org.springframework.web.reactive.result.condition

Class HeadersRequestCondition

java.lang.Object

org.springframework.web.reactive.result.condition.AbstractRequestCondition<HeadersRequestCondition>

org.springframework.web.reactive.result.condition.HeadersRequestCondition

All Implemented Interfaces:

RequestCondition<HeadersRequestCondition>

public final class HeadersRequestCondition
extends AbstractRequestCondition<HeadersRequestCondition>

A logical conjunction (' && ') request condition that matches a request against a set of header expressions with syntax defined in RequestMapping.headers().

Expressions passed to the constructor with header names 'Accept' or 'Content-Type' are ignored. See ConsumesRequestCondition and ProducesRequestCondition for those.

Since:

5.0

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
HeadersRequestCondition(String... headers) Create a new instance from the given header expressions.

Method Summary

Modifier and Type	Method and Description
HeadersRequestCondition	combine(HeadersRequestCondition other) Returns a new instance with the union of the header expressions from "this" and the "other" instance.
int	compareTo(HeadersRequestCondition other, ServerWebExchange exchange) Compare to another condition based on header expressions.
protected Collection<org.springframework.web.reactive.result.condition.HeadersRequestCondition.HeaderExpression>	getContent() Return the discrete items a request condition is composed of.
Set<NameValueExpression<String>>	getExpressions() Return the contained request header expressions.
HeadersRequestCondition	getMatchingCondition(ServerWebExchange exchange) Returns "this" instance if the request matches all expressions; or null otherwise.
protected String	getToStringInfix() The notation to use when printing discrete items of content.

Methods inherited from class org.springframework.web.reactive.result.condition.AbstractRequestCondition

equals, hashCode, isEmpty, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

HeadersRequestCondition

public HeadersRequestCondition(String... headers)

Create a new instance from the given header expressions. Expressions with header names 'Accept' or 'Content-Type' are ignored. See ConsumesRequestCondition and ProducesRequestCondition for those.

Parameters:

headers - media type expressions with syntax defined in RequestMapping.headers(); if 0, the condition will match to every request

Method Detail

getExpressions

public Set<NameValueExpression<String>> getExpressions()

Return the contained request header expressions.

getContent

protected Collection<org.springframework.web.reactive.result.condition.HeadersRequestCondition.HeaderExpression> getContent()

Description copied from class: AbstractRequestCondition

Return the discrete items a request condition is composed of.

For example URL patterns, HTTP request methods, param expressions, etc.

Specified by:

getContent in class AbstractRequestCondition<HeadersRequestCondition>

Returns:

a collection of objects (never null)

getToStringInfix

protected String getToStringInfix()

Description copied from class: AbstractRequestCondition

The notation to use when printing discrete items of content.

For example " || " for URL patterns or " && " for param expressions.

Specified by:

getToStringInfix in class AbstractRequestCondition<HeadersRequestCondition>

combine

public HeadersRequestCondition combine(HeadersRequestCondition other)

Returns a new instance with the union of the header expressions from "this" and the "other" instance.

Parameters:

other - the condition to combine with.

Returns:

a request condition instance that is the result of combining the two condition instances.

getMatchingCondition

@Nullable
public HeadersRequestCondition getMatchingCondition(ServerWebExchange exchange)

Returns "this" instance if the request matches all expressions; or null otherwise.

Returns:

a condition instance in case of a match or null otherwise.

compareTo

public int compareTo(HeadersRequestCondition other,
                     ServerWebExchange exchange)

Compare to another condition based on header expressions. A condition is considered to be a more specific match, if it has:

1. A greater number of expressions.
2. A greater number of non-negated expressions with a concrete value.

It is assumed that both instances have been obtained via getMatchingCondition(ServerWebExchange) and each instance contains the matching header expression only or is otherwise empty.