I am developing a Grails (v. 2.2.1) application that loads several Grails plugins. I would like to inspect such plugins at startup through some code in my Bootstrap.groovy.
For each plugin I would like to inspect the services and detect implemented interfaces so that I know, for each service, what features are available.
I’ve started with the following code that inspects only those plugins whose name match a particular pattern.:
def pluginManager = PluginManagerHolder.getPluginManager();
pluginManager.getAllPlugins().each {
if(it.name.startsWith("cn") && it.name.endsWith("Connector")) {
…
String serviceName = ….
…
Object service = ctx.getBean(serviceName);
println “Service:” + service /
Class[] ints1 = GrailsClassUtils.getAllInterfaces(service);
Class[] ints2 = GrailsClassUtils.getAllInterfacesForClass(service.getClass());
…
}
}
The println returns the service object, which seems existing in the form I was expecting.
Then I’ve tried the two lines/alternatives of code after and both fail.
The first one returns:
No signature of method: static org.codehaus.groovy.grails.commons.GrailsClassUtils.getAllInterfaces() is applicable for argument types: (…) …
The second one returns:
No signature of method: static org.codehaus.groovy.grails.commons.GrailsClassUtils.getAllInterfacesForClass() is applicable for argument types: (java.lang.Class) …
The second alternative is a little puzzling as the signature of the method is
getAllInterfacesForClass(java.lang.Class clazz)
Two questions:
Is this a viable method to find out what the services implements?
What am I missing in relation to GrailsClassUtils?
Related
I implemented vimeo networking using vimeo networking library(https://github.com/vimeo/vimeo-networking-java), exoplayer and explained in this post https://stackoverflow.com/a/65737556/8814924
Now the problem is when I was checking with API 30 it was getting error
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.emergingit.emergingstudy/com.emergingit.emergingstudy.activities.course.ExoPlayerActivity}: java.lang.IllegalStateException: Unable to extract the trust manager on Android10Platform, sslSocketFactory is class com.android.org.conscrypt.OpenSSLSocketFactoryImpl
Caused by: java.lang.IllegalStateException: Unable to extract the trust manager on Android10Platform, sslSocketFactory is class com.android.org.conscrypt.OpenSSLSocketFactoryImpl
which indicates the error on
VimeoClient.initialize(configuration);
which issue is dicscussed here : https://github.com/square/okhttp/issues/5878 , issue discussion :
I assume you are calling the deprecated form of sslSocketFactory, which is broken on newer Android versions. https://github.com/square/okhttp/blob/master/okhttp/src/main/java/okhttp3/OkHttpClient.kt#L719
/**
* Sets the socket factory used to secure HTTPS connections. If unset, the system default will
* be used.
*
* #deprecated [SSLSocketFactory] does not expose its [X509TrustManager], which is a field that
* OkHttp needs to build a clean certificate chain. This method instead must use reflection
* to extract the trust manager. Applications should prefer to call
* `sslSocketFactory(SSLSocketFactory, X509TrustManager)`, which avoids such reflection.
*/
#Deprecated(
message = "Use the sslSocketFactory overload that accepts a X509TrustManager.",
level = DeprecationLevel.ERROR
)
fun sslSocketFactory(sslSocketFactory: SSLSocketFactory) = apply {
if (sslSocketFactory != this.sslSocketFactoryOrNull) {
this.routeDatabase = null
}
this.sslSocketFactoryOrNull = sslSocketFactory
this.certificateChainCleaner = Platform.get().buildCertificateChainCleaner(sslSocketFactory)
}
is there any solution possible with using the current version "1.1.3" of networking library for this or I have to wait till the library update ?
I primarily Solved the problem for Vimeo video streaming on the Android 10 platform using the Vimeo-Networking library (v1.1.3).
as the main problem is in the OkHttpClient build method
builder.sslSocketFactory(sSLSocketFactory);
//RetrofitClientBuilder.java#186
where with 1 parameter version is depricated and I needed to pass X509TTrustManager as 2nd parameter like this :
builder.sslSocketFactory(sSLSocketFactory, new X509TrustManager() {
#Override
public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
#Override
public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
#Override
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
});
So it solved my problem till this update comes in the stable version of this library. How I implemented this is described below :
Error was showing on VimeoClient.initialize(accessToken); line and I searched about the error and find out that it is caused because of this OkHttpClient method deprecation (with 1 parameter).
