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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.application;
import com.yahoo.component.Version;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.config.server.NotFoundException;
import java.time.Instant;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
/**
* Used during config request handling to route to the right config model
* based on application id and version.
*
* @author Vegard Sjonfjell
*/
public final class ApplicationMapper {
private final Map<ApplicationId, ApplicationVersions> requestHandlers = new ConcurrentHashMap<>();
private ApplicationVersions applicationVersions(ApplicationId applicationId) {
ApplicationVersions versions = requestHandlers.get(applicationId);
if (versions == null) throw new NotFoundException("No such application id: " + applicationId);
return versions;
}
/**
* Register an Application to an application id and specific vespa version
*/
public void register(ApplicationId applicationId, ApplicationVersions applicationVersions) {
requestHandlers.put(applicationId, applicationVersions);
}
/**
* Remove all applications associated with this application id
*/
public void remove(ApplicationId applicationId) {
requestHandlers.remove(applicationId);
}
/**
* Retrieve the Application corresponding to this application id and specified vespa version.
*
* @return the matching application, or null if none matches
*/
public Application getForVersion(ApplicationId applicationId, Optional<Version> vespaVersion, Instant now) throws VersionDoesNotExistException {
return applicationVersions(applicationId).getForVersionOrLatest(vespaVersion, now);
}
/** Returns whether this registry has an application for the given application id */
public boolean hasApplication(ApplicationId applicationId, Instant now) {
return hasApplicationForVersion(applicationId, Optional.empty(), now);
}
/** Returns whether this registry has an application for the given application id and vespa version */
public boolean hasApplicationForVersion(ApplicationId applicationId, Optional<Version> vespaVersion, Instant now) {
try {
return getForVersion(applicationId, vespaVersion, now) != null;
}
catch (VersionDoesNotExistException | NotFoundException ex) {
return false;
}
}
/**
* Get the number of applications registered
*/
public int numApplications() {
return requestHandlers.size();
}
public Set<ApplicationId> listApplicationIds() {
return Collections.unmodifiableSet(requestHandlers.keySet());
}
public List<Application> listApplications(ApplicationId applicationId) {
return requestHandlers.get(applicationId).applications();
}
}
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