spring DiscoveredOperationsFactory 源码
springboot DiscoveredOperationsFactory 代码
文件路径:/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/DiscoveredOperationsFactory.java
/*
* Copyright 2012-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.actuate.endpoint.annotation;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumMap;
import java.util.Map;
import java.util.Objects;
import org.springframework.boot.actuate.endpoint.EndpointId;
import org.springframework.boot.actuate.endpoint.Operation;
import org.springframework.boot.actuate.endpoint.OperationType;
import org.springframework.boot.actuate.endpoint.invoke.OperationInvoker;
import org.springframework.boot.actuate.endpoint.invoke.OperationInvokerAdvisor;
import org.springframework.boot.actuate.endpoint.invoke.ParameterValueMapper;
import org.springframework.boot.actuate.endpoint.invoke.reflect.OperationMethod;
import org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker;
import org.springframework.core.MethodIntrospector;
import org.springframework.core.MethodIntrospector.MetadataLookup;
import org.springframework.core.annotation.MergedAnnotation;
import org.springframework.core.annotation.MergedAnnotations;
/**
* Factory to create an {@link Operation} for annotated methods on an
* {@link Endpoint @Endpoint} or {@link EndpointExtension @EndpointExtension}.
*
* @param <O> the operation type
* @author Andy Wilkinson
* @author Stephane Nicoll
* @author Phillip Webb
*/
abstract class DiscoveredOperationsFactory<O extends Operation> {
private static final Map<OperationType, Class<? extends Annotation>> OPERATION_TYPES;
static {
Map<OperationType, Class<? extends Annotation>> operationTypes = new EnumMap<>(OperationType.class);
operationTypes.put(OperationType.READ, ReadOperation.class);
operationTypes.put(OperationType.WRITE, WriteOperation.class);
operationTypes.put(OperationType.DELETE, DeleteOperation.class);
OPERATION_TYPES = Collections.unmodifiableMap(operationTypes);
}
private final ParameterValueMapper parameterValueMapper;
private final Collection<OperationInvokerAdvisor> invokerAdvisors;
DiscoveredOperationsFactory(ParameterValueMapper parameterValueMapper,
Collection<OperationInvokerAdvisor> invokerAdvisors) {
this.parameterValueMapper = parameterValueMapper;
this.invokerAdvisors = invokerAdvisors;
}
Collection<O> createOperations(EndpointId id, Object target) {
return MethodIntrospector
.selectMethods(target.getClass(), (MetadataLookup<O>) (method) -> createOperation(id, target, method))
.values();
}
private O createOperation(EndpointId endpointId, Object target, Method method) {
return OPERATION_TYPES.entrySet().stream()
.map((entry) -> createOperation(endpointId, target, method, entry.getKey(), entry.getValue()))
.filter(Objects::nonNull).findFirst().orElse(null);
}
private O createOperation(EndpointId endpointId, Object target, Method method, OperationType operationType,
Class<? extends Annotation> annotationType) {
MergedAnnotation<?> annotation = MergedAnnotations.from(method).get(annotationType);
if (!annotation.isPresent()) {
return null;
}
DiscoveredOperationMethod operationMethod = new DiscoveredOperationMethod(method, operationType,
annotation.asAnnotationAttributes());
OperationInvoker invoker = new ReflectiveOperationInvoker(target, operationMethod, this.parameterValueMapper);
invoker = applyAdvisors(endpointId, operationMethod, invoker);
return createOperation(endpointId, operationMethod, invoker);
}
private OperationInvoker applyAdvisors(EndpointId endpointId, OperationMethod operationMethod,
OperationInvoker invoker) {
if (this.invokerAdvisors != null) {
for (OperationInvokerAdvisor advisor : this.invokerAdvisors) {
invoker = advisor.apply(endpointId, operationMethod.getOperationType(), operationMethod.getParameters(),
invoker);
}
}
return invoker;
}
protected abstract O createOperation(EndpointId endpointId, DiscoveredOperationMethod operationMethod,
OperationInvoker invoker);
}
相关信息
相关文章
spring AbstractDiscoveredEndpoint 源码
spring AbstractDiscoveredOperation 源码
spring DiscoveredOperationMethod 源码
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- 本文标签: Spring Boot Java Spring
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