Earlier i used to write below code with spring boot 1.5.12 :-
import org.springframework.cloud.sleuth.Span;
import org.springframework.cloud.sleuth.Tracer;
#Autowired
Tracer tracer;
Span span = this.tracer.getCurrentSpan();
System.out.println(Span.idToHex(span.getSpanId()));
System.out.println(Span.idToHex(span.getTraceId()));
But this code is not working with spring boot 2.2.6 .How should i print now ?
import brave.Tracer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
#Slf4j
#Component
public class BravePrinter {
#Autowired
private Tracer tracer;
public void print() {
var span = this.tracer.currentSpan();
System.out.println(span.context().traceIdString());
System.out.println(span.context().spanIdString());
}
}
Related
I wrote a simple SpringBootTest where I tried to read test data from a JSON file and insert it into the database in the #BeforeEach annotated method. When querying the data in the test method, I indeed find the data in the repository. When the REST interface is called via RestAssured and the corresponding method is executed, no data is found via the respository. However, when setting rollback=false in the test, I can find the data in the H2 database. Test code as follows:
package mypackage;
import static io.restassured.RestAssured.get;
import static org.hamcrest.Matchers.hasItems;
import static org.mockito.ArgumentMatchers.eq;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.Objects;
import mypackage.MessageEntity;
import mypackage.MessageRepo;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.restassured.RestAssured;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;
import org.springframework.test.annotation.Rollback;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;
#EnableAutoConfiguration
#SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, properties = { "spring.main.lazy-initialization=true",
"spring.datasource.url=jdbc:h2:file:C:/mydatabase", "spring.jpa.properties.hibernate.default_schema=",
"spring.jpa.hibernate.ddl-auto=create", "spring.datasource.driverClassName=org.h2.Driver",
"spring.jpa.properties.hibernate.show_sql=true", "spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect",
"spring.datasource.username=sa" })
#ActiveProfiles("test")
class MyWebServiceTest{
#Autowired
MessageRepo messageRepo;
#LocalServerPort
int port;
#Autowired
private PlatformTransactionManager platformTransactionManager;
#BeforeEach
void beforeAll() throws IOException, URISyntaxException {
RestAssured.baseURI = "http://localhost/webservice";
RestAssured.port = port;
TransactionTemplate transactionTemplate = new TransactionTemplate(this.platformTransactionManager);
final List<MessageEntity> messages = setupMessages();
transactionTemplate.execute((TransactionCallback<Object>) status -> messageRepo.saveAllAndFlush(messages));
}
#Test
#Transactional
#Rollback(false)
void test() {
System.out.println(messageRepo.findAll()); // successfully retrieves data
get("/messages").then().assertThat().body("$", hasItems(67)).and().statusCode(eq(200)); // in the corresponding method of the WebService, no data is found
}
private List<MessageEntity> setupMessages() throws IOException, URISyntaxException {
final String messagesString = Files.readString(
Paths.get(Objects.requireNonNull(MyWebServiceTest.class.getResource("/messages.json")).toURI()));
return new ObjectMapper().readValue(messagesString, new TypeReference<List<MessageEntity>>() {
});
}
}
I tried to persist the data in the #BeforeEach in different ways, tried flushing etc, but the data is not available when doing messageRepo.findAll() in the method called in the REST-Interface. I would expect the inserted data to be also available there. However, the data is available in the test method, but not at the REST endpoint.
Do you have any idea why this is happening and what I can try to get the desired result with my test data? Thanks!
I've created a spring application using spring-security with java based configuration. I've also included a jar file (created by me) in my project.
The problem I am facing is:- i have to write #ComponentScan(basePackages = {"com.mypackage"}) in both the classes (SpringConfig.java and SecurityConfig.java) which leads to initialization of beans twice.
Removing either of #componentscan leads to error:- Error creating bean with name 'securityConfig'.
Below are my java classes.
SpringConfig.java
package com.mypackage.config;
import javax.annotation.PostConstruct;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
#EnableWebMvc
#Configuration
#ComponentScan(basePackages = {"com.mypackage"})
public class SpringConfig extends WebMvcConfigurerAdapter {
private static final Logger logger = LoggerFactory.getLogger(SpringConfig.class);
#PostConstruct
public void init(){
logger.debug("Spring Config initialized");
}
}
SecurityConfig.java
package com.mypackage.config;
import javax.annotation.PostConstruct;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
#Configuration
#EnableWebSecurity
#ComponentScan(basePackages = {"com.mypackage"})
public class SecurityConfig extends WebSecurityConfigurerAdapter{
private static final Logger logger = LoggerFactory.getLogger(SecurityConfig.class);
//This Configuration class is in my jar file.