So I went into VimeoClient.java and saw in its constructor private Retrofit createRetrofit() was called and inside it private OkHttpClient createOkHttpClient() was called. and there public class RetrofitClientBuilder object was created and it's problemetic method was public OkHttpClient build() in which : if (sSLSocketFactory != null) { builder.sslSocketFactory(sSLSocketFactory); }
this deprecated method was called.
So I just had to create 2 new java file with name VimeoClientUpdated.java and RetrofitClientBuilderUpdated.java which is just a renamed copy of VimeoClient.java and RetrofitClientBuilder.java and now my RetrofitClientBuilderUpdated.java has no deprecated method rather the correct and VimeoClientUpdated.java is calling RetrofitClientBuilderUpdated.java
(I couldn't extend because of the final class and couldn't even wrap the class as to the gateway to that solution, I had to face the private method which wasn't possible to alter in wrapper class)
and finally just instead of calling VimeoClient.initialize(accessToken) I am calling my newly created VimeoClientUpdated(accessToken) which won't crash while playing Vimeo video on Android 10.
Suggest me if there is a better way of serving my purpose (solving deprecated library method calling from the android activity).
Cheers..!!
In a SpringBoot application, I have the following configuration:
axon:
axonserver:
servers: "${AXON_SERVER:localhost}"
serializer:
general: jackson
messages: jackson
events: jackson
logging.level:
org.axonframework.modelling.saga: debug
Downsizing the scenario to bare minimum, the relevant portion of Saga class:
#Slf4j
#Saga
#ProcessingGroup("AuctionEventManager")
public class AuctionEventManagerSaga {
#Autowired
private transient EventScheduler eventScheduler;
private ScheduleToken scheduleToken;
private Instant auctionTimerStart;
#StartSaga
#SagaEventHandler(associationProperty = "auctionEventId")
protected void on(final AuctionEventScheduled event) {
this.auctionTimerStart = event.getTimerStart();
// Cancel any pre-existing previous job, since the scheduling thread might be lost upon a crash/restart of JVM.
if (this.scheduleToken != null) {
this.eventScheduler.cancelSchedule(this.scheduleToken);
}
this.scheduleToken = this.eventScheduler.schedule(
this.auctionTimerStart,
AuctionEventStarted.builder()
.auctionEventId(event.getAuctionEventId())
.build()
);
}
#EndSaga
#SagaEventHandler(associationProperty = "auctionEventId")
protected void on(final AuctionEventStarted event) {
log.info(
"[AuctionEventManagerSaga] Current state: {scheduleToken={}, auctionTimerStart={}}",
this.scheduleToken,
this.auctionTimerStart
);
}
}
In the final compiled class, we will end up having 4 properties: log (from #Slf4j), eventScheduler (transient, #Autowired), scheduleToken and auctionTimerStart.
For reference information, here is a sample of the general approach I've been using for both Command and Event classes:
#Value
#Builder
#JsonDeserialize(builder = AuctionEventStarted.AuctionEventStartedBuilder.class)
public class AuctionEventStarted {
AuctionEventId auctionEventId;
#JsonPOJOBuilder(withPrefix = "")
public static final class AuctionEventStartedBuilder {}
}
When executing the code, you get the following output:
2020-05-12 15:40:01.180 DEBUG 1 --- [mandProcessor-4] o.a.m.saga.repository.jpa.JpaSagaStore : Updating saga id c8aff7f7-d47f-4616-8a96-a40044cb7e3b as {}
As soon as the general serializer is changed to xstream, the content is serialized properly, but I face another issue during deserialization, since I have private static final class Builder classes using Lombok.
So is there a way for Axon to handle these scenarios:
1- Axon to safely manage Jackson to ignore #Autowired, transient and static properties from #Saga classes? I've attempted to manually define #JsonIgnore at non-state properties and it still didn't work.
