protected virtual async Task ProcessVersion(PersistenceRequestHolder <K, Tuple <K, string> > holder)
{
IResponseHolder result = null;
if (mCacheManager.IsActive)
{
result = await mCacheManager.VersionRead(mTransform, holder.Rq.Key);
}
if (result == null || !result.IsSuccess)
{
if (mTransform.Version == null)
{
//If we don't set a version maker then how can we return the version.
result = new PersistenceResponseHolder(PersistenceResponse.NotImplemented501)
{
IsSuccess = false
}
}
;
else
{
result = await InternalVersion(holder.Rq.Key, holder);
}
if (mCacheManager.IsActive && !mCacheManager.IsReadOnly && result.IsSuccess)
{
mCacheManager.WriteVersion(mTransform, holder.Rq.Key, result.VersionId);
}
}
ProcessOutputKey(holder.Rq, holder.Rs, result);
}
protected virtual async Task ProcessRead(PersistenceRequestHolder <K, E> holder)
{
IResponseHolder <E> result = null;
if (mCacheManager.IsActive && holder.Rq.Settings.UseCache)
{
result = await mCacheManager.Read(mTransform, holder.Rq.Key);
}
if (result == null || !result.IsSuccess)
{
result = await InternalRead(holder.Rq.Key, holder);
if (mCacheManager.IsActive && !mCacheManager.IsReadOnly && result.IsSuccess)
{
mCacheManager.Write(mTransform, result.Entity);
}
}
else
{
result.IsCacheHit = true;
}
ProcessOutputEntity(holder.Rq.Key, holder.Rq, holder.Rs, result);
}
/// <summary>
/// This method sets the entity and any associated metadata in to the response.
/// </summary>
/// <param name="key">The entity key.</param>
/// <param name="rq">The original request.</param>
/// <param name="rs">The outgoing response.</param>
/// <param name="holderResponse">The underlying storage response.</param>
protected virtual void ProcessOutputEntity(K key, PersistenceRepositoryHolder <K, E> rq, PersistenceRepositoryHolder <K, E> rs
, IResponseHolder holderResponse)
{
rs.ResponseCode = holderResponse.StatusCode;
if (holderResponse.IsSuccess)
{
ProcessOutputEntity(mTransform.PersistenceEntitySerializer.Deserializer(holderResponse.Content), rq, rs);
}
else
{
ProcessOutputError(key, holderResponse, rs);
}
}
/// <summary>
/// This method is used to format the response when the request is not successful.
/// </summary>
/// <param name="key">The entity key.</param>
/// <param name="holderResponse">The response.</param>
/// <param name="rs">The repository holder.</param>
protected virtual void ProcessOutputError(K key, IResponseHolder holderResponse, PersistenceRepositoryHolder <K, E> rs)
{
if (holderResponse.Ex != null && !rs.IsTimeout)
{
Logger.LogException($"Error in persistence {typeof (E).Name}-{key}", holderResponse.Ex);
}
else if (rs.ResponseCode != 404)
{
Logger.LogMessage(
rs.IsTimeout ? LoggingLevel.Warning : LoggingLevel.Info,
$"Error in persistence {typeof (E).Name}-{rs.ResponseCode}-{key}-{holderResponse.Ex?.ToString() ?? rs.ResponseMessage}", typeof(E).Name);
}
rs.IsTimeout = holderResponse.IsTimeout;
}
/// <summary>
/// This is the entity search.
/// </summary>
/// <param name="holder">The is the entity search data.</param>
/// <returns>This is an async task.</returns>
protected virtual async Task ProcessSearch(PersistenceRequestHolder <SearchRequest, SearchResponse> holder)
{
IResponseHolder <SearchResponse> result = null;
result = await InternalSearch(holder.Rq.Key, holder);
holder.Rs.Entity = result.Entity;
holder.Rs.Key = holder.Rq.Key;
//rs.Settings.VersionId = mTransform.Version?.EntityVersionAsString(rs.Entity);
//rs.KeyReference = new Tuple<string, string>(rs.Key.ToString(), rs.Settings.VersionId);
//holder.Rs.ResponseCode = (int)PersistenceResponse.NotImplemented501;
//holder.Rs.ResponseMessage = "Search is not implemented.";
}
/// <summary>
/// This method processes the common output method for key based operations such as delete and version.
/// </summary>
/// <param name="rq">The incoming request.</param>
/// <param name="rs">The outgoing response.</param>
/// <param name="holderResponse">The internal holder response.</param>
protected virtual void ProcessOutputKey(PersistenceRepositoryHolder <K, Tuple <K, string> > rq, PersistenceRepositoryHolder <K, Tuple <K, string> > rs
, IResponseHolder holderResponse)
{
rs.Key = rq.Key;
rs.KeyReference = rq.KeyReference;
rs.ResponseCode = holderResponse.StatusCode;
if (holderResponse.IsSuccess)
{
rs.Settings.VersionId = holderResponse.VersionId;
rs.Entity = new Tuple <K, string>(rs.Key, holderResponse.VersionId);
rs.KeyReference = new Tuple <string, string>(rs.Key == null ? null : rs.Key.ToString(), holderResponse.VersionId);
}
else
{
rs.IsTimeout = holderResponse.IsTimeout;
}
}
protected virtual async Task ProcessVersionByRef(PersistenceRequestHolder <K, Tuple <K, string> > holder)
{
IResponseHolder result = null;
if (mCacheManager.IsActive)
{
result = await mCacheManager.VersionRead(mTransform, holder.Rq.KeyReference);
}
if (result == null || !result.IsSuccess)
{
result = await InternalVersionByRef(holder.Rq.KeyReference, holder);
if (mCacheManager.IsActive && !mCacheManager.IsReadOnly && result.IsSuccess)
{
mCacheManager.WriteReference(mTransform, holder.Rq.KeyReference, holder.Rq.Key, result.VersionId);
}
}
else
{
holder.Rq.Key = mTransform.KeyDeserializer(result.Id); // Pass back the entities actual id in the key field
}
ProcessOutputKey(holder.Rq, holder.Rs, result);
}
/// <summary>
/// This method sets the entity and any associated metadata in to the response.
/// </summary>
/// <param name="key">The entity key.</param>
/// <param name="rq">The original request.</param>
/// <param name="rs">The outgoing response.</param>
/// <param name="holderResponse">The underlying storage response.</param>
protected virtual void ProcessOutputEntity(K key, PersistenceRepositoryHolder <K, E> rq, PersistenceRepositoryHolder <K, E> rs, IResponseHolder <E> holderResponse)
{
rs.ResponseCode = holderResponse.StatusCode;
if (holderResponse.IsSuccess)
{
ProcessOutputEntity(holderResponse.Entity, rq, rs);
}
else
{
ProcessOutputError(key, holderResponse, rs);
}
}