spring HttpMethodArgumentResolver 源码
spring HttpMethodArgumentResolver 代码
文件路径：/spring-web/src/main/java/org/springframework/web/service/invoker/HttpMethodArgumentResolver.java
/*
* Copyright 2002-2022 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.web.service.invoker;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.MethodParameter;
import org.springframework.http.HttpMethod;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* {@link HttpServiceArgumentResolver} that resolves the target
* request's HTTP method from an {@link HttpMethod} argument.
*
* @author Olga Maciaszek-Sharma
* @author Rossen Stoyanchev
* @since 6.0
*/
public class HttpMethodArgumentResolver implements HttpServiceArgumentResolver {
private static final Log logger = LogFactory.getLog(HttpMethodArgumentResolver.class);
@Override
public boolean resolve(
@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues) {
if (!parameter.getParameterType().equals(HttpMethod.class)) {
return false;
}
Assert.notNull(argument, "HttpMethod is required");
HttpMethod httpMethod = (HttpMethod) argument;
requestValues.setHttpMethod(httpMethod);
if (logger.isTraceEnabled()) {
logger.trace("Resolved HTTP method to: " + httpMethod.name());
}
return true;
}
}
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