/// <summary>
/// API called by external sync jobs
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
/*
*
* [Action(DoSyncTaskCOC.Action)]
*
*/
public void SyncCache(SyncData syncData)
{
var syncTask = SyncTaskFactory.CreateTask(syncData.TaskName);
if (syncTask != null)
{
syncTask.Sync(syncData);
}
}
/// <summary>
/// 缓存刷新
/// </summary>
/// <param name="syncDataItem">时间戳</param>
internal override void Sync(SyncData syncDataItem)
{
// 执行自身同步
SyncSelf(syncDataItem);
// 执行子任务同步
var subTasks = this.SubTasks;
if (subTasks != null && subTasks.Count > 0)
{
subTasks.ForEach(subTask => subTask.Sync(syncDataItem));
}
}
/// <summary>
/// 执行自身任务（取出对应缓存，比较时间戳，若时间戳已过期，则刷新缓存）
/// </summary>
/// <param name="syncDataItem"></param>
private void SyncSelf(SyncData syncDataItem)
{
string key = syncDataItem.Key;
string timestamp = syncDataItem.TimeStamp;
if (string.IsNullOrEmpty(timestamp))
{
// 如果时间戳为Null, 直接刷缓存
RefreshCachedItems(key);
return;
}
DateTime syncTime;
bool isTimestampValid = DateTime.TryParse(timestamp, out syncTime);
if (!isTimestampValid)
{
// 如果时间戳转换失败, 直接退出, 不刷缓存
return;
}
var cachedValues = GetCachedValues(key);
if (cachedValues != null && cachedValues.Count > 0)
{
foreach (var cachedValue in cachedValues)
{
if (null == cachedValue)
{
continue;
}
// 判断并刷新缓存
if (ShouldRefreshCache(cachedValue, syncTime))
{
RefreshCachedItems(key);
}
}
}
}
/// <summary> /// 缓存刷新 /// </summary> /// <param name="syncDataItem">时间戳</param> internal abstract void Sync(SyncData syncDataItem);
/// <summary> /// 执行具体任务 /// </summary> /// <param name="syncDataItem"></param> protected abstract void DoTask(SyncData syncDataItem);