2- Axon to safely configure XStream to ignore inner classes (mostly Builder classes implemented as private static final)?
Thanks in advance,
EDIT: I'm pursuing a resolution using my preferred serializer: JSON. I attempted to modify the saga class and extend JsonSerializer<AuctionEventManagerSaga>. For that I implemented the methods:
#Override
public Class<AuctionEventManagerSaga> handledType() {
return AuctionEventManagerSaga.class;
}
#Override
public void serialize(
final AuctionEventManagerSaga value,
final JsonGenerator gen,
final SerializerProvider serializers
) throws IOException {
gen.writeStartObject();
gen.writeObjectField("scheduleToken", value.eventScheduler);
gen.writeObjectField("auctionTimerStart", value.auctionTimerStart);
gen.writeEndObject();
}
Right now, I have something being serialized, but it has nothing to do with the properties I've defined:
2020-05-12 16:20:01.322 DEBUG 1 --- [mandProcessor-0] o.a.m.saga.repository.jpa.JpaSagaStore : Storing saga id c4b5d94c-7251-40a5-accf-332768b1cacd as {"delegatee":null,"unwrappingSerializer":false}
EDIT 2 Decided to add more insight into the issue I experience when I switch general to use XStream (even though it's somewhat unrelated to the main issue described in the title).
Here is the issue it complains to me:
2020-05-12 17:08:06.495 DEBUG 1 --- [ault-executor-0] o.a.a.c.command.AxonServerCommandBus : Received command response [message_identifier: "79631ffb-9a87-4224-bed3-a957730dced7"
error_code: "AXONIQ-4002"
error_message {
message: "No converter available\n---- Debugging information ----\nmessage : No converter available\ntype : jdk.internal.misc.InnocuousThread\nconverter : com.thoughtworks.xstream.converters.reflection.ReflectionConverter\nmessage[1] : Unable to make field private static final jdk.internal.misc.Unsafe jdk.internal.misc.InnocuousThread.UNSAFE accessible: module java.base does not \"opens jdk.internal.misc\" to unnamed module #7728643a\n-------------------------------"
location: "1#600b5b87a922"
details: "No converter available\n---- Debugging information ----\nmessage : No converter available\ntype : jdk.internal.misc.InnocuousThread\nconverter : com.thoughtworks.xstream.converters.reflection.ReflectionConverter\nmessage[1] : Unable to make field private static final jdk.internal.misc.Unsafe jdk.internal.misc.InnocuousThread.UNSAFE accessible: module java.base does not \"opens jdk.internal.misc\" to unnamed module #7728643a\n-------------------------------"
}
request_identifier: "2f7020b1-f655-4649-bbe0-d6f458b3c2f3"
]
2020-05-12 17:08:06.505 WARN 1 --- [ault-executor-0] o.a.c.gateway.DefaultCommandGateway : Command 'ACommandClassDispatchedFromSaga' resulted in org.axonframework.commandhandling.CommandExecutionException(No converter available
---- Debugging information ----
message : No converter available
type : jdk.internal.misc.InnocuousThread
converter : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
message[1] : Unable to make field private static final jdk.internal.misc.Unsafe jdk.internal.misc.InnocuousThread.UNSAFE accessible: module java.base does not "opens jdk.internal.misc" to unnamed module #7728643a
-------------------------------)
Still no luck on resolving this...
I've worked on Axon systems where the only used Serializer implementation was the JacksonSerializer too. Mind you though, this is not what the Axon team recommends. For messages (i.e. commands, events and queries) it makes perfect sense to use JSON as the serialized format. But switching the general Serializer to jackson means you have to litter your domain logic (e.g. your Saga) with Jackson specifics "to make it work".
Regardless, backtracking to my successful use case of jackson-serialized-sagas. In this case we used the correct match of JSON annotations on the fields we desired to take into account (the actual state) and to ignore the one's we didn't want deserialized (with either transient or #JsonIgnore). Why both do not seem to work in your scenario is not entirely clear at this stage.
What I do recall is that the referenced project's team very clearly decided against Lombok due to "overall weirdnes" when it comes to de-/serialization. As a trial it thus might be worth to not use any Lombok annotations/logic in the Saga class and see if you can de-/serialize it correctly in such a state.
