How can I inject a custom factory using hk2? - jersey

I'm having a hard time to work with jersey test framework.
I have a root resource.
#Path("sample")
public class SampleResource {
#GET
#Path("path")
#Produces({MediaType.TEXT_PLAIN})
public String readPath() {
return String.valueOf(path);
}
#Inject
private java.nio.file.Path path;
}
I prepared a factory providing the path.
public class SamplePathFactory implements Factory<Path> {
#Override
public Path provide() {
try {
return Files.createTempDirectory(null);
} catch (final IOException ioe) {
throw new RuntimeException(ioe);
}
}
#Override
public void dispose(final Path instance) {
try {
Files.delete(instance);
} catch (final IOException ioe) {
throw new RuntimeException(ioe);
}
}
}
And a binder.
public class SamplePathBinder extends AbstractBinder {
#Override
protected void configure() {
bindFactory(SamplePathFactory.class).to(Path.class);
}
}
And, finally, my test class.
public class SampleResourceTest extends ContainerPerClassTest {
#Override
protected Application configure() {
final ResourceConfig resourceConfig
= new ResourceConfig(SampleResource.class);
resourceConfig.register(SamplePathBinder.class);
return resourceConfig;
}
}
When I tried to test, I got.
org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=Path,parent=SampleResource,qualifiers={},position=-1,optional=false,self=false,unqualified=null,1916953383)
What did I do wrong?

Your AbstractBinders should be registered as an instance, not as a class. So make the change
resourceConfig.register(new SamplePathBinder());
and it should work

Related

How to test a try...finally method only been called once in SpringBoot?

I am following this article to implement a database read/write separation feature by calling different methods. However, I got the error:
Missing method call for verify(mock) here: verify(spyDatabaseContextHolder, times(1)).set(DatabaseEnvironment.READONLY);
when doing the testing.
My test case is trying to verify DatabaseEnvironment.READONLY has been set once when using TransactionReadonlyAspect AOP annotation:
// TransactionReadonlyAspectTest.java
#RunWith(SpringRunner.class)
#ContextConfiguration(classes = {LoadServiceImpl.class, TransactionReadonlyAspect.class})
public class TransactionReadonlyAspectTest {
#Autowired
private TransactionReadonlyAspect transactionReadonlyAspect;
#MockBean
private LoadServiceImpl loadService;
#Test
public void testReadOnlyTransaction() throws Throwable {
ProceedingJoinPoint mockProceedingJoinPoint = mock(ProceedingJoinPoint.class);
Transactional mockTransactional = mock(Transactional.class);
DatabaseContextHolder spyDatabaseContextHolder = mock(DatabaseContextHolder.class);
when(mockTransactional.readOnly()).thenReturn(true);
when(loadService.findById(16)).thenReturn(null);
when(mockProceedingJoinPoint.proceed()).thenAnswer(invocation -> loadService.findById(16));
transactionReadonlyAspect.proceed(mockProceedingJoinPoint, mockTransactional);
verify(spyDatabaseContextHolder, times(1)).set(DatabaseEnvironment.READONLY); // got the error: Missing method call for verify(mock)
verify(loadService, times(1)).findById(16);
assertEquals(DatabaseContextHolder.getEnvironment(), DatabaseEnvironment.UPDATABLE);
}
}
//TransactionReadonlyAspect.java
#Aspect
#Component
#Order(0)
#Slf4j
public class TransactionReadonlyAspect {
#Around("#annotation(transactional)")
public Object proceed(ProceedingJoinPoint proceedingJoinPoint,
org.springframework.transaction.annotation.Transactional transactional) throws Throwable {
try {
if (transactional.readOnly()) {
log.info("Inside method " + proceedingJoinPoint.getSignature());
DatabaseContextHolder.set(DatabaseEnvironment.READONLY);
}
return proceedingJoinPoint.proceed();
} finally {
DatabaseContextHolder.reset();
}
}
}
// DatabaseContextHolder.java
public class DatabaseContextHolder {
private static final ThreadLocal<DatabaseEnvironment> CONTEXT = new ThreadLocal<>();
public static void set(DatabaseEnvironment databaseEnvironment) {
CONTEXT.set(databaseEnvironment);
}
public static DatabaseEnvironment getEnvironment() {
DatabaseEnvironment context = CONTEXT.get();
System.out.println("context: " + context);
return CONTEXT.get();
}
public static void reset() {
CONTEXT.set(DatabaseEnvironment.UPDATABLE);
}
}
//DatabaseEnvironment.java
public enum DatabaseEnvironment {
UPDATABLE,READONLY
}
// LoadServiceImpl.java
#Service
public class LoadServiceImpl implements LoadService {
#Override
#Transactional(readOnly = true)
public LoadEntity findById(Integer Id) {
return this.loadDAO.findById(Id);
}
...
}
I just want to test DatabaseContextHolder.set(DatabaseEnvironment.READONLY) has been used once then in the TransactionReadonlyAspect finally block it will be reset to DatabaseEnvironment.UPDATABLE which make sense.
However, how to test DatabaseContextHolder.set(DatabaseEnvironment.READONLY) gets called once? Why does this error occur? Is there a better way to test TransactionReadonlyAspect?

