方便了解jbpm6.2功能我们能够建立一个測试项目，在当中构建一个測试基础类，详细过程例如以下所看到的。
在集成了插件org.drools.updatesite-6.2.0.Final.zip的eclipse中新建jbpm project。插件在參考链接1中jbpm-6.2.0.Final-installer-full.zip内已包括。
将此项目引入依赖的jbpm所须要的jar——在安装的jbpm6.2-installer-full
untime中，參见上节jbpm6.2 installer安装过程。
在项目文件夹srcmain
esourcesMETA-INF中添加persistence.xml文件。此JPA文件里配置測试JBPM功能的必要entity。persistence.xml文件内容例如以下所看到的。
<persistenceversion="2.0"xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsdhttp://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_2_0.xsd"xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/persistence"><persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA"><provider>org.hibernate.ejb.HibernatePersistence</provider><jta-data-source>jdbc/jbpm-ds</jta-data-source><mapping-file>META-INF/JBPMorm.xml</mapping-file><mapping-file>META-INF/Taskorm.xml</mapping-file><mapping-file>META-INF/TaskAuditorm.xml</mapping-file><class>org.drools.persistence.info.SessionInfo</class><class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class><class>org.drools.persistence.info.WorkItemInfo</class><class>org.jbpm.persistence.correlation.CorrelationKeyInfo</class><class>org.jbpm.persistence.correlation.CorrelationPropertyInfo</class><class>org.jbpm.process.audit.ProcessInstanceLog</class><class>org.jbpm.process.audit.NodeInstanceLog</class><class>org.jbpm.process.audit.VariableInstanceLog</class><!-- manager --><class>org.jbpm.runtime.manager.impl.jpa.ContextMappingInfo</class><class>org.jbpm.services.task.impl.model.AttachmentImpl</class><class>org.jbpm.services.task.impl.model.ContentImpl</class><class>org.jbpm.services.task.impl.model.BooleanExpressionImpl</class><class>org.jbpm.services.task.impl.model.CommentImpl</class><class>org.jbpm.services.task.impl.model.DeadlineImpl</class><class>org.jbpm.services.task.impl.model.DelegationImpl</class><class>org.jbpm.services.task.impl.model.EscalationImpl</class><class>org.jbpm.services.task.impl.model.GroupImpl</class><class>org.jbpm.services.task.impl.model.I18NTextImpl</class><class>org.jbpm.services.task.impl.model.NotificationImpl</class><class>org.jbpm.services.task.impl.model.EmailNotificationImpl</class><class>org.jbpm.services.task.impl.model.EmailNotificationHeaderImpl</class><class>org.jbpm.services.task.impl.model.PeopleAssignmentsImpl</class><class>org.jbpm.services.task.impl.model.ReassignmentImpl</class><class>org.jbpm.services.task.impl.model.TaskImpl</class><class>org.jbpm.services.task.impl.model.TaskDataImpl</class><class>org.jbpm.services.task.impl.model.UserImpl</class><!--BAM for task service --><class>org.jbpm.services.task.audit.impl.model.BAMTaskSummaryImpl</class><!-- Event Classes --><class>org.jbpm.services.task.audit.impl.model.TaskEventImpl</class><!-- Task Audit Classes --><class>org.jbpm.services.task.audit.impl.model.AuditTaskImpl</class><properties><property name="hibernate.max_fetch_depth" value="3"/><property name="hibernate.show_sql" value="true" /><!-- BZ 841786: AS7/EAP 6/Hib 4 uses new (sequence) generators which seem to cause problems --><property name="hibernate.id.new_generator_mappings" value="false" /><property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.BitronixJtaPlatform" /></properties></persistence-unit></persistence>
建立測试基础类。在此类中构建数据源、JBPM RuntimeManager(载入待測试流程），代码例如以下所看到的。