If it does work at that moment, I think you have found your culprit for diving in further search.
I know this isn't an exact answer, but I hope it helps you regardless!
Might be worthwhile to share the repository where this problems occurs in; might make the problem clearer for others too.
I was able to resolve the issue #2 when using XStream as general serializer.
One of the Sagas had an #Autowired dependency property that was not transient.
XStream was throwing some cryptic message, but we managed to track the problem and address it.
As for JSON support, we had no luck. We ended up switched everything to XStream for now, as the company only uses Java and it would be ok to decode the events using XStream.
Not the greatest solution, as we really wanted (and hoped) JSON would be supported properly out of the box. Mind you, this is in conjunction with using Lombok which caused for the nuisance in this case.
I have the gRPC server code as below:
public void buildServer() {
List<BindableService> theServiceList = new ArrayList<BindableService>();
theServiceList.add(new CreateModuleContentService());
theServiceList.add(new RemoveModuleContentService());
ServerBuilder<?> sb = ServerBuilder.forPort(m_port);
for (BindableService aService : theServiceList) {
sb.addService(aService);
}
m_server = sb.build();
}
and client code as below:
public class JavaMainClass {
public static void main(String[] args) {
CreateModuleService createModuleService = new CreateModuleService();
ESDStandardResponse esdReponse = createModuleService.createAtomicBlock("8601934885970354030", "atm1");
RemoveModuleService moduleService = new RemoveModuleService();
moduleService.removeAtomicBlock("8601934885970354030", esdReponse.getId());
}
}
While I am running the client I am getting an exception as below:
Exception in thread "main" io.grpc.StatusRuntimeException: UNIMPLEMENTED: Method grpc.blocks.operations.ModuleContentServices/createAtomicBlock is unimplemented
at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:233)
at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:214)
at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:139)
In the above server class, if I am commenting the line theServiceList.add(new RemoveModuleContentService()); then the CreateModuleContentService service is working fine, also without commenting all the services of RemoveModuleContentService class are working as expected, which means the problem is with the first service when another gets added.
Can someone please suggest how can I add two services to Server Builder.
A particular gRPC service can only be implemented once per server. Since the name of the gRPC service in the error message is ModuleContentServices, I'm assuming CreateModuleContentService and RemoveModuleContentService both extend ModuleContentServicesImplBase.
When you add the same service multiple times, the last one wins. The way the generated code works, every method of a service is registered even if you don't implement that particular method. Every service method defaults to a handler that simply returns "UNIMPLEMENTED: Method X is unimplemented". createAtomicBlock isn't implemented in RemoveModuleContentService, so it returns that error.
If you interact with the ServerServiceDefinition returned by bindService(), you can mix-and-match methods a bit more, but this is a more advanced API and is intended more for frameworks to use because it can become verbose to compose every application service individually.
TL;DR: I commented on this issue and got asked to open a new ticket, but then realized this is more of a question as Spring RestDocs provides a way to achieve what I want (ignoring unimportant headers in contracts) with operation preprocessor. So here we are, on our friendly SoF
The problem is I am trying to generate contracts starting from a RestDocs test (using RestAssured and junit5 if it matters). Test setup (in Kotlin) looks like:
private val defaultDocument = document("{method_name}", SpringCloudContractRestDocs.dslContract())
lateinit var spec: RequestSpecification
#BeforeEach
internal fun setUp(restDocumentationContextProvider: RestDocumentationContextProvider) {
RestAssured.port = port
spec = RequestSpecBuilder()
.setConfig(
RestAssuredConfig.config()
.objectMapperConfig(
ObjectMapperConfig.objectMapperConfig()
.jackson2ObjectMapperFactory { _, _ -> mapper }
)
)
.addFilter(defaultDocument)
.addFilter(ResponseLoggingFilter())
.log(LogDetail.ALL)
.build()
}
where mapper and port are injected as Spring beans.
