public IEnumerable <DataItem> Update(IEnumerable items)
{
Dictionary <string, object> dic = new Dictionary <string, object>();
foreach (var item in items)
{
string key = Metadata.GetCacheKey(item);
dic[key] = item;
}
List <DataItem> newItems = new List <DataItem>();
foreach (var data in Datas)
{
object di;
if (dic.TryGetValue(data.Key, out di))
{
data.Loaded = true;
data.Data = di;
newItems.Add(data);
}
}
return(newItems);
}
public void Process(IInvocation invocation, ClassDefineMetadata metadata)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
if (metadata.IsCacheable)
{
IEnumerable ids = (IEnumerable)invocation.Arguments[1];
var cache = RepositoryFramework.GetCacher(metadata);
var idKeys = ids.Cast <object>().Distinct().Select(o => new IdKey(o, metadata.GetCacheKeyById(o)));
//访问缓存并获取不在缓存中的 CacheKey
IEnumerable <string> missing;
//var cacheItems = cache.GetBatch<CacheData>(idKeys.Select(o => o.Key), out missing).Select(o => o.Convert(metadata.EntityType)).ToList();
var cacheItems = cache.GetBatch(metadata.EntityType, idKeys.Select(o => o.Key), out missing).Cast <object>().ToList();
if (missing.Count() > 0)
{
var missIds = missing.Select(o => idKeys.First(ik => ik.Key == o).Id);
invocation.SetArgumentValue(1, missIds);
using (MonitorContext.Repository(invocation.Method))
invocation.Proceed();
var sourceItems = ((IEnumerable)invocation.ReturnValue).Cast <object>();
cacheItems.AddRange(sourceItems);
if (sourceItems.Count() > 0)
{
//加入缓存
cache.SetBatch(sourceItems.Select(o => new CacheItem <object>(metadata.GetCacheKey(o), metadata.CloneEntity(o))), 1200);
}
else
{
if (ProfilerContext.Current.Enabled)
{
ProfilerContext.Current.Trace("platform", String.Format("missing get list for null\r\n{0}", String.Join(",", missing)));
}
}
}
else
{
using (MonitorContext.Repository(invocation.Method, true))
{
}
}
var ta = TypeAccessor.GetAccessor(metadata.EntityType);
var idGetter = ta.GetPropertyGetter(metadata.IdMember.Name);
//按ID排序并进行类型转化
invocation.ReturnValue = cacheItems
.OrderBy(entity => idGetter(entity), ids.Cast <object>())
.Cast(metadata.EntityType);
//按ID排序并进行类型转化
invocation.ReturnValue = cacheItems
.OrderBy(entity => idGetter(entity), ids.Cast <object>())
.Cast(metadata.EntityType);
}
else
{
using (MonitorContext.Repository(invocation.Method))
invocation.Proceed();
}
}