工作流引擎Activiti學習第三天（三）--- 基礎知識學習

JAVA代碼：

package com.activiti.study.helloworld;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.zip.ZipInputStream;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.repository.ProcessDefinitionQuery;
import org.activiti.engine.runtime.ProcessInstance;
import org.junit.Test;

public class b_ProcessDefinition {
	
	ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
	
	@Test
	public void testDeploymentProcessDefinition(){
		//得到倉庫對象Service
		Deployment deployment = processEngine.getRepositoryService()
			.createDeployment()
			.name("activitiStudy")
			//起始位置不要增加/
			.addClasspathResource("diagrams/MyProcess.bpmn")
			.addClasspathResource("diagrams/MyProcess.png")
			.deploy();
		System.out.println("Name: " + deployment.getName());
		System.out.println("Id: " + deployment.getId());
	}
	
	/**
	 * 從zip文件創建存儲流程定義
	 */
	
	@Test
	public void testDeploymentProcessDefinition_zip(){
		InputStream in = this.getClass().getClassLoader().getResourceAsStream("diagrams/helloworld.zip");  //反斜槓
		ZipInputStream paramZipInputStream = new ZipInputStream(in);
		Deployment deployment = processEngine.getRepositoryService()
			.createDeployment()
			.name("zipDe")
			.addZipInputStream(paramZipInputStream)
			.deploy();
		System.out.println("Name: " + deployment.getName());
		System.out.println("Id: " + deployment.getId());
	}
	
	
	/**
	 * 查詢流程定義
	 */
	@Test
	public void testQueryProcessDefinition(){
		ProcessDefinitionQuery processDefinitionQuery  = processEngine.getRepositoryService()
					.createProcessDefinitionQuery()
					.deploymentId("701");
		
		System.out.println(processDefinitionQuery.orderByDeploymentId().desc().list());;
	}
	
	/**
	 * 啓動流程
	 */
	@Test
	public void testStartProcess(){
		ProcessInstance processInstance = processEngine.getRuntimeService().startProcessInstanceByKey("helloworld");
		System.out.println("Id: " + processInstance.getActivityId());
		System.out.println("BussinessKey: " + processInstance.getBusinessKey());
	}
	
	/**
	 * 刪除流程定義
	 */
	@Test
	public void testDeleteProcessDefinition_inRunTime(){
		processEngine.getRuntimeService().startProcessInstanceByKey("helloworld");
		//不能刪除啓動的流程 會拋出異常
		processEngine.getRepositoryService().deleteDeployment("701");
	}
	
	@Test
	public void testDeleteProcessDefinition_Cascade(){
		processEngine.getRuntimeService().startProcessInstanceByKey("helloworld");
		//不能刪除啓動的流程 會拋出異常
		processEngine.getRepositoryService().deleteDeployment("701",true);
	}
	
	/**
	 * 查詢最新流程定義
	 */
	@Test
	public void testFindLastestVersionProcessDefination(){
		List<ProcessDefinition> list = processEngine.getRepositoryService()
					.createProcessDefinitionQuery()
					.orderByProcessDefinitionVersion()
					.asc().list();
		
		//放入Map 中
		Map<String,ProcessDefinition>  map = new LinkedHashMap<>();
		for(ProcessDefinition pd: list){
			map.put(pd.getKey(), pd);
		}
		
		List<ProcessDefinition> pdList = new ArrayList<ProcessDefinition>(map.values());
		System.out.println("===========================");
		for(ProcessDefinition pd : pdList){
			System.out.println(pd.getDeploymentId());
		}
		System.out.println("===========================");
		
	}
	
	

}