If so how should I initialize MailSender?
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
public class EmailErrorReporting {
#SuppressWarnings("null")
public void sendEmail(String email, String text) {
SimpleMailMessage simpleMessage = new SimpleMailMessage();
simpleMessage.setFrom("alee#email.com");
simpleMessage.setTo(email);
simpleMessage.setText(text);
MailSender sender = null;
sender.send(simpleMessage);
}
}
The email I'm trying to send is just simple text.
If you meant "without spring beans" when you said "without using javabeans", then you have to create your own instance of an implementation of JavaMailSender, like JavaMailSenderImpl, a public class, set all the required properties like host, port, protocol and then call send() method with your message.
You could probably take a look at this page and instantiate your JavaMailSenderImpl object based on the attributes defined in the bean definition.
Related
I am trying to inject some property values into variables by means of Spring #Value annotation but I get null values. I tried different configurations and triks but it doesn't work. Think is that before today everythink was working properly. I do not know what I changed in order to get things broken.
Here is my java class:
#Component
#ConditionalOnProperty(prefix = "studioghibli", name = "get")
public class StudioGhibliRestService {
#Value("${studioghibli.basepath}")
private static String BASE_PATH;
#Value("${studioghibli.path}")
private static String PATH;
#Value("${studioghibli.protocol:http}")
private static String PROTOCOL;
#Value("${studioghibli.host}")
private static String HOST;
private static String BASE_URI = PROTOCOL.concat("://").concat(HOST).concat(BASE_PATH).concat(PATH);
#Autowired
StudioGhibliRestConnector connector;
public List<StudioGhibliFilmDTO> findAllFilms() throws SipadContenziosoInternalException {
var response = connector.doGet(BASE_URI, null, null);
if (!response.getStatusCode().is2xxSuccessful() || !response.hasBody()) {
throw new SipadContenziosoInternalException(Errore.INTERNAL_REST_ERROR, "FindAll(), microservizio ".concat(BASE_URI), null);
}
return (List<StudioGhibliFilmDTO>) response.getBody();
}
}
As you can see, the class is annotated with #Component, that because I will need to use it as #Service layer in order to make a rest call in my business logic.
The class is also annotaded with conditional on property...
Here is a screenshot of the debug window at startup:
Since the PROTOCOL value is null, i get a null pointer exception immediately at start up.
Here is part of the application-dev.properties file:
studioghibli.get
studioghibli.protocol=https
studioghibli.host=ghibliapi.herokuapp.com
studioghibli.basepath=/
studioghibli.path=/films
First of all, #Value annotation does not work with static fields.
Secondly, fields with #Value annotation is processed when the instance of the class (a bean) is created by Spring, but static fields exist for a class (for any instance), so when the compiler is trying to define your static BASE_URI field other fields are not defined yet, so you get the NPE on startup.
So you might need a refactoring, try to inject values with the constructor like this:
#Component
#ConditionalOnProperty(prefix = "studioghibli", name = "get")
public class StudioGhibliRestService {
private final StudioGhibliRestConnector connector;
private final String baseUri;
public StudioGhibliRestService(StudioGhibliRestConnector connector,
#Value("${studioghibli.basepath}") String basePath,
#Value("${studioghibli.path}") String path,
#Value("${studioghibli.protocol:http}") String protocol,
#Value("${studioghibli.host}") String host) {
this.connector = connector;
this.baseUri = protocol.concat("://").concat(host).concat(basePath).concat(path);
}
// other code
}
Thanks, It works for me, I have to add some codes to my project. Then I check the spring core document in "#Value" section. Besides
When configuring a PropertySourcesPlaceholderConfigurer using
JavaConfig, the #Bean method must be static.
#Bean
public static PropertySourcesPlaceholderConfigurer propertyPlaceholderConfigurer(){
return new PropertySourcesPlaceholderConfigurer();
}
Quarkus using Rest Client, explains how to use the MicroProfile REST Client. For Base URL application.properties can be used.
org.acme.restclient.CountriesService/mp-rest/url=https://restcountries.eu/rest #
With above approach, cant have dynamic base URL.