// with package starting with same name com.mypackage
#Autowired
com.mypackage.frameworks.config.Configuration config;
#PostConstruct
public void init(){
logger.debug("Security config initiaziled");
}
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) {
try {
auth.inMemoryAuthentication()
.withUser("admin").password("admin").roles("USER");
} catch (Exception e) {
e.printStackTrace();
}
}
}
MyController.java
package com.mypackage.controller;
import javax.annotation.PostConstruct;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
#Controller
public class MyController {
private static final Logger logger = LoggerFactory.getLogger(MyController.class);
#PostConstruct
public void init(){
logger.debug("-------Controller created-------");
}
}
You have configured bean definitions into multiple #Configuration classes. My suggestion is - Aggregating #Configuration classes with #Import into single place.
Now you can able to apply #ComponentScan(basePackages = {"com.mypackage"}) in one place and context also loads bean only one time.
The #Import annotation provides just this kind of support, and it is the direct equivalent of the element found in Spring beans XML files.
Please refer this link - https://docs.spring.io/spring-javaconfig/docs/1.0.0.M4/reference/html/ch04s03.html
Beans will be configured and created twice because both application context scans the same package "com.mypackage". One solution is to separate SpringConfig beans package from SecurityConfig beans package. be as more specific as you can in #ComponentScan package value
I am trying to write integration test with jersey, Spring boot 1.4 and Spring data jpa.I am able to start embedded server but getting error from jersey side , any help will be appreciated.
Integration test
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.test.context.junit4.SpringRunner;
#RunWith(SpringRunner.class)
#SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT, classes=Application.class)
public class ContactServiceIT {
#Autowired
private TestRestTemplate restTemplate;
#Autowired
private ContactDao contactDao;
#Test
public void mergeContactsTest() {
String body = this.restTemplate.getForObject("/contacts/merge", String.class);
assertThat(body).isEqualTo("contacts merged");
}
}
Contact Resource
import java.io.IOException;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import org.springframework.beans.factory.annotation.Autowired;
#Path("/contacts")
public class ContactResource {
#Autowired
private ContactService contactService;
#GET
#Path("merge")
public Response mergeContacts() throws IOException {
contactService.mergeContacts();
return Response.status(Response.Status.CREATED)
.entity("contacts merged").build();
}
}
Stack trace:
java.lang.NoSuchMethodError: org.glassfish.jersey.CommonProperties.getValue(Ljava/util/Map;Ljavax/ws/rs/RuntimeType;Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
at org.glassfish.jersey.jackson.JacksonFeature.configure(JacksonFeature.java:73) ~[jersey-media-json-jackson-2.23.1.jar:na]
at org.glassfish.jersey.model.internal.CommonConfig.configureFeatures(CommonConfig.java:680) ~[jersey-common-2.7.jar:na]
at org.glassfish.jersey.model.internal.CommonConfig.configureMetaProviders(CommonConfig.java:610) ~[jersey-common-2.7.jar:na]
at org.glassfish.jersey.server.ResourceConfig.configureMetaProviders(ResourceConfig.java:800) ~[jersey-server-2.7.jar:na]
Please let me know if I am missing something.
Thanks.
Having some trouble injecting a dependency in one of my JUnit test classes.
I believe the TestApplication is not package scanning or is not being loaded.
