/// <summary>
/// 处理事件。Event类型的命令是面向主题和状态码编程的。
/// </summary>
/// <returns></returns>
private static void HandleEvent(MessageContext context)
{
EventSourceType eventSourceType;
context.Command.EventSourceType.TryParse(out eventSourceType);
switch (eventSourceType)
{
case EventSourceType.Command:
{
#region 命令事件
// 如果是审计节点的审计事件
if (context.Command.EventSubjectCode.Equals(EventSubjectCode.StateCodeChanged_Audit) &&
(context.ClientAgent == context.Host.NodeHost.Nodes.ThisNode))
{
#region 审计节点事件
var localEvent = context.Ontology.MessageProvider.GetCommand(MessageTypeKind.LocalEvent,
context.Ontology, new Guid(context.Command.MessageId));
if (localEvent == null)
{
context.Result.UpdateStatus(Status.NotExist, "给定的MessageID标识的服务端事件不存在。");
return;
}
if (!Verb.Create.Equals(localEvent.Verb))
{
long total;
var localEvents = context.Ontology.MessageProvider.GetPlistCommands(MessageTypeKind.LocalEvent, context.Ontology, null, null, null, localEvent.LocalEntityId, 0, 1, "CreateOn", "asc", out total);
if (localEvents[0].Id != localEvent.Id)
{
context.Result.UpdateStatus(Status.InvalidCommandTicks, "请按照时间顺序审核命令");
return;
}
}
using (var act = new WfAct(context.Host, context, context.Ontology.MessageProvider, "审核完成"))
{
var ctx = new MessageContext(context.Host, localEvent);
if (context.Command.Status == (int)Status.AuditApproved)
{
localEvent.IsDumb = context.Command.IsDumb;
#region 执行
using (var sqlAct = new WfAct(context.Host, ctx, ctx.Ontology.EntityProvider, "执行命令"))
{
// 注意：执行的是本地事件，而不是请求事件
var actionCode = ctx.Command.Verb;
var r = ctx.Ontology.EntityProvider.ExecuteCommand(ctx.ToDbCommand());
context.Result.UpdateStatus(r.StateCode, r.Description);
ctx.Result.UpdateStatus(r.StateCode, r.Description);
if (r.IsSuccess)
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuted(context.Result));
var commandFactory = context.Host.NodeHost.MessageProducer;
using (var factoryAct = new WfAct(context.Host, ctx, commandFactory, "生产命令"))
{
var products = commandFactory.Produce(new MessageTuple(ctx, GetTuple(ctx)));
// 保存生产的待分发命令
if (products != null && products.Count != 0)
{
ctx.Ontology.MessageProvider.SaveCommands(ctx.Ontology, products.ToArray());
}
}
}
else
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuteFailing(context.Result));
}
}
#endregion
}
else
{
using (var cmdProviderAct = new WfAct(context.Host, ctx, ctx.Ontology.MessageProvider, "保存执行失败的命令"))
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuteFailing(context.Result));
}
context.Result.UpdateStatus(Status.AuditUnapproved, "审计未通过");
}
ctx.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.LocalEvent, ctx.Ontology, localEvent.Id, context.Command.IsDumb);
}
#endregion
}
else
{
var distrubutedCommand = context.Ontology.MessageProvider.GetCommand(MessageTypeKind.Distributed,
context.Ontology, new Guid(context.Command.MessageId));
if (distrubutedCommand == null)
{
context.Result.UpdateStatus(Status.NotExist, "给定的MessageID标识的服务端命令不存在。服务端认为没有向您的节点分发过MessageID为" + context.Command.MessageId + "的命令");
}
else
{
using (var act = new WfAct(context.Host, context, context.Ontology.MessageProvider, context.Result.Description))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToClientEvent(context.Result));
}
context.Result.UpdateStatus(Status.ReceiveOk, "接收成功");
}
}
break;
#endregion
}
case EventSourceType.Entity:
{
#region 实体事件
context.Result.UpdateStatus(Status.Nonsupport, "暂不支持客户端实体事件");
break;
#endregion
}
default:
context.Exception = new GeneralException("意外的事件源类型");
throw context.Exception;
}
}
/// <summary>
/// 处理事件。Event类型的命令是面向主题和状态码编程的。
/// </summary>
/// <returns></returns>
private static void HandleEvent(MessageContext context)
{
EventSourceType eventSourceType;
context.Command.EventSourceType.TryParse(out eventSourceType);
switch (eventSourceType)
{
case EventSourceType.Command:
{
#region 命令事件
// 如果是审计节点的审计事件
if (context.Command.EventSubjectCode.Equals(EventSubjectCode.StateCodeChanged_Audit)