Able to achieve it by using RestClientBuilder as explained in MicroProfile Rest Client. Downside of this approach is not having auto-negotiation capability.
SimpleGetApi simpleGetApi = RestClientBuilder.newBuilder().baseUri(getApplicationUri()).build(SimpleGetApi.class);
Is there other or better way to achieve this? Thanks.
While it is true, that the MP Rest CLient does not allow you to set the BaseUri dynamically when you use declarative/Injected clients, there are some (albeit hacky) ways how to achieve that.
One is to use standard ClientRequestFilter which can modify the URL:
#Provider
#Slf4j
public class Filter implements ClientRequestFilter {
#Inject RequestScopeHelper helper;
#Override
public void filter(ClientRequestContext requestContext) throws IOException {
if (helper.getUrl() != null) {
URI newUri = URI.create(requestContext.getUri().toString().replace("https://originalhost.com", helper.getUrl()));
requestContext.setUri(newUri);
}
}
}
Where RequestScopeHelper is some help class (e.g. request scoped bean) through which you can pass the dynamic url, for example:
#Inject
RequestScopeHelper helper;
#Inject
#RestClient
TestIface myApiClient;
public void callSomeAPIWithDynamicBaseUri(String dynamic) {
helper.setUrl(dynamic);
myApiClient.someMethod();
}
Second is to use MP rest client SPI, namely the RestClientListener which allows you to modify the rest clients after they are built.
For this to work, you have to set the scope of your rest client to RequestScoped so that new instance is created for each request(if you use singleton for example, then the client is only created once and your listener will only be called once). This you can do via quarkus properties:
quarkus.rest-client."com.example.MyRestIface".scope=javax.enterprise.context.RequestScoped
public class MyListener implements RestClientListener {
#Override
public void onNewClient(Class<?> serviceInterface, RestClientBuilder builder) {
String newUri = //obtain dynamic URI from somewhere e.g. again request scope bean lookup, or maybe dynamic config source (create new in-memory ConfigSource, before you invoke your rest client set the corresponding rest client url property to your dynamic value, then inside this listener use ConfigProvider.getConfig().getProperty...)
builder.baseUri(URI.create(newUri));
}
}
Don't forget to register this listener as service provider(META-INF/services/org.eclipse.microprofile.rest.client.spi.RestClientListener)
Another option is to use custom CDI producer that would produce the Rest client instances for you; then you could control all client config yourself. You can use the RestClientBase from Quarkus rest client which is exactly what Quarkus uses under the hood during deployment phase to construct client instances. You will however have to duplicate all the logic related to registration of handlers, interceptors etc.
Do keep in mind, that any of these solutions will make the debugging and problem analysis more challenging - because you will now have multiple places, where the URI is controlled(MP config/quarkus properties, env vars, your custom impl...), so you need to be careful with your approach and maybe add some explicit log messages when you override the URI manually.
MicroProfile REST Client in Quarkus does allow you to use dynamic base URL with that simple "hack" :
Just put an empty String in #Path annotations for you API interface like that :
import javax.ws.rs.GET;
import javax.ws.rs.Path;
#Path("")
public interface SimpleGetApi {
#Path("")
#GET
String callWithDynmamicUrl(); //it can be String or any return type you want
}
After that you are ready to call your dynamic base URL :
import org.eclipse.microprofile.rest.client.RestClientBuilder;
import java.net.URI;
public class Example {
public static void main(String[] args) {
URI anyDynamicUrl = URI.create("http://restcountries.eu/rest/some/dynamic/path");
SimpleGetApi simpleGetApi = RestClientBuilder.newBuilder().baseUri(anyDynamicUrl)
.build(SimpleGetApi.class);
simpleGetApi.callWithDynmamicUrl();
}
}
I have some fields in a model that I only want to be returned when the logged in user has the role ROLE_ADMIN. I can use #JsonIgnore but that hides it for everyone. How can I make it hide dynamically?
