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写一个简单的工作流(三)

Posted on 2007-10-12 13:01 dennis 阅读(650) 评论(9)  编辑  收藏
    上午测试了下并发情况下的表现,测试场景:一个有20个节点,包括选择、顺序、并行路由的流程,所有节点都设置为自动执行,1000个线程并发启动案例,也就是这个流程同时有1000个案例在跑,全部跑完结果差强人意,比单线程慢了接近30倍。仔细调整了算法和加锁粒度,尽管整体性能有所提高,但是多线程和单线程间执行的差距仍然没有多大变化,性能瓶颈还是在核心的调度算法上,还需要分析下。测试程序如下:
package net.rubyeye.insect.workflow.test;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CyclicBarrier;

import net.rubyeye.insect.workflow.Place;
import net.rubyeye.insect.workflow.Token;
import net.rubyeye.insect.workflow.Transition;
import net.rubyeye.insect.workflow.WorkFlow;
import net.rubyeye.insect.workflow.WorkFlowManager;
import net.rubyeye.insect.workflow.basic.BasicWorkflowManager;
import net.rubyeye.insect.workflow.comm.TransitionType;
import net.rubyeye.insect.workflow.config.DefaultConfiguration;
import junit.framework.TestCase;

public class CompositeProcessTest extends TestCase {
    
private WorkFlowManager wm;

    WorkFlow composite;

    
private CyclicBarrier barrier;

    
private static final int total = 1000;

    @Override
    
protected void setUp() throws Exception {
        
this.barrier = new CyclicBarrier(total + 1);
        wm 
= new BasicWorkflowManager();
        wm.setConfiguration(
new DefaultConfiguration());

        WorkFlow sequence 
= wm.getWorkFlow("sequence");
        WorkFlow concurrency 
= wm.getWorkFlow("concurrency");
        WorkFlow choose 
= wm.getWorkFlow("choose");

        
// 组合流程
        composite = new WorkFlow();
        composite.setName(
"composite");
        composite.setId(
100);

        wm.saveWorkFlow(composite);

        
// 修改开始结束节点的输入输出库所
        sequence.getEnd().setType(TransitionType.NORMAL);
        sequence.getEnd().setOutputs(concurrency.getStart().getInputs());

        concurrency.getEnd().setType(TransitionType.NORMAL);
        concurrency.getEnd().setOutputs(choose.getStart().getInputs());

        composite.setStart(sequence.getStart());
        composite.setEnd(choose.getEnd());
        List
<Transition> transitions = new ArrayList<Transition>();
        transitions.addAll(sequence.getTransitions());
        transitions.addAll(concurrency.getTransitions());
        transitions.addAll(choose.getTransitions());
        composite.setTransitions(transitions);
    }

    
public void testConcurrencyCompositeProcesss() throws Exception {
        
for (int i = 0; i < total; i++) {
            
new FlowThread().start();
        }
        barrier.await();
        
long start = System.currentTimeMillis();
        barrier.await();
        
long end = System.currentTimeMillis();
        System.out.println(
"创建" + total + "个流程并发运行完毕\n花费时间:" + (end - start)
                
/ 1000.0 + "");
        
for (Transition transition : composite.getTransitions()) {
            System.out.println(transition.getName() 
+ "  "
                    
+ transition.isEnable());
            
for (Place place : transition.getOutputs()) {
                System.out.println(
"place " + place.getId() + " "
                        
+ place.getTokens().size());
            }
        }
    }

    
public void testCompositeProcesss() throws Exception {
        
long start = System.currentTimeMillis();
        
for (int i = 0; i < total; i++) {
            Token token1 
= wm.startWorkFlow("composite");
            token1.setAttribute(
"name""dennis");
            token1.setAttribute(
"num"21);
            wm.doAction(token1.getId());
            assertTrue(token1.isFinished());
        }
        
long end = System.currentTimeMillis();
        System.out.println(
"创建" + total + "个流程运行完毕\n花费时间:" + (end - start)
                
/ 1000.0 + "");
    }

    
class FlowThread extends Thread {

        @Override
        
public void run() {
            
try {
                barrier.await();
                
// wm = new BasicWorkflowManager();
                Token token1 = wm.startWorkFlow("composite");
                token1.setAttribute(
"name""dennis");
                token1.setAttribute(
"num"21);
                wm.doAction(token1.getId());
                assertTrue(token1.isFinished());
                barrier.await();
            } 
catch (Exception e) {
                
throw new RuntimeException(e);
            }
        }

    }
}


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