public static CommonCache GetInstance()
{
if (_instance == null)
{
_instance = new CommonCache();
}
return(_instance);
}
protected override void OnReceivedRequest(HttpRequest request)
{
// Show HTTP request content
Console.WriteLine(request);
// Process HTTP request methods
if (request.Method == "HEAD")
{
SendResponseAsync(Response.MakeHeadResponse());
}
else if (request.Method == "GET")
{
// Get the cache value
string cache;
if (CommonCache.GetInstance().GetCache(request.Url, out cache))
{
// Response with the cache value
SendResponseAsync(Response.MakeGetResponse(cache));
}
else
{
SendResponseAsync(Response.MakeErrorResponse("Required cache value was not found for the key: " + request.Url));
}
}
else if ((request.Method == "POST") || (request.Method == "PUT"))
{
// Set the cache value
CommonCache.GetInstance().SetCache(request.Url, request.Body);
// Response with the cache value
SendResponseAsync(Response.MakeOkResponse());
}
else if (request.Method == "DELETE")
{
// Delete the cache value
string cache;
if (CommonCache.GetInstance().DeleteCache(request.Url, out cache))
{
// Response with the cache value
SendResponseAsync(Response.MakeGetResponse(cache));
}
else
{
SendResponseAsync(Response.MakeErrorResponse("Deleted cache value was not found for the key: " + request.Url));
}
}
else if (request.Method == "OPTIONS")
{
SendResponseAsync(Response.MakeOptionsResponse());
}
else if (request.Method == "TRACE")
{
SendResponseAsync(Response.MakeTraceResponse(request.Cache));
}
else
{
SendResponseAsync(Response.MakeErrorResponse("Unsupported HTTP method: " + request.Method));
}
}
protected override void OnReceivedRequest(HttpRequest request)
{
// Show HTTP request content
Console.WriteLine(request);
// Process HTTP request methods
if (request.Method == "HEAD")
{
SendResponseAsync(Response.MakeHeadResponse());
}
else if (request.Method == "GET")
{
string key = request.Url;
// Decode the key value
key = Uri.UnescapeDataString(key);
key = key.Replace("/api/cache", "", StringComparison.InvariantCultureIgnoreCase);
key = key.Replace("?key=", "", StringComparison.InvariantCultureIgnoreCase);
if (string.IsNullOrEmpty(key))
{
// Response with all cache values
SendResponseAsync(Response.MakeGetResponse(CommonCache.GetInstance().GetAllCache(), "application/json; charset=UTF-8"));
}
// Get the cache value by the given key
else if (CommonCache.GetInstance().GetCacheValue(key, out var value))
{
// Response with the cache value
SendResponseAsync(Response.MakeGetResponse(value));
}
else
{
SendResponseAsync(Response.MakeErrorResponse(404, "Required cache value was not found for the key: " + key));
}
}
else if ((request.Method == "POST") || (request.Method == "PUT"))
{
string key = request.Url;
string value = request.Body;
// Decode the key value
key = Uri.UnescapeDataString(key);
key = key.Replace("/api/cache", "", StringComparison.InvariantCultureIgnoreCase);
key = key.Replace("?key=", "", StringComparison.InvariantCultureIgnoreCase);
// Put the cache value
CommonCache.GetInstance().PutCacheValue(key, value);
// Response with the cache value
SendResponseAsync(Response.MakeOkResponse());
}
else if (request.Method == "DELETE")
{
string key = request.Url;
// Decode the key value
key = Uri.UnescapeDataString(key);
key = key.Replace("/api/cache", "", StringComparison.InvariantCultureIgnoreCase);
key = key.Replace("?key=", "", StringComparison.InvariantCultureIgnoreCase);
// Delete the cache value
if (CommonCache.GetInstance().DeleteCacheValue(key, out var value))
{
// Response with the cache value
SendResponseAsync(Response.MakeGetResponse(value));
}
else
{
SendResponseAsync(Response.MakeErrorResponse(404, "Deleted cache value was not found for the key: " + key));
}
}
else if (request.Method == "OPTIONS")
{
SendResponseAsync(Response.MakeOptionsResponse());
}
else if (request.Method == "TRACE")
{
SendResponseAsync(Response.MakeTraceResponse(request.Cache));
}
else
{
SendResponseAsync(Response.MakeErrorResponse("Unsupported HTTP method: " + request.Method));
}
}
