hi I have a problem regarding FileStream openAsync read file, I have a listener and waiting on complete
var file:File = File.applicationStorageDirectory.resolvePath(fName+'.'+EXT);
var fileStream:FileStream = new FileStream();
if (!file.exists) {
this.dispatchEvent(new AppEvent(AppEvent.DATA, null, false));
}else {
fileStream.addEventListener(Event.COMPLETE, fileReadCompleteHandler);
fileStream.openAsync(file, FileMode.READ);
fileStream.addEventListener(Event.CLOSE, fileClosedHandler);
fileStream.addEventListener(IOErrorEvent.IO_ERROR, IOErrorHandler);
}
private function fileReadCompleteHandler(event:Event):void {
var ob:Object;
var fileStream:FileStream = FileStream(event.currentTarget);
try {
ob.source = fileStream.readObject();
}catch (e:Error) {
trace('error:' + e.message)
}
fileStream.removeEventListener(Event.COMPLETE, fileReadCompleteHandler);
fileStream.close();
}
on fileReadCompleteHandler I get error: "Error #1009: Cannot access a property or method of a null object reference."
what I am missing, how can I read object from openAsync?
thanks
You never initialize object ob, of course accessing fields of a null object gives you #1009:
var ob:Object;
var fileStream:FileStream = FileStream(event.currentTarget);
try {
ob.source = fileStream.readObject();
You need to:
var ob:Object = new Object;
var fileStream:FileStream = FileStream(event.currentTarget);
try {
ob.source = fileStream.readObject();
Related
I tried to execute my application Rest api. Using a breakpoint, I found a problm in this line:
expenses.AmountTTC = Convert.ToDecimal(ttc.Text);
The error is "Specified cast is not valid".
AmountTTC has the type decimal? in the model , same for my service(i have two projects, one for the services and anthor for my mobile application).
private void Button_Clicked(object sender, EventArgs e)
{
ajoutD.Clicked += async delegate
{
try
{
LoginViews expenses = new LoginViews();
expenses.Name = nameLib.Text;
expenses.StartDate = dataDe.Date;
expenses.EndDate = dateAu.Date;
datenow.Date = DateTime.Now;
expenses.Description = description.Text;
expenses.CurrencyId = Convert.ToInt32(devises.Id);
expenses.AmountTTC = Convert.ToDecimal(ttc.Text);
remb.Text = expenses.AmountReimbursed.ToString();
expenses.Remboursable = Convert.ToBoolean(isremboursable);
expenses.Provider = marchand.Text;
HttpClient httpClient = new HttpClient();
HttpResponseMessage response;
var json = JsonConvert.SerializeObject(expenses);
var content = new StringContent(json, Encoding.UTF8, "application/json");
response = await httpClient.PostAsync(url, content);
AuthResponse responseData = JsonConvert.DeserializeObject<AuthResponse>(response?.Content?.ReadAsStringAsync()?.Result);
if (responseData.data.Success)
{
await DisplayAlert("heey", "connexion done", "ok");
}
else
{
await DisplayAlert("wake up !", responseData.data.ErrorMessage, "attention");
}
}catch(Exception eee)
{
string msg = eee.ToString();
}
};
}
Am trying to create a an azure function that is triggered in a Logic Apps,
The functions purpose is to web crawl certain web sites, take the desired information, compare that with a a SQL Server database in Azure, compare if we already have that information if not add it.
My issue is that when ever i run it I get the Server 500 error, I assume its accessing the database that cause. Help?
