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0

I would like to expose Prometheus metrics to an endpoint.
I don't have spring-boot so I need to expose metrics on my own.

I took example code from:

https://micrometer.io/docs/registry/prometheus#_configuring

PrometheusMeterRegistry prometheusRegistry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);

try 
 HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
 server.createContext("/prometheus", httpExchange -> 
 String response = prometheusRegistry.scrape(); (1)
 httpExchange.sendResponseHeaders(200, response.getBytes().length);
 try (OutputStream os = httpExchange.getResponseBody()) 
 os.write(response.getBytes());
 
 );

 new Thread(server::start).start();
 catch (IOException e) 
 throw new RuntimeException(e);

While it works, I would like to avoid using sun package. Is there a way to do this as short and elegant with netty, okhttp or apache for example?

Thank you.

java http prometheus micrometer

share|improve this question

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

add a comment | 

0

I would like to expose Prometheus metrics to an endpoint.
I don't have spring-boot so I need to expose metrics on my own.

I took example code from:

https://micrometer.io/docs/registry/prometheus#_configuring

PrometheusMeterRegistry prometheusRegistry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);

try 
 HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
 server.createContext("/prometheus", httpExchange -> 
 String response = prometheusRegistry.scrape(); (1)
 httpExchange.sendResponseHeaders(200, response.getBytes().length);
 try (OutputStream os = httpExchange.getResponseBody()) 
 os.write(response.getBytes());
 
 );

 new Thread(server::start).start();
 catch (IOException e) 
 throw new RuntimeException(e);

While it works, I would like to avoid using sun package. Is there a way to do this as short and elegant with netty, okhttp or apache for example?

Thank you.

java http prometheus micrometer

share|improve this question

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

add a comment | 

I would like to expose Prometheus metrics to an endpoint.
I don't have spring-boot so I need to expose metrics on my own.

I took example code from:

https://micrometer.io/docs/registry/prometheus#_configuring

PrometheusMeterRegistry prometheusRegistry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);

try 
 HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
 server.createContext("/prometheus", httpExchange -> 
 String response = prometheusRegistry.scrape(); (1)
 httpExchange.sendResponseHeaders(200, response.getBytes().length);
 try (OutputStream os = httpExchange.getResponseBody()) 
 os.write(response.getBytes());
 
 );

 new Thread(server::start).start();
 catch (IOException e) 
 throw new RuntimeException(e);

While it works, I would like to avoid using sun package. Is there a way to do this as short and elegant with netty, okhttp or apache for example?

Thank you.

java http prometheus micrometer

share|improve this question

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

PrometheusMeterRegistry prometheusRegistry = new PrometheusMeterRegistry(PrometheusConfig.DEFAULT);

try 
 HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
 server.createContext("/prometheus", httpExchange -> 
 String response = prometheusRegistry.scrape(); (1)
 httpExchange.sendResponseHeaders(200, response.getBytes().length);
 try (OutputStream os = httpExchange.getResponseBody()) 
 os.write(response.getBytes());
 
 );

 new Thread(server::start).start();
 catch (IOException e) 
 throw new RuntimeException(e);

java http prometheus micrometer

java http prometheus micrometer

share|improve this question

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

share|improve this question

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

asked Mar 26 at 19:31

KompiKompiKompiKompi

1051313 bronze badges

1 Answer
1

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1

You may use this piece of code:

Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
context.addServlet(new ServletHolder(new MetricsServlet()), "/prometheus");

There are no sun packages in imports, only Jetty and Prometheus Java client:

import io.prometheus.client.exporter.MetricsServlet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

share|improve this answer

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

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1

You may use this piece of code:

Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
context.addServlet(new ServletHolder(new MetricsServlet()), "/prometheus");

There are no sun packages in imports, only Jetty and Prometheus Java client:

import io.prometheus.client.exporter.MetricsServlet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

share|improve this answer

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

add a comment | 

1

You may use this piece of code:

Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
context.addServlet(new ServletHolder(new MetricsServlet()), "/prometheus");

There are no sun packages in imports, only Jetty and Prometheus Java client:

import io.prometheus.client.exporter.MetricsServlet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

share|improve this answer

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

add a comment | 

You may use this piece of code:

Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
context.addServlet(new ServletHolder(new MetricsServlet()), "/prometheus");

There are no sun packages in imports, only Jetty and Prometheus Java client:

import io.prometheus.client.exporter.MetricsServlet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

share|improve this answer

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
context.addServlet(new ServletHolder(new MetricsServlet()), "/prometheus");

import io.prometheus.client.exporter.MetricsServlet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

share|improve this answer

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges

answered Apr 22 at 14:44

NolequenNolequen

54411 gold badge99 silver badges2222 bronze badges