package org.jrest4guice.sample.contact.service;
import javax.annotation.security.RolesAllowed;
import org.jrest4guice.client.Page;
import org.jrest4guice.client.Pagination;
import org.jrest4guice.interceptor.annotations.Interceptor;
import org.jrest4guice.interceptor.annotations.Interceptors;
import org.jrest4guice.persistence.BaseEntityManager;
import org.jrest4guice.sample.contact.entity.Contact;
import org.jrest4guice.sample.contact.interceptor.ListContactsInterceptor;
import org.jrest4guice.sample.contact.interceptor.LogInterceptor;
import org.jrest4guice.sample.contact.interceptor.TestInterceptor;
import org.jrest4guice.transaction.annotations.Transactional;
import org.jrest4guice.transaction.annotations.TransactionalType;
import com.google.inject.Inject;
/**
*
* @author <a href="mailto:zhangyouqun@gmail.com">cnoss (QQ:86895156)</a>
*
*/
@Transactional//事务支持，缺省为TransactionalType.REQUIRED，可以在方法中覆写
@Interceptors({//自定义的拦截器（类级别的，作用于所有的方法，可以在方法中覆写）
@Interceptor(TestInterceptor.class),
@Interceptor(LogInterceptor.class)
})
public class ContactService{
//注入实体管理器
@Inject
private BaseEntityManager<String, Contact> entityManager;
public String createContact(Contact contact) {
if (contact == null)
throw new RuntimeException("联系人的内容不能为空");
if (this.entityManager.load("named:byName", contact.getName()) != null) {
throw new RuntimeException("联系人的姓名相同，请重新输入");
}
this.entityManager.create(contact);
return contact.getId();
}
@RolesAllowed("admin")
public void deleteContact(String contactId) {
String[] ids = contactId.split(",");
Contact contact;
for (String id : ids) {
contact = this.findContactById(id);
if (contact == null)
throw new RuntimeException("联系人不存在");
this.entityManager.delete(contact);
}
}
@Transactional(type=TransactionalType.READOLNY)
public Contact findContactById(String contactId) {
return this.entityManager.load(contactId);
}
@Transactional(type=TransactionalType.READOLNY)//覆盖类级别的事务类型为只读
@Interceptor(ListContactsInterceptor.class)//覆盖类级别的拦截器
public Page<Contact> listContacts(int pageIndex, int pageSize)
throws RuntimeException {
return this.entityManager.page("named:list",
new Pagination(pageIndex, pageSize));
}
public void updateContact(Contact contact) {
if (contact == null)
throw new RuntimeException("联系人的内容不能为空");
Contact tmpContact = this.entityManager.load("named:byName", contact.getName());
if(tmpContact != null && !contact.getId().equals(tmpContact.getId()))
throw new RuntimeException("联系人的姓名相同，请重新输入");
this.entityManager.update(contact);
}
}