You should use Jackson Json Views technology to acheive it - it allows to choose a different set of fields to be serialized programatically. It is also supported by Spring
Consider you have a class Model with two properties: commonField which should be available for everyone and secretField which should be available only for certain users. You should create an hierarchy of views (any classes would work) and specify which field is available in which view using #JsonView annotation
package com.stackoverflow.jsonview;
import com.fasterxml.jackson.annotation.JsonView;
public class Model {
public static class Public {}
public static class Secret extends Public {}
#JsonView(Public.class)
private String commonField;
#JsonView(Secret.class)
private String secretField;
public Model() {
}
public Model(String commonField, String secretField) {
this.commonField = commonField;
this.secretField = secretField;
}
public String getCommonField() {
return commonField;
}
public void setCommonField(String commonField) {
this.commonField = commonField;
}
public String getSecretField() {
return secretField;
}
public void setSecretField(String secretField) {
this.secretField = secretField;
}
}
Now you can specify the view you want to use in concrete ObjectMapper
package com.stackoverflow.jsonview;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Test;
import static org.junit.Assert.*;
/**
*/
public class ModelTest {
#Test
public void testSecretField() throws JsonProcessingException {
Model model = new Model("commonField","secretField");
assertEquals("{\"commonField\":\"commonField\",\"secretField\":\"secretField\"}", new ObjectMapper().writerWithView(Model.Secret.class).writeValueAsString(model));
assertEquals("{\"commonField\":\"commonField\"}", new ObjectMapper().writerWithView(Model.Public.class).writeValueAsString(model));
}
}
I am not sure if you can use declaratie approach to make spring choose the right view based on user role out of the box, so probably you will have to write some code like this:
#RequestMapping("/data")
public String getData(HttpServletRequest request) {
Model model = service.getModel();
ObjectMapper objectMapper = new ObjectMapper();
objectMapper = request.isUserInRole("ROLE_ADMIN") ? objectMapper.writerWithView(Model.Secret.class) : objectMapper.writerWithView(Model.Public.class);
return objectMapper.writeValueAsString(model);
}
I solved this after literally a full month of trying various things. I'm working with Spring 4.3.1 and boot, with data being returned in Hal using a pagedrepository.
extend RepositoryRestMvcConfiguration as MyRepositoryRestMvcConfiguration and add #Configuration to the class, make sure your starter class has #EnableWebMvc
add this to MyRepositoryRestMvcConfiguration- extend TypeConstrainedMappingJackson2HttpMessageConverter as MyResourceSupportHttpMessageConverter
add this to MyRepositoryRestMvcConfiguration
#Override
#Bean
public TypeConstrainedMappingJackson2HttpMessageConverter halJacksonHttpMessageConverter() {
ArrayList<MediaType> mediaTypes = new ArrayList<MediaType>();
mediaTypes.add(MediaTypes.HAL_JSON);
if (config().useHalAsDefaultJsonMediaType()) {
mediaTypes.add(MediaType.APPLICATION_JSON);
}
int order = config().useHalAsDefaultJsonMediaType() ? Ordered.LOWEST_PRECEDENCE - 10
: Ordered.LOWEST_PRECEDENCE - 1;
TypeConstrainedMappingJackson2HttpMessageConverter converter = new MyResourceSupportHttpMessageConverter(
order);
converter.setObjectMapper(halObjectMapper());
converter.setSupportedMediaTypes(mediaTypes);
converter.getObjectMapper().addMixIn(Object.class, MyFilteringMixin.class);
final FilterProvider myRestrictionFilterProvider = new SimpleFilterProvider()
.addFilter("MyFilteringMixin", new MyPropertyFilter()).setFailOnUnknownId(false);
converter.getObjectMapper().setFilterProvider(myRestrictionFilterProvider);
return converter;
}
Create an empty Mixin
package filters;
import com.fasterxml.jackson.annotation.JsonFilter;
#JsonFilter("MyFilteringMixin")
public class MyFilteringMixin {}
Create an empty Mixin
create class MyPropertyFilter extending SimpleBeanPropertyFilter and override adapt this method
serializeAsField(Object, JsonGenerator, SerializerProvider, PropertyWriter)you need to call either super.serializeAsField(pPojo, pJgen, pProvider, pWriter) or pWriter.serializeAsOmittedField(pPojo, pJgen, pProvider) depending on whether you wish to include or discard this particular field.
