/// <summary>
/// Creates a new store based on the given template
/// </summary>
/// <param name="template">Template</param>
/// <param name="callback">Callback</param>
/// <param name="state">State to pass to the callback</param>
/// <remarks>
/// <para>
/// Template must inherit from <see cref="BaseSesameTemplate"/>
/// </para>
/// </remarks>
public virtual void CreateStore(IStoreTemplate template, AsyncStorageCallback callback, object state)
{
if (template is BaseSesameTemplate)
{
// First we need to store the template as a new context in the SYSTEM repository
Dictionary <String, String> createParams = new Dictionary <string, string>();
BaseSesameTemplate sesameTemplate = (BaseSesameTemplate)template;
if (template.Validate().Any())
{
callback(this, new AsyncStorageCallbackArgs(AsyncStorageOperation.CreateStore, template.ID, new RdfStorageException("Template is not valid, call Validate() on the template to see the list of errors")), state);
return;
}
IGraph g = sesameTemplate.GetTemplateGraph();
createParams.Add("context", sesameTemplate.ContextNode.ToString());
HttpWebRequest request = this.CreateRequest(this._repositoriesPrefix + SesameServer.SystemRepositoryID + "/statements", "*/*", "POST", createParams);
request.ContentType = MimeTypesHelper.NTriples[0];
NTriplesWriter ntwriter = new NTriplesWriter();
this.EnsureSystemConnection();
this._sysConnection.SaveGraphAsync(request, ntwriter, g, (sender, args, st) =>
{
if (args.WasSuccessful)
{
// Then we need to declare that said Context is of type rep:RepositoryContext
Triple repoType = new Triple(sesameTemplate.ContextNode, g.CreateUriNode("rdf:type"), g.CreateUriNode("rep:RepositoryContext"));
this._sysConnection.UpdateGraph(String.Empty, repoType.AsEnumerable(), null, (sender2, args2, st2) =>
{
if (args.WasSuccessful)
{
callback(this, new AsyncStorageCallbackArgs(AsyncStorageOperation.CreateStore, template.ID, template), state);
}
else
{
callback(this, new AsyncStorageCallbackArgs(AsyncStorageOperation.CreateStore, template.ID, StorageHelper.HandleError(args.Error, "creating a new Store in")), state);
}
}, st);
}
else
{
callback(this, new AsyncStorageCallbackArgs(AsyncStorageOperation.CreateStore, template.ID, template, StorageHelper.HandleError(args.Error, "creating a new Store in")), state);
}
}, state);
}
else
{
callback(this, new AsyncStorageCallbackArgs(AsyncStorageOperation.CreateStore, template.ID, template, new RdfStorageException("Invalid template, templates must derive from BaseSesameTemplate")), state);
}
}
/// <summary>
/// Creates a new Store based on the given template
/// </summary>
/// <param name="template">Template</param>
/// <returns></returns>
/// <remarks>
/// <para>
/// Templates must inherit from <see cref="BaseSesameTemplate"/>
/// </para>
/// </remarks>
public virtual bool CreateStore(IStoreTemplate template)
{
if (template is BaseSesameTemplate)
{
try
{
Dictionary <String, String> createParams = new Dictionary <string, string>();
BaseSesameTemplate sesameTemplate = (BaseSesameTemplate)template;
if (template.Validate().Any())
{
throw new RdfStorageException("Template is not valid, call Validate() on the template to see the list of errors");
}
IGraph g = sesameTemplate.GetTemplateGraph();
// Firstly we need to save the Repository Template as a new Context to Sesame
createParams.Add("context", sesameTemplate.ContextNode.ToString());
HttpWebRequest request = this.CreateRequest(this._repositoriesPrefix + SesameServer.SystemRepositoryID + "/statements", "*/*", "POST", createParams);
request.ContentType = MimeTypesHelper.NTriples[0];
NTriplesWriter ntwriter = new NTriplesWriter();
ntwriter.Save(g, new StreamWriter(request.GetRequestStream()));
Tools.HttpDebugRequest(request);
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Tools.HttpDebugResponse(response);
// If we get then it was OK
response.Close();
}
// Then we need to declare that said Context is of type rep:RepositoryContext
Triple repoType = new Triple(sesameTemplate.ContextNode, g.CreateUriNode("rdf:type"), g.CreateUriNode("rep:RepositoryContext"));
this.EnsureSystemConnection();
this._sysConnection.UpdateGraph(String.Empty, repoType.AsEnumerable(), null);
return(true);
}
catch (WebException webEx)
{
throw StorageHelper.HandleHttpError(webEx, "creating a new Store in");
}
}
else
{
throw new RdfStorageException("Invalid template, templates must derive from BaseSesameTemplate");
}
}
