I am trying to integrate JCache from Infinispan into my existing EJB project.
I have added Infinispan 5.0.1 CDI and Core packages to Maven pom.
Added Infinispan Interceptors in beans.xml and able to use the CacheResult annotation.
I am deploying the app in Glassfish 3.1.1. I have checked the Weld jar version, which is
Module : org.jboss.weld.osgi-bundle:1.1.1.Final
In the runtime, the CacheResult Method interceptor is not caching the method result and its always called.
My code looks like this,
public void cacheTest() {
Thread.currentThread().setContextClassLoader(
this.getClass().getClassLoader());
EmbeddedCacheManager manager = createCacheConfig();
Set<String> cacheList = manager.getCacheNames(); // new
// DefaultCacheManager().getCacheNames();
for (String cache : cacheList) {
System.out.println("Cache name " + cache);
}
defaultCache = manager.getCache("test-cache");
defaultCache.put("aa", "AA");
String user = "User";
greet(user);
Set<String> keys = defaultCache.keySet();
for (String key : keys) {
System.out.println("Key is -" + key + "Value is -"
+ defaultCache.get(key));
}
}
#CacheResult(cacheName = "test-cache")
public String greet(#CacheKeyParam String user) {
user += "Hello";
return user;
}
public EmbeddedCacheManager createCacheConfig() {
EmbeddedCacheManager manager = new DefaultCacheManager();
Configuration conf = new Configuration();
conf.fluent().eviction().strategy(EvictionStrategy.FIFO).maxEntries(10)
.expiration().maxIdle(1200000L).build();
conf.fluent().clustering().sync();
manager.start();
manager.defineConfiguration("test-cache", conf);
return manager;
}
greet() method gets called but it will never add the method result to the test-cache. I feel am I missing some configuration or...I dont know. Please help me on this.
when I Inject the classes, they wont get constructed and they are null. The code is like this,
#Inject
private static org.infinispan.Cache<String, String> defaultCache;
#Inject
private static EmbeddedCacheManager defaultCacheManager;
These gets executed without any error, but they wont get initialized.
I have no clue...But I am able to inject other EJBs with in this class easily. By the way I am trying to add Jcache functionality in one of EJBs.
I would appreciate your help...
Thanks...
Raj S
Your greet method is in a CDI bean or in an EJB, right?
The cache defined in JCache annotations is looked up in the cache manager provided by Infinispan CDI. This cache manager contains the cache configured with CDI (for more information, see https://docs.jboss.org/author/display/ISPN/CDI+Support). In your example the test-cache configuration will have no effect.
Another thing, if your cacheTest and greet methods are in the same class the greet method cannot be intercepted. If that's not the case maybe you're hitting GLASSFISH-17184.
For the Cache and EmbeddedCacheManager injections the problem is that you're doing a static injection, not supported by CDI. From CDI (JSR-299) specification
An injected field is a non-static, non-final field of a bean class, or of any Java EE component class supporting injection.
If your method result is not cached, I think it's because the CacheResultInterceptor is not called. I've just made the test with the Infinispan CDI quickstart. If the interceptors are in a lib they are not enabled. I think it's a bug in Glassfish.
Btw, you can see an example of code in the Infinispan CDI quickstart here.
Hope this help!
Related
I have a Quarkus application that makes use of caches for methods.
These methods and cache eviction got to be tested somehow preferably when Quarkus context is fully operational.
This is what I figured (PostgresContainer for reference):
#QuarkusTest
class ScreeningRepositorySpec : PostgresContainer() {
private val cacheManager = CaffeineCacheSupplier().get()
init {
"test cache manager gets initialized" {
logger().info("Cache size: {}", cacheManager.size)
}
}
}
The problem arises when any kind of invocation happens for cacheManager: it fires NPE. https://github.com/im-infamou5/quarkus-cache-playground
Downstream code as follows is
#Override
public List<CaffeineCache> get() {
CacheManager cacheManager = cacheManager();
...
}
which ultimately yields:
public static CacheManager cacheManager() {
return Arc.container().instance(CacheManager.class).get();
}
And here comes that Arc.container() is null somehow.
What else was tried:
#QuarkusIntegrationTest - no bean for injection, null for arc container
Explicit #Inject for CacheManager - yields "no bean matches injection point"
Explicit Cache definition with manual CacheManager instantiation - same issue with null arc container
Variations for #Inject for default bean injection - same things about missing injection point
Looks like CacheManager bean lifecycle issue that expects it way too early and never succeeds as a result.
I've dug into quarkus tests which have quite a workaround but still hope easier approach is available to avoid this much dependensies just to test cache properly.
Version of Quarkus is 2.7.0.
Sample project can be found here with simple type of direct injection.
Output as follows:
org.acme.GreetingResourceIT > test cache size FAILED
kotlin.UninitializedPropertyAccessException at GreetingResourceIT.kt:11
Caused by: kotlin.UninitializedPropertyAccessException at GreetingResourceIT.kt:11
I just got swagger to produces a valid swagger.json.
