CXF metrics for prometheus

Collects the following metrics for each endpoint and operation

cxf_requests_total       - total number of incoming cxf requests,
cxf_requests_success     - total number of successfully processed cxf requests,
cxf_requests_failed      - total number of failed cxf requests,
cxf_requests_seconds_sum - total execution time of cxf requests.

Besides, histograms are reported for execution time statistics. For example, for configuration bellow

@Bean
public Endpoint server1(final Bus bus, final MyFirstWebService service) {
    final EndpointImpl endpoint = new EndpointImpl(bus, service);
    endpoint.setEndpointName(new QName("server1"));
    endpoint.publish("/server1");
    return endpoint;
}

@Bean
public Endpoint server2(final Bus bus, final MySecondWebService service) {
    final EndpointImpl endpoint = new EndpointImpl(bus, service);
    endpoint.setEndpointName(new QName("server2"));
    endpoint.publish("/server2");
    return endpoint;
}

@Bean
public MyCxfClient client(final @Value("${my.cxf.client.url}") String url) {
    final JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
    factory.setAddress(url);
    factory.setEndpointName(new QName("client"));
    return factory.create(MyCxfClient.class);
}

the cxf_requests_total metric will be available for 'server1' endpoint as 'cxf_requests_total{endpoint="server1",operation="server1Method"}' for each web service method of MyFirstWebService.
And the same for other metrics of MyFirstWebService, MySecondWebService and MyCxfClient.

To enable cxf metrics for prometheus add dependency to your pom.xml.

<dependency>
    <groupId>io.github.ddk-prog</groupId>
    <artifactId>cxf-prometheus-metrics</artifactId>
    <version>1.1.1</version>
</dependency>

Add the following bean to your application configuration.

@Bean
public FactoryBeanListener cxfPrometheusFeatureBean(final CollectorRegistry registry) {
    return new PrometheusFactoryBeanListener(registry);
}