public virtual ServiceClass GetClass()
{
if (_class == null)
_class = JsonRpcServices.GetClassFromType(GetType());
return _class;
}
public static void Generate(ServiceClass service, Uri url, TextWriter writer)
{
if (service == null) throw new ArgumentNullException("service");
if (url == null) throw new ArgumentNullException("url");
if (writer == null) throw new ArgumentNullException("writer");
Version1(service, url, new IndentedTextWriter(writer));
}
private void WriteClass(IndentedTextWriter writer, ServiceClass serviceClass)
{
writer.Write("class ");
writer.Write(serviceClass.Name);
writer.WriteLine(":");
writer.Indent++;
writer.Write(_docQuotes);
writer.Indent--;
if (serviceClass.Description.Length > 0)
{
writer.WriteLine(serviceClass.Description);
writer.WriteLine();
}
writer.WriteLine("This Python class was automatically generated by");
writer.WriteLine(GetType().AssemblyQualifiedName);
DateTime now = DateTime.Now;
writer.Write("on ");
writer.Write(now.ToLongDateString());
writer.Write(" at ");
writer.Write(now.ToLongTimeString());
writer.Write(" (");
TimeZone timeZone = TimeZone.CurrentTimeZone;
writer.Write(timeZone.IsDaylightSavingTime(now) ?
timeZone.DaylightName : timeZone.StandardName);
writer.WriteLine(")");
writer.WriteLine(_docQuotes);
writer.Indent++;
Uri url = new Uri(Request.Url.GetLeftPart(UriPartial.Path));
writer.WriteLine(@"def __init__(self, url = '" + url + @"'):
self.url = url
self.__id = 0");
writer.WriteLine();
}
internal Method(MethodBuilder methodBuilder, ServiceClass clazz)
{
Debug.Assert(methodBuilder != null);
Debug.Assert(clazz != null);
_name = methodBuilder.Name;
_internalName = Mask.EmptyString(methodBuilder.InternalName, methodBuilder.Name);
_resultType = methodBuilder.ResultType;
_description = methodBuilder.Description;
_handler = methodBuilder.Handler;
_idempotent = methodBuilder.Idempotent;
_attributes = methodBuilder.CustomAttributes;
_class = clazz;
//
// Set up parameters and their names.
//
ICollection parameterBuilders = methodBuilder.Parameters;
_parameters = new Parameter[parameterBuilders.Count];
_parameterNames = new string[parameterBuilders.Count];
foreach (ParameterBuilder parameterBuilder in parameterBuilders)
{
Parameter parameter = new Parameter(parameterBuilder, this);
int position = parameter.Position;
_parameters[position] = parameter;
_parameterNames[position] = parameter.Name;
}
//
// Keep a sorted list of parameters and their names so we can
// do fast look ups using binary search.
//
_sortedParameters = (Parameter[])_parameters.Clone();
InvariantStringArray.Sort(_parameterNames, _sortedParameters);
}
internal Method(MethodBuilder methodBuilder, ServiceClass clazz)
{
Debug.Assert(methodBuilder != null);
Debug.Assert(clazz != null);
_name = methodBuilder.Name;
_internalName = Mask.EmptyString(methodBuilder.InternalName, methodBuilder.Name);
_resultType = methodBuilder.ResultType;
_description = methodBuilder.Description;
_handler = methodBuilder.Handler;
_idempotent = methodBuilder.Idempotent;
_attributes = DeepCopy(methodBuilder.GetCustomAttributes());
_class = clazz;
//
// Set up parameters and their names.
//
ICollection parameterBuilders = methodBuilder.Parameters;
_parameters = new Parameter[parameterBuilders.Count];
_parameterNames = new string[parameterBuilders.Count];
foreach (ParameterBuilder parameterBuilder in parameterBuilders)
{
Parameter parameter = new Parameter(parameterBuilder, this);
int position = parameter.Position;
_parameters[position] = parameter;
_parameterNames[position] = parameter.Name;
}
//
// Keep a sorted list of parameters and their names so we can
// do fast look ups using binary search.
