spring ConnectMapping 源码
spring ConnectMapping 代码
文件路径：/spring-messaging/src/main/java/org/springframework/messaging/rsocket/annotation/ConnectMapping.java
/*
* Copyright 2002-2019 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.messaging.rsocket.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import io.rsocket.ConnectionSetupPayload;
/**
* Annotation to map the initial {@link ConnectionSetupPayload} and subsequent
* metadata pushes onto a handler method.
*
* <p>This is a method-level annotation that can be combined with a type-level
* {@link org.springframework.messaging.handler.annotation.MessageMapping @MessageMapping}
* for a combined route pattern. It supports the same arguments as
* {@code @MessageMapping} but the return value must be {@code void}. On a
* server, handling can be asynchronous (e.g. {@code Mono<Void>}), in which
* case the connection is accepted if and when the {@code Mono<Void>} completes.
* On the client side this method is only a callback and does not affect the
* establishment of the connection.
*
* <p><strong>Note:</strong> an {@code @ConnectMapping} method may start
* requests to the remote through an
* {@link org.springframework.messaging.rsocket.RSocketRequester RSocketRequester}
* method argument, but it must do so independent of the handling thread (e.g.
* via subscribing on a different thread).
*
* @author Rossen Stoyanchev
* @since 5.2
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ConnectMapping {
/**
* Mappings expressed by this annotation to match to the route from the
* metadata of the initial {@link ConnectionSetupPayload} or in
* subsequent metadata pushes.
* <p>Depending on the configured
* {@link org.springframework.util.RouteMatcher RouteMatcher}, the pattern may be
* {@link org.springframework.util.AntPathMatcher AntPathMatcher} or
* {@link org.springframework.web.util.pattern.PathPattern PathPattern} based.
* <p>By default this is an empty array in which case it matches all
* {@link ConnectionSetupPayload} and metadata pushes.
*/
String[] value() default {};
}
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