/// <summary>
/// Removes a resource from the syndication data source.
/// </summary>
/// <param name="request">The request from the syndication data source for the resource to be removed.</param>
/// <param name="entry">the resource that is being deleted</param>
/// <returns><b>true</b> if the syndication resource was successfully deleted; otherwise, <b>false</b>.</returns>
public virtual bool DeleteEntry(SDataBaseRequest request, AtomEntry entry)
{
Guard.ArgumentNotNull(request, "request");
try
{
var url = request.ToString();
var eTag = entry != null?entry.GetSDataHttpETag() : null;
var batchItem = new SDataBatchRequestItem
{
Url = url,
Method = HttpMethod.Delete,
ETag = eTag
};
if (BatchProcess.Instance.AddToBatch(batchItem))
{
return(true);
}
var operation = new RequestOperation(HttpMethod.Delete)
{
ETag = eTag
};
var response = ExecuteRequest(url, operation, MediaType.AtomEntry, MediaType.Xml);
return(response.StatusCode == HttpStatusCode.OK);
}
catch (Exception ex)
{
throw new SDataClientException(ex.Message, ex);
}
}
/// <summary>
/// Reads resource information from the data source based on the URL and the ETag of the specified entry.
/// </summary>
/// <param name="request"></param>
/// <param name="entry"></param>
/// <returns></returns>
public virtual AtomEntry ReadEntry(SDataBaseRequest request, AtomEntry entry)
{
Guard.ArgumentNotNull(request, "request");
try
{
var requestUrl = request.ToString();
var eTag = entry != null?entry.GetSDataHttpETag() : null;
var batchItem = new SDataBatchRequestItem
{
Url = requestUrl,
Method = HttpMethod.Get,
ETag = eTag
};
if (BatchProcess.Instance.AddToBatch(batchItem))
{
return(null);
}
var operation = new RequestOperation(HttpMethod.Get)
{
ETag = eTag
};
var response = ExecuteRequest(requestUrl, operation, MediaType.AtomEntry, MediaType.Xml);
entry = (AtomEntry)response.Content;
if (!string.IsNullOrEmpty(response.ETag))
{
entry.SetSDataHttpETag(response.ETag);
}
return(entry);
}
catch (Exception ex)
{
throw new SDataClientException(ex.Message, ex);
}
}
private AtomEntry UpdateEntry(string url, AtomEntry entry)
{
Guard.ArgumentNotNull(entry, "entry");
try
{
var eTag = entry.GetSDataHttpETag();
var batchItem = new SDataBatchRequestItem
{
Url = url,
Method = HttpMethod.Put,
Entry = entry,
ETag = eTag
};
if (BatchProcess.Instance.AddToBatch(batchItem))
{
return(null);
}
var operation = new RequestOperation(HttpMethod.Put, entry)
{
ETag = eTag
};
var response = ExecuteRequest(url, operation, MediaType.AtomEntry, MediaType.Xml);
entry = (AtomEntry)response.Content;
if (!string.IsNullOrEmpty(response.ETag))
{
entry.SetSDataHttpETag(response.ETag);
}
return(entry);
}
catch (Exception ex)
{
throw new SDataClientException(ex.Message, ex);
}
}
/// <summary>
/// Updates information about a syndication resource in the data source.
/// </summary>
/// <param name="request">The url from the syndication data source for the resource to be updated.</param>
/// <param name="entry">
/// An object that implements the <see cref="ISyndicationResource"/> interface that represents the updated information for the resource.
/// </param>
public virtual AtomEntry UpdateEntry(SDataBaseRequest request, AtomEntry entry)
{
Guard.ArgumentNotNull(request, "request");
Guard.ArgumentNotNull(entry, "entry");
try
{
var url = request.ToString();
var eTag = entry.GetSDataHttpETag();
var batchItem = new SDataBatchRequestItem
{
Url = url,
Method = HttpMethod.Put,
Entry = entry,
ETag = eTag
};
if (BatchProcess.Instance.AddToBatch(batchItem))
{
return(null);
}
var operation = new RequestOperation(HttpMethod.Put, entry)
{
ETag = eTag
};
return(ExecuteEntryRequest(url, operation));
}
catch (SDataClientException)
{
throw;
}
catch (Exception ex)
{
throw new SDataClientException(ex.Message, ex);
}
}