/// <summary>
/// Loads the Handler Configuration
/// </summary>
/// <param name="context">HTTP Context</param>
/// <param name="basePath">Base Path for the Server</param>
/// <returns></returns>
protected override BaseSparqlServerConfiguration LoadConfig(HttpContext context, out string basePath)
{
// Check the Configuration File is specified
String configFile = context.Server.MapPath(ConfigurationManager.AppSettings["dotNetRDFConfig"]);
if (configFile == null)
{
throw new DotNetRdfConfigurationException("Unable to load Graph Handler Configuration as the Web.Config file does not specify a 'dotNetRDFConfig' AppSetting to specify the RDF configuration file to use");
}
IGraph g = WebConfigurationLoader.LoadConfigurationGraph(context, configFile);
// Then check there is configuration associated with the expected URI
INode objNode = WebConfigurationLoader.FindObject(g, context.Request.Url, out basePath);
this._cachePath = basePath;
if (objNode == null)
{
throw new DotNetRdfConfigurationException("Unable to load Graph Handler Configuration as the RDF configuration file does not have any configuration associated with the URI <dotnetrdf:" + context.Request.Path + "> as required");
}
// Is our Configuration already cached?
Object temp = context.Cache[basePath];
if (temp != null)
{
if (temp is BaseSparqlServerConfiguration)
{
basePath = basePath.Substring(0, basePath.Length - 1);
return((BaseSparqlServerConfiguration)temp);
}
else
{
context.Cache.Remove(basePath);
}
}
SparqlServerConfiguration config = new SparqlServerConfiguration(new WebContext(context), g, objNode);
// Finally cache the Configuration before returning it
if (config.CacheSliding)
{
context.Cache.Add(basePath, config, new System.Web.Caching.CacheDependency(configFile), System.Web.Caching.Cache.NoAbsoluteExpiration, new TimeSpan(0, config.CacheDuration, 0), System.Web.Caching.CacheItemPriority.Normal, null);
}
else
{
context.Cache.Add(basePath, config, new System.Web.Caching.CacheDependency(configFile), DateTime.Now.AddMinutes(config.CacheDuration), System.Web.Caching.Cache.NoSlidingExpiration, System.Web.Caching.CacheItemPriority.Normal, null);
}
basePath = basePath.Substring(0, basePath.Length - 1);
return(config);
}
/// <summary>
/// Loads the Handler Configuration
/// </summary>
/// <param name="context">HTTP Context</param>
/// <param name="basePath">Base Path of the Handler which this method will determine</param>
/// <returns></returns>
protected override BaseProtocolHandlerConfiguration LoadConfig(HttpContext context, out String basePath)
{
basePath = context.Request.Path;
//Is our Configuration already cached?
Object temp = context.Cache[context.Request.Path];
if (temp != null)
{
if (temp is BaseProtocolHandlerConfiguration)
{
return((BaseProtocolHandlerConfiguration)temp);
}
else
{
context.Cache.Remove(context.Request.Path);
}
}
//Check the Configuration File is specified
String configFile = context.Server.MapPath(ConfigurationManager.AppSettings["dotNetRDFConfig"]);
if (configFile == null)
{
throw new DotNetRdfConfigurationException("Unable to load Protocol Handler Configuration as the Web.Config file does not specify a 'dotNetRDFConfig' AppSetting to specify the RDF configuration file to use");
}
IGraph g = WebConfigurationLoader.LoadConfigurationGraph(context, configFile);
//Then check there is configuration associated with the expected URI
String objUri = "dotnetrdf:" + context.Request.Path;
INode objNode = g.GetUriNode(UriFactory.Create(objUri));
if (objNode == null)
{
throw new DotNetRdfConfigurationException("Unable to load Protocol Handler Configuration as the RDF configuration file does not have any configuration associated with the URI <dotnetrdf:" + context.Request.Path + "> as required");
}
ProtocolHandlerConfiguration config = new ProtocolHandlerConfiguration(context, g, objNode);
//Finally cache the Configuration before returning it
if (config.CacheSliding)
{
context.Cache.Add(context.Request.Path, config, new System.Web.Caching.CacheDependency(configFile), System.Web.Caching.Cache.NoAbsoluteExpiration, new TimeSpan(0, config.CacheDuration, 0), System.Web.Caching.CacheItemPriority.Normal, null);
}
else
{
context.Cache.Add(context.Request.Path, config, new System.Web.Caching.CacheDependency(configFile), DateTime.Now.AddMinutes(config.CacheDuration), System.Web.Caching.Cache.NoSlidingExpiration, System.Web.Caching.CacheItemPriority.Normal, null);
}
return(config);
}