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增加角色的本地缓存刷新

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This commit is contained in:
YunaiV
2021-01-23 18:17:48 +08:00
parent 545e9d2a0f
commit 1ecbe5aa61
12 changed files with 166 additions and 20 deletions
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3
src/main/java/cn/iocoder/dashboard/modules/system/service/dept/impl/SysDeptServiceImpl.java
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@@ -88,7 +88,7 @@ public class SysDeptServiceImpl implements SysDeptService {
parentDeptCache = parentBuilder.build();
assert deptList.size() > 0; // 断言，避免告警
maxUpdateTime = deptList.stream().max(Comparator.comparing(BaseDO::getUpdateTime)).get().getUpdateTime();
log.info("[init][初始化 Dept 数量为 {}]", deptList.size());
log.info("[initLocalCache][初始化 Dept 数量为 {}]", deptList.size());
}
@Scheduled(fixedDelay = SCHEDULER_PERIOD, initialDelay = SCHEDULER_PERIOD)
@@ -201,7 +201,6 @@ public class SysDeptServiceImpl implements SysDeptService {
// 删除部门
deptMapper.deleteById(id);
// TODO 需要处理下与角色的数据权限关联，等做数据权限一起处理下
// 发送刷新消息
deptProducer.sendDeptRefreshMessage();
}

2
src/main/java/cn/iocoder/dashboard/modules/system/service/dict/impl/SysDictDataServiceImpl.java
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@@ -100,7 +100,7 @@ public class SysDictDataServiceImpl implements SysDictDataService {
valueDictDataCache = valueDictDataBuilder.build();
assert dataList.size() > 0; // 断言，避免告警
maxUpdateTime = dataList.stream().max(Comparator.comparing(BaseDO::getUpdateTime)).get().getUpdateTime();
log.info("[init][缓存字典数据，数量为:{}]", dataList.size());
log.info("[initLocalCache][缓存字典数据，数量为:{}]", dataList.size());
}
@Scheduled(fixedDelay = SCHEDULER_PERIOD, initialDelay = SCHEDULER_PERIOD)

4
src/main/java/cn/iocoder/dashboard/modules/system/service/permission/SysRoleService.java
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@@ -20,9 +20,9 @@ import java.util.Set;
public interface SysRoleService {
/**
* 初始化
* 初始化角色的本地缓存
*/
void init();
void initLocalCache();
/**
* 获得角色，从缓存中

2
src/main/java/cn/iocoder/dashboard/modules/system/service/permission/impl/SysMenuServiceImpl.java
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@@ -98,7 +98,7 @@ public class SysMenuServiceImpl implements SysMenuService {
permMenuCache = permMenuCacheBuilder.build();
assert menuList.size() > 0; // 断言，避免告警
maxUpdateTime = menuList.stream().max(Comparator.comparing(BaseDO::getUpdateTime)).get().getUpdateTime();
log.info("[init][缓存菜单，数量为:{}]", menuList.size());
log.info("[initLocalCache][缓存菜单，数量为:{}]", menuList.size());
}
@Scheduled(fixedDelay = SCHEDULER_PERIOD, initialDelay = SCHEDULER_PERIOD)

2
src/main/java/cn/iocoder/dashboard/modules/system/service/permission/impl/SysPermissionServiceImpl.java
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@@ -78,7 +78,7 @@ public class SysPermissionServiceImpl implements SysPermissionService {
});
roleMenuCache = roleMenuCacheBuilder.build();
menuRoleCache = menuRoleCacheBuilder.build();
log.info("[init][初始化角色与菜单的关联数量为 {}]", roleMenuList.size());
log.info("[initLocalCache][初始化角色与菜单的关联数量为 {}]", roleMenuList.size());
}
@Override

