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[BAEL-13458] - Update Spring REST Metrics article, spring boot 2, micrometer implementation

This commit is contained in:
amit2103 2019-04-27 19:48:09 +05:30
parent 37a5061c9d
commit 3b05e26abf
7 changed files with 33 additions and 33 deletions
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6
spring-rest-full/pom.xml
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@ -8,10 +8,10 @@
<packaging>war</packaging>
<parent>
<artifactId>parent-boot-1</artifactId>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-1</relativePath>
<relativePath>../parent-boot-2</relativePath>
</parent>
<dependencies>
@ -129,6 +129,7 @@
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>${javassist.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
@ -287,6 +288,7 @@
<!-- util -->
<guava.version>19.0</guava.version>
<commons-lang3.version>3.5</commons-lang3.version>
<javassist.version>3.25.0-GA</javassist.version>
<!-- Maven plugins -->
<cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>

2
spring-rest-full/src/main/java/org/baeldung/persistence/service/common/AbstractService.java
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@ -17,7 +17,7 @@ public abstract class AbstractService<T extends Serializable> implements IOperat
@Override
@Transactional(readOnly = true)
public T findOne(final long id) {
return getDao().findOne(id);
return getDao().findById(id).orElse(null);
}
// read - all

2
spring-rest-full/src/main/java/org/baeldung/spring/Application.java
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@ -7,7 +7,7 @@ import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.web.context.request.RequestContextListener;

5
spring-rest-full/src/main/java/org/baeldung/spring/WebConfig.java
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@ -6,13 +6,13 @@ import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@Configuration
@ComponentScan("org.baeldung.web")
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
public class WebConfig implements WebMvcConfigurer {
public WebConfig() {
super();
@ -29,7 +29,6 @@ public class WebConfig extends WebMvcConfigurerAdapter {
// API
@Override
public void addViewControllers(final ViewControllerRegistry registry) {
super.addViewControllers(registry);
registry.addViewController("/graph.html");
registry.addViewController("/homepage.html");
}

18
spring-rest-full/src/main/java/org/baeldung/web/metric/ActuatorMetricService.java
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@ -6,16 +6,18 @@ import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.endpoint.MetricReaderPublicMetrics;
import org.springframework.boot.actuate.metrics.Metric;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.Meter;
import io.micrometer.core.instrument.MeterRegistry;
@Service
public class ActuatorMetricService implements IActuatorMetricService {
@Autowired
private MetricReaderPublicMetrics publicMetrics;
private MeterRegistry publicMetrics;
private final List<ArrayList<Integer>> statusMetricsByMinute;
private final List<String> statusList;
@ -68,7 +70,7 @@ public class ActuatorMetricService implements IActuatorMetricService {
private void exportMetrics() {
final ArrayList<Integer> lastMinuteStatuses = initializeStatuses(statusList.size());
for (final Metric<?> counterMetric : publicMetrics.metrics()) {
for (final Meter counterMetric : publicMetrics.getMeters()) {
updateMetrics(counterMetric, lastMinuteStatuses);
}
@ -83,17 +85,17 @@ public class ActuatorMetricService implements IActuatorMetricService {
return counterList;
}
private void updateMetrics(final Metric<?> counterMetric, final ArrayList<Integer> statusCount) {
private void updateMetrics(final Meter counterMetric, final ArrayList<Integer> statusCount) {
String status = "";
int index = -1;
int oldCount = 0;
if (counterMetric.getName().contains("counter.status.")) {
status = counterMetric.getName().substring(15, 18); // example 404, 200
if (counterMetric.getId().getName().contains("counter.status.")) {
status = counterMetric.getId().getName().substring(15, 18); // example 404, 200
appendStatusIfNotExist(status, statusCount);
index = statusList.indexOf(status);
oldCount = statusCount.get(index) == null ? 0 : statusCount.get(index);
statusCount.set(index, counterMetric.getValue().intValue() + oldCount);
statusCount.set(index, (int)((Counter) counterMetric).count() + oldCount);
}
}

31
spring-rest-full/src/main/java/org/baeldung/web/metric/CustomActuatorMetricService.java
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@ -6,20 +6,18 @@ import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.metrics.CounterService;
import org.springframework.boot.actuate.metrics.Metric;
import org.springframework.boot.actuate.metrics.repository.InMemoryMetricRepository;
import org.springframework.boot.actuate.metrics.repository.MetricRepository;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.search.Search;
@Service
public class CustomActuatorMetricService implements ICustomActuatorMetricService {
private MetricRepository repo;
@Autowired
private CounterService counter;
private MeterRegistry registry;
private final List<ArrayList<Integer>> statusMetricsByMinute;
private final List<String> statusList;
@ -27,7 +25,6 @@ public class CustomActuatorMetricService implements ICustomActuatorMetricService
public CustomActuatorMetricService() {
super();
repo = new InMemoryMetricRepository();
statusMetricsByMinute = new ArrayList<ArrayList<Integer>>();
statusList = new ArrayList<String>();
}
@ -36,9 +33,10 @@ public class CustomActuatorMetricService implements ICustomActuatorMetricService
@Override
public void increaseCount(final int status) {
counter.increment("status." + status);
if (!statusList.contains("counter.status." + status)) {
statusList.add("counter.status." + status);
String counterName = "counter.status." + status;
registry.counter(counterName).increment(1);
if (!statusList.contains(counterName)) {
statusList.add(counterName);
}
}
@ -78,17 +76,16 @@ public class CustomActuatorMetricService implements ICustomActuatorMetricService
@Scheduled(fixedDelay = 60000)
private void exportMetrics() {
Metric<?> metric;
final ArrayList<Integer> statusCount = new ArrayList<Integer>();
for (final String status : statusList) {
metric = repo.findOne(status);
if (metric != null) {
statusCount.add(metric.getValue().intValue());
repo.reset(status);
Search search = registry.find(status);
if (search != null) {
Counter counter = search.counter();
statusCount.add(counter != null ? ((int) counter.count()) : 0);
registry.remove(counter);
} else {
statusCount.add(0);
}
}
statusMetricsByMinute.add(statusCount);
}

2
spring-rest-full/src/main/resources/application.properties
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@ -1,3 +1,3 @@
server.port=8082
server.context-path=/spring-rest-full
server.servlet.context-path=/spring-rest-full
endpoints.metrics.enabled=true