&& (context.ClientAgent == context.Host.NodeHost.Nodes.ThisNode))
{
#region 审计节点事件
var localEvent = context.Ontology.MessageProvider.GetCommand(MessageTypeKind.LocalEvent,
context.Ontology, new Guid(context.Command.MessageId));
if (localEvent == null)
{
context.Result.UpdateStatus(Status.NotExist, "给定的MessageID标识的服务端事件不存在。");
return;
}
if (!Verb.Create.Equals(localEvent.Verb))
{
long total;
var localEvents = context.Ontology.MessageProvider.GetPlistCommands(MessageTypeKind.LocalEvent, context.Ontology, null, null, null, localEvent.LocalEntityId, 0, 1, "CreateOn", "asc", out total);
if (localEvents[0].Id != localEvent.Id)
{
context.Result.UpdateStatus(Status.InvalidCommandTicks, "请按照时间顺序审核命令");
return;
}
}
using (var act = new WfAct(context.Host, context, context.Ontology.MessageProvider, "审核完成"))
{
var ctx = new MessageContext(context.Host, localEvent);
if (context.Command.Status == (int)Status.AuditApproved)
{
localEvent.IsDumb = context.Command.IsDumb;
#region 执行
using (var sqlAct = new WfAct(context.Host, ctx, ctx.Ontology.EntityProvider, "执行命令"))
{
// 注意：执行的是本地事件，而不是请求事件
var actionCode = ctx.Command.Verb;
var r = ctx.Ontology.EntityProvider.ExecuteCommand(ctx.ToDbCommand());
context.Result.UpdateStatus(r.StateCode, r.Description);
ctx.Result.UpdateStatus(r.StateCode, r.Description);
if (r.IsSuccess)
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuted(context.Result));
var commandFactory = context.Host.NodeHost.MessageProducer;
using (var factoryAct = new WfAct(context.Host, ctx, commandFactory, "生产命令"))
{
var products = commandFactory.Produce(new MessageTuple(ctx, GetTuple(ctx)));
// 保存生产的待分发命令
if (products != null && products.Count != 0)
{
ctx.Ontology.MessageProvider.SaveCommands(ctx.Ontology, products.ToArray());
}
}
}
else
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuteFailing(context.Result));
}
}
#endregion
}
else
{
using (var cmdProviderAct = new WfAct(context.Host, ctx, ctx.Ontology.MessageProvider, "保存执行失败的命令"))
{
ctx.Ontology.MessageProvider.SaveCommand(ctx.Ontology, ctx.Command.ToExecuteFailing(context.Result));
}
context.Result.UpdateStatus(Status.AuditUnapproved, "审计未通过");
}
ctx.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.LocalEvent, ctx.Ontology, localEvent.Id, context.Command.IsDumb);
}
#endregion
}
else
{
var distrubutedCommand = context.Ontology.MessageProvider.GetCommand(MessageTypeKind.Distributed,
context.Ontology, new Guid(context.Command.MessageId));
if (distrubutedCommand == null)
{
context.Result.UpdateStatus(Status.NotExist, "给定的MessageID标识的服务端命令不存在。服务端认为没有向您的节点分发过MessageID为" + context.Command.MessageId + "的命令");
}
else
{
using (var act = new WfAct(context.Host, context, context.Ontology.MessageProvider, context.Result.Description))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToClientEvent(context.Result));
}
context.Result.UpdateStatus(Status.ReceiveOk, "接收成功");
}
}
break;
#endregion
}
case EventSourceType.Entity:
{
#region 实体事件
context.Result.UpdateStatus(Status.Nonsupport, "暂不支持客户端实体事件");
break;
#endregion
}
default:
context.Exception = new AnycmdException("意外的事件源类型");
throw context.Exception;
}
}
/// <summary>
/// 执行。Action类型的命令是立即执行的。
/// <remarks>
/// 该执行不会从成功接收的命令表中删除已执行的记录。
/// </remarks>
/// </summary>
/// <exception cref="GeneralException">
/// 当当前命令不是成功接收的命令时或者当前命令的动作码是get或head时引发
/// </exception>
/// <returns></returns>
private static void HandleAction(MessageContext context)
{
if (context.NeedAudit)
{
PublishAuditEvent(context);
return;
}
context.Result.UpdateStatus(Status.ExecuteOk, "执行成功");
if (Verb.Get.Equals(context.Command.Verb) ||
Verb.Head.Equals(context.Command.Verb))
{
return;
}
#region 执行
using (var act = new WfAct(context.Host, context, context.Ontology.EntityProvider, context.Ontology.EntityProvider.Description))
{
using (var sqlAct = new WfAct(context.Host, context, context.Ontology.EntityProvider, "执行命令"))
{
Verb actionCode = context.Command.Verb;