I added an annotation to the particular fields I wanted to alter and interrogated that annotation when deciding which of these two to call. I injected the security role and stored permitted roles in the annotation.
This alters what Hal shares out to the caller, not what Hal is holding in its repository. Thus you can morph it depending on who the caller is.
I know that the question is very big but I just want to clear the situation i am into.
I am working on an application that consumes the JMS messages from the message broker.
We are using camel route on the consumer side. All the object required in route builder are injected through constructor injection using spring .
I want to mock the behavior of the actual processing, Once the consumer receives the message from the queue. All the classes gets loaded via the spring configuration.
Below are the three classes:
CustomRouteBuilder.java
public CustomRouteBuilder extends RouteBuilder{
private CustomRouteAdapter customAdapter;
public CustomRouteBuilder (CustomRouteAdapter customAdapter){
this.customAdapter = customAdapter
}
public void configure(RouteDefinition route){
route.bean(customAdapter);
}
}
CustomRouteAdapter.java
public class CustomRouteAdapter {
private Orchestrator orchestrator;
public CustomRouteAdapter (Orchestrator orchestrator){
this.orchestrator = orchestrator;
}
#Handler
public void process(String message){
orchestrator.generate(message) ;
}
}
Orchestrator.java
public class Orchestrator{
private Service service;
public Orchestrator(Service service){
this.service = service;
}
public void generateData(String message){
service.process(message);
}
}
As per our requirement we have to load this configuration file and then write the functional test using spock.
Below is my
CustomRouteBuilderTest.groovy file.
import org.springframework.test.util.ReflectionTestUtils
import spock.lang.Specification
#ContextConfiguration(classes=[CustomRouteBuilderTest.Config.class])
class CustomRouteBuilderTest extends Specification{
private static final String message = "Hello";
Orchestrator orchestrator;
#Autowired
CustomRouteAdapter customRouteAdapter;
def setup(){
orchestrator = Mock(Orchestrator)
ReflectionTestUtils.setField(customRouteAdapter,"orchestrator",orchestrator)
orchestrator.generate(message )
}
private String getMessageAsJson() {
//return json string;
}
private String getMessage() {
// return message;
}
private Map<String, Object> doMakeHeaders() {
//Create message headers
}
private void doSendMessage(){
Thread.sleep(5000)
Map<String,Object> messageHeader = doMakeHeaders()
byte [] message = getMessageAsJson().getBytes()
CamelContext context = new DefaultCamelContext()
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(jmsBrokerUrl)
context.addComponent("activeMQComponent",JmsComponent.jmsComponent(connectionFactory))
ProducerTemplate template = context.createProducerTemplate()
context.start();
template.sendBodyAndHeaders("queueName", message, messageHeader)
}
def "test message consumption"(){
given:
doSendMessage()
}
#Configuration
#Import([FunctionalTestCommonConfig.class,CustomRouteBuilderConfig.class])
#PropertySource(value="classpath:test.properties")
static class Config{
}
}
The problem that here is even though I inject the mocked object to the adapter using ReflectionTestUtils , I am not able to define its behavior correctly.
And when the message is received the orchestrator tries to process it.
My Requirement is that:
Adapter should be called from the camel route automatically which happens but
when the orechestrator.generate is called from the adapter then nothing should happen it should simply return.
But here nothing like that is going on.
Each time I send a message the consumer(RouteBuilder) receives it and calls the handler function which then calls the
orchestrator.generate(message)
function and the orchestrator starts processing and throws an exception from service level.
Any one can please help me on this.
I suppose your beans have been proxified by Spring, and this proxy use cglib (because you see CustomRouteBuilder$$EnhancerBySpringCGLIB$$ad2783ae).
If it's really the case, you didn't #Autowired in your test the real instance of your CustomRouteAdapter but a cglib proxy: Spring creates a new class, extending the realclass, and overriding all the methods of this class. The new method delegate to the real instance.
When you change the orchestrator field, you are in reality changing the orchestrator field of the proxy, which is not used by the real instance.