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req, ILogger log
)
{
log.LogInformation("C# HTTP trigger function processed a request.");
string RequestBody = await new StreamReader(req.Body).ReadToEndAsync();
{
return await CrawlBlog(0, RequestBody);
}
}
private static async Task<IActionResult> CrawlBlog(int Picker, string req)
{
int BlogPicker = Picker;
string TheResult = req;
//Get the url we want to test
var Url = "";
if (BlogPicker == 0)
{
Url = "*********";
}
else if (BlogPicker == 1)
{
Url = "*********";
}
/*
else if (BlogPicker == 2)
{
Url = "https://azure.microsoft.com/en-in/blog/?utm_source=devglan";
}
*/
else
{
TheResult = "False we got a wrong pick";
return (ActionResult)new OkObjectResult
( new {TheResult });
}
var httpClient = new HttpClient();
var html = await httpClient.GetStringAsync(Url);
var htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(html);
//a list to add all availabel blogs we found
var Blog = new List<BlogStats>();
switch (BlogPicker)
{
case 0:
{
var divs =
htmlDocument.DocumentNode.Descendants("div")
.Where(node => node.GetAttributeValue("class", "").Equals("home_blog_sec_text")).ToList();
foreach (var divo in divs)
{
var Blogo = new BlogStats
{
Summary = divo.Descendants("p").FirstOrDefault().InnerText,
Link = divo.Descendants("a").FirstOrDefault().ChildAttributes("href").FirstOrDefault().Value,
Title = divo.Descendants("a").FirstOrDefault().InnerText
};
Blog.Add(Blogo);
}
break;
}
case 1:
{
var divs =
htmlDocument.DocumentNode.Descendants("div")
.Where(node => node.GetAttributeValue("class", "").Equals("post_header_title two_third last")).ToList();
foreach (var divo in divs)
{
//string TheSummary = "we goofed";
var ThePs = divo.Descendants("p").ToList();
var Blogo = new BlogStats
{
Summary = ThePs[1].GetDirectInnerText(),
Link = divo.Descendants("a").LastOrDefault().ChildAttributes("href").FirstOrDefault().Value,
Title = divo.Descendants("a").FirstOrDefault().InnerText
};
Blog.Add(Blogo);
}
break;
}
}
TheResult = await SqlCheck(Blog[0].Title, Blog[0].Summary, Blog[0].Link); //error 500
return (ActionResult)new OkObjectResult
(
new
{
TheResult
}
);
}
public static async Task<string> SqlCheck(string Tit, string Sumy, string Lin)
{
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.DataSource = "flygon.database.windows.net";
builder.UserID = "*****";
builder.Password = "********";
builder.InitialCatalog = "torkoal";
System.Data.DataSet ds = new System.Data.DataSet();
SqlConnection connection = new SqlConnection(builder.ConnectionString);
connection.Open();
SqlCommand CheckCommand = new SqlCommand("SELECT * FROM TableBoto WHERE Link = #id3 ", connection);
CheckCommand.Parameters.AddWithValue("#id3", Lin);
SqlDataAdapter dataAdapter = new SqlDataAdapter(CheckCommand);
dataAdapter.Fill(ds);
int i = ds.Tables[0].Rows.Count;
if (i > 0)
{
return $" We got a Duplicates in title : {Tit}";
}
try
{
{
string query = $"insert into TableBoto(Title,Summary,Link) values('{Tit}','{Sumy}','{Lin}');";
SqlCommand command = new SqlCommand(query, connection);
SqlDataReader reader = await command.ExecuteReaderAsync();
reader.Close();
}
}
catch (SqlException)
{
// Console.WriteLine(e.ToString());
}
connection.Close();
return $" Success Ign +{Tit} + Ign {Sumy}+ Ign {Lin} Ign Success SQL ";
}
}
500 HTTP status code is a generic code which means that the server was not able to process the request due to some issues, First step would be to add some exception handling to your function and see if the failure occurs and where it occurs.
On Side note, you should not use HTTP client in the way used in the code, you should not new it up every time your function executes, this client should be static in nature. Refer Manage connections in Azure Functions
Given a Feature result set passed into this function, I am trying to traverse up the project hierarchy up to the subscription. I can't I get a null pointer on the projResponse =... No even sure of the approach for this.
private static void getProjHierarchyForFeature(RallyRestApi restApi, QueryResponse featureSet,
Time2Market time2market, Integer featureInSet) {
String tempHierarchy = "";
JsonArray tempFeatures = featureSet.getResults();
//time2market.setProjectName(projectName);
try {
JsonObject obj1 = tempFeatures.get(featureInSet).getAsJsonObject();
JsonObject proj = obj1.get("Project").getAsJsonObject();
String url = proj.get("_ref").getAsString();
QueryRequest projQuery = new QueryRequest(url);
projQuery.setFetch(new Fetch("_ref", "_refObjectUUID", "_refObjectName"));
QueryResponse projResponse = restApi.query(projQuery);
if (projResponse.wasSuccessful()) {
JsonArray tempProj = projResponse.getResults();
// Here we have the project object, now process Parents...
Boolean moreParents = true;
while (moreParents) {
QueryRequest parentQuery = new QueryRequest(url);
//projQuery.setFetch(new Fetch("_ref", "_refObjectUUID", "_refObjectName"));
QueryResponse parentResponse = restApi.query(parentQuery);
if (parentResponse.wasSuccessful()) {
System.out.println ("proj Response... " + parentResponse.toString());
JsonArray projParent = parentResponse.getResults();
tempHierarchy.concat(projParent.get(0).getAsString());
JsonArray tempParent = parentResponse.getResults();
proj = tempParent.getAsJsonObject();
} else {
moreParents = false;
}
}
} else {
System.err.println("The following errors occurred: ");
for (String err : projResponse.getErrors()) {
System.err.println("\t" + err);
}
throw new java.lang.Error("Rally API Call Error Occurred");
}
} catch (Exception e) {
e.printStackTrace();
}
}
You probably want to use a GetRequest instead of a QueryRequest since you're just reading a single object. Also, include Parent in your fetch. Then you should have the data to be able to determine whether there is a parent and to continue looping or not.
