/// <summary>
/// Hook for storing data members by calling the various AddMember() overloads.
/// </summary>
/// <param name="builder">The Jsonizer instance to use for storing data members.</param>
public void Jsonize(Jsonizer builder)
{
builder.AddMember("cdrid", CDRID.ToString(), true);
builder.AddMember("dictionary", Dictionary.ToString(), true);
builder.AddMember("language", Language.ToString(), true);
builder.AddMember("audience", Audience.ToString(), true);
}
/// <summary>
/// Called by an implementation of IJsonizable to store a data member containing an array
/// of objects, each of which implements IJsonizable.
/// </summary>
/// <param name="name">The object member's name</param>
/// <param name="item">The object to store</param>
/// <param name="isFinal">Is this the last member the caller will add?</param>
internal void AddMember(string name, IJsonizable[] itemArray, bool isFinal)
{
builder.AppendFormat("\"{0}\": ", name);
List <Jsonizer> subJsonizers = new List <Jsonizer>(itemArray.Length);
foreach (IJsonizable item in itemArray)
{
Jsonizer subItem = new Jsonizer(item);
subJsonizers.Add(subItem);
}
// Output a possibly empty array of IJsonizable objects.
int length = subJsonizers.Count;
int lastIndex = length - 1;
builder.Append("[");
for (int i = 0; i < itemArray.Length; i++)
{
builder.Append(subJsonizers[i].ToJsonString());
if (i != lastIndex)
{
builder.Append(",");
}
}
builder.Append("]");
if (!isFinal)
{
builder.Append(",");
}
}
/// <summary>
/// Called by an implementation of IJsonizable to store a data member which implements IJsonizable.
/// </summary>
/// <param name="name">The object member's name</param>
/// <param name="item">The object to store</param>
/// <param name="isFinal">Is this the last member the caller will add?</param>
internal void AddMember(string name, IJsonizable item, bool isFinal)
{
Jsonizer subJsonizer = new Jsonizer(item);
builder.AppendFormat("\"{0}\": {1}", name, subJsonizer.ToJsonString());
if (!isFinal)
{
builder.Append(",");
}
}
/// <summary>
/// Entry point for handling the HTTP request. ProcessRequest manages the process of
/// determining which method was requested, invoking it, and returning a JSON response.
/// Part of IHttpHandler
/// </summary>
/// <param name="context">Object containing the details of current HTTP request and response.</param>
public void ProcessRequest(HttpContext context)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
try
{
// Get the particular method being invoked.
ApiMethodType method = ParseApiMethod(request);
// Get object for invoking the specific dictionary method.
Invoker invoker = Invoker.Create(method, request);
// Invoke the requested dictionary method.
IJsonizable result = invoker.Invoke();
// Put together the JSON response.
Jsonizer json = new Jsonizer(result);
response.ContentType = "application/json";
response.Write(json.ToJsonString());
}
// There was something wrong with the request that prevented us from
// being able to invoke a method.
catch (HttpParseException ex)
{
response.Status = ex.Message;
response.StatusCode = 400;
}
// Something went wrong in our code.
catch (Exception ex)
{
log.ErrorFormat(errorProcessFormat, ex, request.RawUrl);
response.StatusDescription = "Error processing dictionary request.";
response.StatusCode = 500;
}
}