There are severals ways to achieve what you want to do:
add a setOrchestrator method in CustomRouteAdapter
create the mock in your spring configuration and let spring inject this mock instead of a real instance of Orchestrator
Inject the orchestrator in the real instance (ugly - I didn't recommend you that, it didn't help in the testability of your code!)
customRouteAdapter.targetSource.target.orchestrator = _themock_
I am trying to create a very basic sling service in AEM:
package com.mypackage;
/**
* A simple service interface
*/
public interface TestService {
/**
* #return the name of the underlying JCR repository implementation
*/
public String getPropertyName();
}
The implementation class:
package com.mymypackage.impl;
import javax.jcr.Repository;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.jcr.api.SlingRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.mypackage.TestService;
#Component(label = "Title", description = "Description.", immediate = true, metatype = true, policy = ConfigurationPolicy.REQUIRE)
#Service(value = {TestService.class})
#Properties({
#Property(name = "propertyPath", label = "Property Label", description = "Property Desc.")
})
public class TestServiceImpl implements TestService {
private static final Logger log = LoggerFactory.getLogger(TestServiceImpl.class);
String propertyPath = null;
#Activate
public void activate(ComponentContext ctx) {
Dictionary properties = ctx.getProperties();
String propertyPath =(String)properties.get("propertyPath");
log.info("====================getPropertyName activate========================"+propertyPath);
this.propertyPath = propertyPath;
}
#Override
public String getPropertyName() {
// TODO Auto-generated method stub
log.info("====================getPropertyName========================"+propertyPath);
return propertyPath;
}
}
and I have created a node of type sling:OsgiConfig inside the config folder. The name of this node is com.mypackage.impl.TestServiceImpl.xml and are the content of it:
<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
jcr:primaryType="sling:OsgiConfig"
propertyPath="http://www.myuhc.com"/>
and this is how I am trying to use it inside a Java class:
public static String getTestService() {
TestService testService = new TestServiceImpl();
String prop = testService.getPropertyName();
return prop;
}
This method is being called from a JSP using customtaglib (method being mapped through a .tld file)
When I use this approach the activate method inside the HelloServiceImpl class is not called and hence the property is not set. But when I use the service inside a component JSP like this:
<%#page import="org.osgi.service.cm.ConfigurationAdmin"%>
<%#page import="org.osgi.service.cm.Configuration"%>
<%
Configuration conf = sling.getService(org.osgi.service.cm.ConfigurationAdmin.class).getConfiguration("Name of the config");
String myProp = (String) conf.getProperties().get("property key");
%>
everything works fine. There is something really wrong I must be doing while trying to call the service from a Java class. How can I use that approach. I don't want to use scriptlet inside JSP. Also, any best practices would be highly appreciated.
Thanks in advance
OSGi Services work within a life cycle which manages the creation and deletion of the Service instances.
As part of the container management of these instances, when the container creates the instance it calls the activation method with the appropriate values. So that the property can be assigned.
What you are doing in your first code snippet:
TestService testService = new TestServiceImpl();
String prop = testService.getPropertyName();
Is not using the containers version of your component. Your using the direct implementation and bypassing the container management.
To use the instance that is managed by the container. You need to request it from the container.
Which is exactly what your second snippet shows
sling.getService(org.osgi.service.cm.ConfigurationAdmin.class)
Is requesting the best matching service from the container.
To access a service from the container. You either need to be a Service yourself. Which you can do by the #Reference annotation.
You mentioned however being in a taglib which makes things a bit more complicated. You need to obtain a reference to the SlingScriptHelper which can be obtained from the pageContext like this;
ServletRequest request = pageContext.getRequest();
final SlingBindings bindings = (SlingBindings) request
.getAttribute(SlingBindings.class.getName());
final SlingScriptHelper scriptHelper = bindings.getSling();
TestService service= scriptHelper
.getService(com.mymypackage.impl.TestService.class);
The problem is, that sometimes when you try to re-install a bundle, some old compiled classess are not removed and replaced with a new one. Try to remove the /var/classes and/or /var/clientlibs nodes and re-install your projects.
This may also be useful, if you are unable to use #Reference annotation for injecting your service
// get the TestServiceImpl.java service component
TestServiceImpl testService = getSlingScriptHelper().getService(TestServiceImpl.class);
//com.adobe.cq.sightly.WCMUsePojo.getSlingScriptHelper()