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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.orchestrator;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.ApplicationName;
import com.yahoo.config.provision.InstanceName;
import com.yahoo.config.provision.TenantName;
import com.yahoo.vespa.applicationmodel.ApplicationInstance;
import com.yahoo.vespa.applicationmodel.ApplicationInstanceId;
import com.yahoo.vespa.applicationmodel.ApplicationInstanceReference;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceCluster;
import com.yahoo.vespa.applicationmodel.ServiceInstance;
import com.yahoo.vespa.applicationmodel.TenantId;
import com.yahoo.vespa.service.monitor.ServiceMonitor;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static java.util.stream.Collectors.toSet;
/**
* Utility methods for working with service monitor model entity objects.
*
* @author bakksjo
*/
public class OrchestratorUtil {
// Utility class, not to be instantiated.
private OrchestratorUtil() {}
public static Set<HostName> getHostsUsedByApplicationInstance(ApplicationInstance applicationInstance) {
return applicationInstance.serviceClusters().stream()
.flatMap(serviceCluster -> getHostsUsedByServiceCluster(serviceCluster).stream())
.collect(toSet());
}
public static Set<HostName> getHostsUsedByServiceCluster(ServiceCluster serviceCluster) {
return serviceCluster.serviceInstances().stream()
.map(ServiceInstance::hostName)
.collect(toSet());
}
private static final Pattern APPLICATION_INSTANCE_REFERENCE_REST_FORMAT_PATTERN = Pattern.compile("^([^:]+):(.+)$");
/** Returns an ApplicationInstanceReference constructed from the serialized format used in the REST API. */
public static ApplicationInstanceReference parseApplicationInstanceReference(String restFormat) {
if (restFormat == null) {
throw new IllegalArgumentException("Could not construct instance id from null string");
}
Matcher matcher = APPLICATION_INSTANCE_REFERENCE_REST_FORMAT_PATTERN.matcher(restFormat);
if (!matcher.matches()) {
throw new IllegalArgumentException("Could not construct instance id from string \"" + restFormat +"\"");
}
TenantId tenantId = new TenantId(matcher.group(1));
ApplicationInstanceId applicationInstanceId = new ApplicationInstanceId(matcher.group(2));
return new ApplicationInstanceReference(tenantId, applicationInstanceId);
}
public static String toRestApiFormat(ApplicationInstanceReference applicationInstanceReference) {
return applicationInstanceReference.tenantId() + ":" + applicationInstanceReference.applicationInstanceId();
}
public static ApplicationInstanceReference toApplicationInstanceReference(
ApplicationId applicationid,
ServiceMonitor serviceMonitor)
throws ApplicationIdNotFoundException {
Set<ApplicationInstanceReference> references = serviceMonitor.getAllApplicationInstanceReferences();
List<ApplicationInstanceReference> referencesWithId = references.stream()
.filter(a -> OrchestratorUtil.toApplicationId(a).equals(applicationid))
.toList();
if (referencesWithId.size() > 1) {
String msg = String.format("ApplicationId '%s' was not unique but mapped to '%s'", applicationid, referencesWithId);
throw new ApplicationIdNotFoundException(msg);
}
if (referencesWithId.size() == 0) {
throw new ApplicationIdNotFoundException();
}
return referencesWithId.get(0);
}
public static ApplicationId toApplicationId(ApplicationInstanceReference appRef) {
String appNameStr = appRef.asString();
String[] appNameParts = appNameStr.split(":");
// Env, region and instance seems to be optional due to the hardcoded config server app
// Assume here that first two are tenant and application name.
if (appNameParts.length == 2) {
return ApplicationId.from(TenantName.from(appNameParts[0]),
ApplicationName.from(appNameParts[1]),
InstanceName.defaultName());
}
// Other normal application should have 5 parts.
if (appNameParts.length != 5) {
throw new IllegalArgumentException("Application reference not valid (not 5 parts): " + appRef);
}
return ApplicationId.from(TenantName.from(appNameParts[0]),
ApplicationName.from(appNameParts[1]),
InstanceName.from(appNameParts[4]));
}
}
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