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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.container;
import com.yahoo.component.AbstractComponent;
import com.yahoo.component.provider.ComponentRegistry;
import com.yahoo.filedistribution.fileacquirer.FileAcquirer;
import com.yahoo.filedistribution.fileacquirer.FileAcquirerFactory;
import com.yahoo.jdisc.handler.RequestHandler;
import com.yahoo.jdisc.service.ClientProvider;
import com.yahoo.jdisc.service.ServerProvider;
import com.yahoo.vespa.config.ConfigTransformer;
import com.yahoo.vespa.config.UrlDownloader;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
/**
* The container instance. This is a Vespa internal object, external code should
* only depend on this if there are no other options, and must be prepared to
* see it change at no warning.
*
* @author bratseth
*/
public class Container {
private volatile boolean usingCustomFileAcquirer = false;
private volatile boolean disabledUrlDownloader = false;
private volatile ComponentRegistry<RequestHandler> requestHandlerRegistry;
private volatile ComponentRegistry<ClientProvider> clientProviderRegistry;
private volatile ComponentRegistry<ServerProvider> serverProviderRegistry;
private volatile ComponentRegistry<AbstractComponent> componentRegistry;
private volatile FileAcquirer fileAcquirer;
private volatile UrlDownloader urlDownloader;
private static final Logger logger = Logger.getLogger(Container.class.getName());
// TODO: Make this final again.
private static Container instance = new Container();
public static Container get() { return instance; }
public void shutdown() {
if (fileAcquirer != null)
fileAcquirer.shutdown();
if (urlDownloader != null)
urlDownloader.shutdown();
}
//Used to acquire files originating from the application package.
public FileAcquirer getFileAcquirer() {
return fileAcquirer;
}
/**
* Hack. For internal use only, will be removed later.
*
* Used by Application to be able to repeatedly set up containers.
*/
public static void resetInstance() {
instance = new Container();
}
public ComponentRegistry<RequestHandler> getRequestHandlerRegistry() {
return requestHandlerRegistry;
}
public void setRequestHandlerRegistry(ComponentRegistry<RequestHandler> requestHandlerRegistry) {
this.requestHandlerRegistry = requestHandlerRegistry;
}
public ComponentRegistry<ClientProvider> getClientProviderRegistry() {
return clientProviderRegistry;
}
public void setClientProviderRegistry(ComponentRegistry<ClientProvider> clientProviderRegistry) {
this.clientProviderRegistry = clientProviderRegistry;
}
public ComponentRegistry<ServerProvider> getServerProviderRegistry() {
return serverProviderRegistry;
}
public void setServerProviderRegistry(ComponentRegistry<ServerProvider> serverProviderRegistry) {
this.serverProviderRegistry = serverProviderRegistry;
}
public ComponentRegistry<AbstractComponent> getComponentRegistry() {
return componentRegistry;
}
public void setComponentRegistry(ComponentRegistry<AbstractComponent> registry) {
registry.freeze();
this.componentRegistry = registry;
}
// Only intended for use by the Server instance.
public void setupFileAcquirer(QrConfig.Filedistributor filedistributorConfig) {
if (usingCustomFileAcquirer)
return;
if (filedistributorConfig.configid().isEmpty()) {
if (fileAcquirer != null)
logger.warning("Disabling file distribution");
fileAcquirer = null;
} else {
fileAcquirer = FileAcquirerFactory.create(filedistributorConfig.configid());
}
setPathAcquirer(fileAcquirer);
}
/** Only for internal use. */
public void setCustomFileAcquirer(FileAcquirer fileAcquirer) {
if (this.fileAcquirer != null) {
throw new RuntimeException("Can't change file acquirer. Is " +
this.fileAcquirer + " attempted to set to " + fileAcquirer);
}
usingCustomFileAcquirer = true;
this.fileAcquirer = fileAcquirer;
setPathAcquirer(fileAcquirer);
}
private static void setPathAcquirer(FileAcquirer fileAcquirer) {
ConfigTransformer.setPathAcquirer(fileReference -> {
try {
return fileAcquirer.waitFor(fileReference, 15, TimeUnit.MINUTES).toPath();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RuntimeException(e);
}
});
}
public void setupUrlDownloader() {
if (disabledUrlDownloader) {
return;
}
this.urlDownloader = new UrlDownloader();
ConfigTransformer.setUrlDownloader(urlDownloader);
}
public void disableUrlDownloader() {
disabledUrlDownloader = true;
}
}
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