after reading this article I was sure to write my own Assertions but I failed. :-(
We have an interface which looks like this:
public class ApplicationException extends RuntimeException {
public String enhancedStatus() {
return getClass().getSimpleName();
}
}
I wrote my own EnhancedStatusAssert like described in the artile.
public class EnhancedStatusAssert extends AbstractAssert<EnhancedStatusAssert, ApplicationException> {
public EnhancedStatusAssert(ApplicationException actual) {
super(actual, EnhancedStatusAssert.class);
}
public static EnhancedStatusAssert assertThat(ApplicationException actual) {
return new EnhancedStatusAssert(actual);
}
public EnhancedStatusAssert hasEnhancedCause(String enhancedStatus) {
isNotNull();
// check condition
if (!actual.enhancedStatus().equals(enhancedStatus)) {
failWithMessage("Expected enhanced status to be <%s> but was <%s>", enhancedStatus, actual.enhancedStatus());
}
return this;
}
}
Which works fine but then I have trouble to override assertThatThrownBy
assertThatThrownBy(() -> { throw new ApplicationException()})
.isInstanceOf(ApplicationException.class)
.hasEnhancedCause("cause");
What is the way to get it to run?
Thanks,
Markus
Try using asInstanceOf https://assertj.github.io/doc/#assertj-core-3.13.0-asInstanceOf you can write your own InstanceOfAssertFactory for your ApplicationException.
If you only have one field to check you can extract it with ... extracting and chain assertions on the extracted value.
Related
I'm trying to add an annotation to some selected fields using Eclipse JDT infrastructure. However, this is not run as a plugin. I added all the required dependencies to a separate project so this can be run in batch mode. However I found out that, the ListRewrite is not inserting my annotation at the right place. I have given the code below. I initially get all the field declarations in a map using a visitor and then add them one by one using the code below.
FieldDeclaration fld = lVrblDet.listStringVarMap.get(propName);
final MarkerAnnotation autoWiredAnnotate = ast.newMarkerAnnotation(); autoWiredAnnotate.setTypeName(ast.newName("MyAnnot"));
lrw = rewriter.getListRewrite(fld, FieldDeclaration.MODIFIERS2_PROPERTY);
lrw.insertLast(autoWiredAnnotate, null);
Document document = new Document(cu.toString());
try {
TextEdit edits = rewriter.rewriteAST(document, null);
edits.apply(document);
} catch (MalformedTreeException | IllegalArgumentException | BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
However the expected output is sometimes offset by 1 character.The input and output classes have been given below.
Input Class:
#SuppressWarnings("unchecked")
public class SampleClassA {
public SampleClassB classB;
public SampleClassB getClassB() {
return classB;
}
public void setClassB(SampleClassB classB) {
this.classB = classB;
}
#Deprecated
public void printNameFromSmapleClassB() {
System.out.println(this.classB.name);
}
}
Output Class:
#SuppressWarnings("unchecked") public class SampleClassA {
p #MyAnnot
ublic SampleClassB classB;
public SampleClassB getClassB(){
return classB;
}
public void setClassB( SampleClassB classB){
this.classB=classB;
}
#Deprecated public void printNameFromSmapleClassB(){
System.out.println(this.classB.name);
}
}
As you can see in the code above, the Annotation messed with the modifier. I have tried multiple combinations of insertFirst,insertLast.Examples on the net are incomplete. Can somebody point me the mistake/the right resource ?
I just couldn't get it to work with ListRewrite. I don't know what I was doing wrong. So I wrote a visitor to store all the FieldDeclarations in a map.
#Override
public boolean visit(FieldDeclaration node) {
for (Object obj : node.fragments()) {
listStringVarMap.put(((VariableDeclarationFragment) obj).getName().toString(), node);
}
return false;
}
I looped through the map and inserted the annotation nodes as a modifiers, for the declarations that met my criteria. Please do remember to turn on recormodifications for the compilation unit you are modifying.
CompilationUnit cu = jFileAst.getEquivCompilUnit();
cu.recordModifications();
FieldDeclaration fldDecl = lVrblDet.listStringVarMap.get(propName);
importVo = (JavaAnnotImportVo) javaAstNodeCreator
.createASTNode(SpringAnnotationEnum.AutowireAnnotation, ast);
cu.imports().add(importVo.getImpDecl());
fldDecl.modifiers().add(0, importVo.getAnnotNode());
Finally write to file on disk/save back. Formatting(optional) before saving is a good idea, because the node insertions mess up with the code formatting.
I want to build a simple idea plugin, which will detect the changes of a kind of file, then convert them to another format.
Current, I use such code to do this:
VirtualFileManager.getInstance().addVirtualFileListener(new VirtualFileAdapter() {
#Override
public void contentsChanged(VirtualFileEvent event) {
// do something
}
});
It works, but not efficient.
