
public void execute(){
for (Map.Entry<String,Thread> entry : threadMap.entrySet()){
entry.getValue().start();
}
worker implements Runnable
//任務(wù)隊(duì)列工闺，用于取得子任務(wù)
protected Queue<Object> workQueue;
//子任務(wù)處理結(jié)果集
protected Map<String, Object> resultMap;
public void setWorkQueue(Queue<Object> workQueue) {
this.workQueue = workQueue;
}
public void setResultMap(Map<String, Object> resultMap) {
this.resultMap = resultMap;
}
//子任務(wù)處理的邏輯桥氏，在子類中實(shí)現(xiàn)具體邏輯
public Object handle(Object input) {
return input;
}
@Override
public void run() {
}