//
_sortedParameters = (Parameter[]) _parameters.Clone();
InvariantStringArray.Sort(_parameterNames, _sortedParameters);
}
private static void Version1(ServiceClass service, Uri url, IndentedTextWriter writer)
{
Debug.Assert(service != null);
Debug.Assert(url!= null);
Debug.Assert(!url.IsFile);
Debug.Assert(writer != null);
writer.Write("function ");
writer.Write(service.Name);
writer.WriteLine("(url)");
writer.WriteLine("{");
writer.Indent++;
writer.WriteLine("var self = this;");
Method[] methods = service.GetMethods();
string[] methodNames = new string[methods.Length];
bool[] idempotents = new bool[methods.Length];
for (int i = 0; i < methods.Length; i++)
{
methodNames[i] = methods[i].Name;
idempotents[i] = methods[i].Idempotent;
}
writer.Write("var m = ");
JsonConvert.Export(methodNames, writer);
writer.WriteLine(';');
writer.Write("var idems = ");
JsonConvert.Export(idempotents, writer);
writer.WriteLine(';');
writer.WriteLine();
for (int i = 0; i < methods.Length; i++)
{
Method method = methods[i];
string index = i.ToString(CultureInfo.InvariantCulture);
if (method.Description.Length > 0)
{
// TODO: What to do if summary breaks over several lines?
writer.Write("// ");
writer.WriteLine(method.Description);
writer.WriteLine();
}
writer.Write("this[m[");
writer.Write(index);
writer.Write("]] = function /* ");
writer.Write(method.Name);
writer.Write(" */ (");
Parameter[] parameters = method.GetParameters();
foreach (Parameter parameter in parameters)
{
writer.Write(parameter.Name);
writer.Write(", ");
}
writer.WriteLine("callback)");
writer.WriteLine("{");
writer.Indent++;
writer.Write("if (self.kwargs) return rpc(new Call(");
writer.Write(index);
writer.Write(", {");
foreach (Parameter parameter in parameters)
{
if (parameter.Position > 0)
writer.Write(',');
writer.Write(' ');
writer.Write(parameter.Name);
writer.Write(": ");
writer.Write(parameter.Name);
}
writer.WriteLine(" }, callback));");
writer.Write("return rpc(new Call(");
writer.Write(index);
writer.Write(", [");
foreach (Parameter parameter in parameters)
{
if (parameter.Position > 0)
writer.Write(',');
writer.Write(' ');
writer.Write(parameter.Name);
}
writer.WriteLine(" ], callback));");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
}
writer.Write("var url = typeof(url) === 'string' ? url : '");
writer.Write(url);
writer.WriteLine("';");
writer.WriteLine(@"var nextId = 0;
function Call(method, params, callback)
{
this.url = url;
this.callback = callback;
this.proxy = self;
this.idempotent = idems[method];
this.request =
{
id : ++nextId,
method : m[method],
params : params
};
}
function rpc(call)
{
return self.channel != null && typeof(self.channel.rpc) === 'function' ?
self.channel.rpc(call) : call;
}
this.kwargs = false;
this.channel = new JayrockChannel();
function JayrockChannel()
{
this.rpc = function(call)
{
var async = typeof(call.callback) === 'function';
var xhr = newXHR();
xhr.open('POST', call.url, async, this.httpUserName, this.httpPassword);
xhr.setRequestHeader('Content-Type', this.contentType || 'application/json; charset=utf-8');
xhr.setRequestHeader('X-JSON-RPC', call.request.method);
if (async) xhr.onreadystatechange = function() { xhr_onreadystatechange(xhr, call.callback); }
xhr.send(JSON.stringify(call.request));
call.handler = xhr;
if (async) return call;
if (xhr.status != 200) throw new Error(xhr.status + ' ' + xhr.statusText);
var response = JSON.parse(xhr.responseText);
if (response.error != null) throw response.error;
return response.result;
}
function xhr_onreadystatechange(sender, callback)
{
if (sender.readyState == /* complete */ 4)
{
try {
sender.onreadystatechange = null; // Avoid IE7 leak (bug #12964)
}
catch (e) {
/* IE 6/Mobile throws for onreadystatechange = null */
}
var response = sender.status == 200 ?
