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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.jdisc.core;
import com.google.inject.AbstractModule;
import com.google.inject.Injector;
import com.yahoo.jdisc.AbstractResource;
import com.yahoo.jdisc.SharedResource;
import com.yahoo.jdisc.application.BindingSet;
import com.yahoo.jdisc.application.BindingSetSelector;
import com.yahoo.jdisc.application.ContainerBuilder;
import com.yahoo.jdisc.application.ResourcePool;
import com.yahoo.jdisc.handler.RequestHandler;
import com.yahoo.jdisc.service.BindingSetNotFoundException;
import com.yahoo.jdisc.service.CurrentContainer;
import com.yahoo.jdisc.service.NoBindingSetSelectedException;
import com.yahoo.jdisc.service.ServerProvider;
import java.net.URI;
import java.util.Map;
/**
* @author Simon Thoresen Hult
* @author bjorncs
*/
public class ActiveContainer extends AbstractResource implements CurrentContainer {
private final ContainerTermination termination;
private final Injector guiceInjector;
private final Iterable<ServerProvider> serverProviders;
private final ResourcePool resourceReferences = new ResourcePool();
private final Map<String, BindingSet<RequestHandler>> serverBindings;
private final Map<String, BindingSet<RequestHandler>> clientBindings;
private final BindingSetSelector bindingSetSelector;
private final TimeoutManagerImpl timeoutMgr;
public ActiveContainer(ContainerBuilder builder) {
serverProviders = builder.serverProviders().activate();
serverProviders.forEach(resourceReferences::retain);
serverBindings = builder.activateServerBindings();
serverBindings.forEach(
(ignoredName, bindingSet) -> bindingSet.forEach(
binding -> resourceReferences.retain(binding.getValue())));
clientBindings = builder.activateClientBindings();
clientBindings.forEach(
(ignoredName, bindingSet) -> bindingSet.forEach(
binding -> resourceReferences.retain(binding.getValue())));
bindingSetSelector = builder.getInstance(BindingSetSelector.class);
timeoutMgr = builder.getInstance(TimeoutManagerImpl.class);
timeoutMgr.start();
builder.guiceModules().install(new AbstractModule() {
@Override
protected void configure() {
bind(TimeoutManagerImpl.class).toInstance(timeoutMgr);
}
});
guiceInjector = builder.guiceModules().activate();
termination = new ContainerTermination(builder.appContext());
}
@Override
protected void destroy() {
resourceReferences.release();
timeoutMgr.shutdown();
termination.run();
super.destroy();
}
/**
* Make this instance retain a reference to the resource until it is destroyed.
*/
void retainReference(SharedResource resource) {
resourceReferences.retain(resource);
}
public ContainerTermination shutdown() {
return termination;
}
public Injector guiceInjector() {
return guiceInjector;
}
public Iterable<ServerProvider> serverProviders() {
return serverProviders;
}
public Map<String, BindingSet<RequestHandler>> serverBindings() {
return serverBindings;
}
public BindingSet<RequestHandler> serverBindings(String setName) {
return serverBindings.get(setName);
}
public Map<String, BindingSet<RequestHandler>> clientBindings() {
return clientBindings;
}
public BindingSet<RequestHandler> clientBindings(String setName) {
return clientBindings.get(setName);
}
TimeoutManagerImpl timeoutManager() {
return timeoutMgr;
}
@Override
public ContainerSnapshot newReference(URI uri, Object context) {
String name = bindingSetSelector.select(uri);
if (name == null) {
throw new NoBindingSetSelectedException(uri);
}
BindingSet<RequestHandler> serverBindings = serverBindings(name);
BindingSet<RequestHandler> clientBindings = clientBindings(name);
if (serverBindings == null || clientBindings == null) {
throw new BindingSetNotFoundException(name);
}
return new ContainerSnapshot(this, serverBindings, clientBindings, context);
}
}
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