libre.sh/keycloak-scim
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fix: refines the provider caching logic (#34220)

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closes: #34219

Signed-off-by: Steve Hawkins <shawkins@redhat.com>
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Steven Hawkins 2024-10-23 15:00:00 -04:00 committed by GitHub
parent e520c71a1a
commit 964f6b9aac
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1 changed files with 15 additions and 33 deletions
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48
services/src/main/java/org/keycloak/services/DefaultKeycloakSession.java
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@ -60,9 +60,11 @@ import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
/**
@ -71,7 +73,7 @@ import java.util.stream.Collectors;
public abstract class DefaultKeycloakSession implements KeycloakSession {
private final DefaultKeycloakSessionFactory factory;
private final Map<Integer, Provider> providers = new HashMap<>();
private final Map<List<String>, Provider> providers = new HashMap<>();
private final List<Provider> closable = new LinkedList<>();
private final DefaultKeycloakTransactionManager transactionManager;
private final Map<String, Object> attributes = new HashMap<>();
@ -167,16 +169,20 @@ public abstract class DefaultKeycloakSession implements KeycloakSession {
@SuppressWarnings("unchecked")
@Override
public <T extends Provider> T getProvider(Class<T> clazz) {
Integer hash = clazz.hashCode();
T provider = (T) providers.get(hash);
List<String> key = List.of(clazz.getName());
return getOrCreateProvider(key, () -> factory.getProviderFactory(clazz));
}
private <T extends Provider> T getOrCreateProvider(List<String> key, Supplier<ProviderFactory<T>> supplier) {
T provider = (T) providers.get(key);
// KEYCLOAK-11890 - Avoid using HashMap.computeIfAbsent() to implement logic in outer if() block below,
// since per JDK-8071667 the remapping function should not modify the map during computation. While
// allowed on JDK 1.8, attempt of such a modification throws ConcurrentModificationException with JDK 9+
if (provider == null) {
ProviderFactory<T> providerFactory = factory.getProviderFactory(clazz);
ProviderFactory<T> providerFactory = supplier.get();
if (providerFactory != null) {
provider = providerFactory.create(DefaultKeycloakSession.this);
providers.put(hash, provider);
providers.put(key, provider);
}
}
return provider;
@ -185,19 +191,8 @@ public abstract class DefaultKeycloakSession implements KeycloakSession {
@SuppressWarnings("unchecked")
@Override
public <T extends Provider> T getProvider(Class<T> clazz, String id) {
Integer hash = clazz.hashCode() + id.hashCode();
T provider = (T) providers.get(hash);
// KEYCLOAK-11890 - Avoid using HashMap.computeIfAbsent() to implement logic in outer if() block below,
// since per JDK-8071667 the remapping function should not modify the map during computation. While
// allowed on JDK 1.8, attempt of such a modification throws ConcurrentModificationException with JDK 9+
if (provider == null) {
ProviderFactory<T> providerFactory = factory.getProviderFactory(clazz, id);
if (providerFactory != null) {
provider = providerFactory.create(DefaultKeycloakSession.this);
providers.put(hash, provider);
}
}
return provider;
List<String> key = List.of(clazz.getName(), id);
return getOrCreateProvider(key, () -> factory.getProviderFactory(clazz, id));
}
@Override
@ -214,22 +209,9 @@ public abstract class DefaultKeycloakSession implements KeycloakSession {
@Override
@SuppressWarnings("unchecked")
public <T extends Provider> T getComponentProvider(Class<T> clazz, String componentId, Function<KeycloakSessionFactory, ComponentModel> modelGetter) {
Integer hash = clazz.hashCode() + componentId.hashCode();
T provider = (T) providers.get(hash);
List<String> key = List.of("component", clazz.getName(), componentId);
final RealmModel realm = getContext().getRealm();
// KEYCLOAK-11890 - Avoid using HashMap.computeIfAbsent() to implement logic in outer if() block below,
// since per JDK-8071667 the remapping function should not modify the map during computation. While
// allowed on JDK 1.8, attempt of such a modification throws ConcurrentModificationException with JDK 9+
if (provider == null) {
final String realmId = realm == null ? null : realm.getId();
ProviderFactory<T> providerFactory = factory.getProviderFactory(clazz, realmId, componentId, modelGetter);
if (providerFactory != null) {
provider = providerFactory.create(this);
providers.put(hash, provider);
}
}
return provider;
return getOrCreateProvider(key, () -> factory.getProviderFactory(clazz, Optional.ofNullable(realm.getId()).orElse(null), componentId, modelGetter));
}
@Override