Class field in Netty ChannelInboundHandler could not autowired

I try to autowire some service class in channelInboundhandler class field.
but when handler use repository field it always null.
Here is my Netty Configuration
my.netty:
server:
bind: 9000
#SpringBootApplication
public class NettyApplication {
public static void main(String[] args) {
SpringApplication.run(NettyApplication.class, args);
}
#Bean
NettyServerConfig serverConfig(#Autowired ServerHandler serverHandler) {
return NettyServerConfig.builder()
.propertiesPrefix("my.netty.server")
.channelInitializer(pipelineOf(loggingChannelHandler(), serverHandler))
.build();
}
#Bean
ChannelHandler loggingChannelHandler() {
return new LoggingHandler(INFO);
}
}
And channelinboundhandler, Service(Repository)
#Slf4j
#Component
#Sharable
public class ServerHandler extends ChannelInboundHandlerAdapter {
#Autowired ServerRepository repository; // always null
#Override
public void channelRead(ChannelHandlerContext ctx, Object object) throws Exception {
log.info("ServerHandler.channelRead()");
String data = repository.findOne();
log.info("data={}", data);
ctx.writeAndFlush(object);
}
}
#Repository
public class ServerRepository {
public String findOne() {
sleep(1000); // data-access time
return "data";
}
private void sleep(int millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
Is There any Problem?

