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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.metrics;
import com.yahoo.config.model.api.HostInfo;
import com.yahoo.config.model.api.ServiceInfo;
import com.yahoo.vespa.config.server.application.Application;
import com.yahoo.vespa.config.server.http.v2.response.DeploymentMetricsResponse;
import java.net.URI;
import java.util.Collection;
import java.util.function.Predicate;
/**
* Finds all hosts we want to fetch metrics for, generates the appropriate URIs
* and returns the generated MetricsResponse.
*
* @author olaa
*/
public class DeploymentMetricsRetriever {
private final ClusterDeploymentMetricsRetriever metricsRetriever;
public DeploymentMetricsRetriever() {
this(new ClusterDeploymentMetricsRetriever());
}
public DeploymentMetricsRetriever(ClusterDeploymentMetricsRetriever metricsRetriever) {
this.metricsRetriever = metricsRetriever;
}
public DeploymentMetricsResponse getMetrics(Application application) {
var hosts = getHostsOfApplication(application);
var clusterMetrics = metricsRetriever.requestMetricsGroupedByCluster(hosts);
return new DeploymentMetricsResponse(application.getId(), clusterMetrics);
}
private static Collection<URI> getHostsOfApplication(Application application) {
return application.getModel().getHosts().stream()
.filter(host -> host.getServices().stream().noneMatch(isLogserver()))
.map(HostInfo::getHostname)
.map(DeploymentMetricsRetriever::createMetricsProxyURI)
.toList();
}
private static Predicate<ServiceInfo> isLogserver() {
return serviceInfo -> serviceInfo.getServiceType().equalsIgnoreCase("logserver");
}
private static URI createMetricsProxyURI(String hostname) {
return URI.create("http://" + hostname + ":19092/metrics/v1/values?consumer=Vespa");
}
}
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