package com.chenwd.jbpm.test.base;import java.util.HashMap;import java.util.Map;import java.util.Properties;import javax.persistence.EntityManager;import javax.persistence.EntityManagerFactory;import javax.persistence.Persistence;import org.jbpm.process.audit.strategy.StandaloneJtaStrategy;import org.jbpm.runtime.manager.impl.RuntimeEnvironmentBuilder;import org.jbpm.services.task.identity.JBossUserGroupCallbackImpl;import org.junit.After;import org.junit.Before;import org.kie.api.io.ResourceType;import org.kie.api.runtime.manager.RuntimeEnvironment;import org.kie.api.runtime.manager.RuntimeManager;import org.kie.api.runtime.manager.RuntimeManagerFactory;import org.kie.api.task.UserGroupCallback;import org.kie.internal.io.ResourceFactory;import bitronix.tm.resource.jdbc.PoolingDataSource;public class jbpmTestBase {protected static EntityManagerFactory emf;protected static StandaloneJtaStrategy persistenceStrategy;protected static EntityManager em;private static PoolingDataSource ds;@Beforepublic void setup() {ds = setupDataSource();Map configOverrides = new HashMap();configOverrides.put("hibernate.hbm2ddl.auto", "none");configOverrides.put("hibernate.dialect", "org.hibernate.dialect.MySQL5InnoDBDialect");emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa", configOverrides);if(emf != null){persistenceStrategy = new StandaloneJtaStrategy(emf);em = persistenceStrategy.getEntityManager();}}@Afterpublic void teardown() {if (ds != null) {ds.close();}}protected static void out(Object o){System.out.println(String.valueOf(o));}private static RuntimeManager getRuntimeManager(String process) {Properties properties = new Properties();properties.setProperty("krisv", "");properties.setProperty("mary", "");properties.setProperty("john", "");UserGroupCallback userGroupCallback = new JBossUserGroupCallbackImpl(properties);RuntimeEnvironment environment = RuntimeEnvironmentBuilder.getDefault().persistence(true).entityManagerFactory(emf).userGroupCallback(userGroupCallback).addAsset(ResourceFactory.newClassPathResource(process), ResourceType.BPMN2).get();return RuntimeManagerFactory.Factory.get().newPerProcessInstanceRuntimeManager(environment);}private static PoolingDataSource setupDataSource() {PoolingDataSource pds = new PoolingDataSource();pds.setUniqueName("jdbc/jbpm-ds");pds.setClassName("bitronix.tm.resource.jdbc.lrc.LrcXADataSource");pds.setMaxPoolSize(5);pds.setAllowLocalTransactions(true);pds.getDriverProperties().put("user", "root");pds.getDriverProperties().put("password", "root");pds.getDriverProperties().put("url", "jdbc:mysql://localhost:3306/jbpm2");pds.getDriverProperties().put("driverClassName", "com.mysql.jdbc.Driver");pds.init();return pds;}}
在上面的类中，getRuntimeManager方法载入的用户的数量有限。在使用它做试验时可以动态设置task
actorid的账号比較少，并且没有group。我们能够在构建RuntimeEnvironment时自己实现userGroupCallback接口，这样能够对用户和组进行java编码验证。例如以下所看到的。
private static RuntimeManager getRuntimeManager(String process) {RuntimeEnvironment environment = RuntimeEnvironmentBuilder.getDefault().persistence(true).entityManagerFactory(emf).userGroupCallback(new UserGroupCallback() {public List<String> getGroupsForUser(String userId, List<String> groupIds, List<String> allExistingGroupIds) {List<String> result = new ArrayList<String>();if ("chenwd".equals(userId)) {result.add("group1");}return result;}public boolean existsUser(String arg0) {return true;}public boolean existsGroup(String arg0) {return true;}}).addAsset(ResourceFactory.newClassPathResource(process), ResourceType.BPMN2).get();return RuntimeManagerFactory.Factory.get().newPerProcessInstanceRuntimeManager(environment);}
在此方法中chenwd为group1的成员。假设处理group task能够採用这样的构建方式进行測试。
之后我们的详细測试类能够继承这个类。获取kieSession和taskServcie进行流程发起和task处理。示比例如以下所看到的。
public class JbpmTest extends JbpmTestBase{@Testpublic void testStartProcess() throws Exception {try {RuntimeManager manager = getRuntimeManager("sample.bpmn");RuntimeEngine runtime = manager.getRuntimeEngine(EmptyContext.get());KieSession ksession = runtime.getKieSession();//设置流程variables。发起流程Map<String, Object> params = new HashMap<String, Object>();ProcessInstance pi = ksession.startProcess("com.sample.bpmn.hello", params);manager.disposeRuntimeEngine(runtime);} catch (Throwable th) {th.printStackTrace();}}}
參考
1. jbpm6.2公布内容
2. jbpm6.2 user guide
3. jbpm6.2 API