JavaFX custom controls created with a Builder and binding expressions

I’m using Spring together with JavaFx. To use spring bean as a custom control I need to use BuilderFactory and a Builder to get a bean from the context. Otherwice I don't have an application context
Parent.java
#Component
#Scope(BeanDefinition.SCOPE_PROTOTYPE)
public class ParentControl extends VBox {
#Autowired
ControlFXMLLoader controlFXMLLoader;
#Value("classpath:/parent.fxml")
private Resource fxml;
#PostConstruct
void load() throws IOException {
controlFXMLLoader.load(fxml.getURL(), this);
}
public ParentControl() {
//no application context
}
public LocalDate getDate() {
return LocalDate.now();
}
}
BeanBuilderFactory.java
#Component
public class BeanBuilderFactory implements BuilderFactory {
private Logger logger = LogManager.getLogger(BeanBuilderFactory.class);
#Autowired
private ConfigurableApplicationContext context;
public BeanBuilderFactory() {
}
private JavaFXBuilderFactory defaultBuilderFactory = new JavaFXBuilderFactory();
#Override
public Builder<?> getBuilder(Class<?> type) {
try {
String[] beanNames = context.getBeanNamesForType(type);
if (beanNames.length == 1) {
return new Builder<Object>() {
#Override
public Object build() {
return context.getBean(beanNames[0]);
}
};
} else {
return defaultBuilderFactory.getBuilder(type);
}
} catch (BeansException e) {
return defaultBuilderFactory.getBuilder(type);
}
}
}
And then I user this BuilderFactory to load fxml for a custom control
ControlFXMLLoader.java
#Component
public class ControlFXMLLoader {
private Logger logger = LogManager.getLogger(ControlFXMLLoader.class);
#Autowired
protected ConfigurableApplicationContext context;
#Autowired
protected BeanBuilderFactory beanBuilderFactory;
public Object load(URL fxmlUrl, Parent root, Object controller) throws IOException {
logger.debug("load");
javafx.fxml.FXMLLoader loader = new javafx.fxml.FXMLLoader(fxmlUrl);
loader.setControllerFactory(context::getBean);
loader.setBuilderFactory(beanBuilderFactory);
loader.setRoot(root);
loader.setController(controller);
return loader.load();
}
public Object load(URL fxmlUrl, Parent root) throws IOException {
return load(fxmlUrl, root, root);
}
}
Now I have a child custom control
ChildControl.java
#Component
#Scope(BeanDefinition.SCOPE_PROTOTYPE)
public class ChildControl extends VBox {
public ChildControl() {
}
#Autowired
ControlFXMLLoader controlFXMLLoader;
#Value("classpath:/child.fxml")
private Resource fxml;
#PostConstruct
void load() throws IOException {
controlFXMLLoader.load(fxml.getURL(), this);
}
ObjectProperty<LocalDate> date = new SimpleObjectProperty<LocalDate>();
public LocalDate getDate() {
return date.get();
}
public void setDate(LocalDate date) {
this.date.set(date);
}
public ObjectProperty<LocalDate> dateProperty() {
return date;
}
#FXML
protected void doSomething() {
System.out.println("The button was clicked! " + date.get().toString());
}
}
And want to assign the date to the child from parent fxml
parent.fxml
<fx:root type="com.example.javafx.ParentControl" xmlns:fx="http://javafx.com/fxml">
<ChildControl date="${controller.date}"/>
</fx:root>
child.fxml
<fx:root type="com.example.javafx.ChildControl" xmlns:fx="http://javafx.com/fxml">
<TextField fx:id="textField"/>
<Button text="Click Me" onAction="#doSomething"/>
</fx:root>
The problem is that FXMLLoader doesn’t not allow to use Binding Expression together with a Builder. I got "Cannot bind to builder property." exception.
Below is the part of the code from FXMLLoader.java and the very last if that causes the problem.
Is there some other solution?
FXMLLoader.java
public void processPropertyAttribute(Attribute attribute) throws IOException {
String value = attribute.value;
if (isBindingExpression(value)) {
// Resolve the expression
Expression expression;
if (attribute.sourceType != null) {
throw constructLoadException("Cannot bind to static property.");
}
if (!isTyped()) {
throw constructLoadException("Cannot bind to untyped object.");
}
// TODO We may want to identify binding properties in processAttribute()
// and apply them after build() has been called
if (this.value instanceof Builder) {
throw constructLoadException("Cannot bind to builder property.");
}