The server generates a Date header, which is the time when the response is generated. This is done automatically by Spring WebMvc (I think) and I don't care at all for that header. However, the Date header causes stub generation to fail, as I decided to use Spring Cloud Contracts in a polyglot world approach to generate and upload stub to maven repository, because now the server generates a different date.
As I point out here, the ContractDslSnippet does not seem to provide a way to ignore unimportant headers and/or to add matchers (which would still an open question).
The (short) list of questions:
How can I filter out unimportant headers from generated contracts?
Can I add custom matchers for headers, like I can do for body?
How to remove unimportant header, using Spring RestDocs preprocessors:
private val defaultDocument = document("{method_name}", SpringCloudContractRestDocs.dslContract())
lateinit var spec: RequestSpecification
#BeforeEach
internal fun setUp(restDocumentationContextProvider: RestDocumentationContextProvider) {
RestAssured.port = port
spec = RequestSpecBuilder()
.setConfig(
RestAssuredConfig.config()
.objectMapperConfig(
ObjectMapperConfig.objectMapperConfig()
.jackson2ObjectMapperFactory { _, _ -> mapper }
)
)
.addFilter(
documentationConfiguration(restDocumentationContextProvider)
.operationPreprocessors()
.withResponseDefaults(Preprocessors.removeMatchingHeaders("Date"))
)
.addFilter(defaultDocument)
.addFilter(ResponseLoggingFilter())
.log(LogDetail.ALL)
.build()
}
The important part is adding a new filter (the first one), which takes care of configuring Spring RestDocs to remove the Date from all its snippets, including the contract ones.
How to add custom matchers, using the default SpringCloudContractRestDocs.dslContract(): I don't think it is actually possible right now, but might be wrong here (glad if somebody can chime in and correct me in case)
I need to сlarify.
I have .net mvc app and I use Microsoft/aspnet-api-versioning (for ASP.NET Core).
And I have 2 controllers:
[ApiVersion("1.0")]
[Route("[controller]")]
public class OneController : Controller
{
[HttpGet]
public string Get()
{
return "Hello. I'm OneController";
}
}
and
[ApiVersion("1.1")]
[Route("[controller]")]
public class TwoController : Controller
{
[HttpGet]
public string Get()
{
return "Hello. I'm TwoController";
}
}
TwoController I added after release API with OneController.
And now if I try to use "http://localhost:59719/One?api-version=1.1" i see error:
The HTTP resource that matches the request URI 'http://localhost:59719/test?api-version=1.1' does not support the API version '1.1'.
Should I use different versions for different controllers or there is way to use one (latest) version for any request?
I understand I can add [ApiVersion("1.1")] to ALL controllers, but if I have 20 controllers...
Thanks for help.
You can define a default api version using the ApiVersioningOptions class and use this default version if none is specified:
`services.AddApiVersioning(o =>
{
o.AssumeDefaultVersionWhenUnspecified = true;
o.DefaultApiVersion = new ApiVersion(1 , 0);
});`
Besides, you should take a look at this excellent post on API versioning in ASP.NET from Scott Hanselman:
https://www.hanselman.com/blog/ASPNETCoreRESTfulWebAPIVersioningMadeEasy.aspx
In your example above, you have two different controllers with two different API versions. There is no direct relationship between these two. If you're trying to apply API versions in a centralized manner, you can achieve this using the Conventions API. You can even author and apply your own conventions via the IControllerConvention interface.
// same result as the attributes above
options.Conventions.Controller<OneController>().HasVersion(1,0);
options.Conventions.Controller<TwoController>().HasVersion(1,1);
// can also be achieved using only controller types
options.Conventions.Controller(typeof(OneController)).HasVersion(1,0);
options.Conventions.Controller(typeof(TwoController)).HasVersion(1,1);
// register your own convention that applies API versions to all controllers
options.Conventions.Add(new MyCustomApiVersionConvention());
You can also use an approach similar to what #arnaudauroux suggested, which would be:
services.AddApiVersioning(options =>
{
options.AssumeDefaultVersionWhenUnspecified = true;
options.ApiVersionSelector = new CurrentImplementationApiVersionSelector(options);
});
Now any request without an API version will select the current (or highest) API version available. Beware that this could break clients.