/// <summary>
/// 因为是启动的事件，而且资源修改与发布事件，在这个系统内通过事件总线发布没多大意义（但在webservice这些设定中就有意义了）
/// </summary>
/// <param name="command"></param>
/// <param name="communication"></param>
public ICommandHandlerResult Execute(ICommandContext context, InitResourceCommand command)
{
if (command.Resources == null)
{
return(context.CreateResult(CommandHandlerStatus.NothingChanged));
}
var list = resourceRepository.RebuildRoots();
if (list.IsNullOrEmpty())
{
//第一次初始化，实际上要不要将部门与组的权限一起删除呢？因为有可能是在运营过程中删除的
var roots = new List <ResourceAggregateRoot>(command.Resources.Count());
foreach (var r in command.Resources)
{
var cmd = new CreateResourceCommand(r.AggregateId)
{
Resource = new ActionResourceDescriptor()
{
ActionDescn = r.ActionDescn,
GroupSort = r.GroupSort,
AggregateId = r.AggregateId
}
};
var root = context.GetAggregateRoot(cmd.AggregateId, () => ResourceAggregateRoot.Register(context, cmd));
if (root.CanCommit())
{
roots.Add(root);
}
}
//保存权限
this.resourceRepository.Save(roots);
return(context.CreateResult(CommandHandlerStatus.Success));
}
//表明这些是新增的，在新加的记录中删除已经存在的
var news = command.Resources.ToList();
news.RemoveAll(n => list.Any(o => o.AggregateId == n.AggregateId));
//表明这些是已经存在，在已经存在的记录中删除不是新的记录中
var deletes = list.ToList();
deletes.RemoveAll(n => command.Resources.Any(o => o.AggregateId == n.AggregateId));
//原来那些已经存在的
var exists = list.ToList().FindAll(n => command.Resources.Any(o => o.AggregateId == n.AggregateId));
if (deletes != null && deletes.Count > 0)
{
var targets = new List <ResourceAggregateRoot>(deletes.Count);
foreach (var r in deletes)
{
r.Remove(context);
if (r.CanCommit())
{
targets.Add(r);
}
}
this.resourceRepository.Delete(targets);
this.groupResourceRepository.RemoveNotExistsGroupResource(targets);
this.departmentResourceRepository.RemoveNotExistsDepartmentResource(targets);
}
if (news != null && news.Count > 0)
{
var targets = new List <ResourceAggregateRoot>(news.Count);
foreach (var r in news)
{
var cmd = new CreateResourceCommand(r.AggregateId)
{
Resource = new ActionResourceDescriptor()
{
AggregateId = r.AggregateId, ActionDescn = r.ActionDescn, GroupSort = r.GroupSort
}
};
var root = ResourceAggregateRoot.Register(context, cmd);
if (root.CanCommit())
{
targets.Add(root);
}
}
this.resourceRepository.Save(targets);
}
if (exists != null && exists.Count > 0)
{
var targets = new List <ResourceAggregateRoot>(exists.Count);
foreach (var r in exists)
{
var res = command.Resources.FirstOrDefault(ta => ta.AggregateId == r.AggregateId);
r.ChangeInfo(context, res.ActionDescn, res.GroupSort);
if (r.CanCommit())
{
targets.Add(r);
}
}
if (targets.Any())
{
resourceRepository.Change(targets);
}
}
return(context.CreateResult(CommandHandlerStatus.Success));
}