I configured swagger by using the Application-config method.
However, as soon as I override the getClasses-Method to add the swagger resouces, my JAX-RS Path-annotated classes stop working.
The method looks like this
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> resources = new HashSet<>();
resources.add(io.swagger.jaxrs.listing.ApiListingResource.class);
resources.add(io.swagger.jaxrs.listing.SwaggerSerializers.class);
return resources;
}
and invoking super.getClasses() returns am empty set.
I got too many resources in my project, which I would not like to add manually.
Is there any way swagger does not mess with my previous configuration?
Thank you!
You can use a javax.ws.rs.core.Feature. Just register the classes through the callback's FeatureContext. Annotating the feature with #Provider will have it registered through the scanning.
#Provider
public class SwaggerFeature implements Feature {
#Override
public boolean configure(FeatureContext context) {
context.register(ApiListingResource.class);
context.register(SwaggerSerializers.class);
return true;
}
}
But note that if the application is already registering the resources and providers by class-path scanning, I imagine it should also pick up the Swagger classes, as they are annotated with #Path[1] and #Provider[2]. Those are the annotations the class-path scan looks for.
I haven't tried it myself (I stopped using class-path scanning[3]), but have you tried just not registering them at all? In theory the class-path scan should pick it up.
1. io.swagger.jaxrs.listing.ApiListingResource
2. io.swagger.jaxrs.listing.SwaggerSerializers
3. When to Use JAX-RS Class-path Scanning Mechanism
I am working on the spring data rest services & facing some issue in the custom interceptors. Earlier I used spring-data-rest-webmvc 2.2.0 & added interceptor in following way.
public RequestMappingHandlerMapping repositoryExporterHandlerMapping() {
RequestMappingHandlerMapping mapping = super
.repositoryExporterHandlerMapping();
mapping.setInterceptors(new Object[] { new MyInterceptor() });
return mapping;
}
It worked perfectly fine for me. But when i upgraded to spring-data-rest-webmvc 2.3.0 version, I noticed that handlerMapping is hidden behind DelegatingHandlerMapping. Hence I tried to add interceptor in following way.
In one of my config class I have extended RepositoryRestMvcConfiguration class & override its method.
public class AppConfig extends RepositoryRestMvcConfiguration {
#Autowired ApplicationContext applicationContext;
#Override
public DelegatingHandlerMapping restHandlerMapping()
{
RepositoryRestHandlerMapping repositoryMapping = new RepositoryRestHandlerMapping(super.resourceMappings(), super.config());
repositoryMapping.setInterceptors(new Object[] { new MyInterceptor()});
repositoryMapping.setJpaHelper(super.jpaHelper());
repositoryMapping.setApplicationContext(applicationContext);
repositoryMapping.afterPropertiesSet();
BasePathAwareHandlerMapping basePathMapping = new BasePathAwareHandlerMapping(super.config());
basePathMapping.setApplicationContext(applicationContext);
basePathMapping.afterPropertiesSet();
List<HandlerMapping> mappings = new ArrayList<HandlerMapping>();
mappings.add(basePathMapping);
mappings.add(repositoryMapping);
return new DelegatingHandlerMapping(mappings);
}
}
But after adding this some of my repository operations (findAll() operation on repository) start failing. If I removed this interceptors those operations worked fine. (In this interceptor I am just authenticate the user.)
Hence I am unable to understand problem here. Am I adding the interceptor in wrong way? Is there any other way to add the interceptor?
You should not use repositoryMapping.setInterceptors() - it destoys the internal interceptors Spring placed there, and that's probably the reason some methods stopped working.
I suggest you override jpaHelper() method and put your interceptors into the JpaHelper object in RepositoryRestMvcConfiguration. Spring will should them to the global interceptor list.
But, again, if all you need is authentication, why not use a Spring Security filter?
EDIT: the solution above works only for RepositoryRestHandlerMapping, not for BasePathAwareHandlerMapping.
I suggest you declare a custom MappedInterceptor bean somewhere:
#Bean
public MappedInterceptor myMappedInterceptor() {
return new MappedInterceptor(new String[]{"/**"}, new MyInterceptor());
}
From my understanding of the source code Spring should automatically add this interceptor to all request handlers.
I am writing integration tests using Arquillian with embedded glassfish 3.1.2.2 using TestNG. I want to be able to run those tests in parallel, and for this case i need to dynamically configure glassfish ports and database name (we already have this set-up, and I want to reuse it of arquillian tests). What I am missing is a 'before container start' hook, where I could prepare the database, lookup free ports and update my glassfish configuration (domain.xml, could also be glassfish-resources.xml). Is there a 'clean' solution for this, or my usecase was not foreseen by Arquillian developers?