ProcessResult r = context.Ontology.EntityProvider.ExecuteCommand(context.ToDbCommand());
context.Result.UpdateStatus(r.StateCode, r.Description);
// 执行成功
if (r.IsSuccess)
{
using (var cmdProviderAct = new WfAct(context.Host, context, context.Ontology.MessageProvider, "保存成功执行的命令和由于命令执行而生产的待分发命令"))
{
#region 如果是正在接收的命令
if (!(context.Command is IEntity <Guid>))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuted(context.Result));
}
#endregion
#region 如果是以前接收的命令
else if (context.Command is IEntity <Guid> )
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuted(context.Result));
context.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.Received, context.Ontology, context.Command.Id, context.Command.IsDumb);
}
#endregion
#region 建造待分发命令
var commandFactory = context.Host.NodeHost.MessageProducer;
using (var factoryAct = new WfAct(context.Host, context, commandFactory, "命令工厂建造待分发命令"))
{
var products = commandFactory.Produce(new MessageTuple(context, GetTuple(context)));
// 保存生产的待分发命令
if (products != null && products.Count != 0)
{
context.Ontology.MessageProvider.SaveCommands(context.Ontology, products.ToArray());
}
}
#endregion
}
}
// 执行失败
else
{
using (var cmdProviderAct = new WfAct(context.Host, context, context.Ontology.MessageProvider, "保存执行失败的命令"))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuteFailing(context.Result));
if (context.Command is IEntity <Guid> )
{
context.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.Received, context.Ontology, context.Command.Id, context.Command.IsDumb);
}
}
}
}
}
#endregion
}
/// <summary>
/// 执行。Action类型的命令是立即执行的。
/// <remarks>
/// 该执行不会从成功接收的命令表中删除已执行的记录。
/// </remarks>
/// </summary>
/// <exception cref="AnycmdException">
/// 当当前命令不是成功接收的命令时或者当前命令的动作码是get或head时引发
/// </exception>
/// <returns></returns>
private static void HandleAction(MessageContext context)
{
if (context.NeedAudit)
{
PublishAuditEvent(context);
return;
}
context.Result.UpdateStatus(Status.ExecuteOk, "执行成功");
if (Verb.Get.Equals(context.Command.Verb)
|| Verb.Head.Equals(context.Command.Verb))
{
return;
}
#region 执行
using (var act = new WfAct(context.Host, context, context.Ontology.EntityProvider, context.Ontology.EntityProvider.Description))
{
using (var sqlAct = new WfAct(context.Host, context, context.Ontology.EntityProvider, "执行命令"))
{
Verb actionCode = context.Command.Verb;
ProcessResult r = context.Ontology.EntityProvider.ExecuteCommand(context.ToDbCommand());
context.Result.UpdateStatus(r.StateCode, r.Description);
// 执行成功
if (r.IsSuccess)
{
using (var cmdProviderAct = new WfAct(context.Host, context, context.Ontology.MessageProvider, "保存成功执行的命令和由于命令执行而生产的待分发命令"))
{
#region 如果是正在接收的命令
if (!(context.Command is IEntity))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuted(context.Result));
}
#endregion
#region 如果是以前接收的命令
else if (context.Command is IEntity)
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuted(context.Result));
context.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.Received, context.Ontology, context.Command.Id, context.Command.IsDumb);
}
#endregion
#region 建造待分发命令
var commandFactory = context.Host.NodeHost.MessageProducer;
using (var factoryAct = new WfAct(context.Host, context, commandFactory, "命令工厂建造待分发命令"))
{
var products = commandFactory.Produce(new MessageTuple(context, GetTuple(context)));
// 保存生产的待分发命令
if (products != null && products.Count != 0)
{
context.Ontology.MessageProvider.SaveCommands(context.Ontology, products.ToArray());
}
}
#endregion
}
}
// 执行失败
else
{
using (var cmdProviderAct = new WfAct(context.Host, context, context.Ontology.MessageProvider, "保存执行失败的命令"))
{
context.Ontology.MessageProvider.SaveCommand(context.Ontology, context.Command.ToExecuteFailing(context.Result));
if (context.Command is IEntity)
{
context.Ontology.MessageProvider.DeleteCommand(MessageTypeKind.Received, context.Ontology, context.Command.Id, context.Command.IsDumb);
}
}
}
}
}
#endregion
}