I found this article says:
The most efficient way to listen to VFS events is to implement the BulkFileListener interface and to subscribe with it to the VirtualFileManager.VFS_CHANGES topic.
But I can't find any example to implement it. How to do that?
I guess you'll have found the answer by now, but for others it seems to work like this
public class A implements ApplicationComponent, BulkFileListener {
private final MessageBusConnection connection;
public A() {
connection = ApplicationManager.getApplication().getMessageBus().connect();
}
public void initComponent() {
connection.subscribe(VirtualFileManager.VFS_CHANGES, this);
}
public void disposeComponent() {
connection.disconnect();
}
public void before(List<? extends VFileEvent> events) {
// ...
}
public void after(List<? extends VFileEvent> events) {
// ...
}
...
}
i'm new with silverlight/ria and i have a problem wath i don't understand.
I have the following code in my domain services class
[EnableClientAccess()]
[KnownType(typeof(ModeleEmailEa))]
[KnownType(typeof(ModeleSmsEa))]
public class EAEMailDomainService : DomainService
{
#region ModeleEnvoiEa CRUD
[Query()]
public IQueryable<ModeleEnvoiEa> SelectAllModeleEnvoiEa()
{
ModeleEnvoiEaSrv modeleService = new ModeleEnvoiEaSrv();
return modeleService.GetList<ModeleEnvoiEa>();
}
[Update]
public void UpdateModeleEnvoiEa(ModeleEnvoiEa modele)
{
ModeleEnvoiEaSrv modeleService = new ModeleEnvoiEaSrv();
modeleService.Update(modele);
}
[Insert]
public void InsertModeleEnvoiEa(ModeleEnvoiEa modele)
{
ModeleEnvoiEaSrv modeleService = new ModeleEnvoiEaSrv();
modeleService.Insert(modele);
}
[Delete]
public void DeleteModeleEnvoiEa(ModeleEnvoiEa modele)
{
ModeleEnvoiEaSrv modeleService = new ModeleEnvoiEaSrv();
modeleService.Delete(modele);
}
[Invoke]
public void Test(int valeur)
{
//Do something
}
#endregion
And this code in my Silverlight application
Context.Test(2, action =>
{
// Do something
}, null);
The function SelectAll, Update, Delete , Insert work's fine but the 'Test' function generated the following error:
an attempt was made to load a program
with an incorrect format
any ideas ?
I have found that if i write the function invocation like this it's works
Context.Test(2,new System.Action<InvokeOperation<Int>>(ModeleEnvoiEa_Completed),null);
}
void ModeleEnvoiEa_Completed(InvokeOperation invoke)
{
// Do something
}
but if i use a lambda expression like this, i have an error, why ?
Context.Test(2, action =>
{
// This code generate an error
// an attempt was made to load a program with an incorrect format
}, null);
I want to intercept the creation of an instance in SM and I'm trying the following but it's not calling the InstanceInterceptor implementation, does anyone know why?
ForRequestedType<IPublishResources>()
.TheDefault
.Is
.OfConcreteType<PublisherService>()
.InterceptWith(new PublisherServiceInterceptor());
The test code uses the ObjectFactory to create instances, and is shown below:
// Given we have a configure object factory in StructureMap...
ObjectFactory.Configure(x => x.AddRegistry(new StructureMapServiceRegistry()));
// When we request a publisher service...
var publisher = ObjectFactory.GetInstance<IPublishResources>();
Cheers
AWC
I could not reproduce your problem in release 2.5.4. Here is my code.
public interface IPublishResources {}
class PublishResources : IPublishResources {}
public class LoggingInterceptor : InstanceInterceptor
{
//this interceptor is a silly example of one
public object Process(object target, IContext context)
{
Console.WriteLine("Interceptor Called");
return context.GetInstance<PublishResources>();
}
}
public class MyRegistry : Registry
{
public MyRegistry()
{
For<IPublishResources>()
.Use<PublishResources>()
.InterceptWith(new LoggingInterceptor());
}
}
[TestFixture]
public class Structuremap_interception_configuraiton
{
[Test]
public void connecting_implementations()
{
var container = new Container(cfg =>
{
cfg.AddRegistry<MyRegistry>();
});
container.GetInstance<IPublishResources>();
}
}
A question. Do you really need to use an Interceptor here? If you only need to define a factory you can do somethign like this.
public interface IPublishResourcesFactory
{
IPublishResources Create();
}
public class MyRegistry : Registry
{
public MyRegistry()
{
For<IPublishResources>().Use(c =>
{
return c.GetInstance<IPublishResourcesFactory>().Create();
});
//or
For<IPublishResources>().Use(c =>
{
//other object building code.
return new PublishResources();
});
}
}
How would you refactor these two classes to abstract out the similarities? An abstract class? Simple inheritance? What would the refactored class(es) look like?
public class LanguageCode
{
/// <summary>
/// Get the lowercase two-character ISO 639-1 language code.