JSON.parse(sender.responseText) : {};
callback(response, sender);
}
}
function newXHR()
{
if (typeof(window) !== 'undefined' && window.XMLHttpRequest)
return new XMLHttpRequest(); /* IE7, Safari 1.2, Mozilla 1.0/Firefox, and Netscape 7 */
else
return new ActiveXObject('Microsoft.XMLHTTP'); /* WSH and IE 5 to IE 6 */
}
}");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
writer.Write(service.Name);
writer.Write(".rpcMethods = ");
JsonConvert.Export(methodNames, writer);
writer.WriteLine(";");
}
private void Version2(ServiceClass service, Uri url, IndentedTextWriter writer)
{
Debug.Assert(service != null);
Debug.Assert(url!= null);
Debug.Assert(!url.IsFile);
Debug.Assert(writer != null);
if (JsonRpcTrace.TraceWarning)
{
writer.WriteLine(@"// *** O B S O L E T E ***
//
// You are using version 2 of the JavaScript proxy that MAY
// be obsoleted and removed in the next release. The functionality has
// been integrated into the original proxy version via the channel
// property on the JavaScript proxy.
");
}
writer.WriteLine("// Proxy version 2.0");
writer.WriteLine();
writer.Write("var ");
writer.Write(service.Name);
writer.Write(@" = function()
{
var nextId = 0;
var proxy = {
url : """);
writer.Write(url);
writer.Write(@""",
rpc : {");
writer.WriteLine();
writer.Indent += 3;
Method[] methods = service.GetMethods();
string[] methodNames = new string[methods.Length];
for (int i = 0; i < methods.Length; i++)
methodNames[i] = methods[i].Name;
Array.Sort(methodNames, methods);
for (int i = 0; i < methods.Length; i++)
{
Method method = methods[i];
writer.WriteLine();
if (method.Description.Length > 0)
{
// TODO: What to do if /* and */ appear in the summary?
writer.Write("/* ");
writer.Write(method.Description);
writer.WriteLine(" */");
writer.WriteLine();
}
writer.Write('\"');
writer.Write(method.Name);
writer.Write("\" : function(");
Parameter[] parameters = method.GetParameters();
foreach (Parameter parameter in parameters)
{
writer.Write(parameter.Name);
writer.Write(", ");
}
writer.WriteLine("callback) {");
writer.Indent++;
writer.Write("return new Call(\"");
writer.Write(method.Name);
writer.Write("\", [");
foreach (Parameter parameter in parameters)
{
if (parameter.Position > 0)
writer.Write(',');
writer.Write(' ');
writer.Write(parameter.Name);
}
writer.WriteLine(" ], callback);");
writer.Indent--;
writer.Write("}");
if (i < (methods.Length - 1))
writer.Write(',');
writer.WriteLine();
}
writer.Indent--;
writer.WriteLine(@"}
}
function Call(method, params, callback)
{
this.url = proxy.url;
this.callback = callback;
this.request =
{
id : ++nextId,
method : method,
params : params
};
}
Call.prototype.call = function(channel) { return channel(this); }
return proxy;
}();");
writer.Indent--;
}
private void WriteClassTail(IndentedTextWriter writer, ServiceClass serviceClass)
{
writer.WriteLine(@"def __call(self, method, params):
self.__id = self.__id + 1
response = simplejson.loads(urllib.urlopen(self.url, urllib.urlencode([('JSON-RPC', simplejson.dumps({ 'id' : self.__id, 'method' : method, 'params' : params }))])).read())
if response.has_key('error'): raise Error(None, response)
return response['result']
");
writer.Indent--;
}
private static void Version1(ServiceClass service, Uri url, IndentedTextWriter writer)
{
Debug.Assert(service != null);
Debug.Assert(url!= null);
Debug.Assert(!url.IsFile);
Debug.Assert(writer != null);
writer.WriteLine("// Proxy version 1.0");
writer.WriteLine();
writer.Write("function ");
writer.Write(service.Name);
writer.WriteLine("(url)");
writer.WriteLine("{");
writer.Indent++;
Method[] methods = service.GetMethods();
string[] methodNames = new string[methods.Length];
for (int i = 0; i < methods.Length; i++)
{
Method method = methods[i];
methodNames[i] = method.Name;
if (method.Description.Length > 0)
{
// TODO: What to do if /* and */ appear in the summary?
