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DATACMNS-1534 - Cache BeanFactory lookup for EvaluationContextExtension.

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We now cache the BeanFactory lookup for EvaluationContextExtension within the ExtensionAwareEvalutationContextProvider to avoid (expensive) repeated context scans when creating the actual EvaluationContext.

Original pull request: #395.
This commit is contained in:
Christoph Strobl
2019-05-14 10:31:56 +02:00
committed by Oliver Drotbohm
parent 15969ee01f
commit d6bb21d24f
3 changed files with 41 additions and 9 deletions
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8
src/main/java/org/springframework/data/spel/ExtensionAwareEvaluationContextProvider.java
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@@ -25,7 +25,6 @@ import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.springframework.beans.factory.BeanFactory;
@@ -37,6 +36,7 @@ import org.springframework.data.spel.EvaluationContextExtensionInformation.Exten
import org.springframework.data.spel.EvaluationContextExtensionInformation.RootObjectInformation;
import org.springframework.data.spel.spi.EvaluationContextExtension;
import org.springframework.data.spel.spi.Function;
import org.springframework.data.util.Lazy;
import org.springframework.data.util.Optionals;
import org.springframework.expression.AccessException;
import org.springframework.expression.EvaluationContext;
@@ -66,7 +66,7 @@ public class ExtensionAwareEvaluationContextProvider implements EvaluationContex
private final Map<Class<?>, EvaluationContextExtensionInformation> extensionInformationCache = new ConcurrentHashMap<>();
private final Supplier<? extends Collection<? extends EvaluationContextExtension>> extensions;
private final Lazy<? extends Collection<? extends EvaluationContextExtension>> extensions;
private ListableBeanFactory beanFactory;
ExtensionAwareEvaluationContextProvider() {
@@ -81,7 +81,7 @@ public class ExtensionAwareEvaluationContextProvider implements EvaluationContex
*/
public ExtensionAwareEvaluationContextProvider(ListableBeanFactory beanFactory) {
this(() -> getExtensionsFrom(beanFactory));
this(Lazy.of(() -> getExtensionsFrom(beanFactory)));
this.beanFactory = beanFactory;
}
@@ -92,7 +92,7 @@ public class ExtensionAwareEvaluationContextProvider implements EvaluationContex
* @param extensions must not be {@literal null}.
*/
public ExtensionAwareEvaluationContextProvider(Collection<? extends EvaluationContextExtension> extensions) {
this(() -> extensions);
this(Lazy.of(extensions));
}
/* (non-Javadoc)