/// </summary>
public readonly string Value;
public LanguageCode(string language)
{
this.Value = new CultureInfo(language).TwoLetterISOLanguageName;
}
public static LanguageCode TryParse(string language)
{
if (language == null)
{
return null;
}
if (language.Length > 2)
{
language = language.Substring(0, 2);
}
try
{
return new LanguageCode(language);
}
catch (ArgumentException)
{
return null;
}
}
}
public class RegionCode
{
/// <summary>
/// Get the uppercase two-character ISO 3166 region/country code.
/// </summary>
public readonly string Value;
public RegionCode(string region)
{
this.Value = new RegionInfo(region).TwoLetterISORegionName;
}
public static RegionCode TryParse(string region)
{
if (region == null)
{
return null;
}
if (region.Length > 2)
{
region = region.Substring(0, 2);
}
try
{
return new RegionCode(region);
}
catch (ArgumentException)
{
return null;
}
}
}
It depends, if they are not going to do much more, then I would probably leave them as is - IMHO factoring out stuff is likely to be more complex, in this case.
Unless you have a strong reason for refactoring (because you are going to add more classes like those in near future) the penalty of changing the design for such a small and contrived example would overcome the gain in maintenance or overhead in this scenario. Anyhow here is a possible design based on generic and lambda expressions.
public class TwoLetterCode<T>
{
private readonly string value;
public TwoLetterCode(string value, Func<string, string> predicate)
{
this.value = predicate(value);
}
public static T TryParse(string value, Func<string, T> predicate)
{
if (value == null)
{
return default(T);
}
if (value.Length > 2)
{
value = value.Substring(0, 2);
}
try
{
return predicate(value);
}
catch (ArgumentException)
{
return default(T);
}
}
public string Value { get { return this.value; } }
}
public class LanguageCode : TwoLetterCode<LanguageCode> {
public LanguageCode(string language)
: base(language, v => new CultureInfo(v).TwoLetterISOLanguageName)
{
}
public static LanguageCode TryParse(string language)
{
return TwoLetterCode<LanguageCode>.TryParse(language, v => new LanguageCode(v));
}
}
public class RegionCode : TwoLetterCode<RegionCode>
{
public RegionCode(string language)
: base(language, v => new CultureInfo(v).TwoLetterISORegionName)
{
}
public static RegionCode TryParse(string language)
{
return TwoLetterCode<RegionCode>.TryParse(language, v => new RegionCode(v));
}
}
This is a rather simple question and to me smells awefully like a homework assignment.
You can obviously see the common bits in the code and I'm pretty sure you can make an attempt at it yourself by putting such things into a super-class.
You could maybe combine them into a Locale class, which stores both Language code and Region code, has accessors for Region and Language plus one parse function which also allows for strings like "en_gb"...
That's how I've seen locales be handled in various frameworks.
These two, as they stand, aren't going to refactor well because of the static methods.
You'd either end up with some kind of factory method on a base class that returns an a type of that base class (which would subsequently need casting) or you'd need some kind of additional helper class.
Given the amount of extra code and subsequent casting to the appropriate type, it's not worth it.
Create a generic base class (eg AbstractCode<T>)
add abstract methods like
protected T GetConstructor(string code);
override in base classes like
protected override RegionCode GetConstructor(string code)
{
return new RegionCode(code);
}
Finally, do the same with string GetIsoName(string code), eg
protected override GetIsoName(string code)
{
return new RegionCode(code).TowLetterISORegionName;
}
That will refactor the both. Chris Kimpton does raise the important question as to whether the effort is worth it.
I'm sure there is a better generics based solution. But still gave it a shot.
EDIT: As the comment says, static methods can't be overridden so one option would be to retain it and use TwoLetterCode objects around and cast them, but, as some other person has already pointed out, that is rather useless.
How about this?
public class TwoLetterCode {
public readonly string Value;
public static TwoLetterCode TryParseSt(string tlc) {
if (tlc == null)
{
return null;
}
if (tlc.Length > 2)
{
tlc = tlc.Substring(0, 2);
}
try
{
return new TwoLetterCode(tlc);
}
catch (ArgumentException)
{
return null;
}
}
}
//Likewise for Region
public class LanguageCode : TwoLetterCode {
public LanguageCode(string language)
{
this.Value = new CultureInfo(language).TwoLetterISOLanguageName;
}
public static LanguageCode TryParse(string language) {
return (LanguageCode)TwoLetterCode.TryParseSt(language);
}
}