Bean not getting overridden in Spring boot

I am trying to write and test an application that used spring-cloud with azure functions following this tutorial.
https://github.com/markusgulden/aws-tutorials/tree/master/spring-cloud-function/spring-cloud-function-azure/src/main/java/de/margul/awstutorials/springcloudfunction/azure
I am tryign to write a testcase and override the bean.
Here is the application class having function and handler Bean function.
#SpringBootApplication
#ComponentScan(basePackages = { "com.package" })
public class DataFunctions extends AzureSpringBootRequestHandler<GenericMessage<Optional<String>>, Data> {
#FunctionName("addData")
public HttpResponseMessage addDataRun(
#HttpTrigger(name = "add", methods = {
HttpMethod.POST }, authLevel = AuthorizationLevel.FUNCTION) HttpRequestMessage<Optional<String>> request,
final ExecutionContext context) throws JsonParseException, JsonMappingException, IOException {
context.getLogger().info("Java HTTP trigger processed a POST request.");
try {
handleRequest(new GenericMessage<Optional<String>>(request.getBody()), context);
} catch (ServiceException ex) {
ErrorMessage em = new ErrorMessage();
return request.createResponseBuilder(handleException(ex, em)).body(em).build();
}
return request.createResponseBuilder(HttpStatus.CREATED).build();
}
#Autowired
MyService mService;
#Bean
public Consumer<GenericMessage<Optional<String>>> addData() {
ObjectMapper mapper = new ObjectMapper();
return req -> {
SomeModel fp = null;
try {
fp = mapper.readValue(req.getPayload().get(), SomeModel.class);
} catch (Exception e) {
throw new ServiceException(e);
}
mService.addData(fp);
};
}
}
I want to test by overriding the above bean.
Cosmosdb spring configuration
#Configuration
#EnableDocumentDbRepositories
public class CosmosDBConfig extends AbstractDocumentDbConfiguration {
#Value("${cosmosdb.collection.endpoint}")
private String uri;
#Value("${cosmosdb.collection.key}")
private String key;
#Value("${cosmosdb.collection.dbname}")
private String dbName;
#Value("${cosmosdb.connect.directly}")
private Boolean connectDirectly;
#Override
public DocumentDBConfig getConfig() {
ConnectionPolicy cp = ConnectionPolicy.GetDefault();
if (connectDirectly) {
cp.setConnectionMode(ConnectionMode.DirectHttps);
} else {
cp.setConnectionMode(ConnectionMode.Gateway);
}
return DocumentDBConfig.builder(uri, key, dbName).connectionPolicy(cp).build();
}
}
Here is the configuration
#TestConfiguration
#PropertySource(value = "classpath:application.properties", encoding = "UTF-8")
#Profile("test")
#Import({DataFunctions.class})
public class TestConfig {
#Bean(name="addData")
#Primary
public Consumer<GenericMessage<Optional<String>>> addData() {
return req -> {
System.out.println("data mock");
};
}
#Bean
#Primary
public DocumentDBConfig getConfig() {
return Mockito.mock(DocumentDBConfig.class);
}
}
Finally the test class
#RunWith(SpringRunner.class)
//#SpringBootTest //Enabling this gives initialization error.
#ActiveProfiles("test")
public class TempTest {
#InjectMocks
DataFunctions func;
#Mock
MyService mService;
#Before
public void setup() {
MockitoAnnotations.initMocks(this);
}
private Optional<String> createRequestString(final String res) throws IOException {
InputStream iStream = TempTest.class.getResourceAsStream(res);
String charset="UTF-8";
try (BufferedReader br = new BufferedReader(new InputStreamReader(iStream, charset))) {
return Optional.of(br.lines().collect(Collectors.joining(System.lineSeparator())));
}
}
#Test
public void testHttpPostTriggerJava() throws Exception {
#SuppressWarnings("unchecked")
final HttpRequestMessage<Optional<String>> req = mock(HttpRequestMessage.class);
final Optional<String> queryBody = createRequestString("/test-data.json");
doNothing().when(mService).addData(Mockito.any(SomeModel.class));
doReturn(queryBody).when(req).getBody();
doAnswer(new Answer<HttpResponseMessage.Builder>() {
#Override
public HttpResponseMessage.Builder answer(InvocationOnMock invocation) {
HttpStatus status = (HttpStatus) invocation.getArguments()[0];
return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
}
}).when(req).createResponseBuilder(any(HttpStatus.class));
final ExecutionContext context = mock(ExecutionContext.class);
doReturn(Logger.getGlobal()).when(context).getLogger();
doReturn("addData").when(context).getFunctionName();
// Invoke
final HttpResponseMessage ret = func.addDataRun(req, context);
// Verify
assertEquals(ret.getStatus(), HttpStatus.CREATED);
}
}
For this case instead of test configuration addData the actual bean is called from DataFunctions class. Also the database connection is also created when it should use the mocked bean from my test configuration. Can somebody please point out what is wrong in my test configuration?
I was able to resolve the first part of cosmos db config loading by marking it with
#Configuration
#EnableDocumentDbRepositories
#Profile("!test")
public class CosmosDBConfig extends AbstractDocumentDbConfiguration {
...
}
Also had to mark the repository bean as optional in the service.
public class MyService {
#Autowired(required = false)
private MyRepository myRepo;
}
Didn't use any spring boot configuration other than this.
#ActiveProfiles("test")
public class FunctionTest {
...
}
For the second part of providing mock version of Mock handlers, I simply made the test config file as spring application as below.
#SpringBootApplication
#ComponentScan(basePackages = { "com.boeing.da.helix.utm.traffic" })
#Profile("test")
public class TestConfiguration {
public static void main(final String[] args) {
SpringApplication.run(TestConfiguration.class, args);
}
#Bean(name="addData")
#Primary
public Consumer<GenericMessage<Optional<String>>> addData() {
return req -> {
System.out.println("data mock");
};
}
}
and made use of this constructor from azure functions library in spring cloud in my constructor
public class AppFunctions
extends AzureSpringBootRequestHandler<GenericMessage<Optional<String>>, List<Data>> {
public AppFunctions(Class<?> configurationClass) {
super(configurationClass);
}
}
public AzureSpringBootRequestHandler(Class<?> configurationClass) {
super(configurationClass);
}
Hope it helps someone.