Code below:
package com.mitto.repositories;
import static org.junit.Assert.*;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
import org.springframework.test.context.transaction.TransactionalTestExecutionListener;
import com.github.springtestdbunit.DbUnitTestExecutionListener;
import com.github.springtestdbunit.annotation.DatabaseSetup;
import com.mitto.MittoApplicationTests;
import com.mitto.domain.User;
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration( classes= { MittoApplicationTests.class } )
#TestExecutionListeners({DependencyInjectionTestExecutionListener.class,
TransactionalTestExecutionListener.class,
DbUnitTestExecutionListener.class})
#DatabaseSetup("UserRepositoryTest.xml")
public class UserRepositoryTest {
#Autowired
UserRepository repository;
private static final long FACEBOOK_ID = 1234567;
#Test
public void getUserById() {
User user = repository.findOne(1L);
assertNotNull(user);
assertEquals( user.getFacebookId(), FACEBOOK_ID );
}
}
MittoApplicationTests.java
package com.mitto;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
#RunWith(SpringRunner.class)
#SpringBootTest
public class MittoApplicationTests {
#Test
public void contextLoads() {
}
}
UserRepository.java
package com.mitto.repositories;
import org.springframework.data.repository.PagingAndSortingRepository;
import org.springframework.stereotype.Repository;
import com.mitto.domain.User;
#Repository
public interface UserRepository extends PagingAndSortingRepository<User, Long>{
User findByFacebookId( long facebookId );
User findByAuthToken( String token );
}
I can't see anything wrong with this.
Sometimes, a working example is better than fixes.
Here is a working example:
First, in your configuration class
#SpringBootApplication
#ComponentScan(value = "com.mitto")
#EnableJpaRepositories(value = "com.mitto")
#EntityScan(basePackages = {"com.mitto.domain"}, basePackageClasses = {Jsr310JpaConverters.class})
public class MittoApplicationTests {
}
Second, in your test class
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest(classes = MittoApplicationTests.class) // replace the #ContextConfiguration with #SpringBootTest
// rest of of your annotations ...
public class UserRepositoryTest {
#Autowired
UserRepository repository;
// your test cases
}
A Spring Boot application is just a Spring ApplicationContext, so nothing very special has to be done to test it beyond what you would normally do with a vanilla Spring context. One thing to watch out for though is that the external properties, logging and other features of Spring Boot are only installed in the context by default if you use SpringApplication to create it.
Spring Boot provides a #SpringBootTest annotation which can be used as an alternative to the standard spring-test #ContextConfiguration annotation when you need Spring Boot features. The annotation works by creating the ApplicationContext used in your tests via SpringApplication.
Please read the documentation for more details:
SpringBootTest annotation
boot-features-testing
I'm trying to export all of the metrics which are visible at the endpoint /metrics to a StatsdMetricWriter.
I've got the following configuration class so far:
package com.tonyghita.metricsdriven.service.config;
import com.codahale.metrics.MetricRegistry;
import com.ryantenney.metrics.spring.config.annotation.EnableMetrics;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.actuate.autoconfigure.ExportMetricReader;
import org.springframework.boot.actuate.autoconfigure.ExportMetricWriter;
import org.springframework.boot.actuate.metrics.reader.MetricReader;
import org.springframework.boot.actuate.metrics.reader.MetricRegistryMetricReader;
import org.springframework.boot.actuate.metrics.statsd.StatsdMetricWriter;
import org.springframework.boot.actuate.metrics.writer.MetricWriter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
#EnableMetrics(proxyTargetClass = true)
public class MetricsConfig {
private static final Logger LOGGER = LoggerFactory.getLogger(MetricsConfig.class);
#Value("${statsd.host:localhost}")
private String host = "localhost";
#Value("${statsd.port:8125}")
private int port;
#Autowired
private MetricRegistry metricRegistry;
#Bean
#ExportMetricReader
public MetricReader metricReader() {
return new MetricRegistryMetricReader(metricRegistry);
}
#Bean
#ExportMetricWriter
public MetricWriter metricWriter() {
LOGGER.info("Configuring StatsdMetricWriter to export to {}:{}", host, port);
return new StatsdMetricWriter(host, port);
}
}
Which writes all of the metrics which I've added to Statsd, but I'd like to also send the system/JVM metrics that are visible on the /metrics endpoint.
What am I missing?
I had the same problem and found a solution here: https://github.com/tzolov/export-metrics-example
Just add a MetricsEndpointMetricReader to your config and everything available at th e/metrics endpoint will be published to the StatsdMetricWriter.