writer.Write("/* ");
writer.Write(method.Description);
writer.WriteLine(" */");
writer.WriteLine();
}
writer.Write("this[\"");
writer.Write(method.Name);
writer.Write("\"] = function(");
Parameter[] parameters = method.GetParameters();
foreach (Parameter parameter in parameters)
{
writer.Write(parameter.Name);
writer.Write(", ");
}
writer.WriteLine("callback)");
writer.WriteLine("{");
writer.Indent++;
writer.Write("return call(\"");
writer.Write(method.Name);
writer.Write("\", [");
foreach (Parameter parameter in parameters)
{
if (parameter.Position > 0)
writer.Write(',');
writer.Write(' ');
writer.Write(parameter.Name);
}
writer.WriteLine(" ], callback);");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
}
writer.Write("var url = typeof(url) === 'string' ? url : '");
writer.Write(url);
writer.WriteLine("';");
writer.WriteLine(@"var self = this;
var nextId = 0;
function call(method, params, callback)
{
var request = { id : nextId++, method : method, params : params };
return callback == null ?
callSync(method, request) : callAsync(method, request, callback);
}
function callSync(method, request)
{
var http = newHTTP();
http.open('POST', url, false, self.httpUserName, self.httpPassword);
setupHeaders(http, method);
http.send(JSON.stringify(request));
if (http.status != 200)
throw { message : http.status + ' ' + http.statusText, toString : function() { return message; } };
var response = JSON.eval(http.responseText);
if (response.error != null) throw response.error;
return response.result;
}
function callAsync(method, request, callback)
{
var http = newHTTP();
http.open('POST', url, true, self.httpUserName, self.httpPassword);
setupHeaders(http, method);
http.onreadystatechange = function() { http_onreadystatechange(http, callback); }
http.send(JSON.stringify(request));
return request.id;
}
function setupHeaders(http, method)
{
http.setRequestHeader('Content-Type', 'text/plain; charset=utf-8');
http.setRequestHeader('X-JSON-RPC', method);
}
function http_onreadystatechange(sender, callback)
{
if (sender.readyState == /* complete */ 4)
{
var response = sender.status == 200 ?
JSON.eval(sender.responseText) : {};
response.xmlHTTP = sender;
callback(response);
}
}
function newHTTP()
{
if (typeof(window) != 'undefined' && window.XMLHttpRequest)
return new XMLHttpRequest(); /* IE7, Safari 1.2, Mozilla 1.0/Firefox, and Netscape 7 */
else
return new ActiveXObject('Microsoft.XMLHTTP'); /* WSH and IE 5 to IE 6 */
}");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
writer.Write(service.Name);
writer.Write(".rpcMethods = ");
JsonTextWriter jsonWriter = new JsonTextWriter(writer);
jsonWriter.WriteStringArray(methodNames);
writer.WriteLine(";");
}
public void CustomServiceName()
{
ServiceClass clazz = JsonRpcServices.GetClassFromType(typeof(TestService));
Assert.AreEqual("MyService", clazz.Name);
}
public void MethodLookupIsCaseInsensitive()
{
ServiceClass clazz = JsonRpcServices.GetClassFromType(typeof(TestService));
Assert.IsNotNull(clazz.FindMethodByName("FOO"));
}
public void TaggedMethodsExported()
{
ServiceClass clazz = JsonRpcServices.GetClassFromType(typeof(TestService));
Assert.AreEqual(2, clazz.GetMethods().Length);
}
public void UntaggedMethodsNotExported()
{
ServiceClass clazz = JsonRpcServices.GetClassFromType(typeof(EmptyService));
Assert.AreEqual(0, clazz.GetMethods().Length);
}
public void ServiceNameIsTypeName()
{
ServiceClass clazz = JsonRpcServices.GetClassFromType(typeof(EmptyService));
Assert.AreEqual("EmptyService", clazz.Name);
}
protected abstract void WriteClassTail(IndentedTextWriter writer, ServiceClass serviceClass);
protected override void WriteClassTail(IndentedTextWriter writer, ServiceClass serviceClass)
{
throw new NotImplementedException();
}