Expose Togglz Admin console in Spring Boot on management-port

By default Togglz admin console runs on application port (configured by server.port property). I want to expose it on management.port. My question: is it possible?
If you use Togglz >= 2.4.0 then this feature is available out of the box.
For older releases solution is below:
I managed to expose a raw servlet on management.port by wrapping it with MvcEndpoint.
The easiest way to do it to use Spring Cloud module which does all the job for you (for example in the HystrixStreamEndpoint):
public class HystrixStreamEndpoint extends ServletWrappingEndpoint {
public HystrixStreamEndpoint() {
super(HystrixMetricsStreamServlet.class, "hystrixStream", "/hystrix.stream",
true, true);
}
}
In the case of TogglzConsoleServlet there is unfortunately one more hack to do with path's due to the way it extracts prefix from request URI, so the whole solution looks a little bit ugly:
#Component
class TogglzConsoleEndpoint implements MvcEndpoint {
private static final String ADMIN_CONSOLE_URL = "/togglz-console";
private final TogglzConsoleServlet togglzConsoleServlet;
#Autowired
TogglzConsoleEndpoint(final ServletContext servletContext) throws ServletException {
this.togglzConsoleServlet = new TogglzConsoleServlet();
togglzConsoleServlet.init(new DelegatingServletConfig(servletContext));
}
#Override
public String getPath() {
return ADMIN_CONSOLE_URL;
}
#Override
public boolean isSensitive() {
return true;
}
#Override
public Class<? extends Endpoint> getEndpointType() {
return null;
}
#RequestMapping("**")
public ModelAndView handle(HttpServletRequest request, HttpServletResponse response) throws Exception {
HttpServletRequestWrapper requestWrapper = new HttpServletRequestWrapper(request) {
#Override
public String getServletPath() {
return ADMIN_CONSOLE_URL;
}
};
togglzConsoleServlet.service(requestWrapper, response);
return null;
}
private class DelegatingServletConfig implements ServletConfig {
private final ServletContext servletContext;
DelegatingServletConfig(final ServletContext servletContext) {
this.servletContext = servletContext;
}
#Override
public String getServletName() {
return TogglzConsoleEndpoint.this.togglzConsoleServlet.getServletName();
}
#Override
public ServletContext getServletContext() {
return servletContext;
}
#Override
public String getInitParameter(final String name) {
return servletContext.getInitParameter(name);
}
#Override
public Enumeration<String> getInitParameterNames() {
return servletContext.getInitParameterNames();
}
}
}

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