I am massively stuck with converting a PHP server request into an equivalent Java Request. This is the code that contains the JSON object that I need to replicate in JAVA and send from an Android device:
$(".unableprocess").click(function() {
if (!confirm("Confirm not able to process...!")) {
return false;
} else {
var item_id = $(this).attr('data-id');
var table_id = $(this).attr('table-id');
var data = {
BookOrders: {
item_id: item_id,
table_id: table_id
}
};
$.ajax({
url: //MY URL HERE ,
type: "POST",
data: data,
success: function(evt, responseText) {
location.reload();
}
});
}
});
And here is my Java class that attempts to perform the same functionality. The class extends AsyncTask and all network interactions occur in the doInBackground() method. Here is my code:
#Override
protected Boolean doInBackground(String... arg0) {
try{
HashMap<String, String> hashMap = new HashMap<String,String>();
JSONObject jsonObject = new JSONObject();
int statusCode;
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(tableMateCannotProcessURL);
// JSON object creation begins here:
jsonObject.accumulate("item_id",this.itemId);
jsonObject.accumulate("table_id",this.tableId);
JSONObject jObject = new JSONObject();
jObject.accumulate("BookOrders", jsonObject);
// JSON object ends here
Log.v("ATOMIC BLAST",jObject.toString());
String json = jObject.toString();
StringEntity se = new StringEntity(json);
httpPost.setEntity(se);
HttpResponse response = client.execute(httpPost);
statusCode = response.getStatusLine().getStatusCode();
Integer statusCodeInt = new Integer(statusCode);
Log.v("HTTPResponse",statusCodeInt.toString());
String result= "";
StringBuilder builder = new StringBuilder();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
result = builder.toString();
}
else {
Log.e("==>", "Failed to download file");
}
}
catch(Exception e){
e.printStackTrace();
}
return null;
}
The JSON object that I created looks like this after printing it out to the console:
{"BookOrders":{"table_id":"1","item_id":"2"}}
After POSTing this object to the server I do not get the expected response. What is the proper method for converting the JSON object into an equivalent JSON object in JAVA? Any guidance, direction or a solution would be most appreciated.
Update php to version 5.4 helped me.
In this version json_encode($x, JSON_PRETTY_PRINT) works just as needed.
Your JSON seems to be correct but it's an Object in an Object.
JSONObject json = new JSONObject(yourdata);
JSONObject jsonTable = new JSONObject(json.getString("BookOrders"));
Log.d("JsonDebug", "json:" + jsonTable.toString());
If you are not sure if you have a JSONObject or an Array you can validate it by using
String data = "{ ... }";
Object json = new JSONTokener(data).nextValue();
if (json instanceof JSONObject)
//you have an object
else if (json instanceof JSONArray)
//you have an array
I tried to do this:
var NewViewResult = new ViewResult { ViewName = "Error", ViewBag.error = "Error Here" };
I got these two errors
Invalid initializer member declarator
The name 'ViewBag' does not exist in the current context
That is my code:
public override void OnException(System.Web.Mvc.ExceptionContext filterContext)
{
if (filterContext.ExceptionHandled) return;
string actionName = filterContext.RouteData.Values["action"].ToString();
Type controllerType = filterContext.Controller.GetType();
var method = controllerType.GetMethod(actionName);
var returnType = method.ReturnType;
if (returnType.Equals(typeof(JsonResult))) if (filterContext.Exception is CustomException) filterContext.Result = new JsonResult() { Data = ((CustomException)filterContext.Exception).Type }; else filterContext.Result = new JsonResult() { Data = OurExceptionType.GeneralException };
else if (returnType.Equals(typeof(ActionResult)) || (returnType).IsSubclassOf(typeof(ActionResult))) filterContext.Result = new ViewResult { ViewName = "Error" ViewBag.error="SomeError" };
filterContext.ExceptionHandled = true;
}
ViewBag is a dynamic property you cannot pass it like this in a ViewResult.
Set value in ViewBag like this:
var NewViewResult = new ViewResult { ViewName = "Error" };
ViewBag.error = "Error Message";
and In View, you can simply access it without passing in the ViewResult:
<span>#ViewBag.error</span>
and if you really want to pass it in ViewResult,then don't use ViewBag, do like this:
var NewViewResult = new ViewResult { ViewName = "Error" };