在实际的BPM集成开发过程中,Liferay和Activiti这两个异构的系统之间,用户、组的同步需求非常重要,用来实现签收组的概念,比如指定签收组、会签、抢签都需要用到。
Activiti可以通过自定义实现SessionFactory,实现customUserManager和customRoleManager的方式集成第三方的用户关系。
这里我介绍一个方法,可以借助Liferay的实体监听器来做用户、组、用户-组成员关系的三种同步。
其实实现原理非常简单
用户组的同步,就是实现 BaseModelListener 泛型接口
package com.lifiti.hooks; import org.osgi.service.component.annotations.Component;
import com.liferay.portal.kernel.exception.ModelListenerException;
import com.liferay.portal.kernel.model.BaseModelListener;
import com.liferay.portal.kernel.model.ModelListener;
import com.liferay.portal.kernel.model.UserGroup;
import com.lifiti.util.IdentifyHelper; @Component(immediate = true, service = ModelListener.class)
public class UserGroupListener extends BaseModelListener<UserGroup>{ @Override
public void onAfterCreate(UserGroup ug) throws ModelListenerException{
System.out.println(ug.getUuid()+ug.getName() + " Added.");
IdentifyHelper.saveGroup(ug.getUuid(), ug.getName(), 1);
} @Override
public void onAfterRemove(UserGroup ug) throws ModelListenerException {
System.out.println(ug.getName() + " Deleted.");
IdentifyHelper.delGroup(ug.getUuid());
} @Override
public void onAfterUpdate(UserGroup ug) throws ModelListenerException {
System.out.println(ug.getName() + " Modified.");
IdentifyHelper.delGroup(ug.getUuid());
IdentifyHelper.saveGroup(ug.getUuid(), ug.getName(), 1);
} }
用户,成员关系的同步
其中onAfterAddAssociation 就是监听成员关系,可以在liferay的users_usergroups表和activiti的act_id_membership查看
实际上就是一个关联中间表
package com.lifiti.hooks; import org.osgi.service.component.annotations.Component;
import com.liferay.portal.kernel.exception.ModelListenerException;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.model.BaseModelListener;
import com.liferay.portal.kernel.model.ModelListener;
import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.service.UserGroupLocalServiceUtil;
import com.liferay.portal.kernel.service.UserLocalServiceUtil;
import com.lifiti.util.IdentifyHelper; @Component(immediate = true, service = ModelListener.class)
public class UserListener extends BaseModelListener<User> { @Override
public void onAfterCreate(User u) throws ModelListenerException {
System.out.println(u.getScreenName() + " Added.");
IdentifyHelper.saveUser(u.getScreenName(), u.getLastName() + u.getFirstName(), u.getEmailAddress());
} @Override
public void onAfterRemove(User u) throws ModelListenerException {
System.out.println(u.getUserId() + " Deleted.");
IdentifyHelper.delUser(u.getScreenName());
} @Override
public void onAfterUpdate(User u) throws ModelListenerException {
System.out.println(u.getUserId() + " Modified.");
IdentifyHelper.delUser(u.getScreenName());
IdentifyHelper.saveUser(u.getScreenName(), u.getLastName() + u.getFirstName(), u.getEmailAddress());
} @Override
public void onAfterAddAssociation(Object classPK, String associationClassName, Object associationClassPK)
throws ModelListenerException {
try {
//对关系类型进行过滤,比如com.liferay.portal.kernel.model.UserRole先不处理
if ("com.liferay.portal.kernel.model.UserGroup".equals(associationClassName)) {
IdentifyHelper.createMembership(
UserLocalServiceUtil.getUser(Long.parseLong(classPK.toString())).getScreenName(),
UserGroupLocalServiceUtil.getUserGroup(Long.parseLong(associationClassPK.toString()))
.getUuid());
System.out.println(classPK.toString() + "#" + associationClassName + "#" + associationClassPK.toString()
+ " associationClassName Modified.");
}
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (PortalException e) {
e.printStackTrace();
}
} @Override
public void onAfterRemoveAssociation(Object classPK, String associationClassName, Object associationClassPK)
throws ModelListenerException {
try {
if ("com.liferay.portal.kernel.model.UserGroup".equals(associationClassName)) {
IdentifyHelper.deleteMembership(
UserLocalServiceUtil.getUser(Long.parseLong(classPK.toString())).getScreenName(),
UserGroupLocalServiceUtil.getUserGroup(Long.parseLong(associationClassPK.toString()))
.getUuid());
System.out.println(classPK.toString() + "#" + associationClassName + "#" + associationClassPK.toString()
+ " associationClassName Removed.");
}
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (PortalException e) {
e.printStackTrace();
}
} }
运行情况:
1、用户同步,在liferay的用户管理后台添加用户:
添加后,activiti也有同名的用户了(自动同步),即使修改或删除也能同步:
2、用户组同步
注意,liferay叫用户群组,acitiviti叫组
liferay添加组以后,activiti也自动同步:
3、成员关系同步
同步后,发现activiti也有同样的 “用户-组” 关系了
Activiti的集成开发系列文章集合在这里:
http://www.cnblogs.com/starcrm/p/6047486.html
全部工程源代码下载: