in product mode in GWT the assertion is not available which is good, but because of a GXT error I get an assertion error and because the necessary classes are not available all I get is a com.google.gwt.core.client.JavaScriptException error in the browser and it's not enough to properly debug it. The reason why I need this is because in my custom framework I created a class that's responsible for error handling
GWT.setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
#Override
public void onUncaughtException(Throwable e) {
addError(e);
}
});
public void addError(Throwable ex)
{
if(!ex.getClass().equals(AssertionError.class))//(ex instanceof AssertionError))
{
this.addError(ex, true);
}
}
as you can see I've tried to capture the error but I'm unable to in production mode. I somehow need to be able to sepcify the exception so I can filter it. All errors get into the logs and I don't want these errors to appear there
GXT Error => http://www.sencha.com/forum/showthread.php?171409-RowEditor-AssertionError&p=709005
thanks help
By Egg
You need to enable assertions in your compiled code, and this is done very similarly to how you would do this in a standard jvm, using the -ea flag. Instead of passing this to the jvm though, it needs to be passed to the Compiler class (or put in the program args if running from eclipse, or some other tool).
See http://code.google.com/webtoolkit/doc/latest/DevGuideCompilingAndDebugging.html#DevGuideCompilerOptions for the list of all args you can pass to the compiler
Related
Can someone point me to best practices for error handling in a Visual Studio Code extension?
I'm writing an extension in TypeScript that contributes a debugger. I want to log unexpected behavior, sometimes as information to the user explaining that something didn't go right, sometimes to create a trail for debugging, but certainly not to fail silently. Using console.log or console.error shows up in the debug output when I am debugging the extension, but I can't find it when the extension is installed. Do I have to open an output channel specifically for my extension and write everything there? Should I be throwing up showInformationMessage and showErrorMessage windows? Should I just be throwing exceptions and hope that code will do the right thing?
In my extension I use two ways for feedback. One is an output channel for errors produced by an external process that I'm using for the work.
Create the channel in your activation method:
outputChannel = window.createOutputChannel("ANTLR4 Errors");
and push output to it whenever you have something:
} catch (reason) {
outputChannel.appendLine("Cannot parse sentence generation config file:");
outputChannel.appendLine((reason as SyntaxError).message);
outputChannel.show(true);
return;
}
The other one is what you already considered:
if (workspace.getConfiguration("antlr4.generation").mode === "none") {
void window.showErrorMessage("Interpreter data generation is disabled in the preferences (see " +
"'antlr4.generation'). Set this at least to 'internal' to enable debugging.");
return null;
}
which is for messages I create in the extension and that users need to see and take seriously.
In one of my project (.net core 3.1), I need a way to redirect System.Diagnostics.Trace.WriteLine to Serilog file. I found the SerilogTraceListener package which seems to be the right candidate.
Unfortunately until now, I haven't been able to find a way to make it works.
To reproduce it,
1) Create a .net core console project
2) Add the following nuget package : Serilog, SerilogTraceListener, Serilog.Sink.Console, Serilog.Sink.File
3) Overwrite the Program class code by the following
class Program
{
static void Main(string[] args)
{
// Works fine
Log.Logger = new LoggerConfiguration()
.WriteTo.Console()
.WriteTo.File("log.txt")
.CreateLogger();
Log.Logger.Information("A string written using Logger.Information");
// Trace is written in the console but not in the file
Trace.Listeners.Add(new ConsoleTraceListener());
Trace.Listeners.Add(new global::SerilogTraceListener.SerilogTraceListener());
System.Diagnostics.Trace.WriteLine("A string written using Trace.WriteLine");
}
}
What am I doing wrong?
TL;DR; You need to set the MinimumLevel to Debug or Verbose in order to see the Trace.WriteLine messages.
SerilogTraceListener maps System.Diagnostic.TraceEventType to Serilog.LogEventLevel, and when you call Trace.WriteLine, it maps these events to the Debug log event level.
That means Serilog's logger is receiving a message of type LogEventLevel.Debug.
The minimum level configured in Serilog by default is Information, which means Debug messages are being suppressed.
You have to configure the MinimumEventLevel to Debug (or Verbose) in order to see the Trace.WriteLine messages:
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug() // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
.WriteTo.Console()
.WriteTo.File("log.txt")
.CreateLogger();
I am a student who begin to study SHOP2 from China.
My teacher told me to run JSHOP2 in Eclipse.Now I can run original zenotravel problem and generate GUI and plans.Likewise, I want to put other domain and problems to SHOP2 and produce plans.
But the problem is that I don't know how to compile them and My teacher only asked me to run the the main function in Internaldomain but it can't succeed.Follow is the original code:
public static void main(String[] args) throws Exception
{
//compile();
// compile(args);
//-- run the planning algorithm
run(args);
}
This code can run zenotravel.Then I put domain and problems named pfile1 and
tdepots respectively into SHOP2 folder.Change the codes to:
{
compile(domaintdepots);
// compile(args);
//-- run the planning algorithm
run(args);
}
It warns "domainpdfiles cannot be resolved to a variable".
Or
//--compile();
compile(args);
//-- run the planning algorithm
//run(args);
It turns out:
"Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at JSHOP2.InternalDomain.compile(InternalDomain.java:748)
at JSHOP2.InternalDomain.main(InternalDomain.java:720)"
720 is main funcition above.And 748 is compile function:
public static void compile(String[] args) throws Exception
{
//-- The number of solution plans to be returned.
int planNo = -1;
//-- Handle the number of solution plans the user wants to be returned.
if (args.length == 2 || args[0].substring(0, 2).equals("-r")) {
if (args[0].equals("-r"))
planNo = 1;
else if (args[0].equals("-ra"))
planNo = Integer.MAX_VALUE;
else try {
planNo = Integer.parseInt(args[0].substring(2));
} catch (NumberFormatException e) {
}
}
Finally,according to the advice of the friend,I put the two pddls into src folder and use “java Jshop2.InternalDomain domaintdepots”in CMD commad but an error appeared:"the main class Interdomain can't be found or loaded".But I have set the class path accurately and the Zenotravel planning can run.So how
and where can I use the command ？
And what is written in the bracket"compile()" in Eclipse？
I am also not familiar with JAVA so it's better if there is concrete instruction.Thanks a lot.
Please describe what are you trying to build, what is it supposed to do, what is the expected end result.
If you do have a valid PDDL domain and problem file, you could try to load them into the online http://editor.planning.domains/ editor using the File > Load menu. Then press the Solve button and confirm which of the file is the domain and which is problem. If the PDDL model is valid (and the underlying solver can handle the requirements), you will get a plan back.
If you are trying to build a software solution that needs a PDDL-based planning engine as one of its component, perhaps you could use one of the available implementations: https://nergmada.github.io/pddl-reference/guide/whatisplanner.html#list-of-planners
If you are trying to build your own planning engine in Java using the Eclipse IDE, you probably need a Java-based PDDL parser. Here is a tutorial, how to use pddl4j for that purpose:
https://github.com/pellierd/pddl4j/wiki/A-tutorial-to-develop-your-own-planner
If you need to use Jshop2 in particular, it looks from their documentation (http://www.cs.umd.edu/projects/shop/description.html) that you need to indeed compile the domain and problem PDDL into Java code using following commands:
java JSHOP2.InternalDomain domainFileName
java JSHOP2.InternalDomain -r problemFileName
Edited on June 19th
Java package names (e.g. JSHOP2) and class names (InternalDomain) are case sensitive, so make sure you type them as per the documentation. That is probably why you are getting the "main class not found error".
It is difficult to say what the lines numbers 748 and 720 exactly correspond to, because in the GitHub repo https://github.com/mas-group/jshop2/blob/master/src/JSHOP2/InternalDomain.java the code is different from yours. Can you indicate in your questions which lines those are exactly?
The make file shows how to execute an out-of-the-box example in the distribution:
cd examples\blocks
java JSHOP2.InternalDomain blocks
java JSHOP2.InternalDomain -r problem300
Does that work for you?
I'm currently developing an eclipse plugin. This plugin contains a project nature which depends on the javaScript nature of jsdt.
Now at a few details the JavaScripts that the projects of my nature can contain are somewhat special.
They can contain "compiler hints" which are basicly statements beginning with #
They can contain return statements outside of functions
But at this two points the standard validation of jsdt come in and marks them as errors (which is normally right). I already managed to get this errors filtered out in the properties of the JavaScript validator (manually).
My question is, how can i exclude these errors from the validation of jsdt automatically for the projects with my nature?
JSDT uses concrete syntax parser which generates syntax errors.
You can't disable this. Only semantics error or warnings can be configured.
However you can disable entire validation of JSDT.
Below solution will suppress errors ands warnings which are generated while we save some changes on java script files. (Auto Build, Build)
Open Properties Dialog of Your Project.
Choose Builders item.
Uncheck "JavaScript Validator". And Press OK button.
Remove current errors and warnings from Problems View
This solution can't eliminate error or warning annotations in editor while you edit. They will show up on editor temporarily only when you edit it.
After a lot of research, hours of deleting markers and debugging i finally managed to delete the errors i wanted. In a bad bad way of course but i've come to a point where i just wanted this to work no matter how it's done.
If you ever want to delete existing problems that had been created during the validation process of jsdt you need to do the following (and you must not ommit anything):
Create a class extending org.eclipse.wst.jsdt.core.compiler.ValidationParticipant
Override isActive(), buildStarting() and reconcile() methods.
So there are two things you basicly have to care about.
The actual problem markers that will be created or had already been created at the end of the validation process.
The Problems created by the validation process. They are of the type CategorizedProblem and can be obtained by the ReconcileContext object that is passed to the reconcile() method.
It seems to me that the CategorizedProblems will be translated to problem markers after the validation process.
So what you need to do is:
Delete all unwanted problem markers of all files in buildStarting (this removes problem markers from all files in your project that are about to be validated)
Iterate the CategorizedProblem objects of the ReconcileContext (getProblems())
Create a new Array containing only the CategorizedProblems you want to keep
Set this new Array to the ReconcileContext with putProblems()
Delete the unwanted markers again for that file (i don't know why this is needed, please don't ask, i don't care anymore :-/)
An example implementation of such a validationParticipant could look like this: (this one will filter out problems complaining about return statements outside of methods:
[...ommited imports ...]
public class MyValidationParticipant extends org.eclipse.wst.jsdt.core.compiler.ValidationParticipant{
#Override
public boolean isActive(IJavaScriptProject project) {
return true;
}
#Override
public void buildStarting(BuildContext[] files, boolean isBatch) {
super.buildStarting(files, isBatch);
for(BuildContext context : files){
IFile file = context.getFile();
deleteUnwantedMarkers(file);
}
}
#Override
public void reconcile(ReconcileContext context) {
IResource resource = context.getWorkingCopy().getResource();
CategorizedProblem[] newProblems = new CategorizedProblem[0];
ArrayList<CategorizedProblem> newProblemList = new ArrayList<CategorizedProblem>();
CategorizedProblem[] probs = context.getProblems("org.eclipse.wst.jsdt.core.problem");
if(probs != null){
for(CategorizedProblem p : probs){
if(!(p.getMessage().equals("Cannot return from outside a function or method."))){
newProblemList.add(p);
}
}
}
}
context.putProblems("org.eclipse.wst.jsdt.core.problem", newProblemList.toArray(newProblems));
deleteUnwantedMarkers(resource);
}
public static void deleteUnwantedMarkers(IResource resource){
if(resource.isSynchronized(IResource.DEPTH_INFINITE)){
try {
IMarker[] markers = resource.findMarkers(IMarker.PROBLEM, true, IResource.DEPTH_INFINITE);
if(markers != null && markers.length > 0){
for(IMarker m : markers){
Object message = m.getAttribute(IMarker.MESSAGE);
if(message.equals("Cannot return from outside a function or method.")){
m.delete();
}
}
}
}catch (CoreException e) {
e.printStackTrace();
}
}
}
}
As i said, this is kind of a bad solution since the code relies on the String of the error message. There should be better ways to identify the problems you don't want to have.
Don't forget to add a proper extension in your plugin.xml for the ValidationParticipant.
Hi All i have a question regarding NUnit Extension (2.5.10).
What i am trying to do is write some additional test info to the
database. For that i have created NUnit extension using Event
Listeners.
The problem i am experiencing is that public void
TestFinished(TestResult result) method is being called twice at
runtime. And my code which writes to the database is in this method
and that leaves me with duplicate entries in the database. The
question is: Is that the expected behaviour? Can i do something about
it?