The hacky way I solved it currently is to override arquillian's beforeSuite method but this one gets called twice - at test startup and then in the container (therefore my pathetic static flag). Secondly, this solution would not work for JUnit based tests as there's no way to intercept arquillian's before suite:
public class FullContainerIT extends Arquillian {
private static boolean dbInitialized;
//#RunAsClient <-supported by #Test only
#Override
#BeforeSuite(groups = "arquillian", inheritGroups = true)
public void arquillianBeforeSuite() throws Exception {
if (dbInitialized == false) {
initializeDb();
dbInitialized = true;
}
super.arquillianBeforeSuite();
}
}
Some ideas I had:
+ having #BeforeSuite #RunAsClient seems to be what I need, but #RunAsClient is supported for #Test only;
+ I have seen org.jboss.arquillian.container.spi.event.container.BeforeStart event in Arquillian JavaDocs, but I have no clue how to listen to Arquillian events;
+ I have seen there is a possibility to have #Deployment creating a ShrinkWrap Descriptor, but these do not support Glassfish resources.
I found a clean solution for my problem on JBoss forum. You can register a LoadableExtension SPI and modify the arquillian config (loaded from xml). This is where I can create a database and filter glassfish-resources.xml with proper values. The setup looks like this:
package com.example.extenstion;
public class AutoDiscoverInstanceExtension
implements org.jboss.arquillian.core.spi.LoadableExtension {
#Override
public void register(ExtensionBuilder builder) {
builder.observer(LoadContainerConfiguration.class);
}
}
package com.example.extenstion;
public class LoadContainerConfiguration {
public void registerInstance(#Observes ContainerRegistry, ServiceLoader serviceLoader) {
//Do the necessary setup here
String filteredFilename = doTheFiltering();
//Get the container defined in arquillian.xml and modify it
//"default" is the container's qualifier
Container definition = registry.getContainer("default");
definition.getContainerConfiguration()
.property("resourcesXml", filteredFilename);
}
}
You also need to configure the SPI Extension by creating a file
META-INF/services/org.jboss.arquillian.core.spi.LoadableExtension
with this contents:
com.example.extenstion.AutoDiscoverInstanceExtension
I've got a problem exxh EJB's.
First of all, my setup: I am using GlassFish & JEE6. I have got a REST-Service packaged as a WAR and a bean packaged as an EJB-Jar. They are not inside an EAR.
The EJB should be used from the REST-WAR via #EJB, but when I try to deploy the WAR, GlassFish shows this error:
Error occurred during deployment:
Exception while deploying the app [exx-upload-1.0] : Cannot resolve reference Local ejb-ref name=com.ex.exx.model.FileUpload/ocr,Local 3.x interface =com.ex.exx.api.IOCRService,ejb-link=null,lookup=,mappedName=,jndi-name=,refType=Session. Please see server.log for more details.
(The EJB was deployed before without any erros).
I have no clue why. Here is the EJB Code:
Interface:
#Local
public interface IOCRService {
public String performOCRonImage(BufferedImage input);
}
and Implementation:
#Stateless
#LocalBean
public class OCRScanner implements IOCRService {
private Logger logger = Logger.getLogger(this.getClass().getName());
private final static String NOT_RECOGNIZED = "Can not regocnize text";
/**
* Default constructor.
*/
public OCRScanner() {
logger.log(Level.INFO, "### OCR SCANNER BUILD" + this);
}
public String performOCRonImage(BufferedImage input) {
logger.log(Level.INFO, "### OCR SCANNER CALLED" + this);
}
...
And here is the important part in the WAR:
public class FileUpload {
private final File PROPERTIES_FILE = new File(
"fileUploadProperties.properties");
private final String PARAMETER_NAME = "file";
private final Logger logger = Logger.getLogger(this.getClass().getName());
#EJB
private IOCRService ocr;
public Response uploadFile(...) {
// do some stuff
logger.log(Level.INFO, "### EJB" + ocr.toString())
}
Anny suggestions? I can not find my failure here.
Solved this, by replaceing #Local with #Remote.
This works, however, I am not satisfied as I do not understand why.
Basically, given the specs (eg. explained in the tutorial), an application can only access other application's EJB, if they are decorated with #Remote.
Thus, you have 3 options:
decorate your EJB with #Remote (what you have done),
package both together inside an ear (as they would reside in the
same application then). But if you intent to deploy them in seperate
applications or even seperate servers, use 1.)
use CDI with #Inject, but this will still only discover the EJB if
either in the same application, or decorated as #Remote if not.
HTH,
Alex
You should not use #EJB if the target is not an EJB. I guess this is your case because you are trying to inject into a class in your WAR.
Instead use:
#Inject
private IOCRService ocr;
Basically, #Inject is better in most cases, because:
it is more typesafe,
it supports #Alternatives
it is aware of the scope of the injected object.
Another solution it's to add #Stateless(name=""), this worked form