/// <summary>
/// 初始化作业最优先执行
/// </summary>
/// <param name="p"></param>
/// <param name="d"></param>
protected virtual void Init(FlowParameter p, FlowData d)
{
_p = p;
_d = d;
lock (lockobj)
{
if (_dic == null)
{
if (HttpRuntime.Cache["flow.flowcontrols"] != null)
{
_dic = (ConcurrentDictionary <string, Type>)HttpRuntime.Cache["flow.flowcontrols"];
}
else
{
_dic = new ConcurrentDictionary <string, Type>();
Assembly asm = Assembly.Load(GlobalCommon.FlowCommon.FlowDefineAssemblyPath);
Type[] ts = asm.GetTypes();
foreach (Type t in ts)
{
if (t.IsSubclassOf(typeof(FlowBaseDefine)) && !t.IsAbstract && !t.IsInterface)
{
FlowBaseDefine l = (FlowBaseDefine)Activator.CreateInstance(t, true);
string key = l.FlowName.ToUpper() + "." + l.Version.ToString();
if (_dic.ContainsKey(key))
{
throw new DuplicateFlowInstanceException(string.Format("Duplicate flow-instance's Name-Version,pleas ensure flow-instance:[{0}-{1}] unique!", l.FlowName.ToUpper(), l.Version.ToString()));
}
else
{
_dic.TryAdd(key, t);
}
}
}
//写入缓存
HttpRuntime.Cache.Insert("flow.flowcontrols", _dic, null, Cache.NoAbsoluteExpiration, TimeSpan.FromHours(12));
}
}
if (_dicinstance == null)
{
if (HttpRuntime.Cache["flow.flowinstances"] != null)
{
_dicinstance = (ConcurrentDictionary <string, FlowBaseDefine>)HttpRuntime.Cache["flow.flowinstances"];
}
else
{
_dicinstance = new ConcurrentDictionary <string, FlowBaseDefine>();
HttpRuntime.Cache.Insert("flow.flowinstances", _dicinstance, null, Cache.NoAbsoluteExpiration, TimeSpan.FromHours(12));
}
}
}
}
private FlowBaseDefine LoadFlowDefine(FlowParameter p, FlowData d)
{
FlowBaseDefine rtn = null;
var key = "";
if (d.CurrentInfo != null && d.CurrentInfo.FlowState != FlowStateType.None)
{
key = p.FlowName.ToUpper() + "." + d.CurrentInfo.FlowVersion.ToString();
}
else
{
var latestver = GetLatestVersionBy(p.FlowName);
key = p.FlowName.ToUpper() + "." + latestver;
if (d.CurrentInfo == null)
{
d.CurrentInfo = new FlowInstanceInfo();
}
d.CurrentInfo.FlowName = p.FlowName;
d.CurrentInfo.FlowVersion = latestver;
d.CurrentInfo.InstanceID = p.FlowInstanceID;
d.CurrentInfo.FlowState = FlowStateType.Ready;
}
//获取的实例不为空或无效状态，则继续流程运行，否则创建最新的流程
if (_dic.ContainsKey(key))
{
var typekey = p.FlowName.ToUpper() + "." + d.CurrentInfo.FlowVersion.ToString();
var instancekey = p.FlowName.ToUpper() + "." + d.CurrentInfo.FlowVersion.ToString() + "." + p.FlowInstanceID;
if (_dicinstance.ContainsKey(instancekey))
{
rtn = _dicinstance[instancekey];
}
else
{
rtn = (FlowBaseDefine)Activator.CreateInstance(_dic[typekey], true);
if (!_dicinstance.TryAdd(instancekey, rtn))
{
return(LoadFlowDefine(p, d));
}
}
}
else
{
throw new InvalidFlowException(string.Format("Not found the flow-instance named [{0}-{1}]!", p.FlowName.ToUpper(), d.CurrentInfo.FlowVersion.ToString()));
}
return(rtn);
}