74
src/main/java/cn/iocoder/dashboard/modules/system/service/permission/impl/SysRoleServiceImpl.java
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@@ -1,9 +1,11 @@
package cn.iocoder.dashboard.modules.system.service.permission.impl;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.CollectionUtil;
import cn.iocoder.dashboard.common.enums.CommonStatusEnum;
import cn.iocoder.dashboard.common.exception.util.ServiceExceptionUtil;
import cn.iocoder.dashboard.common.pojo.PageResult;
import cn.iocoder.dashboard.framework.mybatis.core.dataobject.BaseDO;
import cn.iocoder.dashboard.modules.system.controller.permission.vo.role.SysRoleCreateReqVO;
import cn.iocoder.dashboard.modules.system.controller.permission.vo.role.SysRoleExportReqVO;
import cn.iocoder.dashboard.modules.system.controller.permission.vo.role.SysRolePageReqVO;
@@ -13,14 +15,18 @@ import cn.iocoder.dashboard.modules.system.dal.mysql.dao.permission.SysRoleMappe
import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.permission.SysRoleDO;
import cn.iocoder.dashboard.modules.system.enums.permission.RoleCodeEnum;
import cn.iocoder.dashboard.modules.system.enums.permission.SysRoleTypeEnum;
import cn.iocoder.dashboard.modules.system.mq.producer.permission.SysRoleProducer;
import cn.iocoder.dashboard.modules.system.service.permission.SysPermissionService;
import cn.iocoder.dashboard.modules.system.service.permission.SysRoleService;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.google.common.collect.ImmutableMap;
import lombok.extern.slf4j.Slf4j;
import org.springframework.lang.Nullable;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.support.TransactionSynchronization;
import org.springframework.transaction.support.TransactionSynchronizationManager;
import org.springframework.util.StringUtils;
import javax.annotation.PostConstruct;
@@ -39,6 +45,12 @@ import static cn.iocoder.dashboard.modules.system.enums.SysErrorCodeConstants.*;
@Slf4j
public class SysRoleServiceImpl implements SysRoleService {
/**
* 定时执行 {@link #schedulePeriodicRefresh()} 的周期
* 因为已经通过 Redis Pub/Sub 机制，所以频率不需要高
*/
private static final long SCHEDULER_PERIOD = 5 * 60 * 1000L;
/**
* 角色缓存
* key：角色编号 {@link SysRoleDO#getId()}
@@ -46,6 +58,10 @@ public class SysRoleServiceImpl implements SysRoleService {
* 这里声明 volatile 修饰的原因是，每次刷新时，直接修改指向
*/
private volatile Map<Long, SysRoleDO> roleCache;
/**
* 缓存菜单的最大更新时间，用于后续的增量轮询，判断是否有更新
*/
private volatile Date maxUpdateTime;
@Resource
private SysPermissionService permissionService;
@@ -53,19 +69,54 @@ public class SysRoleServiceImpl implements SysRoleService {
@Resource
private SysRoleMapper roleMapper;
@Resource
private SysRoleProducer roleProducer;
/**
* 初始化 {@link #roleCache} 缓存
*/
@Override
@PostConstruct
public void init() {
// 从数据库中读取
List<SysRoleDO> roleDOList = roleMapper.selectList(null);
public void initLocalCache() {
// 获取菜单列表，如果有更新
List<SysRoleDO> roleList = this.loadRoleIfUpdate(maxUpdateTime);
if (CollUtil.isEmpty(roleList)) {
return;
}
// 写入缓存
ImmutableMap.Builder<Long, SysRoleDO> builder = ImmutableMap.builder();
roleDOList.forEach(sysRoleDO -> builder.put(sysRoleDO.getId(), sysRoleDO));
roleList.forEach(sysRoleDO -> builder.put(sysRoleDO.getId(), sysRoleDO));
roleCache = builder.build();
log.info("[init][初始化 Role 数量为 {}]", roleDOList.size());
assert roleList.size() > 0; // 断言，避免告警
maxUpdateTime = roleList.stream().max(Comparator.comparing(BaseDO::getUpdateTime)).get().getUpdateTime();
log.info("[initLocalCache][初始化 Role 数量为 {}]", roleList.size());
}
@Scheduled(fixedDelay = SCHEDULER_PERIOD, initialDelay = SCHEDULER_PERIOD)
public void schedulePeriodicRefresh() {
initLocalCache();
}
/**
* 如果菜单发生变化，从数据库中获取最新的全量菜单。
* 如果未发生变化，则返回空
*
* @param maxUpdateTime 当前菜单的最大更新时间
* @return 菜单列表
*/
private List<SysRoleDO> loadRoleIfUpdate(Date maxUpdateTime) {
// 第一步，判断是否要更新。
if (maxUpdateTime == null) { // 如果更新时间为空，说明 DB 一定有新数据
log.info("[loadRoleIfUpdate][首次加载全量菜单]");
} else { // 判断数据库中是否有更新的菜单
if (!roleMapper.selectExistsByUpdateTimeAfter(maxUpdateTime)) {
return null;
}
log.info("[loadRoleIfUpdate][增量加载全量菜单]");
}
// 第二步，如果有更新，则从数据库加载所有菜单
return roleMapper.selectList();
}
@Override
@@ -104,6 +155,8 @@ public class SysRoleServiceImpl implements SysRoleService {
role.setType(SysRoleTypeEnum.CUSTOM.getType());
role.setStatus(CommonStatusEnum.ENABLE.getStatus());
roleMapper.insert(role);
// 发送刷新消息
roleProducer.sendRoleRefreshMessage();
// 返回
return role.getId();
}
@@ -117,6 +170,8 @@ public class SysRoleServiceImpl implements SysRoleService {
// 更新到数据库
SysRoleDO updateObject = SysRoleConvert.INSTANCE.convert(reqVO);
roleMapper.updateById(updateObject);
// 发送刷新消息
roleProducer.sendRoleRefreshMessage();
}
@Override
@@ -128,6 +183,15 @@ public class SysRoleServiceImpl implements SysRoleService {
roleMapper.deleteById(id);
// 删除相关数据
permissionService.processRoleDeleted(id);
// 发送刷新消息. 注意，需要事务提交后，在进行发送刷新消息。不然 db 还未提交，结果缓存先刷新了
TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronization() {
@Override
public void afterCommit() {
roleProducer.sendRoleRefreshMessage();
}
});
}
@Override