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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.tenant;
import com.yahoo.path.Path;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.TenantName;
import com.yahoo.vespa.config.server.rpc.ConfigResponseFactory;
import com.yahoo.vespa.config.server.GlobalComponentRegistry;
import com.yahoo.vespa.config.server.host.HostValidator;
import com.yahoo.vespa.config.server.ReloadHandler;
import com.yahoo.vespa.config.server.RequestHandler;
import com.yahoo.vespa.config.server.application.TenantApplications;
import com.yahoo.vespa.config.server.deploy.TenantFileSystemDirs;
import com.yahoo.vespa.config.server.monitoring.Metrics;
import com.yahoo.vespa.config.server.session.*;
import java.util.Collections;
/**
* Builder for helping out with tenant creation. Each of a tenants dependencies may be overridden for testing.
*
* @author Ulf Lilleengen
*/
public class TenantBuilder {
private final Path tenantPath;
private final GlobalComponentRegistry componentRegistry;
private final TenantName tenant;
private RemoteSessionRepo remoteSessionRepo;
private LocalSessionRepo localSessionRepo;
private SessionFactory sessionFactory;
private LocalSessionLoader localSessionLoader;
private TenantApplications applicationRepo;
private TenantRequestHandler reloadHandler;
private RequestHandler requestHandler;
private RemoteSessionFactory remoteSessionFactory;
private TenantFileSystemDirs tenantFileSystemDirs;
private HostValidator<ApplicationId> hostValidator;
private TenantBuilder(GlobalComponentRegistry componentRegistry, TenantName tenant) {
this.componentRegistry = componentRegistry;
this.tenantPath = TenantRepository.getTenantPath(tenant);
this.tenant = tenant;
}
public static TenantBuilder create(GlobalComponentRegistry componentRegistry, TenantName tenant) {
return new TenantBuilder(componentRegistry, tenant);
}
public TenantBuilder withSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
return this;
}
public TenantBuilder withLocalSessionRepo(LocalSessionRepo localSessionRepo) {
this.localSessionRepo = localSessionRepo;
return this;
}
public TenantBuilder withRemoteSessionRepo(RemoteSessionRepo remoteSessionRepo) {
this.remoteSessionRepo = remoteSessionRepo;
return this;
}
public TenantBuilder withApplicationRepo(TenantApplications applicationRepo) {
this.applicationRepo = applicationRepo;
return this;
}
public TenantBuilder withRequestHandler(RequestHandler requestHandler) {
this.requestHandler = requestHandler;
return this;
}
/**
* Create a real tenant from the properties given by this builder.
*
* @return a new {@link Tenant} instance.
*/
public Tenant build() {
createTenantRequestHandler();
createApplicationRepo();
createRemoteSessionFactory();
createRemoteSessionRepo();
createServerDbDirs();
createSessionFactory();
createLocalSessionRepo();
return new Tenant(tenant,
tenantPath,
sessionFactory,
localSessionRepo,
remoteSessionRepo,
requestHandler,
reloadHandler,
applicationRepo,
componentRegistry.getCurator(),
tenantFileSystemDirs);
}
private void createLocalSessionRepo() {
if (localSessionRepo == null) {
localSessionRepo = new LocalSessionRepo(tenantFileSystemDirs, localSessionLoader, componentRegistry.getClock(),
componentRegistry.getConfigserverConfig().sessionLifetime(),
componentRegistry.getCurator());
}
}
private void createSessionFactory() {
if (sessionFactory == null || localSessionLoader == null) {
SessionFactoryImpl impl = new SessionFactoryImpl(componentRegistry, applicationRepo,
tenantFileSystemDirs, hostValidator, tenant);
if (sessionFactory == null) {
sessionFactory = impl;
}
if (localSessionLoader == null) {
localSessionLoader = impl;
}
}
}
private void createApplicationRepo() {
if (applicationRepo == null) {
applicationRepo = reloadHandler.applications();
}
}
private void createTenantRequestHandler() {
if (requestHandler == null || reloadHandler == null) {
TenantRequestHandler impl = new TenantRequestHandler(componentRegistry.getMetrics(),
tenant,
Collections.singletonList(componentRegistry.getReloadListener()),
ConfigResponseFactory.create(componentRegistry.getConfigserverConfig()),
componentRegistry.getHostRegistries(),
componentRegistry.getCurator());
if (hostValidator == null) {
this.hostValidator = impl;
}
if (requestHandler == null) {
requestHandler = impl;
}
reloadHandler = impl;
}
}
private void createRemoteSessionFactory() {
if (remoteSessionFactory == null) {
remoteSessionFactory = new RemoteSessionFactory(componentRegistry, tenant);
}
}
private void createRemoteSessionRepo() {
if (remoteSessionRepo == null) {
remoteSessionRepo = new RemoteSessionRepo(componentRegistry.getCurator(),
remoteSessionFactory,
reloadHandler,
tenant,
applicationRepo,
componentRegistry.getMetrics().getOrCreateMetricUpdater(Metrics.createDimensions(tenant)));
}
}
private void createServerDbDirs() {
if (tenantFileSystemDirs == null) {
tenantFileSystemDirs = new TenantFileSystemDirs(componentRegistry.getConfigServerDB(), tenant);
}
}
public TenantName getTenantName() { return tenant; }
}
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