The extension code is below. Thanks.
using System;
using NUnit.Core;
using NUnit.Core.Extensibility;
namespace NuinitExtension
{
[NUnitAddinAttribute(Type = ExtensionType.Core,
Name = "Database Addin",
Description = "Writes test results to the database.")]
public class MyNunitExtension : IAddin, EventListener
{
public bool Install(IExtensionHost host)
{
IExtensionPoint listeners = host.GetExtensionPoint("EventListeners");
if (listeners == null)
return false;
listeners.Install(this);
return true;
}
public void RunStarted(string name, int testCount){}
public void RunFinished(TestResult result){}
public void RunFinished(Exception exception){}
public void TestStarted(TestName testName){}
public void TestFinished(TestResult result)
{
// this is just sample data
SqlHelper.SqlConnectAndWRiteToDatabase("test", test",
2.0, DateTime.Now);
}
public void SuiteStarted(TestName testName){}
public void SuiteFinished(TestResult result){}
public void UnhandledException(Exception exception){}
public void TestOutput(TestOutput testOutput){}
}
}
I have managed to fix the issue by simply removing my extension
assembly from NUnit 2.5.10\bin\net-2.0\addins folder. At the moment
everything works as expected but i am not sure how. I thought that you
have to have the extension/addin assembly inside the addins folder.
I am running tests by opening a solution via NUnit.exe. My extension
project is part of the solution i am testing. I have also raised this issue with NUnit guys and got the following explanation:
Most likely, your addin was being loaded twice. In order to make it easier to test addins, NUnit searches each test assembly for addins to be loaded, in addition to searching the addins directory. Normally, when you are confident that your addin works, you should remove it from the test assembly and install it in the addins folder. This makes it available to all tests that are run using NUnit. OTOH, if you really only want the addin to apply for a certain project, then you can leave it in the test assembly and not install it as a permanent addin.
http://groups.google.com/group/nunit-discuss/browse_thread/thread/c9329129fd803cb2/47672f15e7cc05d1#47672f15e7cc05d1
Not sure this answer is strictly relevant but might be useful.
I was having a play around with the NUnit library recently to read NUnit tests in so they could easily be transfered over to our own in-house acceptance testing framework.
It turns out we probably wont stick with this but thought it might be useful to share my experiences figuring out how to use the NUnit code:
It is different in that it doesn't get run by the NUnit console or Gui Runner but just by our own console app.
public class NUnitTestReader
{
private TestHarness _testHarness;
public void AddTestsTo(TestHarness testHarness)
{
_testHarness = testHarness;
var package = new TestPackage(Assembly.GetExecutingAssembly().Location){AutoBinPath = true};
CoreExtensions.Host.InitializeService();
var testSuiteBuilder = new TestSuiteBuilder();
var suite = testSuiteBuilder.Build(package);
AddTestsFrom(suite);
}
private void AddTestsFrom(Test node)
{
if (!node.IsSuite)
AddTest(node);
else
{
foreach (Test test in node.Tests)
AddTestsFrom(test);
}
}
private void AddTest(Test node)
{
_testHarness.AddTest(new WrappedNUnitTest(node, TestFilter.Empty));
}
}
The above reads NUnit tests in from the current assembly wraps them up and then adds them to our inhouse test harness. I haven't included these classes but they're not really important to understanding how the NUnit code works.
The really useful bit of information here is the static to "InitialiseService" this took quite a bit of figuring out but is necessary to get the basic set of test readers loaded in NUnit. You need to be a bit careful when looking at the tests in NUnit aswell as it includes failing tests (which I assume dont work because of the number of statics involved) - so what looks like useful documentation is actually misleading.
Aside from that you can then run the tests by implementing EventListener. I was interested in getting a one to one mapping between our tests and NUnit tests so each test is run on it's own. To achieve this you just need to implement TestStarted and TestFinished to do logging:
public void TestStarted(TestName testName)
{
}
public void TestFinished(TestResult result)
{
string text;
if (result.IsFailure)
text = "Failure";
else if (result.IsError)
text = "Error";
else
return;
using (var block = CreateLogBlock(text))
{
LogFailureTo(block);
block.LogString(result.Message);
}
}
There are a couple of problems with this approach: Inherited Test base classes from other assemblies with SetUp methods that delegate to ones in the current assembly dont get called. It also has problems with TestFixtureSetup methods which are only called in NUnit when TestSuites are Run (as opposed to running test methods on their own).
These both seem to be problems with NUnit although if you dont want to construct wrapped tests individually I think you could just put in a call to suite.Run with the appropriate parameters and this will fix the latter problem