44 lines
1.5 KiB
Java
44 lines
1.5 KiB
Java
package org.gcube.smartgears.extensions.resource;
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import static org.gcube.smartgears.Constants.plain_text;
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import static org.gcube.smartgears.extensions.HttpExtension.Method.GET;
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import java.io.IOException;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.gcube.smartgears.extensions.ApiResource;
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import org.gcube.smartgears.extensions.ApiSignature;
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import io.micrometer.core.instrument.Metrics;
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import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics;
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import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics;
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import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics;
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import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics;
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import io.micrometer.core.instrument.binder.system.ProcessorMetrics;
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import io.micrometer.prometheus.PrometheusConfig;
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import io.micrometer.prometheus.PrometheusMeterRegistry;
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public class MetricsResource extends ApiResource {
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private static final long serialVersionUID = 1L;
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public static final String mapping = "/metrics";
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private static final ApiSignature signature = handles(mapping).with(method(GET).produces(plain_text));
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MetricsResource() {
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super(signature);
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}
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@Override
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public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
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PrometheusMeterRegistry registry = (PrometheusMeterRegistry) Metrics.globalRegistry.getRegistries().stream().findFirst().get();
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registry.scrape(resp.getWriter());
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}
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} |