Here is a complete example config for spring boot 1.3.x and dropwizard metrics-jvm 3.1.x:
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.jvm.GarbageCollectorMetricSet;
import com.codahale.metrics.jvm.MemoryUsageGaugeSet;
import com.codahale.metrics.jvm.ThreadStatesGaugeSet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.actuate.autoconfigure.ExportMetricWriter;
import org.springframework.boot.actuate.endpoint.MetricsEndpoint;
import org.springframework.boot.actuate.endpoint.MetricsEndpointMetricReader;
import org.springframework.boot.actuate.metrics.Metric;
import org.springframework.boot.actuate.metrics.statsd.StatsdMetricWriter;
import org.springframework.boot.actuate.metrics.writer.Delta;
import org.springframework.boot.actuate.metrics.writer.MetricWriter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
public class MetricsConfiguration {
#Bean
public MetricRegistry metricRegistry() {
final MetricRegistry metricRegistry = new MetricRegistry();
metricRegistry.register("jvm.memory",new MemoryUsageGaugeSet());
metricRegistry.register("jvm.thread-states",new ThreadStatesGaugeSet());
metricRegistry.register("jvm.garbage-collector",new GarbageCollectorMetricSet());
return metricRegistry;
}
/*
* Reading all metrics that appear on the /metrics endpoint to expose them to metrics writer beans.
*/
#Bean
public MetricsEndpointMetricReader metricsEndpointMetricReader(final MetricsEndpoint metricsEndpoint) {
return new MetricsEndpointMetricReader(metricsEndpoint);
}
#Bean
#ConditionalOnProperty(prefix = "statsd", name = {"prefix", "host", "port"})
#ExportMetricWriter
public MetricWriter statsdMetricWriter(#Value("${statsd.prefix}") String statsdPrefix,
#Value("${statsd.host}") String statsdHost,
#Value("${statsd.port}") int statsdPort) {
return new StatsdMetricWriter(statsdPrefix, statsdHost, statsdPort);
}
}
From what I've seen in spring-boot code, only calls to CounterService and GaugeService implementations are forwarded to dropwizard's MetricRegistry.
Therefore, as you already observed, only counter.* and gauge.* metrics from the /metrics endpoint will end up in Statsd.
System and JVM metrics are exposed through custom SystemPublicMetrics class, which doesn't use counter or gauge service.
I'm not sure if there is a simpler solution (maybe someone from Spring team will comment), but one way to do it (not spring-boot specific) would be to use a scheduled task that periodically writes system stats to the MetricRegistry.
To register JVM metrics you can use the JVM related MetricSets supplied by codehale.metrics.jvm library. You can just add the whole set without supplying whether they are gauges or counters.
Here is my example code where I am registering jvm related metrics:
#Configuration
#EnableMetrics(proxyTargetClass = true)
public class MetricsConfig {
#Autowired
private StatsdProperties statsdProperties;
#Autowired
private MetricsEndpoint metricsEndpoint;
#Autowired
private DataSourcePublicMetrics dataSourcePublicMetrics;
#Bean
#ExportMetricReader
public MetricReader metricReader() {
return new MetricRegistryMetricReader(metricRegistry());
}
public MetricRegistry metricRegistry() {
final MetricRegistry metricRegistry = new MetricRegistry();
//jvm metrics
metricRegistry.register("jvm.gc",new GarbageCollectorMetricSet());
metricRegistry.register("jvm.mem",new MemoryUsageGaugeSet());
metricRegistry.register("jvm.thread-states",new ThreadStatesGaugeSet());
return metricRegistry;
}
#Bean
#ConditionalOnProperty(prefix = "metrics.writer.statsd", name = {"host", "port"})
#ExportMetricWriter
public MetricWriter statsdMetricWriter() {
return new StatsdMetricWriter(
statsdProperties.getPrefix(),
statsdProperties.getHost(),
statsdProperties.getPort()
);
}
}
Note: I am using spring boot version 1.3.0.M4
Enjoy! (see the public metrics logged in console as dropwizard metrics)
#Configuration
#EnableMetrics
#EnableScheduling
public class MetricsReporter extends MetricsConfigurerAdapter {
#Autowired private SystemPublicMetrics systemPublicMetrics;
private MetricRegistry metricRegistry;
#Scheduled(fixedDelay = 5000)
void exportPublicMetrics() {
for (Metric<?> metric : systemPublicMetrics.metrics()) {
Counter counter = metricRegistry.counter(metric.getName());
counter.dec(counter.getCount());
counter.inc(Double.valueOf(metric.getValue().toString()).longValue());
}
}
#Override
public void configureReporters(MetricRegistry metricRegistry) {
this.metricRegistry = metricRegistry;
ConsoleReporter.forRegistry(metricRegistry).build().start(10, TimeUnit.SECONDS);
}
}